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NOAA Technical Memorandum ERL PMEL-94

WESTERN AND CENTRAL TROPICAL PACIFIC SURFACE WESTERLY WINDS,

JULY 09, 1987 - JUNE 30, 1988,

FROM THE R. ATLAS et al. ANALYSIS OF SSM/I RESULTS

D. E. Harrison S. Hankin J. Davison K. O'Brien

Pacific Marine Environmental Laboratory Seattle, Washington December 1991

NATIONAL OCEANIC AND Environmental Research ATMOSPHERIC ADMINISTRATION Laboratoriesnoaa /

NOAA Technical Memorandum ERL PMEL-94

WESTERN AND CENTRAL TROPICAL PACIFIC SURFACE WESTERLY WINDS,

JULY 09, 1987 - JUNE 30, 1988,

FROM THE R. ATLAS et al. ANALYSIS OF SSM/I RESULTS

D. E. Harrison S. Hankin Pacific Marine Environmental Laboratory

J. Davison K. O'Brien Joint Institute for the Study of Atmosphere and Ocean University of Washington Seattle, Washington

Pacific Marine Environmental Laboratory Seattle, Washington December 1991

UNITED STATES NATIONAL OCEANIC AND Environmental Research DEPARTMENT OF COMMERCE ATMOSPHERIC ADMINISTRATION Laboratories

Robert A. Mosbacher John A. Knauss Joseph O. Fletcher Secretary Under Secretary for Oceans Director

and Atmosphere/Administrator

NOTICE

Mention of a commercial company or product does not constitute an endorsement by NOANERL. Use of information from this publication concerning proprietary products or the tests of such products for publicity or advertising purposes is not authorized.

Contribution No. 1337 from NOANPacific Marine Environmental Laboratory

For sale by the National Technical Information Service, 5285 Port Royal Road Springfield, VA 22161

11

CONTENTS

1. INTRODUCfION , 1

2. ACKNOWLEDGMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5

3. REFERENCES " 6

FIGURES

1. Composite westerly wind events from multi-decadal records of surface wind from

near-Dateline islands 8

2. Composite westerly wind events, with the climatological monthly mean wind

removed 9

3-8. Climatological monthly mean surface wind vectors, 1946-1989, from the trimmed

COADS data set 11

9-14. Climatological monthly mean surface wind vectors and sea surface temperature,

1946-1989, from the trimmed COADS data set 19

15-. Snapshots of the 6-hourly wind analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27

III

Western and Central Tropical Pacific Surface Westerly Winds, July 09, 1987 - June 30, 1988,

from the R. Atlas et ale Analysis of SSM/I Results

D.E. Harrison!, S. Hankin!, J. Davison2, and K. O'Brien2

1. INTRODUCTION The NASA SSMII (Special Sensor Microwave Imager) instrument has been used to produce

a special 6-hourly research surface wind field (see: Atlas et ai., 1991). Basically the vector field

represents a filtered combination of SSMII wind speeds (derived via the Wentz algorithm),

conventional surface wind observations and the ECMWF surface wind operational analysis as

described in Atlas et ai. (1991). The data are available for the period 09 July 1987-30 June 1988

(with some data gaps) from the NODS archive at JPL.

Although the data set is global, the geographical focus of the material presented here is the

western and central tropical Pacific ocean. The objective of this survey of the SSMII results is

to gain a better knowledge of the space and time characteristics of westerly surface wind

variability in this part of the world ocean.

Keen (1982) noted that tropical cyclone pairs occasionally form on either side of the

equator and create a brief period of strong equatorial westerly surface wind. Luther, Harrison

and Knox (1983) noted that brief episodes of westerly winds were a prominent aspect of daily

mean time series from a number of multi-decadal records from islands north and south of the

equator near the Dateline. A connection between ENSO periods and particularly strong

westerlies was noted by Luther et ai. (1983). Luther and Harrison (1984) showed that there was

a significant peak in zonal wind in a frequency band of perhaps 3 to 15 days at Bern Is. near the

equator, and noted that the westerly wind episodes would appear primarily in this frequency band

despite the fact that no corresponding easterly events were evident in the records. Harrison

(1987) considered the characteristics of monthly mean wind anomalies during ENSO periods

from 1955 to 1980 at the near-Dateline islands, and found that westerly anomalies tended to be

centered about the equator in late-summer/autumn months, to die away and then to reappear

shifted several degrees south of the equator in winter months; although each ENSO period has

its own characteristics, these shifts of westerly wind anomaly were found in almost every ENSO

period. Later work suggests that much of the monthly mean anomaly at these islands results

from the frequency and intensity of westerly wind events. Harrison and Luther (1990) presented

detailed spectral statistics for these, and other, tropical island wind records and found strong

zonal wind zonal coherence in most energetic period bands across 15 degrees of longitude, but

1 NOAAlPacific Environmental Laboratory, 7600 Sand Point Way N.E., Seattle, WA 98115-0070 2 Joint Institute for the Study of Atmosphere and Ocean, University of Washington, Seattle, WA 98195

meridional coherence for the high frequency band was found only for small meridional

separations and near the equator.

Harrison and Giese (1991) presented selected daily average vector results, intended

specifically to explore the space and time characteristics of westerly events; they proposed that

four distinct types of near-Dateline westerly behavior exist, and suggested a classification of these

events according to the location of the latitude of maximum westerly wind. Accordingly, they

spoke of Type N, C, S, and FS events according to whether the westerly maximum was a few

degrees north of the equator, centered about the equator, a few degrees south of the equator or

"far south", relative to the oceanic equatorial waveguide, (center 70 S to 100 S) of the equator.

Figures 1 and 2 present the time evolution of the wind composite events and the wind anomaly

composite events. Type Nand C events tend to occur in Boreal Summer and Fall; Type Sand

FS events tend to occur in Boreal Winter and Spring. They also presented frequency of

occurrence statistics, and attempted to explore the apparent connection between westerlies and

tropical depressions. The qualitative appearance of a strong connection between tropical

depressions and westerlies could only be examined in terms of named tropical cyclones; the

connection is not one-to-one, but this should be no surprise as many tropical depressions never

attain named storm status. Much work remains to be done on the latter topic. The results shown

here further buttress the notion that there is very often a strong connection between the two types

of tropical synoptic variability.

Apart from their interest as one aspect of the special behavior of the coupled atmosphere

ocean system in the western Pacific, near-equatorial westerly wind events can also drive

substantial oceanic response well away from their location. The existence of rapidly propagating

oceanic Kelvin motions (eastward phase speed of about 3 mis, 1.5 m/s and 1 m/s for the first

baroclinic vertical modes over a range of different ocean stratifications), and Rossby motions

(westward phase propagation at one-third the Kelvin phase speed for the corresponding vertical

mode) means that wind events of at least one week duration can force non-trivial response,

particularly to the east of the forcing region. Harrison and Giese (1988) showed some

preliminary ocean circulation model results that suggested the eastern Pacific amplitude of

response that might be expected from an idealized westerly event. Giese and Harrison (1990)

presented a more thorough analysis of the expected remote linear response to various idealized

westerly events, and contrasted these expectations with the behavior found in several fully

nonlinear ocean model experiments. For the wind events and stratification used, typically second

and higher vertical mode Kelvin response is more strongly forced than first mode response,

although the first mode response can dominate in sea level (one of the most easily observed

quantities). The magnitude and pattern of sea surface temperature response depend very much

on the conditions prevailing in the ocean at the time of the wind event (e.g., Schopf and

Harrison, 1983; Harrison and Schopf, 1984). Efforts to observe the remote response to westerly

events has produced a rather unclear result; the sea level response in the first baroclinic mode

2

has been observed on a number of occasions (e.g., Eriksen et ai., 1983; Miller et ai., 1988), but

the sea level signal of the higher baroclinic modes is typically at or below the noise level of the

measurement or of other natural oceanic variability; the zonal current fluctuations observed have

shown a rather complicated vertical structure (McPhaden et ai., 1988), but the near-surface flow

is not inconsistent with linear results (Harrison and Giese, 1989); sea surface temperature changes

are not inconsistent with simple ideas but are typically small enough from a single event to be

easily obscured by other oceanic variability (Harrison and Giese, 1988; McPhaden et ai., 1988).

Because the oceanic circulation in the equatorial waveguide is driven by wind stress changes all

across the Pacific, responds quickly to changes in local forcing, and has considerable natural

variability of its own (e.g.,. the instability waves of the cold tongue), observing the response to

westerly wind events is proving to be a considerable observational challenge. If simple ideas and

model results are correct, as few as three or four vigorous westerly events properly spaced

throughout the year can produce near-equatorial sea surface temperature changes and patterns

very much like those described from observations by Rasmusson and Carpenter (1982). Despite

this, and other work on westerly wind events, no fully three dimensional (x,y,t) phenomenology

of this type of variability has yet been available. The TOGA-COARE field program has among

its objectives to observe the characteristics of westerly events that occur during its intensive

observing period, Nov. 1992-Feb. 1993. The TOGA-TAO array of near-equatorial moorings that

is under deployment at present will greatly increase the number and quality of surface

meteorological observations, as well as subsurface ocean thermal data.

The only existing data sets able to address the atmospheric structure of westerly wind

events are the operational 6-hourly fields produced by various meteorological agencies. With

support from NASA, the author has undertaken an examination of recent (post-1986) analyses.

The characteristics of surface westerly wind variability in the U.S. Navy's FNOC A-29 and A-30

surface marine wind data set and the European Center for Medium-Range Weather Forecasting

(ECMWF) data sets will be reported in future 1echnical memos. The first effort is the present

survey of winds from the research SSM/I data set developed by NASA.

Figures 3 through 8 present the climatological monthly mean wind field, over the period

1946-1989, from the trimmed COADS data set of surface marine observations. The format and

region are identical to that which will be used later to display the SSM/I observations; data are

presented over the region l300E to 1500W by 200S to 200N, vectors are plotted every 2 degrees,

and the zonal wind is contoured every 2 m/s over the area in which there is westerly flow within

10 degrees of the equator. There is no smoothing of the monthly mean fields. Note that there

are significant regions of westerly wind even in the monthly mean climatology; from December

through April there are westerlies (with U >2 m S-I) from (0°,l300E) eastward and southward max

over an area that varies with the month, while from May through November there are westerlies

north of the equator somewhere west of 155°E, with the maximum strength and eastward extent

occurring in August. In November, December, and January, westerlies typically exist on both

3

sides of the equator for at least 15 degrees of longitude. These climatological patterns of

westerlies are typically quite clear even during the ENSO and near-ENSO period covered by the

SSM/I data set.

Because TOGA-COARE is fundamentally about trying to understand the air-sea interaction

processes that control the evolution of the western Pacific warm pool, it seems of interest to

examine briefly the climatological sea surface temperature (SST) patterns over the same time

period and region (data also from COADS). The monthly mean climatological SST fields are

shown in Figures 9 to 14; SST has been smoothed with a ten-degree zonal running average in

order to make the contours a little smoother. The climatological vector mean winds are

superimposed on the SST field of the same month. Two well-known aspects of the seasonal

cycle are clearly evident: the warmest waters are about 29.5°C, and appear in the southern

hemisphere between December and April and in the northern hemisphere between July and

September. No clear pattern between SST and monthly mean wind speed or direction emerges

from examination month to month; sometimes the warmest water is in regions of very light mean

wind, and sometimes where the mean wind is substantial. As noted in the program planning

documents of the TOGA-COARE field program, the processes that jointly determine the mean

winds and mean SST patterns in this part of the world are not obvious. But let's return to the

issue at hand; westerly wind variability in this region.

Before moving on to the SSM/I winds, it may be useful to recall the patterns of the

composite Type N, S, C, and FS westerly events. The reader will see in the SSM/I figures that

follow counterparts of each type of behavior. Much of the time the characteristic behavior will

be seen further west than the Dateline; in this rather modest ENSO event the typical western

Pacific atmospheric deep convection did not move very far east and, as the westerly variability

seems frequently to be associated with the region of deep convection, the westerlies shown here

are not located as far east as they seem to be in more intense ENSO events. The detailed

connections between surface near-equatorial westerlies, convection, and tropical depressions

deserve far more work than they have been given to date. As the amount of data from this area

increases due to the TOGA-TAO array and improved reporting of conventional surface marine

observations, and the quality of the operational analyses consequently improves in this region,

undoubtedly further study will take place.

Daily snapshots of the 6-hourly surface wind field produced by Atlas et al. (1991) are

presented here (Figures 15 on). In each figure the areas between 100 S and lOON, where zonal

wind is westerly, are contoured with a 2 mls contour interval. Plots are presented over the region

200 S to 200 N by 1300 E to 150oW, and the larger islands are superimposed on each plot. Note

that this analysis produces winds over land as well as sea; the land masking will typically

obscure the vectors over land, but they will occasionally "peek" out from behind the land contour.

No catalog of westerly wind events is offered here. Over much of the one-year duration of this

data set there is near-equatorial westerly wind somewhere within this region. Periods of

4

moderate (U about 5-7 mls) to strong (U >10 mls) westerly winds are found throughout max max

the period June 1987 to April 1988; except for the data gap between Dec 1987 and Jan 1988, it

is unusual to find a period longer than a week in which near-equatorial westerlies are less than

3 mls. The prevalence of westerlies is expected, given the climatological results presented previously.

The feasibility of presenting zonal wind anomaly plots was explored, but there are bias

differences between the SSM/I and COADS climatological fields, and there is noise in the

climatology. Together, these make the anomaly fields difficult to look at except in periods of

very strong anomaly. Thus no anomaly fields are shown here. A useful general rule of thumb

for viewing the daily fields is that localized features with westerly wind in excess of 4 mls are

always anomalous, relative to this climatology. The time period presented, July 1987-June 1988

spans the end of an ENSO period and the beginning of a tropical Pacific cold phase. Thus it is

unlikely that the variability shown here is "typical" of a randomly selected one-year interval of

time.

