airborne/ground-based sensor intercomparison: srl/lase paolo di girolamo, domenico sabatino, david...

Airborne/ground-based sensor intercomparison: SRL/LASE

Paolo Di Girolamo, Domenico Sabatino,

David Whiteman, Belay Demoz,

Edward Browell, Richard Ferrare

IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO

• SRL operated for approximately 35 days during IHOP

• Most of the measurements were carried out in vertically pointing mode

• Present availability of analyzed data: 11 days

29 May 2002, 30 May 2002, 31 May 2002, 3June 2002, 4June 2002, 9June 2002, 10June 2002, 12June 2002, 14June 2002, 19June 2002, 20 June 2002

both daytime and night-time cases.

Water vapor data have been processed using a single, height independent calibration constant determined from 20 nighttime datasets of SRL water vapor and SuomiNet GPS measurements of total precipitable water both taken at Greenbelt, MD in the September November, 2002 period for Aqua validation purposes.


NASA Scanning Raman Lidar, SRL

Time resolution: 1 minute intervals

Vertical resolution:

0-1 km : 60m, 1-2 km : 100m, 2-3 km : 150m, 3-4 km : 200m, >4 km : 300m

Vertical extent (for the present data release): 0-6 km.


• Statistical error associated with the Raman lidar signals )(

2zP

N and )(2zP

OH

Measurement uncertainty

• Systematic error associated with the determination of the calibration constant K(z).

•Random error is a function time of day, altitude and amount of water vapour.

During IHOP:

• day <10% in BL• night <2% in BL, <10% to 6km

Water vapor data have been processed using a single, height independent calibration constant determined from 20 nighttime datasets of SRL water vapor and SuomiNet GPS measurements of total precipitable water both taken at Greenbelt, MD in the September November, 2002 period for Aqua validation purposes.

• Vertical data interval: 30 m• Horizontal interval: 6 sec or 1.4 km

• Vertical resolution: 330 m• Horizontal resolution: 1 min or 14 km

• LASE measurement accuracy: better than 6 % or 0.01 g/kg, across the troposphere

• Water vapor mixing ratio: calculated using molecular density profiles derived from the Homestead radiosondes.

NASA LASE

Comparison between SRL and LASE

Comparison between SRL and LASE data are possible on 30 May, 3 June, 9 June and 14 June.

24 comparisons available

Date: May 30, 2002time[UTC] distance[km]

18:28:03 4.918:28:05 4.719:44:40 0.420:34:59 1.721:49:10 0.4

--------------------------Date: June 03, 2002

time[UTC] distance[km]19:29:44 0.720:30:09 0.121:32:17 0.3

--------------------------Date: June 09, 2002

time[UTC] distance[km]18:06:50 0.319:17:00 0.220:31:03 0.2

--------------------------Date: June 14, 2002

time[UTC] distance[km]14:03:23 0.914:03:27 1.114:44:21 0.615:14:04 0.715:14:06 0.715:56:46 0.516:27:12 0.916:27:14 0.917:10:34 2.617:10:36 2.817:38:42 0.918:19:36 0.418:49:11 0.9

Comparisons are based on 10 minute data averaging for SRL and 1 minute data averaging for LASE. Based on 10 minute data averaging, 10 % random uncertainty for SRL is reached between 2.8-4.3 km.

In order to compute deviations, SRL data have been interpolated at LASE heights.


Agreement is very good when distance between LASE footprint and SRL does not exceed 2.5 km.

• Average RMS deviation: 2.2 % in the height interval 1.3-3.8 km

• Average BIAS: 0.3 % in the height interval 1.3-3.8 km


0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-150 0 150

(a)

Hei

ght (

m)

Water Vapour mixing ratio (g/kg)

LASE (14:03:23 UT) SRL (13:59 - 14:08 UT)

LASE-SRL intercomparison, 14 June 2002

Deviation (%)

(b)

Distance between LASE footprint and SRL = 0.9 km

statistical error gets lower than 10 % around 5 km

Sun zenith angle=30-40 deg

Background signal is 50 % smaller than Sun at zenith

When distances are larger than 2.5 km, differences in air masses properties are appreciable deviations between LASE and SRL

are larger.

