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Global Attributes:
NC_GLOBAL.title: Cloud Absorption Radiometer (CAR) Level-1D NetCDF data NC_GLOBAL.experiment_name: ARCTAS NC_GLOBAL.flight_number: 2015.00000 NC_GLOBAL.aircraft: NASA - P3 NC_GLOBAL.primary_navigation_system: CAR Autonomous Navigation System NC_GLOBAL.start_date: 2008-06-29:21:06:17.4 NC_GLOBAL.end_date: 2008-06-29:21:08:44.4 NC_GLOBAL.lat_min: 61.5569115 NC_GLOBAL.lat_max: 61.6102982 NC_GLOBAL.lon_min: -113.967873 NC_GLOBAL.lon_max: -113.872093 NC_GLOBAL.flight_summary: https://car.gsfc.nasa.gov/flights/snowex/flight-2015 NC_GLOBAL.MeanSolarZenithAngle: 41.2782974 NC_GLOBAL.Sky_Condition: [0=clear(above 90% cloud free), 1=cloudy(10% or above cloud covered)] NC_GLOBAL.Observed_Sky_Condition: 0 NC_GLOBAL.Dominant_Surface: [1=snow/ice, 2=vegetation, 3=clouds, 4=ocean/lake, 5=smoke, 6=barren(salt pans, desert), 7=mixed(city scape, costal areas, etc.) ] NC_GLOBAL.Surface_type: 4 NC_GLOBAL.Format: NetCDF4 NC_GLOBAL.Conventions: CF-1.7 NC_GLOBAL.Instrument_PI: Charles K. Gatebe NC_GLOBAL.Email: Charles.K.Gatebe@nasa.gov NC_GLOBAL.Website: https://car.gsfc.nasa.gov NC_GLOBAL.Reference: Gatebe CK, King MD. Airborne spectral BRDF of various surface types (ocean, vegetation, snow, desert, wetlands, cloud decks, smoke layers) for remote sensing applications. Remote Sensing of Environment. 2016;179:131 - 148. NC_GLOBAL.production_date: 2019-01-27T18:57:30.0Z NC_GLOBAL.VersionID: 2 NC_GLOBAL.ShortName: CAR_ARCTAS_BRDF NC_GLOBAL.LongName: CAR ARCTAS BRDF Measurements NC_GLOBAL.GranuleID: ARCTAS2008-car_p3b_20080629210617_R1_CAR2015_Level1D-20190127.nc NC_GLOBAL.Identifier_Product_DOI_Authority: http://dx.doi.org/ NC_GLOBAL.DOI: 10.5067/SQSWDF366LDY
Variables:
brdf_reflectance_339nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_339nm.long_name: bidirectional reflectance factor at 339 nm brdf_reflectance_339nm.units: none dimensional quantity brdf_reflectance_339nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_382nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_382nm.long_name: bidirectional reflectance factor at 382 nm brdf_reflectance_382nm.units: none dimensional quantity brdf_reflectance_382nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_480nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_480nm.long_name: bidirectional reflectance factor at 480 nm brdf_reflectance_480nm.units: none dimensional quantity brdf_reflectance_480nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_677nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_677nm.long_name: bidirectional reflectance factor at 677 nm brdf_reflectance_677nm.units: none dimensional quantity brdf_reflectance_677nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_873nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_873nm.long_name: bidirectional reflectance factor at 873 nm brdf_reflectance_873nm.units: none dimensional quantity brdf_reflectance_873nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_1032nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_1032nm.long_name: bidirectional reflectance factor at 1032 nm brdf_reflectance_1032nm.units: none dimensional quantity brdf_reflectance_1032nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_1222nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_1222nm.long_name: bidirectional reflectance factor at 1222 nm brdf_reflectance_1222nm.units: none dimensional quantity brdf_reflectance_1222nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_1275nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_1275nm.long_name: bidirectional reflectance factor at 1275 nm brdf_reflectance_1275nm.units: none dimensional quantity brdf_reflectance_1275nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
brdf_reflectance_2095nm
: Grid of Array of 32 bit Reals [ZenithAngles = 0..360][AzimuthAngles = 0..360]
ZenithAngles:
AzimuthAngles:
brdf_reflectance_2095nm.long_name: bidirectional reflectance factor at 2095 nm brdf_reflectance_2095nm.units: none dimensional quantity brdf_reflectance_2095nm._FillValue: -9999.00000 ZenithAngles.long_name: Zenith angles ZenithAngles._FillValue: -9999.00000 ZenithAngles.units: degrees AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
ZenithAngles
: Array of 32 bit Reals [ZenithAngles = 0..360]
ZenithAngles:
long_name: Zenith angles _FillValue: -9999.00000 units: degrees
AzimuthAngles
: Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
long_name: Azimuth angles _FillValue: -9999.00000 units: degrees
AircraftAltitude
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
AircraftAltitude.long_name: GPS height in Meters above the sea level AircraftAltitude.units: m AircraftAltitude._FillValue: -9999.00000 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
Time
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
Time._FillValue: -9999.00000 Time.long_name: time Time.units: seconds since 2008-06-29 00:00:00 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
AircraftLatitude
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
AircraftLatitude.long_name: Aircraft Latitude Degrees AircraftLatitude.units: degrees_north AircraftLatitude.valid_range: -90.0000000, 90.0000000 AircraftLatitude._FillValue: -9999.00000 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
AircraftLongitude
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
AircraftLongitude.long_name: Aircraft Longitude Degrees AircraftLongitude.units: degrees_east AircraftLongitude.valid_range: -180.000000, 180.000000 AircraftLongitude._FillValue: -9999.00000 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
SolarZenithAngle
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
SolarZenithAngle.long_name: Solar Zenith Angle Degrees SolarZenithAngle.units: degrees SolarZenithAngle._FillValue: -9999.00000 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
SolarAzimuthAngle
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
SolarAzimuthAngle.long_name: Solar Azimuth Angle Degrees SolarAzimuthAngle.units: degrees SolarAzimuthAngle._FillValue: -9999.00000 AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
AircraftPitch
: Grid of Array of 32 bit Reals [AzimuthAngles = 0..360]
AzimuthAngles:
AircraftPitch.long_name: Aircraft Pitch Degrees AircraftPitch.units: degrees AircraftPitch.valid_range: -90.0000000, 90.0000000 AircraftPitch._FillValue: -9999.00000 AircraftPitch.Positive: nose_up AircraftPitch.Negative: nose_down AzimuthAngles.long_name: Azimuth angles AzimuthAngles._FillValue: -9999.00000 AzimuthAngles.units: degrees
SRF_339nm
: Grid of Array of 32 bit Reals [SpectralRange_339nm = 0..20]
SpectralRange_339nm:
SRF_339nm.long_name: Spectral Response Function 2291 nm SRF_339nm.valid_range: 0.00000000, 1.00000000 SRF_339nm._FillValue: -9999.00000 SRF_339nm.units: percent SpectralRange_339nm.long_name: SpectralRange for CAR ch1 339nm SpectralRange_339nm.units: nm SpectralRange_339nm._FillValue: -9999.00000
SRF_382nm
: Grid of Array of 32 bit Reals [SpectralRange_382nm = 0..20]
SpectralRange_382nm:
SRF_382nm.long_name: Spectral Response Function 382 nm SRF_382nm.valid_range: 0.00000000, 1.00000000 SRF_382nm._FillValue: -9999.00000 SRF_382nm.units: percent SpectralRange_382nm.long_name: SpectralRange for CAR ch2 382nm SpectralRange_382nm.units: nm SpectralRange_382nm._FillValue: -9999.00000
SRF_480nm
: Grid of Array of 32 bit Reals [SpectralRange_480nm = 0..45]
SpectralRange_480nm:
SRF_480nm.long_name: Spectral Response Function 480 nm SRF_480nm.valid_range: 0.00000000, 1.00000000 SRF_480nm._FillValue: -9999.00000 SRF_480nm.units: percent SpectralRange_480nm.long_name: SpectralRange for CAR ch3 480nm SpectralRange_480nm.units: nm SpectralRange_480nm._FillValue: -9999.00000
SRF_677nm
: Grid of Array of 32 bit Reals [SpectralRange_677nm = 0..70]
SpectralRange_677nm:
SRF_677nm.long_name: Spectral Response Function 677 nm SRF_677nm.valid_range: 0.00000000, 1.00000000 SRF_677nm._FillValue: -9999.00000 SRF_677nm.units: percent SpectralRange_677nm.long_name: SpectralRange for CAR ch4 677nm SpectralRange_677nm.units: nm SpectralRange_677nm._FillValue: -9999.00000
SRF_873nm