The space and time scales of the westerly flow will be presented from the perspective of

cross spectral analysis when a longer SSM/I data set has been prepared. At the time of writing,

the NASA group is preparing a second year of SSM/I vectors; it is hoped that these will be

available for analysis early in 1992. With a two year time series, with one full year outside of

an ENSO period, a much better perspective on the westerly variability will be available.

How much should the characteristics of these SSM/I fields be believed? The best approach

would seem to be direct comparison with the TOGA-TAO buoy data. However, no clear answer

is possible at this time, because the TOGA-TAO array was only partially deployed during this

time period. Over this time period there were some buoys at 165°E at 2°N, 0°, 2°S and 50 S, but

none of the planned moorings at higher latitudes at 165°E or any of the planned moorings at

155°E or at 147°E were deployed. Thus only very limited comparison is possible in this region.

Evaluation of the quantitative skill of this analysis will have be carried out post-1991, when most

of the TAO array should have been deployed in the western Pacific. A secondary question

concerns the "value added" of the SSM/I wind speeds to the ECMWF 6-hourly analyses; this can

be easily assessed once both analyses are available, and will be examined once the ECMWF

analyses are decoded at PMEL; preliminary examination indicates that patterns and pattern

evolution are very similar but that wind speed differences of 1 to 2 mls are common.

2. ACKNOWLEDGMENTS This work was supported by NASA project UPN-578-22-13-02 to PMEL.

5

3. REFERENCES Atlas, R., S.C. Bloom, R.N. Hoffman, J.V. Ardizzone, and G. Brin. (1991). Space-based surface

wind vectors to aid understanding of air-sea interactions. Eos, 72(18), 20l.

Ericksen, c.c., M.B. Blumenthal, S.P. Hayes, and P. Ripa. (1983). Wind-generated equatorial

Kelvin waves observed across the Pacific Ocean. J. Phys. Oceanogr, 13, 1622-1640.

Harrison, D.E., and P.S. Schopf. (1984). Kelvin-wave-induced anomalous advection and the

onset of surface warming in EI Nino events. Mon. Wea. Rev., 112, 923-933.

Harrison, D.E. (1987). Monthly mean island surface winds in the central tropical Pacific and

EI Nino. Mon. Wea. Rev., 115, 3133-3145.

Harrison, D.E., and D.S. Luther. (1990). Surface winds from tropical Pacific islands:

Climatological statistics. J. CUm., 3, 251-27l.

Harrison, D.E., and B. S. Giese. (1991). Episodes of surface westerly winds as observed from

islands in the western tropical Pacific. J. Geophys. Res., 96, 3221-3237.

Keen, R. A. (1982). The role of cross-equatorial tropical cyclone pairs in the Southern

Oscillation. Mon. Wea. Rev., 110, 1405-1416.

Luther, D.S., D.E. Harrison, and R.A. Knox. (1983). Zonal winds in the central equatorial

Pacific and the onset of EI Nino. Science, 222, 327-330.

Luther, D.S., and D.E. Harrison. (1984). Observing long-period fluctuations of surface winds

in the tropical Pacific; initial results from island data. Mon. Wea. Rev., 112, 185-202.

McPhaden, M.J., H.P. Freitag, S.P. Hayes, B.c. Taft, Z. Chen, and K. Wyrtki. (1988). The

response of the equatorial ocean to a westerly wind burst in May 1986. J. Geophys. Res.,

93, 10,589-10,603.

Miller, L., R.E. Cheney, and B.c. Douglas. (1988). GEOSAT altimeter observations of Kelvin

waves and the 1986-87 EI Nino. Science, 239, 52-54.

Rasmusson, E.M., and T.M. Carpenter. (1982). Variations in tropical sea surface temperature

and surface wind fields associated with the Southern OscillationlEl Nino. Mar. Wea. Rev.,

110, 354-384.

Schopf, P.S., and D.E. Harrison. (1983). On equatorial waves and EI Nino. I: Influence of

initial states on wave-induced currents and warming. J. Phys. Oceanogr., 13, 936-948.

6

FIGURES

7

- - -

--

COMPOSITE 1955-1980 WESTERLY WIND EVENTS FROM NEAR-DATELINE ISLANDS

WIND FIELDS 10. TYPE:

,-.. , .,.......,//' -- .... o. -h,;~~-::"-~"':=--';::"'''''--':-~''::-=:---::::-::---'.2''''=----=-- ...~''''':;:--::''''''''':~. ---=_-----:::---7....:-=--=-=--7-::-7---+

w .......

:::> =~~~~~~~~=~~~c=~~~~~I

o

N ~ ~~~~-~~~~~~~--~~~~~

~ -~~~~-~~~~~~~~~~

-10. ~--~-~~~-~~-------

-20. \ ........ ..-. - ....................

I I I I I -10 -5 t = 0 5 10

~ 10 ms- I DAYS

- .- , - . 10. - - - - '" '" - - - - -

....... - - - ,. o.

......... .......,. -- -......... ,--.~! - --..-. __ - Iw 0 :::> ::. ::. .::. ~::. '\ ~ J1,{I ;= .....

-10. "" ~ ~ ....... - - - - - - .......:5 ..-. -- ....... ----_...-.-----...-------..---

-20. " " " " ....................

I I I I f -10 -5 t = 0 5 10

~ JOms-1 DAYS

10.

~~~//////////~~~~~~

~ - ~ / / / / / / I I I I I. I I / ~ ~

o w o. ~ ,;' ~ ? " ' '... \ ~ ~:::::"'~ ~ \:. ~ ~ I, " ~ ~ :::> sI- " I, I, , \ \... ~ ~ ~ ~~~~~~ \". \.. \ I, " ~ -10. ~ ~: ~" ....... , ....... ~;---~:::---.~::::.~~~: '. ~

'" I

-20. .....

I I I I I -10 -5 t = 0 5 10

~ 10ms-1 DAYS

10.

~-----~-//~~~~~/~/~ ----~-~-///L/////--/

w :::> I

o

FS ~ -10.

-20. -------... -- -.......

I I I I I -10 -5 t = 0 5 10

I~ 10 ms- DAYS

Fig. 1. Composite westerly wind events from multi-decadal records of surface wind from near-Dateline islands (Harrison and Giese, 1991). Four types of wind events were described, according to the latitude of the maximum westerly wind: Type N. C, S or FS.

8

COMPOSITE 1955-1980 WESTERLY WIND EVENTS FROM NEAR-DATELINE ISLANDS

ANOMALY FIELDS TYPE:

10.

w o

3,

I-

-10. " :;)

" N

-20. ... " " I I I I I

-10 -5 t = 0 5 10

~ 10ms-1 DAYS

10.

" --. ---+ -- -- -" ...... ~-- .....o. t----=-----,,.--::-~----;;:--::;---=-----=::;-_::::=:;:-::::=~='::::;;;;c~:;_::::=___=_::::__:::_:__:_. ----:---:----:-1

w - --.. -.--.. -...... .... :;) cI-

o ..., --... ,3 -10.

-20.

I I I I I -10 -5 t = 0 5 10

~ 10ms-1 DAYS

10.

o. +-~~----':-=--7~~::--==-~_::-=_~..::_~:.:==~~~~,:::: :---.::_::::-:::_::-"::--::---:::---:=---t w - --~~ - ...o ,, -=- ";;::#0 ~::>+ -:::-.::::::.. ':::.... -::::::"":::2- :=. ~i2 S3 -10. -;; 7 /' -:7 ~~:::-::: -: :- ..

-20.

I I I I I -10 -5 t = 0 5 10

~ 10ms-1 DAYS

10.

\

o. -t-.---- ----:::---==-----=--:--...,.-~___:-_:____'_:_.... ---,-:'----'_:__--:-----:---:----:----::--:---:-----r w

:;) ,- - ,. I- \. ~ ~-:.-~'... \.. , \3

o

-10. , ~ .......... -- " -- FS - ---+ ----.- --.. ........ .....

-...-.. .......... , - ... ':_ -20.

I I I I I -10 -5 t = 0 5 10

~ 10ms-1 DAYS

Fig. 2. Composite westerly wind events, with the climatological monthly mean wind removed (Harrison and Giese, 1991).

9

Figs.� 3-8. Climatological monthly mean surface wind vectors, 1946-1989, from the trimmed COADS data set, over the region 20°5-200N by 1300E-1500W. Between lOoN and 100S the area in which zonal wind is westerly is contoured. Major islands are shown as well.

11�

TIME: JAN

COADS Monthly Climatology (1946- 1989)

20'N -t-------"---------"---------L-------'--------'--------'--------'------,.,.--_j_

y/////////--_......._---/ / .....................__ _ /' ----V//////..........-----.......-.....--- //..-4-'-- ---..-· .... -a-..V///---------v-~.....--~/--- ----/..........----- / ~/~~~

~///-----/~-------//---/---/~///////~~~~~--

100 N V///~--/-----//////~//////~~~///~~

V/ /--~--///////~//~///~/~/~~~~/-// / ~ ~ ////~//'l~~///~~~€'€47 ... ~

//' /// -/ ..........////~/~---~ I / I//'/'._'//////// ~_ ·,.. .- •• , .. '-~ w

£:)

::J , " \ I I I / 1// I/' / /'--_.....-- ., ... .. :;..--+ .. • ..... ." ~ I

" \ \ , \" rf. / / .-'--......../ ..........--- ----~ ... ., .. .., .�3 .... "~~\' I 11// /.-'-//..........--..........----- -

, ~I 'j;"... "" 'N"" \ / / I////~..................../........-\ ' - '3. " .....~ \ \ I \" I I I I / / / / / / ~~..........__� ..

• , , - ~..'" • " '" I ~ \ -.-.... / 1.-' / I / 1/ I ......../ / /-10·S - ~ I' " • .1 ..

'" ," "'- "~I ... ~/ .... /.-'///.-'/.......�1.-'~

.... - ~ , " , , " " • .. .. , • - / / I ,.,. .... I ~..... I / , " I/'/ /--

.. - ...... " " " " " " .... 1. - ...... - -' .... - - - - - I.' ;I / .;' / /;I .....---

,-"""'~~~~~--~-----~-~--~~--/•-,........................--.........,-----...._........_--------------20·S

1300[ 1500

[ 1700[ 170·W 1500 W

CONTOUR: UWND LONGITUDE

Horizontal Wind (MIS) ~ 10.0

TIME: FEB

COADS Monthly Climatology (1946-1989)

200 N -t-------'--------'--------L-------'--------'--------'--------'------,~-+

¥////////........_------..........-------------------~ V///////-..--..------..........---~---........----~--~~.....-~/////--------~-~---~~~.....----~----- ..........-~.....--~~ ~////------------~~--/~~------/~~//~--~/

~/---///---/-----/~//~~////--//////~-;;/~//100 N

-;.///~//////~~//////~//////~~///

y// /////---/////////---~/~--~------~~.....--~

///// /////........../ ///// -~~----------~~ w I Io'/I/I/////// /-// -------~ ..-~~ .... • ••••• £:)

::J O· .~ I/I/// -----~..--........~_ .. < .....�I

3 "" \ \ \ \ \..... I • .-'.-'/ //........ / ........~--~----- • ••� ....... ., \ "I" \ 1'\ \ I ''''' / 11///_-_-- __....-a----

'\\)l" \ \ \ / f~/...---....................//- ~ , .... ~ .......... , ~ I \ \ -- //1/// ---..,...--~ _ -~ ..... ,L'\, \ "I '~I / 1/// --//-10·S .

..... - - - - -. • .... " \ • ". \ I I I I / I I /....... / .............. /'---• 4 --.,;",. / / I I I / ,. ",;" I / 11"""..- -

.. " , , , .......... - '" ... - ....... J,;"" , .. - ~ ,. ;I ,. I"'" / /

"""" , .... ~ ...... _~,~;;;--/,.~,.- ....~ ~

~........................... ---....~-...._-------,----------20·S

_ 1300

[ 1500 E 170·[ 1700 W 150"W CONTOUR: UWND LONGITUDE


12�

TIME: MAR


20'N -t---------L--------'--------J'-----.l..-----"--------'---------'---.:--_+_

//////........./ ................-.......-_-.......-~--~---------------------_ ......... V/////-----~------~----...,.....--~------~~ V-------------------------~~~~~ ~~~...,.....-- ___ ~------------------~---~~~---~~/~~------~---/~-

lOON ~~/----/--~------------~----~----~-----~~/~~~~~~ //--------/----//~~/~~///----/4//~/---~~~

//////---/---////~~---/~////.4///---~~-------/~

,/ / / /,/// ......................./////----////-----------~--/~~~---------

w� o ::::> I- O'

3 I//---/~//..-/....-~.......�

,� '/<}/////,//~- ~

IK/ 1/,/ / // ...../ ~.......-- .. •• ...

,� \ \ I ... / I ... - ....... - / , .._.....--........- __� 10'S

..... -"', ... ,~

",,',"'-~~------,--;~~--~----,,',~,~"~_~__ J ~~~-~~-~__

~_"'_"'_"'~_t ~ 20'S

130'[ 150'[ 170'[ 170'W 1500W

CONTOUR: UWND� LONGITUDE


TIME: APR�

COADS Monthly Climatology (1946- 1989)�

20'N -t---------L-------'----I...-----'------'----------'--------'--...,..--_t_

...-.--........,~~-.....,_........~~a::_:.~~~~ -------------~------..,..--; ~

~a-a ...........---__~_,.."..~~~~/~~/~------~---------

~~~~~----/~~~~--~---~.--.--.--~---~---~///~/~~~~

10'N ';,./ /-----------------~.--~----~---~~~~---~~// .......-- -/---------------------//--------/---/--------~---~/////~~///

/~ --~ .........~----~~~~~~/---~//-.......------.---/----.------./ ./ / / / ..............--....-....-.......----.......----� ....----------/ //~--------------/----------

w� ~." .. -/'-/'--.......-_.--------~......../.......-.......--------.......-~ o

L� "" ,,~ ~ ,,- __ .- ., __- __-----......-.-~-......... _.....-::::> I- O' ....... -- ~--- ..... -,...- ~~...--....... .. ........ ..-3