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (18:28:03 UT) SRL (18:23 - 18:32 UT)

LASE-SRL intercomparison, 30 May 2002

Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (18:28:05 UT) SRL (18:23 - 18:32 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (19:44:40 UT) SRL (19:40 - 19:49 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (20:34:59 UT) SRL (20:31 - 20:40 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (21:49:10 UT) SRL (21:44 - 21:55 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (19:29:40 UT) SRL (19:25 - 19:34 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (19:29:46 UT) SRL (19:25 - 19:34 UT)


Deviation (%)

(b)

0 2 4 6 8 10 12

0

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (20:30:09 UT) SRL (20:26 - 20:35 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (21:32:15 UT) SRL (21:28 - 21:37 UT)


Deviation (%)

(b)

0 2 4 6 8 10 12 140

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (18:06:50 UT) SRL (18:02 - 18:11 UT)


Deviation (%)

(b)

0 2 4 6 8 10 12 140

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (19:17:00 UT) SRL (19:13 - 19:22 UT)


Deviation (%)

(b)

0 2 4 6 8 10 12 140

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (20:31:03 UT) SRL (20:26 - 20:35 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-150 0 150

(a)

Hei

ght (

m)


LASE (14:03:23 UT) SRL (13:59 - 14:08 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (14:03:27 UT) SRL (13:59 - 14:08 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (14:44:21 UT) SRL (14:40 - 14:49 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (15:14:04 UT) SRL (15:10 - 15:19 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (15:14:06 UT) SRL (15:10 - 15:19 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (15:56:46 UT) SRL (15:52 - 16:01 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (16:27:13 UT) SRL (16:23 - 16:33 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (17:10:31 UT) SRL (17:06 - 17:15 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (17:10:37 UT) SRL (17:06 - 17:15 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (17:38:42 UT) SRL (17:34 - 17:45 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (18:19:36 UT) SRL (18:15 - 18:24 UT)


Deviation (%)

(b)

0 2 4 6 8 10 120

1000

2000

3000

4000

5000

6000

7000

-50 0 50

(a)

Hei

ght (

m)


LASE (18:49:11 UT) SRL (18:44 - 18:53 UT)


Deviation (%)

(b)

RMS deviations and BIAS

Total RMS deviations and BIAS in the altitude region 1.3-2.8 km and 1.3-3.8 km, together with contributions from different height intervals:1.3-1.8 km, 1.8-2.3 km, 2.3-2.8 km, 2.8-3.3 km,3.3-3.8 km

Error exceeding 100 % have been excluded from the average

2ii

iLASESRL

n

N

nSRLRMSsrl

N

i

ii

1

2

N

nSRLBIASsrl

N

i

ii

1

RMS deviations and BIAS between SRL and mean value


expected to be the best estimate of truth

(g/kg)

(g/kg)

N

n

N

nSRL

srlRMS N

i

i

N

i

ii

1

1

2

%

N

i

i

N

i

ii

n

nSRLsrlBIAS

1

1%

N

nLASERMSlase

N

i

ii

1

2

N

nLASEBIASlase

N

i

ii

1

2ii

iLASESRL

n

N

n

N

nLASE

laseRMS N

i

i

N

i

ii

1

1

2

%

RMS deviations and BIAS between LASE and mean value


expected to be the best estimate of truth

(g/kg)

(g/kg)

