slide 1 1 ucla support for themis august 06, 2007 status reports of themis epo & gbo...
TRANSCRIPT
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Slide 1
UCLA support for THEMIS
August 06, 2007
Status Reports of THEMIS EPO & GBO Magnetometers
Chris. T. Russell, Yasong Ge, Peter Chi, Mark Moldwin and
Tung-shin Hsu
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Slide 2
EPO Milestones• Goal - Install 10 sites between spring 04 and fall 05
LOCATION INST. DATE DATA STATUS
Carson City, NV (CCNV) 8/27/04 07/30/2007
Petersburg, AK (PTRS) 10/06/04 07/30/2007
Hot Springs, MT (HOTS) 10/12/04 07/30/2007
Pine Ridge, SD (PINE) 10/14/04 07/30/2007
Ukiah, OR (UKIA) 11/10/04 07/30/2007
Fort Yates, ND (FYTS) 10/10/05 07/30/2007
Remus, MI (RMUS) 10/12/05 07/30/2007
Shawano, WI (SWNO) 10/17/05 05/26/2007
Derby, VT (DRBY) 10/25/05 06/22/2007
Loysburg, PA (LOYS) 10/28/05 06/13/2007
*Bay Mills, MI (BMLS) 10/14/05 07/24/2007*11th Site not included in original EPO proposal.
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Slide 3
GBO Data Status (UCLA)
LOCATION DATA STATUS
Chibougamau (CHBG) 07/16/2007
Flin Flon (TPAS) 07/30/2007
Goose Bay (GBAY) 07/30/2007
Inuvik (INUV) 07/21/2007
Kapuskasing (KAPU) 07/30/2007
Kiana (KIAN) 07/30/2007
Lac de Gras (EKAT) 12/07/2007
McGrath (MCGR) 07/30/2007
Prince George (PGEO) 07/30/2007
White Horse (WHIT) 07/30/2007
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Slide 4
Sample THEMIS Magnetograms
Sub auroral LatitudesHigh Latitudes
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Slide 5
Sample THEMIS Magnetograms-- Derby
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Slide 6
Website Service
http://www-ssc.igpp.ucla.edu/uclamag/themis_center
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Slide 7
Mid-continent Magnetoseismic Chain (McMAC)Mid-continent Magnetoseismic Chain (McMAC)
● Field line resonance method requires close separation between ground stations in the north-south direction.
● The mean north-south separation between two adjacent McMAC stations is 275 Km.
● Joint operation with CANOPUS Churchill Line (Canada), IGPP-LANL (U.S.) and MAGDAS (Japan) provides the magnetic field data from L = 1.3 to 11+ at one local time (note: the widest stretch of magnetic latitude on the earth).
• Pi: Peter Chi [email protected]
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Slide 8
McMAC Sites
Lyford, TX (Lyford High School)
Linares, Mexico (Universidad Autónoma de Nuevo León)
Glyndon, MN (Minnesota State U. Moorehead)
Bennington, NE (U. of Nebraska, Omaha)
Richardson, TX (U. of Texas, Dallas) San Antonio, TX (SwRI)
Worthington, MN (Minnesota West College)
Americus, KS (Emporia State U.)
Purcell, OK (U. of Oklahoma)
(All nine stations installed)
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Slide 9
ULF Activity Observed by McMAC, CARISMA, IGPP-LANL Combined
0 3 6 9 12 15 18 21 24-700
-600
-500
-400
-300
-200
-100
0
CARISMA-FCHU (L = 7.68)
CARISMA-GILL (L = 6.32)
CARISMA-ISLL (L = 5.27)
CARISMA-PINA (L = 4.13)
MCMAC-GLYN (L = 3.42)
IGPPLANL-CAM (L = 3.25)
MCMAC-WRTH (L = 2.87)
MCMAC-BENN (L = 2.58)
MCMAC-AMER (L = 2.29)
MCMAC-PCEL (L = 2.00)
MCMAC-RICH (L = 1.87)
MCMAC-SATX (L = 1.66)
MCMAC-LYFD (L = 1.53)
UT [hours]
BH
[nT
] (A
dju
ste
d B
ase
line
s)
Magnetogram 2006-06-19
18:00 :15 :30 :45 19:00 :15 :30 :45 20:00
-80
-60
-40
-20
0
20
CARISMA-FCHU (L = 7.68)
CARISMA-GILL (L = 6.32)
CARISMA-ISLL (L = 5.27)
CARISMA-PINA (L = 4.13)
MCMAC-GLYN (L = 3.42)
IGPPLANL-CAM (L = 3.25)
MCMAC-WRTH (L = 2.87)
MCMAC-BENN (L = 2.58)
MCMAC-AMER (L = 2.29)
MCMAC-PCEL (L = 2.00)
MCMAC-RICH (L = 1.87)
MCMAC-SATX (L = 1.66)
MCMAC-LYFD (L = 1.53)
UT [hours]
BH
[nT
] (A
dju
ste
d B
ase
line
s)
Magnetogram 2006-06-19
1-day 2-hourLT = UT – 6.37 (hr)
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Slide 10
An Example of McMAC Measurements:FLR Frequency & Equatorial Density
12 15 18 21 24
40
45
50
55
60
65
70
UT [hours] (= LT+6.37)
CG
M L
atit
ud
e [d
eg
]
FLR Frequency (n = 1) [mHz]
10
20
30
40
50
60
70
12 15 18 21 24
2
3
4
5
6
7
8
UT [hours] (= LT+6.37)
L
log10
(Equatorial Density) [a.m.u./cm-3]
0.5
1
1.5
2
2.5
3
3.5
1622-1704 UT 2006-6-15 • Model-predicted plasmapause L (or Lpp) well agrees with FLR-inferred results.
• The low Lpp can be explained by the Kp value of 5+ earlier in the day
2006-6-15
40 50 60 700
0.01
0.02
0.03
0.04
0.05
0.06
CGM Latitude [deg]
FL
R F
req
ue
ncy
[mH
z]
2 4 6 810
0
101
102
103
104
L
log 1
0(neq)
[a.m
.u./c
m-3]
Lpp(model)
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Slide 11
McMAC Data Availability
(as of 5/16/07)
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Slide 12
McMAC Data DisseminationMcMAC Web Site: (http://spc.igpp.ucla.edu/mcmac/)• Project information• McMAC data files• Density estimation (in preparation)
NASA VMO (UCLA Hub –PI: Ray Walker)• To provide access to all McMAC data• Important in retrieving other space physics data for the same time intervals
Contact Peter Chi ([email protected]) for details.
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Slide 13
IGPP-LANLand
SMALL Data
http://spc.igpp.ucla.edu/uclamag/data_center/
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Slide 14
• MEASURE (Magnetometers Along the Eastern Atlantic Seaboard for Undergraduate Research and Education ) magnetometer chain is distributed along the east cost of North American Continent.
• Data is available through : http://measure.igpp.ucla.edu
• PI is Mark Moldwin: [email protected]
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Slide 15
INTERMAGNET•The International Real-time Magnetic Observatory Network (INTERMAGNET) is distributed throughout:
• African/Indian Ocean
•Asia/Japan
•Europe
•Pacific Ocean/Australia/Antarctica
•South/North America
• Data is available in formats of ASCII and Binary files.
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Slide 16
Central Meridian of Substorm Current Wedgeis around Honolulu (Hon)
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Slide 17
Intermagnet Mid-latitude Stations Aug-29-2001