'.. ~. (7 , / / /' / './.------~---- ...........--..,I .. '"'- .. , ,. - • / /.-/,.- ",..,...---" ~

""� , "-. - ., . , -- ... / -- -",.. /-------..---~..� / , , ,,\\, __ ,. __ A .,,- .. -...--.~

10'S� .. ""'~~,~,,-,~-----~----~

20·S

130'[ 150'[ 170'[ 170'W 150'W

CONTOUR: UWND� LONGITUDE

Horizontal Wind (MiS) ~ 10.0

13�

TIME MAY


20.N + ----.JL- -"--- ---'- --l- -'------..--_+L- ----'

-. • •• • •• • .. E--~~~ ~~~~___

-, ........� .,..~~~~~~~~~~------~.-.-----------~~~~-;;:-.---~~~~---~/10·N

--------------------------------~---~---~---~~//~/ ------ ----------------.--.--~--/.--.--.-----........-.--------------

.". -_-_ .....------~--.~ -.- 4....... ~ ........... ...........�w o .. - - - / ..----__ •• I ....... ..... ~ ::>

~

I- o·� 3 .�- "'" --........... -- -- ---,. .-----............----.. .. ..... ~

'. 'I- , ..... ,- - - - - ....... .", ...... - ."....-- -........--__....-.-.--..-A iii' "'"

,~"~-~--------/---~~~~ 10·S

20·5

130'[ 150·[ 170·[ 170·W 150'W CONTOUR: UWND LONGITUDE


TIME: JUN


. .. . .. ..... , • • 4 _~~~~~~

' ",",.,.z;.--~~~~/~~~

, " ,- -_ ~ ~----.--~~.--/~.---.---~~~//~/lOON

t , ., • .... .__~ /~---//~//---/

' ~ - - - - ---~--------------/.--.........-----....---..-----

~/ ~ ,. ~ .. - - - .... -- ,.-- _--..-...: =---~

//~. . .------~---~~~_.~ .~~~~"'~~ w o ::> I o·

I 0 - __ - _ - -,....-- ...---- ~..........-- ~..........

3 .. _

~ '- ~

,

'- .....

'_ - - __-__-..... ....---'. I .. ...~~

, ,-- --- ----- '.---------------~-...........-<C • ...... <

10·5

20·5

130·[

CONTOUR: UWNO

150·[ 170·[

LONGITUDE 170·W 150·W


14�

TIME: JUL


20·N -+.,.......------J'------'--------'------"-----"--------'------"-----.;----t""", ~ -..... ,. • if II( .. " :c .. otF .... ;F:Fc IF'" ~~~

, ", -.. ........... ,-.. --~~ II 'I .... c ..... _ E:::e:EE :E"'Q E~~~~~

\ \ \ , ,------- c ~ 4F" ...... <E E"oe ..~~~~..,_/~

111"' • •••• ~<E~~4F~~4F~~~~~~..,_/

I//~, "_' __ '" •• _~.~~~~~~~~~~~~~~~~~~ 10·N //j ,2'.. , , - - - '----.............----~-~~-~-...-----,

/ -~~~'." - ,---------/~--~~~~~~~~ / , _., , • r •• • ....... - -..---..... ~~ ............

II" " .. __ .... .... ,-..-.._,-- ........ -~.--~.--.--~ ...........~ ~" ........... w o I "". '0 , , , , , , , - - - ..... ~ .... , ......... --........_- .... " ~~~~~ ........... ~ O·

.................. " ...... , ..... , , , " ..... _-...__-------... '... if ... -s--~~~ ~ • ... -=

10·5

20·5

130·E 150·E 170·E 170·W 150·W


Horizontal Wind (MIS) ------;.. 10.0

TIME: AUG


10·N

w o ~ O·

~

10·5

20·5

130·E 150·E 170·E 170"W 150·W


Horizontal Wind (MIS) ------;.. 10.0

15�

-----

TIME SEP

COADS Monthly Climatology (1 946- 1989)

20'N -+~-~~--'------'-----'---------'~~~~--'----~--'--~~~~--'---.::-~~+-

, ,

, I I " --------------.......--~ 4-"" ........ «--..--~~..__~~:O(

"/'".,, , f • , , -...........-~_a_ .. I :a---~~......_~~~//

10'N " ._---------~~----,-~-~~~--"

"'-,--"~--,,'-"',\\

,--- - . \ ........---"" """\",,,�"" ....... , ------......._,-, ,..................""�

w o ,--, .... ~~----~--~~---,~~~~~,~,,'~::> l- O'

S� 'lI .. 'Il .... .,..,,~

.... d.. ..'II ... "!-4:-.............�

10°5

20°5

130'[ 1500 [ 1700

[ 1700 W 150'W

CONTOUR: UWNO LONGITUDE

Horizontal Wind (MiS) ------;.. 10.0

TIME OCT


20'N -+-~~~--'----~-'-~-~~'---------'-~~~----'-------'--~~~---'--......--+

..... ...........-_~-......-~--- ..........~

.,. ----"-------~-_.... ~~--~-~----......---~/., 10'N

.... _~-------~------~~--~----, ..... ----,----", -- "", --,-,-,--,---"~-" , ,""

. ,-- ....... ----_....... ,-,.......... ,-- , ,........., ..........� w o ::> l-

S O'

, , r _ .... - ............. 'Ii. .. ... :If. ~-........

, ..... - - " .... - - -....... I - --_ :e--_______.' .. "' .. ~...........

~ -I' ,", - - - - - --;' -_--.-.---.....---.---~

~\\~_ ,--------.-----~----~ ----~ \", ", ....... ,-, .. -------.......--.-~

10°5 ----,..........,~ ""~ ,''--,-------~• ~"""""""''''''''''''''''''''__''-'--''''''''''' A'''' .'!:- _

~............................., " .........., '"---, _---_ ~" ," " ,~, _, - ""'""---

20°5 -_ ,-", "",~ , _,-,, ,.......... ........�

130'[

CONTOUR: UWND

150'[ 170'[

LONGITUDE 1700 W 1500 W

Horizontal Wind (MiS) ------;.. 10.0

16�

TIME NOV


20'N -+--------'----~-------"-----'-----~------L----'-----____.c_-_+_

v,.......--~~------~ ///~~

~~~~--~ "~~""""~~_!""3F~~~~~""""-----~~~~~___ t-~~~~ ..--~.-;:--.-v-.-;:-

10'N .- --------------.....--/~.-.-....--/---- //..---------~---~---~---- ---------/...-_-~ ~~___

, ~ .................-....--/-/~-.....----......---~ , , " ~ .,. - - - ---- ...... ------- --...--...- y"--- ..........- ........ ... « :"'-... ..........~-...-~~ .........�

,,~.,.~------ --,-~-,~ ~~~~~,,'~

~ - ._--_ ,-------_ ,w o ~ O'

• - ,.,. -....-__ .......--_. • • • II '4:Eo s--~

~ ,- .r" "'/""""'-/""'-"'-----~

,- -,/.-- / '///-//_---~

, I~-,/~///I///.,...-//-/~/'" ,0,'';: ..... __ ..... __- _ . / -//- / ,.,.

10'S , ...... ~ "",~--, ..... _---~-_ ..... _----/"'------~"""'~,,~~-----~-----~-~----~~ , '\ ---_ _------------

........................................................, _ _--..J>.... "-- _�

__.........................................~- , _..t , __............................__........._� 20'S

130'[ 150'[ 170'[ 170'W 150'W



TIME: DEC�

COADS Monthly Climatology (1946-1989)�

20'N -j- -----.J'-- --'--- --.L -'-- ..J- --.L -'------..---_ _+_

~////~-_....--~----,.......-.....--//....-.....--///,.......-....--....---~ ~

~/ ---~----~ ~~ ///~,.......--~~-V

~~~--~--~~~-----~---/~---~---~

~---------------~~~-----/---~~~---/'~~--------~-----~--10'N ........_....--_,.......-/---------~----------;;;----~//~~~~----------~~-

///....---/-/.....--.....--~.....--~/'~~/'~/'---~/----~---~~~

1/ /'//..----- .....__ /.....----------///~~ ~ ///---.,...- //--............-.,...-~ •• •• :!'--~~

w ,~~~~~~~~/-/----~------------~--..........�o ::J \ .....: .............< ....... \" ,0, \ .. / "..,.- ........~....-.--.----~ I- O'

:~t-;sl.~ ;--~::~::~~....--~ . \ ~ /,// ////-//-//-.........� ,. \ /1///////,//""""-///

, • 1 '/' I 1/ , I / / I 1// ~/ /10'S

, ' ... , - '- _ , .... I" , I "/" I 1/ 11//r " - " " - - - - - ~ I .. ~ -- .. I 1/ ". ,//' _............. ,', ,',.~ ~-,~--~-----~~~~..... ~

.........................................................................................,-~_ __ .................._---"'-_ " _~ __-----~,------~

130

20'S 0

[ 150'[ 170'[ 170'W 150·W



17�

Figs. 9-14. Climatological monthly mean surface wind vectors and sea surface temperature, 1946-1989, from the trimmed COADS data set.

19�

TIME: JAN


20'N + ---'- ----'- L- -'--- -'---- ..L- --"---_.,---_ _+_

10"N

w o ::J I- 0"

3

10'S

20'S

130'E 150"E 170"E 170"W 150"W

UWNO • VWNO -------:» 10.0 LONGITUDE

Sea Surface Temperature (deg C)

TIME FEB�

COADS Monthly Climotology (1946-1989)�

20 0 N -+-------'--------'-----'-----'-------'---------'---------"----.,----+

lOON

..--

w 0 ::J I- 0°

~ --'

10°5

20°5

1300 E 1500 E l70 0 E 1700 W 150'W

UWNO • VWNO -------:» 10.0 LONGITUDE


20�

TIME MAR

200 N + ---l

100 N

w a ::l I- 0°

3

10°5

20°5�

1300[�

UWNO • VWNO------:;> 10.0

TIME: APR

20.N + "--

w a ::l I- o·

3

10·5

20·5

130'E

UWNO • VWNO------:;> 10.0

COADS Monthly Climotology (1946-1989)

...L- ---'-- L- ...L- ---1. L-----.r-_+

1700 W1700 [

LONGITUDE


1500 [ 1500 W


---" ...L .-.....I ...L L ---'--_--.:__+_

150·E 1700 E 1700 W 1500 W

LONGITUDE


21�

TIME MAY


200 N +----'-------'----L-----'-------'------'------'---I""--r

lOON

w o ::::> /

~ -'

10°5

20°5

1300 E 1500 E 1700 E 1700 W 1500 W

UWNO • VWNO--7 10.0 LONGITUDE


TIME: JUN


10·N

, . / <:::::> /' " ,

uJ o 2 0°

~ -'

10·5

20·5

130·E l50·E 1700 E 170·W 150·W

UWNO. VWNO--------:;;' 10.0 LONGITUDE


22

3

TIMf JUI


20'N --h----.--.,........,-...L---L-------.JL-----.l--_---L ...l.- L-,:------t"