N

i

i

N

i

ii

n

nLASElaseBIAS

1

1%

N

LASESRLlaseRMSsrl

N

iii

1

2

N

LASESRLlaseBIASsrl

N

iii

1

RMS deviations and BIAS between the sensors


N

n

N

LASESRL

lasesrlRMS N

i

i

N

iii

1

1

2

_%

N

i

i

N

iii

n

LASESRLlasesrlBIAS

1

1_%

Date Time 1.3-3.8 km 1.3-3.3 km 1.3-2.8 km 1.3-1.8 km 1.8-2.3 km 2.3-2.8 km 2.8-3.3 km 3.3-3.8 km

30 May 18.28.03 131.14721 6.8976462 6.5933831 9.2253404 6.6103889 2.5311844 7.9123896 285.95783

30 May 18.28.05 125.36083 6.5204665 6.6998718 9.3135738 6.766199 2.6245025 6.1810038 273.34758

30 May 19.44.40 9.2070941 2.5084639 1.6601219 1.284231 2.0532945 1.4741614 4.008673 19.499176

30 May 20.34.59 14.466489 15.425359 2.5700604 1.3620604 2.9831546 2.8851492 29.622947 10.068457

30 May 21.49.10 12.932843 9.0618902 1.5779214 0.6722874 1.3996771 3.1626924 17.758565 22.085914

03 June 19.29.40 12.272417 6.4744455 4.9343026 1.0624689 1.213643 8.6474167 9.2557887 23.660353

03 June 19.29.46 11.408202 4.6186115 3.6356117 1.3916336 0.5450793 6.3410411 6.3713571 23.233714

03 June 20.30.09 5.7134043 5.6330356 4.9528208 1.2897809 3.1835608 8.1626276 6.6262731 6.0063318

03 June 21.32.15 9.0773559 5.6223148 3.0150486 1.6974151 4.137044 2.3894887 9.9834508 16.540863

09 June 18.06.50 3.3202398 3.0769337 3.0448382 1.0268948 4.4841186 2.8647366 3.2609577 4.1089719

09 June 19.17.03 11.550867 4.5376396 3.2419444 2.5337833 1.8401959 4.6720624 7.1125021 23.626323

09 June 20.31.03 18.026891 19.756039 11.72614 5.7752947 6.7432033 19.430611 33.03161 8.8888603

14 June 14.03.23 2.2446707 2.2839063 2.5245648 1.6863948 3.1883451 2.2837406 1.4262353 2.0903656

14 June 14.03.27 2.5963864 2.6340503 2.963527 2.1894848 3.7251113 2.5633096 1.3540024 2.4494038

14 June 14.44.21 3.8295522 3.6565605 4.142287 5.5421448 4.5225807 1.2998726 1.7545436 4.4205088

14 June 15.14.04 3.6242731 2.5999239 2.9108346 4.5643037 1.9234811 1.6754469 1.3769803 6.0941104

14 June 15.14.06 3.6242731 2.5999239 2.9108346 4.5643037 1.9234811 1.6754469 1.3769803 6.0941104

14 June 15.56.46 4.2228754 4.2324806 4.8375732 7.594288 3.562652 2.2421814 1.53758 4.1865168

14 June 16.27.13 3.3042689 3.2958334 3.7907855 3.5262732 4.6715805 2.8151522 0.9806885 3.3358348

14 June 17.10.31 5.0105452 4.8675011 5.6094214 7.6900484 5.5484993 2.7811294 1.4482646 5.5158934

14 June 17.10.37 5.1810892 5.2334218 6.0557524 8.6895956 6.0584995 1.6787944 1.2208093 4.9791414

14 June 17.38.42 3.6141547 3.7640941 3.9224448 2.8448656 5.8004843 1.5031644 3.3827242 2.9828271

14 June 18.19.36 3.9725229 3.4628076 3.6663803 4.0941108 3.8150212 2.9759394 2.9023881 5.4816787

14 June 18.49.11 3.2873058 3.203978 3.5911343 1.354158 4.0672637 4.1973649 1.7781554 3.583675

Average 17.04149 5.4986386 4.1907335 3.790614 3.78194 3.869884 6.7360362 32.009935

