Fixed-WingFixed-WingFixed-WingFixed-WingAirborneAirborneAirborneAirborneRadiometerRadiometerRadiometerRadiometer
C-FARTerra Validation
Instrument Checkout Flight Results24 March 2000
R.J.Wheeler, E.K. Feldl, M.R. Wilson, G.C. Purgold
Up-Looking RadiometersFR Spectral Hemispheric 0.4 - 2.20 µµµµmEppley PSP 0.3 - 3.0 µµµµmEppley PIR 5- 50 µµµµm
Down-Looking RadiometersFR Spectral Hemispheric 0.4 - 2.20 µµµµmEppley PSP 0.3 - 3.0 µµµµmEppley PIR 5- 50 µµµµmNarrow FOV Spectral Directional Radiance Scanner 0.35 - 2.5 µµµµm (October 2000)
Ambient Total TemperatureAmbient DewpointBarometric Pressure
GPS Position & TimeInternal Flight Pattern Generation & NavigationGyro Attitude and Heading
C-FAR Measurement Complement
The C-FAR Clear-Sky Terra Coincident Ocean Validation Flight Profile.- Five complete patterns from 30 to 3,000 m MSL.- CERES Ocean Validation Platform Coincident Measurements.- Inital Data Flights Conducted 8 & 24 March 2000.
30 m
150 m
300 m
1525 m
3000 m
COVE
32 Km.
112 degrees
COVELighthouse
3 Km.
LaRC
NorfolkAirport
AtlanticOcean
ChesapeakeBay
VirginiaBeach
Virginia'sEasternShore
Outbound
Inbound
C-FAR Footprint (45 Degree Basis)Altitude Footprint Diameter30 m 60 m150 m 300 m300 m 600 m
1500 m 3000 m
3000 m 6000 m
COVELighthouse
LaRCAtlanticOcean
ChesapeakeBay
Virginia'sEasternShore
C-FAR ObservedEffluent Plume
Terra / MISR Coincident Validation Flight24 March 2000
C-FAR 3000mFootprint
G M T ( de cima l- hours)
Wa
vele
ng
th(n
m)
16.35 16.4400
600
800
1000
1200
1400
1600
1800
2000
2200
0.1400.1320.1240.1150.1070.0990.0910.0820.0740.0660.0580.0490.0410.0330.0250.0160.0080.000
W/m2/nm
CFAR - Upwelling Spectroradiometer - Full RangeMISR Overflight Coincident Data24 March 2000 (Day 084)150 m MSL, Outbound Leg
G M T ( de cima l- hours)
Wavelength
16.7 16.75 16.8400
600
800
1000
1200
1400
1600
1800
2000
2200
1.4001.3291.2591.1881.1181.0470.9760.9060.8350.7650.6940.6240.5530.4820.4120.3410.2710.200
W/m2/nm
CFAR - Downwelling Spectral Radiometer -Full RangeMISR Overflight Coincident Data24 March 2000 (Day 084)30 Meters Altitude, Outbound Leg
G M T ( de cima l- hours)
Wavelength
17.797 17.798 17.799 17.8400
600
800
1000
1200
1400
1600
1800
2000
2200
1.4001.3181.2351.1531.0710.9880.9060.8240.7410.6590.5760.4940.4120.3290.2470.1650.0820.000
W/m2/nm
CFAR - Downwelling Spectral Radiometer -Full RangeMISR Overflight Coincident Data24 March 2000 (Day 084)3000 Meters altitude, Outbound Leg
Wavelength (nm)
Irradiance,W
/m2/nm
500 1000 1500 20000
0.025
0.05
0.075
0.1
0.125
0.15
0.175
0.2
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR Upwelling Spectral IrradianceEffluent Plume Area24 March 2000 (Day 084)
Wavelength (nm)
Irradiance,W
/m2/nm
500 1000 1500 20000
0.025
0.05
0.075
0.1
0.125
0.15
0.175
0.2
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR Upwelling Spectral IrradianceCOVE Platform Area24 March 2000 (Day 084)
Wavelength (nm)
Irradiance,W
/m2/nm
500 1000 1500 20000
0.25
0.5
0.75
1
1.25
1.5
1.75
2
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR Downwelling Spectral IrradianceEffluent Plume Area24 March 2000 (Day 084)
Wavelength (nm)
Irradiance,W
/m2/nm
500 1000 1500 20000
0.25
0.5
0.75
1
1.25
1.5
1.75
2
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR Downwelling Spectral IrradianceCOVE Platform Area24 March 2000 (Day 084)
GMT (Decimal Hours)
Wavelength,nm
16.7 16.75 16.8
400
500
600
700
800
900
1000
1100
1200
0.120.110.100.090.080.070.050.040.030.020.010.00
C-FAR Spectral AlbedoMISR Coincident Data24 March 2000 - day 0843 0 M e te rs A ltitude O utbou nd Le g
GMT (Decimal Hours)
Wavelength,nm
17.8 17.805 17.81 17.815
400
500
600
700
800
900
1000
1100
1200
0.250.230.210.200.180.160.140.130.110.090.070.050.040.020.00
C-FAR Spectral AlbedoMISR Coincident Data24 March 2000 - day 0843000 Meters Altitude Outbound Leg
Wavelength, nm
Sp ec t r alA l b ed o
400 500 600 700 800 900 10000
0.025
0.05
0.075
0.1
0.125
0.15
0.175
0.2
0.225
0.25
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR COVE Spectral Albedo Variability With HeightMISR Overflight Coincident Data24 March 2000 (Day 084)
Frame 001 27 Apr 2000 | | | |Frame 001 27 Apr 2000 | | | |
Wavelength, nm
SpectralAlbedo
400 600 800 1000 12000
0.025
0.05
0.075
0.1
0.125
0.15
0.175
0.2
0.225
0.25
30 Meters150 Meters300 Meters1500 Meters3000 Meters
C-FAR Spectral Albedo Variability With HeightMISR Overflight Coincident Data24 March 2000 (Day 084)Outbound Legs (West To East Progression)
Frame 001 01 May 2000 | | | |Frame 001 01 May 2000 | | | |
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C-FAR Schedule
April - May 2000 - Broadband Pyranometer & Pyrgeometer Enhancements, Spectroradiometer Recertification
June 2000 - Resumption of Terra Coincident COVE and Hogg Island Flights 2 - 4 Per Month on Optimum Overpass Dates.
August 2000 - Begin Spectral Radiance Scanner Integration
October 2000 - Spectral Radiance Scanner Local Instrument Checkout Flights (COVE / Hogg Island)
November / December 2000 - Yuma Desert BRDF
Spring 2001 - ARM CART (TBD)
C-FAR On The Web at: www-svg.larc.nasa.gov/~Ceres