, \ \ \

I I I ,

I I lOON�

". / --.<~-,-.:-:...�

~~~ ~ ~ ~ ~9 "� w

o I , ,.() , ~ 0°

100S

200 S

130'E 1500 E 1700 E 170'W 1500 W UWND . VWND-~ 10.0 LONGITUDE


TIME AUG


___ -.L ~~-.--L I .-ll---~-_---L.-----'--____..._-T20 0 N "TT \ " \ " ................ ..... ----------......,.......,...---~---T"-" ...............~~~_p. =_=_"1hoe--;:;.-It:

111' \, -.....-.-.... --.....:

/ I /, "" -- -. - -..-.~~'-<-~~.............~<__f....,,_-#-///1" ,,' __ ....... ~~~ __~~~~~~~~

lOON

10°5

20°5

1300 E 150'E 1700 E 170'W 150'W

UWND • VWNQ----;;:" 10.0 LONGITUDE


23�

TIME SEP


20'N + L -"-- ---' L -"-- ---' L-----..---_+

10'N

w o ::::J I- O'

~

10'S

20'S

130'[ 150'[ 170'[ 170'W 1S0'W

UWND • VWND-;;' 10.0 LONGITUDE


TIME OCT


200N --\- -'- ---'- -"--- ---' --'-- L-__

lOON

, ,"- . ow , . . ,::::J l 0° i=' « -'

10°5

200 S I I I 1300

[ 150'[ 1700 [ 1700 W 1500 W

UWND. VWNO~ 10.0 LONGITUDE


24�

TIME NOV


20·N -+-----'-------l.------'-----.J'--------'------'-------'---.:---t

10·N

O·

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W UWNO • VWNO -----;> 10.0 LONGITUDE


TIME DEC


20 0 N

lOON

10°5

20°5

1300 E

UWNO • VWNO -_..;;. 10.0 1500 E

Sea Surface Temper"a.ture (deg C)

25

Figs. 15-. Snapshots of the 6-hourly wind analysis from a blending of the ECMWF surface wind analysis and the SSM/I wind speed data set, based on the work of Atlas et al. (1991). One snapshot is shown from each day. Data gaps exist in the record; no figure is shown for times from data gaps. The major gap is between 3 December 1987 and 13 January 1988. Westerly surface zonal wind, in the area between lOoN and 100 S is contoured.

27

TIME: 09-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMI/Atlos gridded winds

lO'N

w o ~

~ O'

10'S

20'S

130'[ 150'[ 170'[

LONGITUDE


170'W 150'W

TIME: 10-JUL-1987 18:00


w o ::::> t::

~

130'[ 150'[ 170'[ 1700W 150'W

LONGITUDE


28

TIME : 11-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMIjAtlas gridded winds

lOON

w £:)

=> I-

3 o·

10·S

20·S

130·[

CONTOUR: U_WIND

1500 [ 1700

[

LONGITUDE


170·W 150·W

TIME : 12-JUL-1987 18:00


lOON

w £:)

~

3 o·

10·S

20·S

130·[ 150·[ 170·[

LONGITUDE


170·W 150·W

29

TIME: 13-JUL-1987 18:00


w o ::> I

~

130"E 150"E 170"E 170·W 150·W

LONGITUDE

Horizontal Wind (Mis)

- 10.0

TIME: 14-JUL-1987 18:00


w o ::> I

~

130·E 150·E 170·E 170·W 150·W

CONTOUR: U_WIND LONGITUDE


- 10.0

30

TIME : 15-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMIjAtias gridded winds

10·N

w o ::::l t

~ O·

- .. - _..-.-- ,, t-

10·S

20·S

130·E

CONTOUR: U_WIND

150·E 170·E

LONGITUDE

Horizontal Wind (Mis) ------:. 10.0

170'W 150"W

TIME : 16-JUL-1987 18:00


10·N

w o ::::l t

~ O·

10'S

20·S

130·E 150·E 170'E 170"W 150"W CONTOUR: U_WlND LONGITUDE

Horizontal Wind (Mis) ------:. 10.0

31

TIME: 17-JUL-1987 18:00

6 hrly 2.5x2.0 de9ree SSMIjAtlos gridded winds

10·N

w Cl

i=? o·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W

CONTOUR: U_WINO LONGITUDE

Horizontal Wind (MiS)

-- 10.0

TIME: 18-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMIjAtlos gridded winds

10·N

w Cl

i=? o· ~

10·5

20·5

130·[ 150·[ 170·[ 170·W 1S0·W CONTOUR: U_WIND LONGITUDE


- 10.0

32

TIME: 19-JUL-1987 18:00


1300 E 1500 E 1700 E 1700 W 1500W

CONTOUR: U_WlNO LONGITUDE


TIME: 22-JUL-1987 18:00


lOON

10°5

20°5

1300 E 1500 E 1700 E 1700 W 1500 W CONTOUR: U_WINO LONGITUDE


33

TIME: 23-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMI/Atlas gridded winds

10'N

w o ~

~ O·

10·5

20·5

130'[ 150'[ 170·[

LONGITUDE


170·W 1500W

TIME: 24-JUL-1987 18:00


w o ::::> f

~

130'[ 150·[ 170·[ 1700W 150·W

LONGITUDE


34

TIME : 25-JUL-1987 18:00

6 hrly 2.5x2.0 de9ree SSMI/Atlas gridded winds

w o ::::> I

~

200 S

1300 E

CONlOOR: U_WIND

1500 E 1700 E LONGITUDE


- 10.0

1700W 1500 W

TIME : 26-JUL-1987 18:00


lOaN

w o ::::> I

~ 0°

100 S

200 S

1300 E CONlOUR: U_WIND



- 10.0

1700W 1500W

35

TIME: 27-JUL-1987 18:00

6 hrly 2.5x2.0 degree SSMIjAtias gridded winds

200 N -+---.--_L--.....-7--;r~----'------'--------'-::,..--"....,-;".,..J..------'- --::;*

lOON

w o ::;)

3t- 0°

10°5

20°5

1300 E

CONTOUR: U_WIND



1700 W 1500 W

TIME : 28-JUL-1987 18:00


100 N

w o ::;) t

3

10°5

20°5

1300 E 1500 E 1700 E 1700 W 1500 W



36

TIME: 29-JUL-1987 18:00


10·N

w o ~

~ O·

10·5

20·5

130·E CONTOUR: U_WINO

150·E 170·E LONGITUDE


170·W 150·W

TIME : 30-JUL-1987 18:00


10·N

w o ~

~ O·

10·5

20·5

130·E 150·E 170·E 1700W 1500W



37

TIME: 31-JUL-1987 18:00


10'N

w o => t- O·

~

10'5

20·5

130'[ 150'[ 170·[ 170·W 150·W


Horizontal Wind (MiS) ------;;. 10.0

TIME: 01-AUG-1987 18:00


10'N

w o i? o·

~

10·5

20·5

130·[ 150'[ 170·[ 170·W 150·W

COIlTOUR: U_WIND LONGITUDE


38

TIME: 02-AUG-1987 18:00


1300 E 1500 E 1700 E LONGITUDE


1700 W

TIME: 03-AUG-1987 18:00


150"W

100 N -""......,..-.1

10°5

20°5

1300 E

CONTOUR: U_WIND

1500 E 1700 E

LONGITUDE


170"W 1500 W

39�

TIME : 04-AUG-1987 18:00


10"N

10"S

130

20"S 0

[ 150"[ 170"[ 170"W 1500 W



TIME: 05-AUG-1987 18:00


100 N

w Cl�

~ 0"�

~

10"S

20"S

1300 [

CONTOUR: U_WINO

150"[ 170"[

LONGITUDE 170"W 150"W


40�

--

TIME : 06-AUG- 1987 18:00

6 hrly 2.5x2.0 degree SSMI/Allas gridded winds

w o :::J I

~

130·E 1500 E 170·E 1700W 1500W

LONGITUDE


TIME: 07-AUG-1987 18:00


-//~-~~--~~~ *~~~~~~~~~---~~~ / / __ " - __--- 4 __ ..._-__----~

.......-- - ..-..- ......... ,......-.-,�

lOON

w o :::J I

~

10"5

20·5

130·E 150·E 170·E 1700W 150·W

CONTOUR: U_WlND LONGITUDE


41�

TIME : 08-AUG-1987 18:00


10·N

10·5

20·5

130·[ 150·[ 170·[ 170"'W 150·W



-- 10.0

TIME : 09-AUG-1987 18:00


10·N

w o ~ 0· •

~

10·5

20·5

130·[ 150·[ 1700 [ 170"'W 150"'W

LONGITUDE


- 10.0

42�

TIME : 10-AUG-1987 18:00


100 N

w o ~

~ O·

10·S

20·S

1300 E CONTOUR: u_WINO

150·E 170'E

LONGITUDE

Horizontal Wind (MiS) ___ 10.0

170"'W 150·W

TIME : 11-AUG-1987 18:00


lOON

10'S

20'S

1300 E

CONTOUR: U_WIND

1500 E 1700 E

LONGITUDE


-- 10.0

170'W 150"'W

43�

TIME : 12-AUG-1987 18:00


10"N

w a ~

3t

10"S

20·S

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE 170"W 150·W


TIME : 13-AUG-1987 18:00


20"N --r-~----"-'--""':-4P~:;:::::::::~~~~~~""'.:/.~~::>";p....-Jh.-7IP""'77::~~t

',-~~--------...,...-~----~---/...-----------~//'" ~ \ \ ~~~~~~---------//--~---~~! t t ...-~///~ // - __...,...-~.--~

, . ". ......~///~- //-------~~ 100 N f \ ,. / /~//.........~ / __///-:= .. ~~/ _�

\ ,/ / /////.. " ". -----..- ""'''''' // ,~----~..........-......... ..\ \ - , I ,/ ",'''''' • ".. /..- - ---.-............---

\. , , - . - - ...... w a

3 ~ o·

10·S

20·S

130·[

CONTOUR: U_WIND

150·[ 170·[



44�

TIME : 14-AUG-1987 18:00


lOON

W Q

~

~ O·

10·5

20·5

130·( 1500 ( 170·(

LONGITUDE


- 10.0

1700W

TIME: I 5-AUG- 1987 18:00 6 hrly 2.5x2.0 degree SSMIjAtlas gridded winds

150·W

lOON

10·5

20·5

1300 (

CONTOUR: U_W1ND

1500 ( 170·(

LONGITUDE


- 10.0

1700W 1500 W

45�

TIME : 16-AUG-1987 18:00


10·N

10·5

20·5

130·E 150·E 1700 E 170"W 150"W CONTOUR: U_WIND LONGITUDE

Horizontal Wind (MIS)

-- 10.0

TIME : 17-AUG-1987 18:00


10·N

w Cl

i=? 0°

~

10°5

20°5

1300 E 1500 E 1700 E 170"W 150"W

LONGITUDE

Horizontal Wind (MIS) __ 10.0

46�

TIME: 18-AUG-1987 18:00 6 hrly 2.5x2.0 degree SSM!/Atlos gridded winds

20"N -t-~----....,l..",,---~':Pi_--":;~~::oF=oo~~~~7.....,..--;------'---,.--r

,,~ ~------_!-"E"'~~ " ~---'-";"""'E---o!-~~~IF-:E~

lOON

w o ~ 0"

~

10'5

20"5

130"[ 150'[ 1700 [ 1700W 1500W

comOUR, U_W1ND LONGITUDE

Horizontal Wind (MiS) - 10.0

TIME: 19-AUG-1987 18:00

6 hrly 2.5x2.0 degree SSM!/Atlos gridded winds

20'N +----'-----.---.--.l"'-.-:lI=~~..-- __.........--__';:7.:JII~_;_......==_op_.......�

\, -~~--~~----....-:;~~....., '\ -.~. « «..-~~.:--=-~ 1 • -;,--__~~e--1 " ------~ ~2f • 1! ..... « ....-__~~

'''' ~----.-:-_. ~. ///~~--.,....,./...............,.� , f \ \ • , _ _ _ __ __ ...............~....- / /...-------.�lOON

~

..... /-- ...... -/

.,/I ----~-'""'""-~+-I----w

o ~ 0"

~

10'5

20°5

130"[ 1500 [ 1700

[ 1700W 1500W comOUR: U_W1ND LONGITUDE


- 10.0

47�

TIME : 20-AUG-1987 18:00�

6 hrly 2.5x2.0 degree SSMI/Allas gridded winds�

10·N

w o

3 ~ o·

10°5

130

20·5 0

[ 1500 [ 170·[ 170·W 1500 W

LONGITUOE


TIME : 21-AUG-1987 18:00


100 N

w o

3 ~ 0°

10·5

20°5

130·[ 1500[ 1700 E 170"W 150·W

CONTOUR: U_W1ND LONGITUDE


48

5

TIME: 22-AUG-1987 18:00


10·N

w a� ~ o·�

10·5

20·5

130·E 150·E 1700 E 170·W 150"W



- 10.0

TIME : 23-AUG-1987 18:00


lOON

10"5

20·5

1300 E 150·E 1700 E 170"W 150"W



- 10.0

49�

TIME: 27-AUG-1987 18:00

6 hrly 2.5x2.0 degree SSMtjAtios gridded winds

10·N

w o ::;) t

3 o·

10·S

20·5

130·E CONTOUR: U_WIND



- 10.0

170·W 1500W

TIME : 28-AUG-1987 18:00


10·N

w o ::;) t

3 o·

10·S

20·5


150·E 170·E

LONGITUDE


- 10.0

170"W 1500W

50

TIME : 29-AUG-1987 18:00


10'N

w o :::> f

~

100 S

200 S

130'[ 150'[ 170'[ l70'W 1500 W


Horizontal Wind (MiS) -------»- 10.0

TIME: 30-AUG-1987 18:00


w o :::> f

~ ---'

130'[ 150'[ 1700[ 1700 W l500 W


Horizontal Wind (MiS) -------»- 10.0

51

TIME: 31-AUG-1987 18:00


200 N -l--------"-----l-----'--------'--~__'=_~~_r_:r_:;,......,,..........-_r_-t_

lOON

w o ::> I- 0°

3

10°5

20°5

1300 E 1500 E 1700 E 1700 W 1500 W



TIME: 01-SEP-1987 18:00


w o ::> I

3

1300 E 1500 E 1700 E 1700 W 1500W CONTOUR: U_WIND LONGITUDE


52

TIME : 02-SEP-1987 18:00

6 hrly 2.5x2.0 degree SSMI/Atla::; gridded winds

10·N

w Cl ::::> t

3 o·

10·5

20·5

130"[

CONTOUR: U_WlND

150"[ 170·[

LONGITUDE


170"W 150"W

TIME : 03-SEP-1987 18:00


10·N

w Cl ::::> t

3 o·

10·5

20·5

130"[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


170"W 150"W

53

TIME : 04-SEP-1987 18:00

6 hrly 2.5x2.0 degree SSMIjAtlas 9ridded winds

10'N

w o

3 ~ o·

10·S

20'S

130'[ 150·[ 170·[ 1700W 1500W

LONGITUDE


TIME: 05-SEP-1987 18:00�

6 hrly 2.5x2.0 de9ree SSMIjAtlas 9ridded winds�

10'N

w o :::>

3t

10·S

20·S

130'[ 150'[ 170·[ 1700W lSO·W



54�

TIME: 06-SEP-1987 18:00