N

n

N

nSRL

srlRMS N

i

i

N

i

ii

1

1

2

%


30 May 18.28.03 29.723362 -1.995153 -2.4861114 -6.763914 -1.013169 -0.303075 -0.663677 149.1342

30 May 18.28.05 27.02023 -2.00738 -2.4639209 -7.081429 -2.035627 1.0653519 -0.802353 136.3006

30 May 19.44.40 -2.397479 0.117175 -0.7764228 0.5473355 -1.701719 -0.951584 2.5877101 -11.8644

30 May 20.34.59 -5.636024 -8.590474 -1.7077519 0.5255926 -2.886317 -2.409703 -27.61918 5.486611

30 May 21.49.10 -7.421792 -4.322209 -0.0424986 0.278769 0.2000829 -1.113372 -16.56239 -19.0908

03 June 19.29.40 -0.804739 4.0494482 2.8536294 -0.69938 1.1453158 8.0819428 7.0057877 -19.0793

03 June 19.29.46 -2.067778 2.3514307 1.7686522 -0.940731 0.380825 5.8554761 3.6027922 -18.7048

03 June 20.30.09 -1.44824 -1.410048 0.0327484 1.236461 2.8523947 -4.559033 -4.908792 -1.59202

03 June 21.32.15 4.8814586 1.8056824 1.074801 1.6037323 3.7122431 -2.123266 4.1311754 16.46085

09 June 18.06.50 2.7287573 2.4754253 2.5454147 0.7898908 3.960232 2.4384969 2.4118972 3.682478

09 June 19.17.03 -0.971014 -0.029869 0.5937654 -2.308572 0.9694604 2.7964339 -2.100737 -4.51415

09 June 20.31.03 -3.350091 -5.630634 2.79118 5.6491748 5.5650201 -4.41498 -28.68748 5.235481

14 June 14.03.23 0.2297671 0.0492618 0.1697406 -0.340267 -1.274055 2.1011774 -0.384037 0.909316

14 June 14.03.27 0.1471389 -0.05417 0.1398139 0.0343207 -1.849301 2.2894258 -0.714343 0.905008

14 June 14.44.21 -0.943498 -1.18086 -1.1263514 -0.035823 -2.032751 -1.049433 -1.417275 -0.0499

14 June 15.14.04 -0.739809 -0.242898 -0.7020107 -1.790937 -1.230426 0.88282 0.9648111 -2.61054

14 June 15.14.06 -0.739809 -0.242898 -0.7020107 -1.790937 -1.230426 0.88282 0.9648111 -2.61054

14 June 15.56.46 -0.6 -0.316627 -0.0079233 5.1955718 -3.153224 -1.321522 -1.058214 -1.66682

14 June 16.27.13 -0.700723 -0.18077 -0.1258277 2.7235201 -4.425353 1.9582548 -0.484866 -2.65819

14 June 17.10.31 2.3095546 2.2100596 3.1778991 7.0253425 1.2796831 1.6048105 -0.371711 2.684124

14 June 17.10.37 2.3581627 2.4521501 3.4780481 8.0559182 2.6068591 0.2374285 -0.262384 2.004328

14 June 17.38.42 1.5366571 1.2998105 0.6258751 0.5521352 1.571724 -0.251622 3.3135153 2.428315

14 June 18.19.36 -0.103927 1.0394003 0.5710338 3.8927377 0.9148459 -2.596264 2.5379628 -4.40822

14 June 18.49.11 0.5237891 0.2006624 -0.2537285 1.3048385 0.0209774 -1.766048 1.515054 1.740266

Average 1.8139147 -0.339728 0.3928352 0.735973 0.097804 0.3056057 -2.37508 9.921748

