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NC_GLOBAL.title: S-NPP CrIS IMG: Collocated VIIRS level 1 / cloud mask statistical summary NC_GLOBAL.project: NASA CrIS L1B Science and Software Team NC_GLOBAL.institution: Space Science & Engineering Center, University of Wisconsin - Madison NC_GLOBAL.processing_level: 2 NC_GLOBAL.Conventions: CF-1.7, ACDD-1.3 NC_GLOBAL.platform: SUOMI-NPP > Suomi National Polar-orbiting Partnership NC_GLOBAL.platform_vocabulary: GCMD:GCMD Keywords NC_GLOBAL.time_coverage_start: 2012-06-05T02:36:00Z NC_GLOBAL.time_coverage_end: 2012-06-05T02:42:00Z NC_GLOBAL.geospatial_lat_min: -42.3681641 NC_GLOBAL.geospatial_lat_max: -17.8310795 NC_GLOBAL.geospatial_lon_min: 153.050491 NC_GLOBAL.geospatial_lon_max: -178.153961 NC_GLOBAL.geospatial_bounds: POLYGON ((-42.21 156.54, -38.00 -178.47, -17.91 173.50, -21.37 153.42, -42.21 156.54)) NC_GLOBAL.orbitDirection: Ascending NC_GLOBAL.inputs: CLDMSK_L2_VIIRS_SNPP.A2012157.0230.001.2019071044425.nc, CLDMSK_L2_VIIRS_SNPP.A2012157.0236.001.2019071044437.nc, CLDMSK_L2_VIIRS_SNPP.A2012157.0242.001.2019071044431.nc, SNDR.SNPP.CRIS.20120605T0236.m06.g027.L1B_NSR.std.v2_0_15.T.180207003351.nc, VNP02MOD.A2012157.0230.001.2017322071548.uwssec.nc, VNP02MOD.A2012157.0236.001.2017322071545.uwssec.nc, VNP02MOD.A2012157.0242.001.2017322071551.uwssec.nc, VNP03MOD.A2012157.0230.001.2017322071813.uwssec.nc, VNP03MOD.A2012157.0236.001.2017322071817.uwssec.nc, VNP03MOD.A2012157.0242.001.2017322071814.uwssec.nc NC_GLOBAL.creator_name: NASA Suomi-NPP Atmosphere SIPS NC_GLOBAL.creator_url: https://sips.ssec.wisc.edu/ NC_GLOBAL.creator_email: sips.admin@ssec.wisc.edu NC_GLOBAL.publisher_name: Goddard Earth Science Data and Information Services Center NC_GLOBAL.publisher_url: http://disc.sci.gsfc.nasa.gov/ NC_GLOBAL.publisher_email: gsfc-help-disc@lists.nasa.gov NC_GLOBAL.license: Freely Distributed NC_GLOBAL.product_version: 2.0 NC_GLOBAL.date_created: 2020-07-22T21:21:37Z NC_GLOBAL.source: cris_l1 2.0.15; viirs_l1 2.0.2; CLDMSK_L2_VIIRS 1.0 NC_GLOBAL.algorithm_version: crisimg 0.1.13; collopak 0.1.78 NC_GLOBAL.short_name: SNDRSNCrISL1BIMG NC_GLOBAL.id: 10.5067/NC505NHFIHCY NC_GLOBAL.naming_authority: http://dx.doi.org/
Variables:
viirs_subset
: Array of strings [viirs_subset = 0..2]
viirs_subset:
long_name: Subset of CrIS-collocated VIIRS pixels included comment: All pixels, Clear, Cloudy
viirs_refl_band
: Array of strings [viirs_refl_band = 0..10]
viirs_refl_band:
long_name: VIIRS reflective band comment: M01, M02, M03, M04, M05, M06, M07, M08, M09, M10, M11
viirs_emis_band
: Array of strings [viirs_emis_band = 0..4]
viirs_emis_band:
long_name: VIIRS emissive band comment: M12, M13, M14, M15, M16
viirs_cris_band
: Array of strings [viirs_cris_band = 0..2]
viirs_cris_band:
long_name: VIIRS band with CrIS spectral overlap comment: M13, M15, M16
obs_time_tai93
: Array of 64 bit Reals [atrack = 0..44][xtrack = 0..29]
atrack:
xtrack:
long_name: CrIS observation time comment: TAI93 format; epoch is 1993-01-01 0Z UTC; count includes leap seconds units: seconds since 1993-01-01 00:00:27 _FillValue: -999.0000000000000
lat
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: CrIS FOV center latitude units: degrees_north valid_range: -90.0000000, 90.0000000 standard_name: latitude _FillValue: -999.000000
lon
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: CrIS FOV center longitude units: degrees_east valid_range: -180.000000, 180.000000 standard_name: longitude _FillValue: -999.000000
sat_zen
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Zenith angle to satellite from CrIS FOV center units: degrees valid_range: 0.00000000, 90.0000000 standard_name: sensor_zenith_angle coordinates: lat lon _FillValue: -999.000000
sat_azi
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Azimuth angle to satellite from CrIS FOV center units: degrees valid_range: 0.00000000, 360.000000 comment: North is 0, east is 90 standard_name: sensor_azimuth_angle coordinates: lat lon _FillValue: -999.000000
sol_zen
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Zenith angle to sun from CrIS FOV center units: degrees valid_range: 0.00000000, 180.000000 standard_name: solar_zenith_angle coordinates: lat lon _FillValue: -999.000000
sol_azi
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Azimuth angle to sun from CrIS FOV center units: degrees valid_range: 0.00000000, 360.000000 comment: North is 0, east is 90 standard_name: solar_azimuth_angle coordinates: lat lon _FillValue: -999.000000
viirs_count
: Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2]
atrack:
xtrack:
fov:
viirs_subset:
long_name: Number of VIIRS pixels within CrIS FOV coordinates: lat lon _FillValue: -999
viirs_cloud_frac