6 hrly 2.5x2.0 degree SSM!/Atlas gridded winds

10'N

w o

~

~ 0'

10'S

20'S

130'[

CONTOUR: U_WIND

150'[ 170'[

LONGITUDE

Horizontal Wind (Mis) ~ 10.0

170'W 150'W

TIME: 07-SEP-1987 18:00


10'N

w o

~

~ 0'

10'S

20'S

130'[ 150'[ 170'[

LONGITUDE


170'W 150'W

55

TIME : 08-SEP-1987 18:00


10·N

w� Cl� ;:)� .... ~

10·S

20·S

130·[ 150·[ 170·[ 170"W 150·W



TIME: 09-SEP-1987 18:00


w Cl ;:) .... ~

130·[ 150·[ 170·[ 170"W 150"W LONGITUDE


56�

TIME: 1O-SEP- 1987 18:00


10·N

w a ~ O·

~

10·S

20·S

130'[ 150·[ 170'[ 170'W 150'W CONTOUR: U_WINO LONGITUDE

Horizontal Wind (MiS) ---;. 10.0

TIME: 11-SEP-1987 18:00


10·N

w a ~ O'

~

10'S

20'S

130'[

CONTOUR: U_WINO

150'[ 170'[

LONGITUDE 170'W 1500W


57�

TIME : 12-SEP- 1987 18:00

6 hrly 2.5x2.0 degree SSMJ/Atlas gridded winds

20"N -r\\~/.r777.T17--T--;----'----"7--...,....,.pl-:;e==-:::;:::::::::-:;;i;~~~T \~ ~ 0( E·~ ~

'~EE ~OO(~~d.....~ "" • E __~~~~

, ---~---~//~

\ ..............10"N ----...-...-.--.-- /"'/~

'--...-- ........ -."..- /y'� ..... //---+-- -.,... .....

10·S

20·S

130·E 150"E 170·E 170"W 150·W


Horizontal Wind (MiS) -----;;. 10.0

TIME : 13-SEP- 1987 18:00

6 hrly 2.5x2.0 degree SSMJ/Atlas gridded winds

10"N

w o

3 ~ o·

10·S

20·S

130·E 150·E 170·E 170"W 1SO"W CONTOUR: U_WIND LONGITUDE

Horizontal Wind (Mis) -----;;. 10.0

58�

TIME: 14-SEP-1987 18:00


10'N , \

, \

w a ::::> t

§ O'

\ , \

\

10'S

20'S

130·[ 150·[ 170'[ 170·W 150·W CONTOUR: U_WIND LONGITUDE


--- 10.0

TIME: 15-SEP-1987 18:00 _


10'N

w a�

§ ~ O'�

10'S

20'S

130·[ 150·[ 170·[ 170"W 150"W CONTOUR: U_WIND LONGITUDE


-- 10.0

59�

TIME : 16-SEP-1987 18:00


20"N -+----'----------'-------l------.,..L-------'---~..........~=_::;;;;F""""" ...-+�

10·N

w o :::J t- O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W



TIME: 17-SEP-1987 18:00


10·N

w o E o· 3

10·5

20·5

130·[ 150·E 170·E 170·W 150·W



60

TIME: 18-SEP-1987 18:00


w o :J

3t


150'E 170·E LONGITUDE

Horizontal Wind (MiS) ----"" 10.0

170·W 150·W

TIME: 19-5EP-1987 18:00


10'N

w o :J t

3 o·

10·S

20·S

130'E CONTOUR: U_WIND

150·E 170·E

LONGITUDE

Horizontal Wind (MiS) ----"" 10.0

1700W 1500W

61

TIME: 20-SEP-1987 18:00


10·N

w Cl ::J I

~ O·

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


- 10.0

1700W

TIME: 21-SEP-1987 18:00


150·W

10·N

w Cl ::J I

~ O·

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


- 10.0

170·W 1S0·W

62

TIME : 22-SEP-1987 18:00


10·N

w Cl ::::l I

~ O·

10·S

20·S

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


1700W 1500W

TIME : 23-SEP-1987 18:00


10·N

w Cl

~

~ O·

10·S

20·S

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE 1700W 1500W


63

TIME: 24-SEP-1987 18:00


l0·N

w o ~ I

3 o·

20·5

130·[

CONTOUR: U_WINO

150·[ 170·[

LONGITUDE

Horizontal Wind (MiS) _ 10.0

l70·W 150·W

TIME: 25-SEP-1987 18:00


10·N

w o ~ I

3 o·

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


- 10.0

170·W l50·W

64

TIME: 26-SEP-1987 18:00


10·N

w o ~ O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 1500W



- 10.0

TIME: 27-SEP-1987 18:00


10·N

10·5

20·5

150·[ 170·[ 1700W 150·W

LONGITUDE


65

TIME: 28-SEP-1987 18:00


10·N

w o :J I- o· 3

10·S

20·S

130·E 150·E 170·E 1700W 1500W CONTOUR: U_WIND LONGITUDE


-- 10.0

TIME: 29-SEP-1987 18:00


200 N -1---.---~:'--7---;r---,------J,.----+....---:--_l..-__---l...----.. _,.l--........,r-1"""""'::-IL--+

\ " , t 1 \ '- I I • I . /,\ \ , ,'\'- ,....--- ,/ ,/ / ,... .. \""'-- ,....---///11/\ " ....... '--- .--a----// I J / ....

lOON 1----/-- --- - I J 1/ ....

I / \,. ---_ ...... --- 1/ '" /' 1/-" '--- - ...... // ---// ,//

\, .-_ -----~/ ---- - .....--- .... w \-- \' \ ....__ ~-- '-..: :J

,....----_o I :'--..- ,-_ -.......-_----- ----------_ '.:::

~a-=~~::-.. ........... \,_ ~.........__ _ ~ ~3 ~~~,-.....-- ,~- ~ -~ ~ ~--~,~~---. oE" -----....~

....... ~......... ............... • _ 4;0 4;0--~-.....,~"-...~ "-_.....~ ~-....---~-.....~~-.....,~--,.........

--.;:!I&-,I.~-~~"-...,"--~"~~----.....'" 10·S

::---....--.......~...........,', -.... -.....~-- -....,~ ........ '----..--~", --..........---- ,"- I_--- -.....,'+~\\,-_......... ,,'\

20·S

130·E 150·E 170·E 1700W 150·W



- 10.0

66

TIME: 30-SEP-1987 18:00


10·N

w o ::;)

t:

~

10·5

20·5


150·E 170·E

LONGITUDE


170·W 150·W

TIME: 01-0CT-1987 18:00


10·N

w o ::;) I

§ O·

10·5

20·5


15O·E 170·E LONGITUDE


170·W 150·W

67

TIME : 02-0CT- 1987 18:00


20·N -1----l-----'----h,..----,;,--..-J--~_:! =+.............,---L..--~_.'''"''''''

10·N

,, , t " _I •••• - "' \ \ - \ \ ",." 4-""--~ , . \ ,,-, -/ I I"'" - .-".------ ......... -..

. ,,~--// //........ , ---/-------~---:

... --- ' - ...// / ,.,,-----------~--~ \'J "'- - ~ '-.-/,." ... ---...../------/--/-"., 1,//'-/ -"" .-- --//---/..,......................-:

I/t:--¥"/~'" ~

... ' - -. , -

• - q I ----,." V--...,......_.......~ ,- I I ... __-~ ..,.....-c

w Cl ::> t- O·

~

10·5

20·5

130·[ 150·[ 170·[ 170"W 150"W CONTOUR: U_WlND LONGITUDE


TIME : 03-0CT- 1987 18:00


10·N

w Cl ::> t-- O·

~

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE 170·W 150"W


68

TIME: 04-·0CT-1987 18:00


lO·N

w o ~

3t

10·5

20·5

130·( 150·( 170·(

LONGITUDE


170·W 1500W

TIME: 05-0CT-1987 18:00


10·N

w o i? ~

o·

10·5

20·5

1300 ( 150·E 170·( 170·W 1500W



69

TIME: 08-0CT-1987 18:00


10·N

10·5

20·5

130·[

CONTOUR: U_WlND

150·[ 170·[

LONGITUDE

Horizontal Wind (MiS) -----..,. 10.0

170"W 150"W

TIME: 09-0CT-1987 18:00


10·N

w o :::> ~

~

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE

Horizontal Wind (MiS) -----..,. 10.0

170·W 150·W

\

70

3

TIME : 10- OCT-1987 18:00


100 N

w o ::::> t::

10°5

20°5

1300 [

CONTOUR: u_WIND

1500 [ 1700

[

LONGITUDE


1700 W 1500W

TIME : 11-0CT 1987 18:00


100 N

w o E 3

o·

10°5

20°5

1300 [ 1500

[ 1700 [ 1700 W 1500 W



71

TIME : 12-0CT- 1987 18:00


10·N

w o :::J

§ I- O·

10·5

20·5

130"[ 150'[ 170·[ 170·W 150·W



TIME: 13-0CT-1987 18:00


10'N

w o :::J t:: O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W



72

TIME : 14-0CT- 1987 18:00


10·N

I..oJ a ~ o· ~

10·S

20·S

130·E 150·E 170·E 170·W 1500W CONTOUR: U_WIND LONGITUDE


TIME : 15-0CT 1987 18:00


10·N

I..oJ a ~ O·

~

10·S

20·S

130·E 150·E 170·E 170·W 1500W CONTOUR: U_WIND LONGITUDE


73

TIME: 16-0CT-1987 18:00


10·N

w o ::::> t-

~ O·

10·S

20·S

130'E CONTOUR: u_WIND

TIME:



- 10.0

170"'1/

17-0CT-1987 18:00


150·W

w o ::::> t-

~

130'E 150'E 170·E 170"'1/ 150·W CONTOUR: U_WIND LONGITUDE


- 10.0

74

TIME: 18-0CT-1987 18:00


10·N

w Cl

~ O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 1500W


Horizontal Wind (MiS) -----;. 10.0

TIME: 19-0CT-1987 18:00


10·N

w Cl

~ O·

~

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[



75

TIME: 20-0CT-1987 18:00


10·N

w o ::> t::

~

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


1700W 1500W

TIME : 21-0CT-1987 18:00


10·N

w o i? ~

o·

10·5

20·5

130·[ 150·[ 170·[ 1700W 150·W CONTOUR: U_WIND LONGITUDE


76�

TIME: 23-0CT-1987 18:00


10·N

w o :::> t

~

10·5

20·5

130"[ 150·[ 170·[ 170·W 150·W



-- 10.0

TIME: 24-0CT-1987 18:00


10·N

w o ~ O·�

~

10·5

20·5

130·[ 150·[ 170·[ 170"W 150·W



- 10.0

77�

TIME : 25-0CT-1987 18:00

6 hrly 2.5x2.0 degree SSMljAtias gridded winds

130"[ 1500 [ 170"[ 170·W 150·W



TIME : 26-0CT-1987 18:00

6 hrly 2.5x2.0 degree SSMljAtias gridded winds

w a ::J r

~

130"[

CONTOUR: U_WIND

150"[ 170·[



78�

TIME: 27-0CT-1987 18:00


v--------~~ 7'/' ,-- - ...... 4 ~~•

:k/ ~~....... '" ~----~¥"" ...... _--~~.--::

::;...--- ...--- --- '" E-----.____.____ -- "" -----~~~/~ ;./.-- ~-.____ .---- ¥" __ - --a--~~ //~

lOON -.........---/~.".. --- .--- ---- .~---~~ ..........---- --//¥"~--- __-- .. I I I ~.......... ---~,...

,..//_-//~--/ ../-- ~/-tj;0~__ - "///--// j/'/"'~"" --_ __ ....

. ,,..//,,,~ j' .• , ...... J'.- ,"-_ .

... - 1'1//----_ .. ··,-·-', .... •·· , :!-.. - ~ ,., I ,.. _ ~- • ... .. • , <) - , " "- .. #'

\ '-.-- .......-- " --_ " - - .~..........,"'--" ~ , I ~---",--"""",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,~', ,-- ,, I

10·5 ~,~,',--..--..,", ,'" ~'-,.........,', , ~~"-.., ,'~~ --=--- =---" , , ~---.., ,',~~ __~ ,~~'..'\,"~~~

,...- -- ,-------~~,"",~'-'''' 20·5

1JO·E 1S0·E 170·E 170·W 1S0·W



TIME : 28-0CT-1987 18:00


w o :J ~

~

1JO·E 1S0·E 170·E 170·W 1S0OW CONTOUR: U_W1ND LONGITUDE


79�

TIME : 29-0CT-1987 18:00


10·N

w o :::l

§t- O·

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W



TIME: 30-0CT-1987 18:00


w o :::l

§t

130·[ 150·[ 170·[ 1700W 1500W CONTOUR: U_WIND LONGITUDE


80

TIME : 31 -OCT- 1987 18:00


10"N --Io->o-s::-

w o ~ O·

~

10·5

20"5

130"[ 150"[ 170·[ 170"'W 150"'W



TIME: 01 -NOV-1987 18:00


10·N

w o :::J I- O·

~

10·5

20·5

130"[ 150·[ 170"[ 170"'W 150"'W

CONTOUR: U_WlNO LONGITUDE


81�

TIME: 02-NOY-1987 18:00


O·

10·5

20·5

130'E 150'E 170'E

LONGITUDE


1700W

TIME: 03-NOY-1987 18:00


1500W

10'N

10'5

20'5

130'E 150'E 170'E

LONGITUDE


1700W 1500W

82�

TIME: 04-NOV-1987 18:00


10·N

w Cl ::::J I

~

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


170"W 150·W

TIME: 05-NOV-1987 18:00


10·N

w Cl ::::J I

~ O·

10·5

20·5

130·[

CONTOUR: u_WIND

150·[ 170·[

LONGITUDE


170"W 150·W

83

TIME: 06-NOY-1987 18:00

6 hrly 2.5)(2.0 degree SSMI/Atlas gridded winds

10·N

w Cl

3 ~ o·

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W

CONTOU~: U_WIND LONGITUDE

Horizontal Wind (MiS) ------;. 10.0

TIME: 07-NOY-1987 18:00


10·N

w Cl

3 ~ o·

10·5

20·5

130·[

CONTOU~: U_WIND

150·[ 170'[

LONGITUDE 170·W 150'W

Horizontal Wind (Mis) ------;. 10.0

84�

TIME: OB-NOV-19B7 1B:00


10·N

w o i? o· ~

10·S

20·S

130·E 150·E 170·E l70"W 150·W



TIME: 09-NOV-19B7 1B:00


10·N

10·S

20·S

130·E

CONTOUR: U_WlND

150·E 170·E

LONGITUDE

Horizontal Wind (MIS) ------;. 10.0

170"W 150"W

85�

TIME: 10-NOV-1987 18:00


lOON

0°

10°5

20°5

1JooE 1500 E 1700 E

LONGITUDE


170"W 1500 W

TIME : 11 NOV-1987 18:00