N

i

i

N

i

ii

n

nSRLsrlBIAS

1

1%


30 May 18.28.03 24.01838 6.3011591 5.502008 7.3453575 5.767706 2.4488734 8.3600869 50.982346

30 May 18.28.05 21.649999 5.5879605 5.5240796 7.3887545 5.625604 2.7858626 5.9380339 45.997507

30 May 19.44.40 6.0234395 2.6800421 1.5972282 1.3144276 1.9417664 1.4057391 4.470719 12.076081

30 May 20.34.59 10.352793 9.4045157 2.4102676 1.3894671 2.8018116 2.6523591 17.801905 13.330928

30 May 21.49.10 8.7923035 6.5642637 1.4903544 0.6774278 1.4165443 2.7547947 12.718548 14.356677

03 June 19.29.40 9.9468092 8.3495864 6.1080678 1.0424705 1.247978 10.893407 12.254538 14.455331

03 June 19.29.46 8.1584689 5.4829551 4.2278404 1.3526917 0.551385 7.4947374 7.6580236 14.281602

03 June 20.30.09 4.9471248 4.8865974 4.4364982 1.3280881 3.4730541 6.8810478 5.5540875 5.1686395

03 June 21.32.15 13.818217 8.7167072 3.2191869 1.7646711 4.5922113 2.2495502 16.535294 24.974822

09 June 18.06.50 3.6492325 3.3550857 3.3141203 1.0607062 4.9123029 3.0934402 3.5721284 4.5905679

09 June 19.17.03 7.9017581 4.6678525 3.5220213 2.3920183 1.9980065 5.2236609 7.0472533 14.678864

09 June 20.31.03 13.20702 13.238626 10.845591 6.5817027 7.9954668 16.116587 18.199615 13.087348

14 June 14.03.23 2.2178965 2.2241762 2.4575271 1.5932563 2.9831703 2.4115382 1.39003 2.1940943

14 June 14.03.27 2.542228 2.5356671 2.8508929 2.1004739 3.3915173 2.7304009 1.3098156 2.5667776

14 June 14.44.21 3.4990007 3.2157341 3.6217531 4.9006689 3.8613583 1.2556177 1.6829193 4.4049635

14 June 15.14.04 3.2720561 2.3817791 2.6278895 3.9910466 1.7910138 1.7394734 1.4597943 5.4457248

14 June 15.14.06 3.2720561 2.3817791 2.6278895 3.9910466 1.7910138 1.7394734 1.4597943 5.4457248

14 June 15.56.46 4.6638932 4.8670876 5.6003828 9.3596914 3.2637342 2.0919407 1.460611 3.8027638

14 June 16.27.13 3.2199541 3.2649655 3.7538822 3.8658866 4.2484587 2.9808499 0.971987 3.0445365

14 June 17.10.31 6.0477142 5.9962511 6.9375003 9.6015133 6.9562264 2.9940136 1.4889278 6.2376505

14 June 17.10.37 6.4638013 6.70896 7.788662 11.106426 7.9712942 1.6976733 1.2376835 5.4426944

14 June 17.38.42 3.9010967 4.0579486 4.2299879 3.0307964 6.3087592 1.4621139 3.6429271 3.2432588

14 June 18.19.36 3.8419853 3.5576891 3.7284048 4.5107921 3.7704067 2.740094 3.1213669 4.7624215

14 June 18.49.11 3.1486584 2.9175566 3.2256421 1.3963118 3.7255836 3.646532 1.861942 3.8976714

Average 7.4398286 5.1393727 4.2353199 3.8785705 3.8494322 3.8120742 5.8832514 11.602875

