airborne/ground-based sensor intercomparison: srl/lase paolo di girolamo, domenico sabatino, david...
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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.
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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.
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
• 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.
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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)
Water Vapour mixing ratio (g/kg)
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)
Water Vapour mixing ratio (g/kg)
LASE (18:28:05 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)
Water Vapour mixing ratio (g/kg)
LASE (19:44:40 UT) SRL (19:40 - 19:49 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)
Water Vapour mixing ratio (g/kg)
LASE (20:34:59 UT) SRL (20:31 - 20:40 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)
Water Vapour mixing ratio (g/kg)
LASE (21:49:10 UT) SRL (21:44 - 21:55 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)
Water Vapour mixing ratio (g/kg)
LASE (19:29:40 UT) SRL (19:25 - 19:34 UT)
LASE-SRL intercomparison, 03 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (19:29:46 UT) SRL (19:25 - 19:34 UT)
LASE-SRL intercomparison, 03 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 12
0
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (20:30:09 UT) SRL (20:26 - 20:35 UT)
LASE-SRL intercomparison, 03 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (21:32:15 UT) SRL (21:28 - 21:37 UT)
LASE-SRL intercomparison, 03 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 12 140
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (18:06:50 UT) SRL (18:02 - 18:11 UT)
LASE-SRL intercomparison, 09 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 12 140
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (19:17:00 UT) SRL (19:13 - 19:22 UT)
LASE-SRL intercomparison, 09 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 12 140
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (20:31:03 UT) SRL (20:26 - 20:35 UT)
LASE-SRL intercomparison, 09 June 2002
Deviation (%)
(b)
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)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (14:03:27 UT) SRL (13:59 - 14:08 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (14:44:21 UT) SRL (14:40 - 14:49 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (15:14:04 UT) SRL (15:10 - 15:19 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (15:14:06 UT) SRL (15:10 - 15:19 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (15:56:46 UT) SRL (15:52 - 16:01 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (16:27:13 UT) SRL (16:23 - 16:33 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (17:10:31 UT) SRL (17:06 - 17:15 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (17:10:37 UT) SRL (17:06 - 17:15 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (17:38:42 UT) SRL (17:34 - 17:45 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (18:19:36 UT) SRL (18:15 - 18:24 UT)
LASE-SRL intercomparison, 14 June 2002
Deviation (%)
(b)
0 2 4 6 8 10 120
1000
2000
3000
4000
5000
6000
7000
-50 0 50
(a)
Hei
ght (
m)
Water Vapour mixing ratio (g/kg)
LASE (18:49:11 UT) SRL (18:44 - 18:53 UT)
LASE-SRL intercomparison, 14 June 2002
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
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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
IHOP_2002 Water Vapor Intercomparison Workshop, 2-3 October 2003, NCAR, Boulder, CO
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
%
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 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%
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 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
%
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 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
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 18.28.03 262.29443 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
_%
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 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 %