lOON

w Cl :::) I

~ o·

10·5

20·5

1JooE

CONTOUR: U_WlND

1500 E 1700 E

LONGITUDE


170·W 150"W

86

TIME: 12-NOV-1987 18:00


lOON

10°5

20°5

130"E 1500 E 170"E 170"W 150"W



- 10.0

TIME: 13-NOV-1987 18:00


lOON

w Cl ~ I- O·

3 " ............,. ' '''/'

10°5

20°5

1300 E 1500 E 1700 E 170"W 150"W



- 10.0

87�

TIME: 14-NOV-1987 18:00


10·N

10·5

20·5

130·[ 150·[ 170·[ 170·W 150"W


Horizontal Wind (MiS) ---+ 10.0

TIME: 15-NOV-1987 18:00


10·N

10·5

20·5

130·[ 150·[ 170'[ 170'W 150·W


Horizontal Wind (MiS) ---+ 10.0

88

TIME: 16-NOV-1987 18:00


10·N

w o :::J

§ I- 0"

10·5

20·5

130·E 150·E 170·E 170~ 15O~



TIME: 17-NOV-1987 18:00


10"N

0"

10"5

20"5

130·E 15O"E 170"E 170~ 15O~

LONGITUDE


89�

TIME: 18-NOV-1987 18:00


::v-/////---- "'E'-7ZL/j //,/ I-oo!"'"".e==;;;:--////_.~c... ~E ~z:--7?/7/////

l--~=~~/~" "*"~c .. 04: E'~ ~////////

~//~---~///{d//~/. lOON /------..---//~~~~~/~/;5-//"//~ ---- - - -/ ~...--~/~--------..,..........--//~/

/Io-.......~.....~~-------/////t~~~!:::J~~~~~~--..-/ - \ ......__

w o "'Y'~~~~,~~ '"' ~ .... ...-/-- ----~ I- O· ~.,,/,....;;-i""'-~~~."'~,,~_/_---- ......~ ~~~I_~~~~'\~c •• ~~.~~~~~~~

100S

20·S

130·[

CONTOUR: U_WIND

1500 [ 1700

[

LONGITUDE 1700W 150"W


TIME: 19-NOV-1987 18:00


lOON

w o ~ I

~

..... ..--~ .. liE <I ...... •• ~....-~

10·S ~ -/ r"· '""ill! 4" ... ~-~"E--r

--..._-~

200 S

130·[ 150·[ 170·[ 170·W 150"W CONTOUR: U_WIND LONGITUDE


90�

TIME: 20-NOV-1987 18:00

6 hrly 2.5x2.0 degree SSMI/Allos gridded winds

10'N

w o ::::> I

~

10'S

20'S


150'E 170'E LONGITUDE


170"W 150"W

TIME: 21-NOV-1987 18:00


10'N

w o ::::> I

~

10'S

20'S


150'E 1700 E LONGITUDE


170"W 150"W

91

TIME: 22-NOV-1987 18:00


10·N

w o ::;) I- O·

~

10·5

\., ...............~---

.,. ... \ l ,.. -,.............-...-- ..... • .. I ,.. -...-...-.--....... ,

20·5.

130·E 150·E 170·E 170·W 150·W



TIME: 23-NOV- 1987 18:00


10·N

w o ::;) I- O·

~

10·5

20·5


150·E 170·E

LONGITUDE 170·W 1500W


92�

TIME: 24-NOV-1987 18:00�

6 hrly 2.5x2.0 degree SSMI/Atlas gridded winds�

10·N

w o

3 ~ o·

10·5

20·5

150·[ 170·[ 170"W 150"W LONGITUDE


-- 10.0

TIME: 25-NOV-1987 18:00�


10·N

w o

3 ~ o·

10·5

20·5

1JOO[ 1500[ 170·[ 170"W 150"W

LONGITUDE


-- 10.0

93

TIME: 26-NOV-1987 18:00


10·N

10·S

20·S

130"[ 150·[ 170·[ 170"'W 150"'W CONTOUR: U_W1ND LONGITUDE

Horizontal Wind (MiS) -----+ 10.0

TIME: 27-NOV-1987 18:00


10·N

w Cl :J I- O·

~

10·S

20·S

130·[ 150"[ 170·[ 170"'W 150"'W LONGITUDE

Horizontal Wind (MiS) -----+ 10.0

94�

TIME: 28-NOV-1987 18:00


10'N

w Cl

i:? o· S�

10·5

20·5

130·E 150·E 170·E 150"W



-- 10.0

TIME: 29-NOV-1987 18:00


10·N

w Cl

i:? o·

S

10·5

20·5

130·E 150·E 170"E 17O"W 150"W CONTOUR: U_W1ND LONGITUDE


- 10.0

95�

TIME: 30-NOV-1987 18:00


lOON

lLJ C ::> I- 0°

~ , , _.

10°5

20°5

1300 E 1500E 1700E 170"'W 150"'W



TIME: 01-DEC-1987 18:00


lOON

lLJ C

~ 0°

~

10°5

20°5

1300 E 1500 E 1700 E 170"'W 150"'W



96�

TIME: 02-DEC-1987 18:00


, ,~~, <~~~~r////~ y---- E E E _~~~~///~

/",.-- E.4: ~ «;""'''' OE' ~~~~~~~X~ .I--~ Oil! .. >C aP~//~~~~:E' <

10"N I ,,-~~~---~¥////~~~//~ j ;;0---//.......-:<�I----.............................,./..........---~////~-----~---//////~~///// ..........~ < ._,.//

I \ \ / ,.- / ,/'// / I /--,.- ,/ / ,/ /-_. < ~ .... --

1\\ \ /11/1 /~--

'\ -.Q-.." \

--~ \1/_-----\ 0 1/..- _

\ 11//--10"5

20"5

130"[ 150"[ 170"[ 170"W 150"W


Horizontal Wind (MiS) __ 10.0

TIME: 13-JAN-1988 18:00


10"N

10·5 -+--0-~~

20·5

130"[ 150"[ 170"[ 170"W 150"W



-- 10.0

97

TIME : 14-JAN-1988 18:00


10·N

UJ o :::> r

~ O·

10·S

20·S

130·[

CONTOUR: U_WIND

150"[ 170"[

LONGITUDE


170aw 150"W

TIME : 15-JAN-1988 18:00


10"N

UJ o ~

~ 0"

10·S

20"S

130"[

CONTOUR: U_WIND

150"[ 170·[

LONGITUDE 170aw 150aw


98�

TIME : 16-JAN-1988 18:00


10·N

w o ~ O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W



TIME: 17-JAN-1988 18:00


y¥""' --//.............---.......--................... ~ ~//-~ ....-....- ~........~------~--//~~~--.-~~~-1

~.------/~--~--~~~ y_ ~//~ "'""''' ~~~~/~~UE=~~

10·N E.... ...""""""----~~~//-- ---y-~~~~/~~~

- ....................../~~//~--~~~/~~--~~::::aE---1

-//¥""'-- ~~............~........~~-~--~--~ / / //-- ..,..,-----//..---..........~~~ ......_:o;:�

w� /--o ,,-,//"/ ............~~ -~ ~ l- .......~.- _~1i c < ~__ tE�

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------=~....'-DI~-y___~

_ .. 00( E" .......-:;�......................�

10'5

20'5

130'[

CONTOUR: U_WIND

150·[ 170'[

LONGITUDE 170·W 150·W


99�

TIME : 18-JAN- 1988 18:00


v~ ~..............- -_......... . , - / -///---~

""""'-=.-,.....-- ///.---- e """ .--- .--- ....-.AI ..................�

~__~:-~//...........~~~/..--~ /~:.-::..O..........,

t-:F-::F-.I!:::--;y--~~~~ of!<E E"€< 4E'~/~~/~ lOON

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// ~--////----~---....................�-----//~"-.: //'--- ////"" --- ~..--_-~.---//~-..........:

w o , -----............ -1 ",,// .---...........----------.---.......................~~ :::) I- o· J .- .... -,\ 4 __~- .....-~~~4:--I-

~ ~ ~,. \ -\1-/...-"" '. _ ... ---..-~ o

\ ..."~'7' Y _,e , • ---__...................... -"".3::-:s::-::O:::--1�

\ , 1./ / ------~----'\ ',! I / ..... ----r---- -----;;&-........-j�

10·5 .... !II//,- _ __/~---........~

/-_ \ .../ ........... / - , /~---/ /�

",,- \ \'''''' ""./......---' , I I~...........-....-- ..... /�/_ \ _ f~ :. \ / ~" _

,/ - \ \ '---- - ."\~" " ....... , .... .....,�"20·5

1300 E 1500 E 170·E 170·W 1500W

CONTOIJR: U_W1ND LONGITUDE


-- 10.0

TIME : 19-JAN- 1988 18:00


~_!!""~/~ .... , I I'" - ~", .......~_/,/_

I"'!"""~~=-;y--~--- --~~---//.---~ r--:~IF-":lIt=-~~ ~~~ /......-;:;__ __ ...........�

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- ....iii __.....................~ -0; 00( -a-- ~~~?--------~/.---~

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, ----........ //---/~ / ~..........~ w o I- o· •.~ - ....-- ,--_-- - ~........... ~ . ~ ... :. :. - , ....... ------ - _.._.._ ~ /' / ...........~_:--,.-._--l

:::) \~.---. -. ---/~................................. V//----/--.o-"!" • • • ' .�

~ '--- - . - -- - --~ .... --a-- ..-.~-;

~............................. t-----------..............--....-......-......-....-~ .. " ......... -w,/("_ .-- -----/-----

10·5 ,--~ .... ~_ ~ -...._............... -..-.~, ....... _- /- - ,,, - ~--....~ ,:. , '_ ....... -"-...-- ° - • , , \ _--",,--~ ..l , _ \ _~ ""_~

~--..._--.............- ". ,; ~",'-~ 20·5

130·E 150·E 170·[ 1700W 1500W CONTOIJR: U_W1NO LONGITUDE


-- 10.0

100�

TIME: 20-JAN-1988 18:00


w o :::J

3t

130'E

CONTOUR: U_WINO

150'E 170'E

LONGITUDE


170'W 150'W

TIME: 21-JAN-1988 18:00


10'N

w o ~

3 0'

10'S

20'S

130'E

CONTOUR: U_WINO

150'E 170'E

LONGITUDE


- 10.0

l700W l50'W

101

TIME: 22-JAN-1988 18:00�

6 hrly 2.5x2.0 degree SSMIjAtlos gridded winds�

10·N

w Cl

~ o· 3

10·5

20·5

130·E 150·E 170·E 170"W 150·W

LONGITUDE


TIME: 23-JAN-1988 18:00�

6 hrly 2.5x2.0 degree SSMIjAtlos gridded winds�

10·N

w Cl

~ o· 3

10·5

20·5

130·E 150·E 170·E 170"W 150"W LONGITUDE


102

TIME : 24-JAN-1988 18:00


10'N

w o ~ O'

~

10'S

20'S

130'E 150'E 170'E 170"W 150'W



-- 10.0

TIME: 25-JAN-1988 18:00


10'N

w o ~ O'

~

10'S

20'S

130·E 150·E 170·E 170"W 150·W

LONGITuDE


- 10.0

103

3

TIME : 26-JAN-1988 18:00


10"N

w o i? O'

10'S

20'S

130"[ 150"[ 170'[ 170"'W 150"'W CONTOUR: U_W1ND LONGITUDE


TIME: 27-JAN-1988 18:00


10"N

w o i? O'

3

10'S

20'S

130"[

CONTOUR: U_WIND

150"[ 170'[

LONGITUDE 170"'W 150"'W


104�

3

TIME : 28-JAN-1988 18:00


lOON

w o ~ o·

10·S

20·S

130·[ 1500 [ 170·[

LONGITUDE


- 10.0

170·W 1500W

TIME : 29-JAN-1988 18:00


lOON

w o ~

3 o·

10·S

20"S

1300 [ 1500

[ 1700 [ 1700W 1500W



- 10.0

105�

TIME : 30-JAN- 1988 18:00


....... c:�

10·N

w o ~ O·

~

10·5

20·5

130·E 150·E 170·E 1700W 150·W CONTOUR: U_WIND LONGITUDE


-- 10.0

TIME: 31 -JAN- 1988 18:00


10·N

w o ~ O·

~

10·5

20'5

130·E 150·E 170·E 170·W 1500W



- 10.0

106�

TIME: 01-FEB-1988 18:00


10·N

w o ~ O·

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 1500W CONTOUR: U_WIND LONGITUDE


TIME: 02-FEB-1988 18:00


10·N

w o :J I

~

10·5

20·5

130·[ 150·[ 170·[ 17O"W 150·W CONTOUR: U_WlND LONGITUDE


- 10.0

107�

TIME : 03- FEB-1988 18:00


/Y.'fr'. ", I , , ..........,"""-----............~/ /11 1 // //.�V/"",---'--- ~~/I/ I/.....-~-:O ~--. +- ~ E'(,E ...-€'E E#~~///~ ~oE __~~--~~///////~---~

10·N //~--.---/.,.---~~~~.--////.---.---~~ /"//---.--//~--~~~~~////~/~ ~" ,/ ---//~~~///~~~----~.---/~

. ~ - ///~~////~/~.---.---.---~.-----..-. w o , It I <~/////.,.........~ ~~~'OF----"-' :::) t- O' \ ~ \ I \ ~ -...----///~~~...---------.3 , //-~--~--~//_-- .,.........~.............�

",- -~.---//--//~~

10·S

20·5

130·[ 150·[ 170·[ 170"W 150'W



TIME: 04-FEB-1988 18:00


10·N

w o :::)

3t

10·S

20'S

130·[ 150·[ 170·[ 170"W 150"W CONTOUR: U_WINO LONGITUDE


108�

TIME: 05-FEB-1988 18:00


-_//........................ ' ~---.r //_--"~-"'-----~--l ......-/ _//~ //..----.............."'"-E EE E�'Ii

~ ///-------/........------//~ ~c;:::-.oF-:;;"'----// /~--------"""""".-r/""--~~,--:-::

10'N ~--///~ .... -..-........--- ////~~~~

-;--///.........~--/// ~~~~~~~

~//~//~~//////~~~~ri~ ~/.? //.........~///////7//~~//~

w o II -,,~/// __............ .r////////..,.- /..,.-~

§ ~ O' - ~~.~~~>-'l. --- //-- / //////////~

~.......""" o~/ ..._ / IV'////////,,::; '\ J \ '/' I~---///////~

'1\ .... I "'- - - ... - ..........~/ //~ • ~{\.l -,--,-----~__ -.r.........� , .II ......... _ ,~ .. ............... ~~~~...__---~10'S

20'S

130'[ 150'[ 170'[ 170'W 150'W

CONTOUR: U_W1ND LONGITUOE


-- 10.0

TIME: 06-FEB-1988 18:00


w o�

§ ~ O'�

100S

20'S

1300 [ 150'[ 170'[ 1700W 1500W



-- 10.0

109�

TIME: 07-FEB-1988 18:00


w o =>I- O·

~

10·S

20·S

130·E 150"E 170"E 1700W 150"W



TIME: 08-FEB-1988 18:00


....-------- ~............~.......... ;y--~/~

~-.--.---a:- ~ ~- //~~/ -~~------~~~~~--//~/~