N

n

N

nLASE

laseRMS N

i

i

N

i

ii

1

1

2

%


30 May 18.28.03 3.4516518 1.1435116 1.7649678 5.4101023 0.2579672 0.1793714 -0.624465 12.141121

30 May 18.28.05 5.6440672 1.2860656 1.7278765 5.7065577 1.2789436 -1.211402 0.0792608 22.050662

30 May 19.44.40 1.3095943 -0.251234 0.723423 -0.581088 1.6219882 0.9101451 -2.945874 7.1856535

30 May 20.34.59 2.8039231 5.7119581 1.5839464 -0.56343 2.7191647 2.2567315 17.124697 -8.143973

30 May 21.49.10 5.1575996 3.1360758 -0.0044368 -0.287876 -0.239717 0.939336 12.05285 12.768042

03 June 19.29.40 -1.474045 -5.128057 -3.4551148 0.677231 -1.175607 -9.962672 -9.270383 12.282237

03 June 19.29.46 0.2842914 -2.856839 -2.0755951 0.9030882 -0.386836 -6.805053 -4.576177 12.109724

03 June 20.30.09 0.8869823 0.8631643 -0.4680711 -1.270719 -3.073449 3.4416703 4.173301 0.9766501

03 June 21.32.15 -7.376881 -2.771704 -1.2684603 -1.663638 -4.092104 2.0157774 -7.425034 -24.71402

09 June 18.06.50 -2.970991 -2.681843 -2.747196 -0.811674 -4.322993 -2.615711 -2.644786 -4.059546

09 June 19.17.03 -0.61978 -0.385523 -0.8213342 2.1873622 -1.029994 -3.283559 1.1271158 -1.501687

09 June 20.31.03 -1.02465 0.7064777 -5.17958 -6.409241 -6.451872 -1.430299 16.808803 -7.541839

14 June 14.03.23 -0.329075 -0.150603 -0.2934833 0.2865882 1.0841841 -2.211316 0.3444011 -1.000969

14 June 14.03.27 -0.278685 -0.078962 -0.3081803 -0.126083 1.5970077 -2.429389 0.6788786 -1.03058

14 June 14.44.21 0.6772601 0.9468135 0.8277526 -0.503301 1.6838371 1.0167909 1.3582257 -0.337529

14 June 15.14.04 0.5037624 0.1194831 0.5494339 1.4270748 1.1615546 -0.941089 -1.005002 1.9504606

14 June 15.14.06 0.5037624 0.1194831 0.5494339 1.4270748 1.1615546 -0.941089 -1.005002 1.9504606

14 June 15.56.46 0.2105922 -0.091802 -0.5294256 -6.615163 2.9207392 1.2277372 1.0133033 1.3490177

14 June 16.27.13 0.4887253 -0.033604 -0.157633 -2.996102 4.0284366 -2.125973 0.4658074 2.4551401

14 June 17.10.31 -2.912784 -2.791277 -3.9530901 -8.498582 -2.047578 -1.771228 0.3286332 -3.370221

14 June 17.10.37 -3.024307 -3.151777 -4.4182416 -9.980935 -3.57008 -0.294374 0.2321942 -2.544421

14 June 17.38.42 -1.817461 -1.603822 -0.9557057 -0.724276 -2.2986 0.207695 -3.559959 -2.621751

14 June 18.19.36 -0.19942 -1.284725 -0.8430625 -4.262018 -1.200818 2.4332824 -2.71913 3.8864343

14 June 18.49.11 -0.729337 -0.386755 0.0229855 -1.342654 -0.322548 1.4604944 -1.581267 -2.019059

Average -0.0348 -0.400646 -0.8220329 -1.192154 -0.445701 -0.830588 0.767933 1.3425003