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Fraction of VIIRS pixels within CrIS FOV flagged as cloudy valid_range: 0.00000000, 1.00000000 coordinates: lat lon _FillValue: -999.000000
viirs_thin_cirrus_frac_refl
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Fraction of tested VIIRS pixels within CrIS FOV flagged with thin cirrus via 1.38\316\274m test valid_range: 0.00000000, 1.00000000 coordinates: lat lon _FillValue: -999.000000
viirs_thin_cirrus_frac_emis
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Fraction of tested VIIRS pixels within CrIS FOV flagged with thin cirrus via 11\316\274m/12\316\274m test valid_range: 0.00000000, 1.00000000 coordinates: lat lon _FillValue: -999.000000
viirs_thin_cirrus_test_count_refl
: Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Number of VIIRS pixels within CrIS FOV tested for thin cirrus via 1.38\316\274m test coordinates: lat lon _FillValue: -999
viirs_thin_cirrus_test_count_emis
: Array of 16 bit Integers [atrack = 0..44][xtrack = 0..29][fov = 0..8]
atrack:
xtrack:
fov:
long_name: Number of VIIRS pixels within CrIS FOV tested for thin cirrus via 11\316\274m/12\316\274m test coordinates: lat lon _FillValue: -999
viirs_daytime_frac
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2]
atrack:
xtrack:
fov:
viirs_subset:
long_name: Fraction of VIIRS pixels within CrIS FOV that are in daylight comment: Daytime defined as in VIIRS cloud mask, solar zenith angle less than 85 degrees valid_range: 0.00000000, 1.00000000 coordinates: lat lon _FillValue: -999.000000
viirs_refl
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_refl_band = 0..10]
atrack:
xtrack:
fov:
viirs_subset:
viirs_refl_band:
long_name: Mean VIIRS reflectance within CrIS FOV units: 1 coordinates: lat lon _FillValue: -999.000000
viirs_refl_sdev
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_refl_band = 0..10]
atrack:
xtrack:
fov:
viirs_subset:
viirs_refl_band:
long_name: VIIRS reflectance standard deviation within CrIS FOV units: 1 coordinates: lat lon _FillValue: -999.000000
viirs_refl_rad
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_refl_band = 0..10]
atrack:
xtrack:
fov:
viirs_subset:
viirs_refl_band:
long_name: Mean VIIRS reflective band radiance within CrIS FOV units: W/(m2 sr \316\274m) standard_name: toa_outgoing_radiance_per_unit_wavelength coordinates: lat lon _FillValue: -999.000000
viirs_refl_rad_sdev
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_refl_band = 0..10]
atrack:
xtrack:
fov:
viirs_subset:
viirs_refl_band:
long_name: VIIRS reflective band radiance standard deviation within CrIS FOV units: W/(m2 sr \316\274m) coordinates: lat lon _FillValue: -999.000000
viirs_bt
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_emis_band = 0..4]
atrack:
xtrack:
fov:
viirs_subset:
viirs_emis_band:
long_name: VIIRS brightness temperature within CrIS FOV units: K standard_name: toa_brightness_temperature comment: Calculated from viirs_emis_rad and VIIRS spectral response coordinates: lat lon _FillValue: -999.000000
viirs_bt_sdev
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_emis_band = 0..4]
atrack:
xtrack:
fov:
viirs_subset:
viirs_emis_band:
long_name: VIIRS brightness temperature deviation within CrIS FOV units: K comment: Brightness temperature increase resulting from adding one viirs_emis_rad_sdev to viirs_emis_rad coordinates: lat lon _FillValue: -999.000000
viirs_emis_rad
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_emis_band = 0..4]
atrack:
xtrack:
fov:
viirs_subset:
viirs_emis_band:
long_name: Mean VIIRS emissive band radiance within CrIS FOV units: W/(m2 sr \316\274m) standard_name: toa_outgoing_radiance_per_unit_wavelength coordinates: lat lon _FillValue: -999.000000
viirs_emis_rad_sdev
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_subset = 0..2][viirs_emis_band = 0..4]
atrack:
xtrack:
fov:
viirs_subset:
viirs_emis_band:
long_name: VIIRS emissive band radiance standard deviation within CrIS FOV units: W/(m2 sr \316\274m) coordinates: lat lon _FillValue: -999.000000
cris_rad
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_cris_band = 0..2]
atrack:
xtrack:
fov:
viirs_cris_band:
long_name: CrIS radiance over VIIRS band spectral response units: W/(m2 sr \316\274m) standard_name: toa_outgoing_radiance_per_unit_wavelength coordinates: lat lon _FillValue: -999.000000
cris_bt
: Array of 32 bit Reals [atrack = 0..44][xtrack = 0..29][fov = 0..8][viirs_cris_band = 0..2]
atrack:
xtrack:
fov:
viirs_cris_band:
long_name: CrIS brightness temperature over VIIRS band spectral response units: K comment: Calculated from cris_rad and VIIRS spectral response standard_name: toa_brightness_temperature coordinates: lat lon _FillValue: -999.000000
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