~~~~~~/~~----~--~////~ 10·N

--~~------///~~---~///~--::.

-~//~~~~-------------~~~~,--~ //////.......-~~----//7Z~/~ , ~--//~//~~~///~~.--~....----/~

o => , . ...-.......... I-------/ //~////.......------- /--/.......-:;�w

-'-.,., / .......- / //---------- / /.....-:� ~ I- 0"

~ -/ - .... / ;.--"""------- // • , I ////_--__////

'("'" 1 1 1--/1////· / /9' I, J t ,..-~/ I ' I 1. /j , I I", -. ... ry".· . //\'i- / - .. , -, J,./'/ · . / /\'--- - • \ I' 1 \'. I \ "iO- - , . . J I • - ~

\ ,\ . +- . , - ",_I ",

20"S

130"E 150"E 1700 E 1700W 1500W



110�

TIME: 09-FEB-1988 18:00


w o ::J t

~

1300 E 1500 E 1700 E 170·W 150·W



TIME: 10-FEB-1988 18:00


w o ::J t

~

130·E 150·E nO·E 1700W 1500W



111

TIME: 11-FEB-1988 18:00�

6 hrly 2.5x2.0 degree SSMIjAtlas gridded winds�

100 N

w a� ~ 0°�

~

10'S

'.

130

20'S� 0

[ 150'[ 170'[ 170'W 150'W� CONTOUR: U_WIND LONGITUDE

Horizontal Wind (Mis) -----..,. 10.0

TIME: 12-FEB-1988 18:00�

6 hrly 2.5x2.0 degree SSMIjAtlas gridded winds�

10'N

10'S

20'S

1300 [ 170'[

LONGITUDE

Horizontal Wind (Mis) -----..,. 10.0

170'W 150'W

112

TIME : 13-FEB-1988 18:00


100 N

w a ::J t- 0°

~

200 S

1300 E 1500 E 1700 E 170"W 150"W



- 10.0

TIME: 14-FEB-1988 18:00


100 N

w a ::J t- 0°

~

200 S

13O"E

CONTOUR: U_WIND

1S00E 1700 E

LONGITUDE


- 10.0

170"W 150"W

113

TIME: 16-FEB-1988 18:00


10'N

w Cl

F! o·

~

10·S

20'S

130'[ 150'[ 1700 [

LONGITUDE


- 10.0

1700W 150·W

\

TIME: 17-FEB-1988 18:00


\ "

130'[ 150'[ 1700[ 1700W 1500W

LONGITUDE


- 10.0

114�

TIME : 18-FEB-1988 18:00


w o ::::>

3t

130"[ 150·[ 170·[

LONGITUDE

Horizontal Wind (Mis) ----->0 10.0

1700W 150·W

TIME: 19-FEB-1988 18:00


lOON

w o ::::> t

3

10'S

20·S

130"[

CONTOUR: U_WINO

150·[ 170·[

LONGITUDE

Horizontal Wind (Mis) ----->0 10.0

1700W 1S0·W

115�

TIME: 20-FEB-1988 18:00


w o ::::>

§/

130·[ 150·[ 170·[

LONGITUDE


170·W 150·W

TIME : 21- FEB-1988 18:00


10·N

w o ::::>/

§ O·

10·S

20·S

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


- 10.0

170·W 150·W

116�

3

TIME: 22-FEB-1988 18:00


10"N

w o ::J f-

10"S

20"S

130"[ 150"[ 170"[ 170"W 150"W



-- 10.0

TIME: 23-FEB-1988 18:00


130"[ 150"[ 170"[ 170"W 150"W

LONGITUDE


-- 10.0

117�

TIME: 24-FEB-1988 18:00


1.30·[ 150·[ 170·[ 170·W 150"W

LONGITUDE


TIME: 25-FEB-1988 18:00�

6 hrly 2.5x2.0 degree SSMI/Atlos gridded winds�

10·N

w a

3 ~ o·

10·S

20·S

1.30·[ 150·[ 170·[ 170·W 150·W

LONGITUDE


118�

TIME: 26-FEB-1988 18:00


~---///~~///~/?7/7. ~//~~~///?~ E E ~~~~~

~~~//~--///~~~//~

~--~//~----- ~--~--~/ ~hElOON ~---~//~~~.---~~ /;("/~ v--------~/~~~~.---~///&:'h ~////////__----...-~~c "'E ~--~/7//~

///////////..,......................€€......;;;pc E EE'" _..._~//// w o ,/ /, ///_/..,.................... ////~-c E E __.........//////�

3t:::J

...-/ / I II/"~----/ / ,~- \ //~---//II-

,~ ~///~//II

~-.;;;; II I II /"'~

10°5

20°5

1300 E

COPITOVR: U_WIND


1700W 1500 W


TIME: 27-FEB-1988 18:00


lOON

w o :::J t- O· •

3�

10°5 -t-o.-_~.

20°5

1300 E 1500 E 1700 E 1700W 1500W

LONGITUDE


119�

3

TIME: 28-FEB-1988 18:00�


10·N

w o ~ O· •

10'S -+-..----.......:�

20'S

130·[ 150·[ 170'[ 170'W 150'W LONGITUDE


TIME: 29-FEB-1988 18:00�


w o ::::> t:

~

130·[ 150·[ 170'[ 170'W 150·W LONGITUDE


120

TIME: 01-MAR-1988 18:00

6 hrly 2.5x2.0 degree SSMIjAllos gridded winds

20·5

130·[ 150·[ 170·[ 170·W 150·W



TIME: 02-MAR-1988 18:00

6 hrly 2.5x2.0 degree SSMIjAllos gridded winds

10·5 -r---...-'

20·5

130·[ 150·E 170·[ 170"W 150·W

LONGITUDE


121

TIME: 03-MAR-1988 18:00


lOON

10·S

20·S

1300 E 150·E 170·E 170"W 150"W CONTOUR: U_W1ND LONGITUDE


TIME: 04-MAR-1988 18:00


w o ::> r

3

130·E 150·E 170·E 170"W 150"W

LONGITUDE


122

TIME : 05-MAR- 1988 18:00


10·N "--"'..-

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W

COKTOUR: U_WIND LONGITUDE


--- 10.0

TIME: 06-MAR-1988 18:00


lO·N

w o ~ 0° •

~

10·5

20·5

130·[ 150·[ 170·[ 170·W 150·W

COKTOUR: U_WIND LONGITUDE


-- 10.0

123

TIME: 07-MAR-1988 18:00


10"N

10"5

20·5

130·E 150"E 170·E 170"W 150"W



-- 10.0

TIME: 08-MAR- 1988 18:00


10·N

10"5

20·5

130·E 150·E 170·E 170"W 150"W CONTOUR: U_WIND LONGITUDE


-- 10.0

124

TIME: 09-MAR-1988 18:00


130·[ 150·[ 170·[

LONGITUDE

Horizontal Wind (MiS) ______ 10.0

170·W 150·W

TIME: 10-MAR-1988 18:00


10·N

w o ~

3 o·

10·5

20·5

130·[

CONTOUR: U_WlNO

150·[ 1700 [

LONGITUDE


----- 10.0

1700W 1500W

125

TIME: I I -MAR-1988 18:00


~__ ~ ol! ~ ............~/....--~/-c- ~~ ~/////¥'::

r---_-.ol'-::;;.:-~~~~oo( 4 ~~~~~///////.,

~~~~~~~~///~/~ Z;--~ ~~~~__~~///~~

10·N :;/~__,,--~~~~~E E>E~~~7////~

~.-------/............ -~~///~~//.

~--~/ / ///~--~---~---~~~~//. 1..--.0~~---::'-_-=~/I///

w ~~~----__//~/ //

o ::::> t

3 o· ...... - - ,.- , '\ \

• - -,\

..,/ ./~""""'"

/

-,

--=>

__

~ /_~__ --,;,; .,.-__ ..- "..,/....--__..,..

,. / /--- - - ~ --..,..-- ---

"I //"-. v~---///'////',;////

- 1//---- .... " .... --- ""-----, - __ . / 1"'/--' \ \ , \_ ~-

, ....... ' , ....._,, '" t:::::J1.\ \ \ • ~ ~

10·5 _. ~~""--

~---

_ ~',_"'!::-- \,,-/' ' \ - . _ \ -/- ... , ..... - , ,- .......... "

t

"

,

---,,-----.... ...... ',. ~

, ,"-,

" ~,'--...." ---..................-+..

,----" "'-

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I

I

20·5

130·[ 150·[ 170·[ 170aw 150aw



TIME: 12-MAR-1988 18:00


_____ a .. _~/~~----///-V-~

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~--~~~~///h 10.N-+--'-~-.z::- __~ ~~~~__~~///~

:;.--///.....------~~--~~~/~

/~/~////....----~---/~--~~---~~//~ ----------......-// ////////////~---~~..,..-17/

o w

--- .... ---- 1 1////////////////////::::> t- o· ,,",-- -- , ' ,. /~~-//////'/--////3 -" ,\ 1/----,..-- ; .,.---.-~/-

\ ",,", ,.-~- ...... -------~ I • "' ..... _ / __ .. ~

" , '\ - ---- - . ~. - - .. -- .. .. . .... 10·5 ... "" .......... -s.:.,- ..--- I . - - - ~ I1

~,,----.... - -- " ...... " 1-- - - - - ,. / I ..4-_........~-, ~""--""---.... _-,\ '/------------

~-:..... -_ ... '\~,-.... ........ _---- ......_.. ~-....

-_-...............,,--........ ,,~-+-,.

........,------ ---"20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE 170aw 150"W


126

TIME : 13-MAR-1988 18:00


~.. .

10·N

w o i=? o·

3

10·5

20·5

130·[ 150·[ 170·[ 1700W 1500W CONTOUR: U_WINO LONGITUDE

Horizontal Wind (Mis) .~ 10.0

TIME: 14-MAR-1988 18:00


.... ~~EE_~;~~

~~-= ~~////~~~~~~///~

10·N ..........---...-.....--~~~~~~////~

/--...---.-.....------//~--~~/~~////;. /--..........//.......... //~.....--//~~~----~~/ij~ //-'///~----///~~~""""""----////~

w o ,I ",- -." /7- I/_~/~__///"'_//::> I . ....... ... / I~-/~------'----"""-/'----3 // 'E" ~----_/,

. I ~ ,""' ••••• E -c .-..._

\ ,......""" _-- ---~..- ---_.........

,-\-, _---~~---~,,--10·S ~ ......... ~ ----_ ~-~--~_..........

~" . --- ------------~, ........... ~,,'-....~'-....---- - , __ '4 ~~,

~'_'_...." A ,~ .,:. '--~ ~~,' \ ---- ....... --...-_: e E -~~

20·5

130'[ 150·[ 1700 [ 1700W 1500W



127

TIME: 1S-MAR-1988 18:00

6 hrly 2.Sx2.0 degree SSMI/Atlas gridded winds

~~:!"---*'-::~~- ~........... ~~~~ ..-..... E __.~~:::~»~ :0--. 4r~__'---~~_~//~~~~

10·N ~ ~/~.--~~~~~~~:-r~.e:--~

------.--.-------/~---~~~~/~/~.---~~~~

................-------- //.-----------/-----~~~//.--~

w ;" ,,- / ---~~/-----.------~~/--------~

o . ';' //--- '" y ........--- -----.---///-----~::> I- o· ,' .__........ .---------.-~E:---....O-+-3 , . '., ~ /---- ..... , _~------/..,...........--/~

. 7/---' -~~~--4 y/-........ ,--- __...-- ~---~--~ 1- __ ........ ,_ ;" "" ...... ::-...... ,-__ • ....... ..< ~-

10·5 ~,~ ~''''''''''--~'' ~ ~--"~''''''''''~---'''''''''''''''"'-----''''''~.-----~_ ..