N

i

i

N

i

ii

n

nLASElaseBIAS

1

1%

RMS deviations and BIAS between the sensors


30 May 18.28.03 262.29443 13.795292 13.186766 18.450681 13.220778 5.0623688 15.824779 571.91566

30 May 18.28.05 250.72166 13.040933 13.399744 18.627148 13.532398 5.249005 12.362008 546.69515

30 May 19.44.40 18.414188 5.0169278 3.3202439 2.5684619 4.1065889 3.0691153 8.1841081 38.998353

30 May 20.34.59 28.932978 30.850717 5.1401208 2.7241208 5.9663092 6.9093549 60.926425 20.136914

30 May 21.49.10 25.865685 18.12378 3.1558428 1.3445748 2.7993543 6.3253848 35.517129 44.171828

03 June 19.29.40 24.544834 12.948891 9.8686053 2.1249378 2.427286 17.294833 18.511577 47.320706

03 June 19.29.46 22.816405 9.237223 7.2712234 2.7832672 1.0901585 12.682082 12.742714 46.467428

03 June 20.30.09 11.426809 11.266071 9.9056416 2.5795618 6.3671217 16.325255 13.252546 12.012664

03 June 21.32.15 18.154712 11.24463 6.0300971 3.3948302 8.2740881 4.7789774 19.966902 33.081726

09 June 18.06.50 6.6404797 6.1538674 6.0896765 2.0537895 8.1385427 5.7294732 6.5219154 8.2179438

09 June 19.17.03 23.101734 9.0752793 6.4838888 5.0675666 3.3399011 9.3441247 14.225004 47.252646

09 June 20.31.03 36.053781 39.512079 23.45228 11.550589 12.238715 38.861222 66.06322 17.777721

14 June 14.03.23 4.4893415 4.5678127 5.0491296 3.3727897 6.3766901 4.5674812 2.8524707 4.1807312

14 June 14.03.27 5.1927727 5.2681006 5.927054 4.3789697 7.4502225 5.1266193 2.7080049 4.8988077

14 June 14.44.21 7.6591045 7.313121 8.284574 11.08429 9.0451615 2.5997452 3.5090873 8.8410176

14 June 15.14.04 7.2485461 5.1998478 5.8216692 9.1286074 3.8469623 3.3508938 2.7539606 12.188221

14 June 15.14.06 7.2485461 5.1998478 5.8216692 9.1286074 3.8469623 3.3508938 2.7539606 12.188221

14 June 15.56.46 8.4457508 8.4649613 9.6751464 15.188576 7.1253039 4.4843629 3.07516 8.3730336

14 June 16.27.13 6.6085378 6.5916667 7.581571 7.0525464 9.343161 5.6303044 1.961377 6.6716697

14 June 17.10.31 10.02109 9.7350022 11.218843 15.380097 11.096999 5.5622588 2.8965292 11.031787

14 June 17.10.37 10.362178 10.466844 12.111505 17.379191 12.116999 3.3575887 2.4416187 9.9582828

14 June 17.38.42 7.2283094 7.5281882 7.8448895 5.6897312 11.600969 3.0063287 6.7654484 5.9656543

14 June 18.19.36 7.9450457 6.9256153 7.3327606 8.1882216 7.6300425 5.9518788 5.8047761 10.963357

14 June 18.49.11 6.5746117 6.407956 7.1822686 2.7083161 8.1345275 8.3947298 3.5563107 7.16735

Average 34.08298 10.997277 8.3814671 7.581228 7.463135 7.7922617 13.549043 64.01987