: Grid of Array of 32 bit Reals [SpectralRange_873nm = 0..75]
SpectralRange_873nm:
SRF_873nm.long_name: Spectral Response Function 873 nm SRF_873nm.valid_range: 0.00000000, 1.00000000 SRF_873nm._FillValue: -9999.00000 SRF_873nm.units: percent SpectralRange_873nm.long_name: SpectralRange for CAR ch5 873nm SpectralRange_873nm.units: nm SpectralRange_873nm._FillValue: -9999.00000
SRF_1032nm
: Grid of Array of 32 bit Reals [SpectralRange_1032nm = 0..85]
SpectralRange_1032nm:
SRF_1032nm.long_name: Spectral Response Function 1032 nm SRF_1032nm.valid_range: 0.00000000, 1.00000000 SRF_1032nm._FillValue: -9999.00000 SRF_1032nm.units: percent SpectralRange_1032nm.long_name: SpectralRange for CAR ch6 1032nm SpectralRange_1032nm.units: nm SpectralRange_1032nm._FillValue: -9999.00000
SRF_1222nm
: Grid of Array of 32 bit Reals [SpectralRange_1222nm = 0..74]
SpectralRange_1222nm:
SRF_1222nm.long_name: Spectral Response Function 1222 nm SRF_1222nm.valid_range: 0.00000000, 1.00000000 SRF_1222nm._FillValue: -9999.00000 SRF_1222nm.units: percent SpectralRange_1222nm.long_name: SpectralRange for CAR ch7 1222nm SpectralRange_1222nm.units: nm SpectralRange_1222nm._FillValue: -9999.00000
SRF_1275nm
: Grid of Array of 32 bit Reals [SpectralRange_1275nm = 0..83]
SpectralRange_1275nm:
SRF_1275nm.long_name: Spectral Response Function 1275 nm SRF_1275nm.valid_range: 0.00000000, 1.00000000 SRF_1275nm._FillValue: -9999.00000 SRF_1275nm.units: percent SpectralRange_1275nm.long_name: SpectralRange for CAR ch8 1275nm SpectralRange_1275nm.units: nm SpectralRange_1275nm._FillValue: -9999.00000
SRF_2095nm
: Grid of Array of 32 bit Reals [SpectralRange_2095nm = 0..120]
SpectralRange_2095nm:
SRF_2095nm.long_name: Spectral Response Function 2095 nm SRF_2095nm.valid_range: 0.00000000, 1.00000000 SRF_2095nm._FillValue: -9999.00000 SRF_2095nm.units: percent SpectralRange_2095nm.long_name: SpectralRange for CAR ch12 2095nm SpectralRange_2095nm.units: nm SpectralRange_2095nm._FillValue: -9999.00000
Spectral_band
: Array of 32 bit Reals [Spectral_band = 0..8]
Spectral_band:
long_name: Spectral band units: nm _FillValue: -9999.00000
SpectralRange_339nm
: Array of 32 bit Reals [SpectralRange_339nm = 0..20]
SpectralRange_339nm:
long_name: SpectralRange for CAR ch1 339nm units: nm _FillValue: -9999.00000
SpectralRange_382nm
: Array of 32 bit Reals [SpectralRange_382nm = 0..20]
SpectralRange_382nm:
long_name: SpectralRange for CAR ch2 382nm units: nm _FillValue: -9999.00000
SpectralRange_480nm
: Array of 32 bit Reals [SpectralRange_480nm = 0..45]
SpectralRange_480nm:
long_name: SpectralRange for CAR ch3 480nm units: nm _FillValue: -9999.00000
SpectralRange_677nm
: Array of 32 bit Reals [SpectralRange_677nm = 0..70]
SpectralRange_677nm:
long_name: SpectralRange for CAR ch4 677nm units: nm _FillValue: -9999.00000
SpectralRange_873nm
: Array of 32 bit Reals [SpectralRange_873nm = 0..75]
SpectralRange_873nm:
long_name: SpectralRange for CAR ch5 873nm units: nm _FillValue: -9999.00000
SpectralRange_1032nm
: Array of 32 bit Reals [SpectralRange_1032nm = 0..85]
SpectralRange_1032nm:
long_name: SpectralRange for CAR ch6 1032nm units: nm _FillValue: -9999.00000
SpectralRange_1222nm
: Array of 32 bit Reals [SpectralRange_1222nm = 0..74]
SpectralRange_1222nm:
long_name: SpectralRange for CAR ch7 1222nm units: nm _FillValue: -9999.00000
SpectralRange_1275nm
: Array of 32 bit Reals [SpectralRange_1275nm = 0..83]
SpectralRange_1275nm:
long_name: SpectralRange for CAR ch8 1275nm units: nm _FillValue: -9999.00000
SurfaceAtmosphereAlbedo
: Grid of Array of 32 bit Reals [Spectral_band = 0..8]
Spectral_band:
SurfaceAtmosphereAlbedo.long_name: Surface Atmosphere albedo SurfaceAtmosphereAlbedo.units: percent SurfaceAtmosphereAlbedo._FillValue: -9999.00000 Spectral_band.long_name: Spectral band Spectral_band.units: nm Spectral_band._FillValue: -9999.00000
SpectralRange_2095nm
: Array of 32 bit Reals [SpectralRange_2095nm = 0..120]
SpectralRange_2095nm:
long_name: SpectralRange for CAR ch12 2095nm units: nm _FillValue: -9999.00000
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