~~, , _....._1..~--~ Eo

~" " _~ ......". .. :E :!"-- ___. ~ l'Ii """_

~ '\'------ --t-.__~..........--~~ 20·5



TIME: 1&-MAR-1988 18:00

6 hrly 2.Sx2.0 degree SSMI/Atlas gridded winds

10·N

w o ::> I- o· 3

10·5

20·5



128

TIME : 17- MAR- 1988 18:00


lOON

w o ::;) I

~ O'

10'S

20'S

1300 E

CONTOUR: U_W1NO

1500 E 170'E

LONGITUDE


170'W 150'W

TIME : 18-MAR- 1988 18:00


lOON

w o ::;) I

~ O'

10'S

20'S

1300 E 1500 E 170'E 1700W 1500W



129

TIME: 19-MAR-1988 18:00


...... ~~"Ci <E .. <E E<E o#;~~/~~~~~~

~~.. E'~ E <Oll!! ....~~~~~~~

~---~--~~~~~ ----~~/~~~~~~

lOON -;,...-----~~.-----~~~~~

~~~/------~~~~~~ /~/~///__--~'ie=~~//~~~~~

,. / /~////~ .. - EE <E'~///~~/~ w o ~

. //- / I. / --~-----~~~////~..........-. I- 0° '~- . -~, ,~--- //...........///.................................3 . -0' :- G '\ ~ ~__~---

\ I '0' \~ E 'iii' E' ;...-- __~ e E .. 4 ... ....-.

...... '\\'... E "'-a--_~ 'E ~---_OIl l

.... - \ ~~-......-..-~--- 10°5 ~~~ "-~ ,...........~--------~ -.....:

:!:--:: ....~~ ~......... ~--------......_ _~----~"'-"""""""""""""""-':"E="i:,.;i Co ~ ............... E~---...... ' ~'~-"""'~'E:: s 'E ~'" ~" ........... <0("Ci ~,""--,~"--..-..+'

20°5

1300 E 1500 E 1700 E 1700 W 1500 W



TIME: 20-MAR-1988 18:00


100 N

w o ~ I- 0°

3

100 S

20°5

1300 E CONTOUR: U_WIND


170"W 150"W


130

TIME: 21-MAR-1988 18:00


lOON

w Cl ::::> t-- O·

~

10°5

20·5

130·E 1500 E 1700 E 1700 W 1500W

CONTOUR: V_WIND LONGITUDE


TIME: 22-MAR-1988 18:00


lOON

w Cl

~ O·

~

10°5

20·5

1300 E 1500 E 1700 E 1700W 1500W



131

TIME: 23-MAR-1988 18:00


130·[ 150·[ 170·[ 170·W 150·W



TIME: 24-MAR-1988 18:00


130·[

CONTOUR: U_WIND

150·[ 170·[

LONGiTUDE


1700W 150·W

132

__

TIME: 25-MAR-1988 18:00


~ 4( 4!! ~~/ ~---.......................-//.............----///// /?~E--:;-_----<

~~-- //~--//..........///r* r--~E-1I!=~~~~~///~"""",,/////~~

~///~~/////~/~ lOON -~~~///~~~///~~////~ .----.......'" . -- ~,.,-~~/----............./~~~////~

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Horizontal Wind (MiS) --....,. 10.0

TIME : 28- MAR-1988 18:00


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134

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TIME: 29-MAR-1988 18:00


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TIME : 30-MAR-1988 18:00


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135

TIME: 31-MAR-1988 18:00


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TIME: 01-APR-1988 18:00


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136

TIME: 02-APR-1988 18:00


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- 10.0

TIME: 03-APR-1988 18:00


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137

TIME : 04-APR-1988 18:00


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130'[ 150'[ 170'[ 170"W 150'W



TIME: 05-APR-1988 18:00


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150'[ 170'[

LONGITUDE 170'W 150'W


138

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TIME: 06-APR-1988 18:00


10"N

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130"[ 150"[ 170"[ 170"W 150"W LONGITUDE


- 10.0

TIME: 07-APR-1988 18:00


10"N

w o ::::> I

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10·5

20·5

130"[ 150"[ 170"[ 170"W 100"W CONTOUR: U_W1ND LONGITUDE


- 10.0

139

TIME: 08-APR-1988 18:00


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TIME: 09-APR-1988 18:00


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140

TIME : 10-APR-1988 18:00


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TIME : 11-APR-1988 18:00


100 N

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141

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TIME: 12-APR-1988 18:00


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TIME : 13-APR-1988 18:00


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142

TIME : 14-APR-1988 18:00


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TIME: 15-APR-1988 18:00


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130·E 150·E 170·E 170-W 150-W CONTOUR: U_WIND LONGITUDE


143

TIME : 16-APR-1988 18:00


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TIME : 17-APR-1988 18:00


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144

TIME : 18-APR-1988 18:00


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-- 10.0

TIME: 19-APR-1988 18:00


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145

TIME : 20-APR-1988 18:00


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-- 10.0

TIME : 21-APR-1988 18:00


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CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


150"W

146

TIME: 22-APR-1988 18:00


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TIME: 23-APR-1988 18:00


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147

TIME : 24-APR-1988 18:00


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TIME : 25-APR-1988 18:00


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148

TIME : 26-APR-1988 18:00


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TIME: 27-APR-1988 18:00


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149

TIME : 28-APR-1988 18:00


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TIME: 29-APR-1988 18:00


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TIME: 30-APR-1988 18:00

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- 10.0

TIME: 01-MAY-1988 18:00


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151

TIME: 02-MAY-1988 18:00 6 hrly 2.5x2.0 degree SSMIjAtlas gridded winds

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- 10.0

TIME: 03-MAY-1988 18:00


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152

TIME: 04-MAY-1988 18:00


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TIME: 05-MAY-1988 18:00


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153

TIME: 10-MAY-1988 18:00


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TIME: 12-MAY-1988 18:00


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130·[ 150'[ 170'[ 170·W 150·W



TIME : 13-MAY-1988 18:00


20·N 1;;;r;;'/'/7~=-----'-----'--~~F-:;~~~~:::;::::::ir;::::::zp.=-"""'~::-:F~~T

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10'5

~~r~~~~a 20·5

130'[

CONTOUR: U_WIND

150'[ 1700 [

LONGITUDE 170'W 150"W


155

TIME: 14-MAY-1988 18:00

6 hrly 2.5x2.0 degree SSMtjAtias gridded winds

1JO·[ 150·[ 170·[ 170·W 150·W



TIME: 15-MAY-1988 18:00

6 hrly 2.5x2.0 degree SSMtjAtias gridded winds

10·N

w Cl

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...........-- .....- _-..e=:E- ~

'//~~~ , .--"'/~~

- ~ 20·5

1JO·[ 150·[ 170·[ 170·W 150·W

CONTOuR: U_WIND LONGITUDE


156

TIME: 16-MAY-1988 18:00


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20·S

130·[ 150·[ 170·[ 170·W 1500W



TIME: 18-MAY-1988 18:00


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20·S

130·[ 150·[ 170·[ 1700W 150·W



157

TIME: 19-MAY-1988 18:00


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20°5

130"[ 150"[ 1700 [ 170"W 150"W



-- 10.0

TIME: 20-MAY-1988 18:00


130"[ 150"[ 1700 [ 170"W 1500 W



- 10.0

158

TIME: 21-MAY-1988 18:00


10"N

w o ::J

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10·5

20·5

130·E 150"E 170·E 170·W 150·W CONTOUR: U_WIND LONGITUDE


TIME : 22-MAY-1988 18:00


w o ::J

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130"E 150·E 170·E 170"W 150·W



159

TIME: 23-MAY-1988 18:00


10·N

w Cl ::::> t

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10·5

20·5

130·[ CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


170·W 150aw

TIME: 24-MAY-1988 18:00


10·N

w Cl

~

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10'5

20'5

130'[

CONTOUR: U_WIND

150'[ 170'[

LONGITUDE


170'W 150aw

160

TIME: 25-MAY- 1988 18:00


20·N +----",-~--...L.-----l---""""!"~_;;iI!!"'.,p........."""':Oi:::::;::::::;:~~~~~7T ttl I \ "~~-t--5-:~~~~:::..oe==.e:"

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10·N \ " - .-.. ......-....---w o ~ O·

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10·5

20·5

130·[

CONTOUR: U_WINO

150·[ 170·[

LONGITUDE


TIME: 26-MAY-1988 18:00


10·N

w 0 :::J I

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10·5

20·5

130·[ 150·[ 170·E


Horizontal Wind (MiS) ------;. , 0.0

161�

TIME: 27-MAY-1988 18:00


10·N

w _ -.. , o

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10·5

20·5

130·[ 150·[

CONTOUR: U_WIND


TIME: 28-MAY-1988 18:00


10·N

w o :::l I

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10·5

20·5

130·[

CONTOUR: U_WIND

1500 [ 170·[

LONGITUDE 150"W


162�

TIME: 29-MAY-1988 18:00 . . 6 hrly 2.5x2.0 degree SSMI/Atlos gndded winds

lOON

w a

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10°5

20·5

130·[ 1500 [ 1700

[

COKTOUR: U_W1ND LONGITUDE


- 10.0

TIME: 30-MAY-1988 18:00 .


lOON

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10°5

1500 [ 170"[ 150·W

LONGITUDE


-- 10.0

163�

TIME: 31-MAY-1988 18:00


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130·[ 150·[ 170·[ 150·W CONTOUR: U_W1NO LONGITUDE


TIME: 01-JUN-1988 18:00


10·N

w o :::> I

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10·5

20·5

130"[ 150·[ 170·[ 150·W CONTOUR: U__O LONGITUDE


164

__ __

TIME: 02-JUN-1988 18:00


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TIME: 03-JUN-1988 18:00�


10·N

10·5

20·5

130'E 150·E 170·[ 170·W 1500W

CONTOVR: u_W1ND LONGITUDE


165�

TIME: 04-JUN- 1988 18:00


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TIME: 05-JUN-1988 18:00�


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1JooE 150'E 1700 E 170"W 150"W



166�

TIME: 06-JUN-1988 18:00


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10·5

20·5

130·[ 150"[ 170·[ 170·W 150"W CONTOUR: U_WIND LONGITUDE


TIME: 07-JUN-1988 18:00


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130·[

CONTOUR: U_WIND

150·[ 170·[



167�

TIME : 08-JUN-1988 18:00


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20'S

130'[ 150·[ 170'[ 170·W 150·W CONTOUR: U_WIND LONGITUOE


TIME : 09-JUN-1988 18:00


100 N

w o ::::> I

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10'S

20'S

130·[

CONTOUR: U_WIND

1500 [ 170'[

LONGITUOE 1700W 1500W


168�

TIME: 10-JUN-1988 18:00


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10·S

20·5 130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


170"W 150"W

TIME : 11-JUN-1988 18:00


w o ::J I

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20·5 130·[

CONTOUR: U_WIND

150·[ 170·[


Horizontal Wind (Mis) ---;. 10.0

169�

TIME : 12-JUN-1988 18:00

6 hrly 2.5x2.0 degree SSMJ/Atlos gridded winds

,--~ _ ..... "'--~~~-e:-~'-'~~~"1

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10·5

20·5

130·[ 150·[ 170·[ 1700W 1500W



TIME : 13-JUN-1988 18:00

6 hrly 2.5x2.0 degree SSMJ/Atlos gridded winds

w o :::l I

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130·[ 150·[ 170·[ 1700W l500W

LONGITUDE


170

TIME 14-JUN- 1988 18:00


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20'S

130'[ 150'[ 170'[ 170'W 150'W CONTOUR: U_WIND LONGITUDE

Horizontal Wind (MIS) ____ 10.0

TIME : 15-JUN- 1988 18:00


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20'S

130'[ 150'[ 170'[ 170"W 150"W



---- 10.0

171�

TIME: 16-JUN-1988 18:00


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200 S

1300 E 1500 E 1700 E 1700W 1500W



- 10.0

TIME: 17-JUN-1988 18:00


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200 S

1300 E 1500 E 1700 E 1700 W 1500 W CONTOUR: U_WIND LONGITUDE


- 10.0

172�

TIME: 18-JUN-1988 18:00


10·N

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10·5

20·5

130·[ 150·[ 170·[ 170·W

CONTOUR: u_WINO LONGITUDE


TIME : 19-JUN-1988 18:00


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20·5

130·[ 150·[ 170·[ 1700W 1500W



173�

TIME : 20-JUN-1988 18:00


10·N

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10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


170"W 150·W

TIME : 21-JUN-1988 18:00


10·N

w o ::::J f--

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10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


- 10.0

170"W 150·W

174

TIME: 22-JUN-1988 18:00


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130'[ 150"[ 170"[�

CONTOUR: U_WIND LONGITUOE


TIME: 23-JUN-1988 18:00


10"N

10·S

20·5

130·[ 150·[ 170·[ 1500W



175�

TIME: 24-JUN-1988 18:00


I 10·N

w o ~

~ O·

10·5

20·5

130·[

CONTOUR: U_WIND

150·[ 170·[

LONGITUDE


150·W

TIME: 25-JUN-1988 18:00


10·N

w o E ~

O·

10·5

20·5

130·[ 150·[ 170·[

LONGITUDE


150·W

176

TIME : 26-JUN-1988 18:00


100 N

w o ::J

§ I

10'S

20'S

1300 [ 1500

[ 1700[ 150'W



TIME: 27-JUN-1988 18:00


'\. """"~_.. e,"",.""" 4"' ..... ~~~ '\ \ , , "- ........ , .........'----~...---.. ... .. .. "' .. -z;--..-~~ ,,'\. -- ----,-'--- E 4?~ E ~ ~.......-:;:

,---- ........_- ~-------~ 100 N ,\" - --" ................ ~~ ...........~--........�

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........ _--,\\,,-""----------~~ ..� ____ , \ ,,_,",........ __ ........,'--__~4E: ..�

w -_ " ........ " ,'--__......... " " '\,'-- 1--4�o

.._c_ -_-------I- O· " ,,-,,---- , '\ \'- -a-r .. ~ .... c ... «

§ --= ""~-, .........--- ,' ,--....--.--.-_---~-_.--.,-<--::J

,--,------,~........ _~.........../--�.J-I-..........--------~~~-.......--_,/ / //_� ,--,--~~-----~-----///

10'S -":...._~~~-.....-.....----- - - - -- ~ - :----.....~_-.....,'----------~~ .. - ~,',-----'//- -~

, ~------,"-... ~ ~l ,~~-........ ,,\,,~~~~~ ...... \/~

20'S

1300[ 1500

[ 1700[ 1500W

LONGITUDE


177�

TIME: 28-JUN-1988 18:00


lOON

w o ::J I

~

10°5

20°5

1JooE 1500 E 1700 E 170"'W 1500 W


Horizontal Wind (Mis) _ 10.0

TIME: 29-JUN-1988 18:00


lOON

w o ::J I

~

10°5

20°5

1JooE 1500 E 1700 E 170"'W 150"'W



- 10.0

178

TIME: 30-JUN- 1988 18:00


10·N

w o :) .....

~ O·

10·S

20·S

130·[

CONTOUR: U_WINO

150·[ 170·[

LONGITUDE

Horizontal Wind (MiS) ----+ 10.0

170·W 150·W

179�

western and central tropical pacific surface …western and central tropical pacific surface...

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