N

n

N

LASESRL

lasesrlRMS N

i

i

N

iii

1

1

2

_%


30 May 18.28.03 59.446723 -3.990305 -4.9722228 -13.52783 -2.026338 -0.606149 -1.327354 298.26848

30 May 18.28.05 54.04046 -4.01476 -4.9278417 -14.16286 -4.071254 2.1307037 -1.604706 272.60129

30 May 19.44.40 -4.794957 0.23435 -1.5528456 1.094671 -3.403438 -1.903168 5.1754203 -23.72882

30 May 20.34.59 -11.27205 -17.18095 -3.4155039 1.0511852 -5.772633 -4.819407 -55.23835 10.973221

30 May 21.49.10 -14.84358 -8.644418 -0.0849971 0.5575381 0.4001658 -2.226745 -33.12478 -38.18162

03 June 19.29.40 -1.609478 8.0988964 5.7072589 -1.398759 2.2906317 16.163886 14.011575 -38.15865

03 June 19.29.46 -4.135557 4.7028613 3.5373044 -1.881461 0.76165 11.710952 7.2055844 -37.4096

03 June 20.30.09 -2.896479 -2.820096 0.0654968 2.472922 5.7047893 -9.118067 -9.817584 -3.184039

03 June 21.32.15 9.7629173 3.6113648 2.149602 3.2074646 7.4244862 -4.246531 8.2623508 32.921703

09 June 18.06.50 5.4575146 4.9508506 5.0908294 1.5797816 7.9204641 4.8769938 4.8237944 7.3649557

09 June 19.17.03 -1.942028 -0.059737 1.1875309 -4.617143 1.9389208 5.5928678 -4.201474 -9.0283

09 June 20.31.03 -6.700182 -11.26127 5.58236 11.29835 11.13004 -8.82996 -57.37496 10.470962

14 June 14.03.23 0.4595342 0.0985237 0.3394813 -0.680534 -2.54811 4.2023548 -0.768073 1.8186326

14 June 14.03.27 0.2942778 -0.10834 0.2796278 0.0686413 -3.698603 4.5788517 -1.428686 1.8100157

14 June 14.44.21 -1.886997 -2.36172 -2.2527027 -0.071645 -4.065501 -2.098865 -2.83455 -0.099805

14 June 15.14.04 -1.479618 -0.485795 -1.4040214 -3.581874 -2.460852 1.76564 1.9296222 -5.221071

14 June 15.14.06 -1.479618 -0.485795 -1.4040214 -3.581874 -2.460852 1.76564 1.9296222 -5.221071

14 June 15.56.46 -1.2 -0.633253 -0.0158467 10.391144 -6.306449 -2.643044 -2.116428 -3.333635

14 June 16.27.13 -1.401446 -0.361539 -0.2516555 5.4470403 -8.850707 3.9165096 -0.969732 -5.316387

14 June 17.10.31 4.6191091 4.4201192 6.3557981 14.050685 2.5593663 3.2096211 -0.743421 5.3682475

14 June 17.10.37 4.7163254 4.9043003 6.9560962 16.111836 5.2137183 0.474857 -0.524767 4.0086552

14 June 17.38.42 3.0733142 2.599621 1.2517503 1.1042704 3.143448 -0.503244 6.6270307 4.8566297

14 June 18.19.36 -0.207854 2.0788007 1.1420675 7.7854755 1.8296918 -5.192529 5.0759256 -8.816438

14 June 18.49.11 1.0475782 0.4013248 -0.5074571 2.6096769 0.0419548 -3.532097 3.030108 3.480532

Average 3.627829 -0.679457 0.7856703 1.471946 0.1956079 0.6112113 -4.75016 19.843495

N

i

i

N

iii

n

LASESRLlasesrlBIAS

1

1_%

Average (over 24 comparisons) RMS deviation and BIASBetween SRL and meanAverage RMS deviation < 4.19 % 1.3 < z < 2.8 km, Average BIAS < 0.34 % 1.3 < z < 3.3 km

Between LASE and meanError exceeding 100 % have been excluded from the average. Average RMS deviation < 4.23 % 1.3 < z < 2.8 km, Average BIAS < 0.4 % 1.3 < z < 3.3 km

Between SRL and LASEError exceeding 100 % have been excluded from the average. Average RMS deviation < 8.4 % 1.3 < z < 2.8 km, Average BIAS < 0.68 % 1.3 < z < 3.3 km

AVERAGE RMS Deviation (in the height region 1.3-2.8 km) between SRL/LASE and the mean value does not exceed 4.2 %

AVERAGE BIAS (height region 1.3-3.3 km) between SRL/LASE and the mean value does not exceed 0.4 %

airborne/ground-based sensor intercomparison: srl/lase paolo di girolamo, domenico sabatino, david...

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