Attributes { viirs_subset { String long_name "Subset of CrIS-collocated VIIRS pixels included"; String comment "All pixels, Clear, Cloudy"; } viirs_refl_band { String long_name "VIIRS reflective band"; String comment "M01, M02, M03, M04, M05, M06, M07, M08, M09, M10, M11"; } viirs_emis_band { String long_name "VIIRS emissive band"; String comment "M12, M13, M14, M15, M16"; } viirs_cris_band { String long_name "VIIRS band with CrIS spectral overlap"; String comment "M13, M15, M16"; } obs_time_tai93 { String long_name "CrIS observation time"; String comment "TAI93 format; epoch is 1993-01-01 0Z UTC; count includes leap seconds"; String units "seconds since 1993-01-01 00:00:27"; Float64 _FillValue -999.0000000000000; } lat { String long_name "CrIS FOV center latitude"; String units "degrees_north"; Float32 valid_range -90.0000000, 90.0000000; String standard_name "latitude"; Float32 _FillValue -999.000000; } lon { String long_name "CrIS FOV center longitude"; String units "degrees_east"; Float32 valid_range -180.000000, 180.000000; String standard_name "longitude"; Float32 _FillValue -999.000000; } sat_zen { String long_name "Zenith angle to satellite from CrIS FOV center"; String units "degrees"; Float32 valid_range 0.00000000, 90.0000000; String standard_name "sensor_zenith_angle"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } sat_azi { String long_name "Azimuth angle to satellite from CrIS FOV center"; String units "degrees"; Float32 valid_range 0.00000000, 360.000000; String comment "North is 0, east is 90"; String standard_name "sensor_azimuth_angle"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } sol_zen { String long_name "Zenith angle to sun from CrIS FOV center"; String units "degrees"; Float32 valid_range 0.00000000, 180.000000; String standard_name "solar_zenith_angle"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } sol_azi { String long_name "Azimuth angle to sun from CrIS FOV center"; String units "degrees"; Float32 valid_range 0.00000000, 360.000000; String comment "North is 0, east is 90"; String standard_name "solar_azimuth_angle"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_count { String long_name "Number of VIIRS pixels within CrIS FOV"; String coordinates "lat lon"; Int16 _FillValue -999; } viirs_cloud_frac { String long_name "Fraction of VIIRS pixels within CrIS FOV flagged as cloudy"; Float32 valid_range 0.00000000, 1.00000000; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_thin_cirrus_frac_refl { String long_name "Fraction of tested VIIRS pixels within CrIS FOV flagged with thin cirrus via 1.38\316\274m test"; Float32 valid_range 0.00000000, 1.00000000; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_thin_cirrus_frac_emis { String long_name "Fraction of tested VIIRS pixels within CrIS FOV flagged with thin cirrus via 11\316\274m/12\316\274m test"; Float32 valid_range 0.00000000, 1.00000000; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_thin_cirrus_test_count_refl { String long_name "Number of VIIRS pixels within CrIS FOV tested for thin cirrus via 1.38\316\274m test"; String coordinates "lat lon"; Int16 _FillValue -999; } viirs_thin_cirrus_test_count_emis { String long_name "Number of VIIRS pixels within CrIS FOV tested for thin cirrus via 11\316\274m/12\316\274m test"; String coordinates "lat lon"; Int16 _FillValue -999; } viirs_daytime_frac { String long_name "Fraction of VIIRS pixels within CrIS FOV that are in daylight"; String comment "Daytime defined as in VIIRS cloud mask, solar zenith angle less than 85 degrees"; Float32 valid_range 0.00000000, 1.00000000; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_refl { String long_name "Mean VIIRS reflectance within CrIS FOV"; String units "1"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_refl_sdev { String long_name "VIIRS reflectance standard deviation within CrIS FOV"; String units "1"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_refl_rad { String long_name "Mean VIIRS reflective band radiance within CrIS FOV"; String units "W/(m2 sr \316\274m)"; String standard_name "toa_outgoing_radiance_per_unit_wavelength"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_refl_rad_sdev { String long_name "VIIRS reflective band radiance standard deviation within CrIS FOV"; String units "W/(m2 sr \316\274m)"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_bt { String long_name "VIIRS brightness temperature within CrIS FOV"; String units "K"; String standard_name "toa_brightness_temperature"; String comment "Calculated from viirs_emis_rad and VIIRS spectral response"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_bt_sdev { String long_name "VIIRS brightness temperature deviation within CrIS FOV"; String units "K"; String comment "Brightness temperature increase resulting from adding one viirs_emis_rad_sdev to viirs_emis_rad"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_emis_rad { String long_name "Mean VIIRS emissive band radiance within CrIS FOV"; String units "W/(m2 sr \316\274m)"; String standard_name "toa_outgoing_radiance_per_unit_wavelength"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } viirs_emis_rad_sdev { String long_name "VIIRS emissive band radiance standard deviation within CrIS FOV"; String units "W/(m2 sr \316\274m)"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } cris_rad { String long_name "CrIS radiance over VIIRS band spectral response"; String units "W/(m2 sr \316\274m)"; String standard_name "toa_outgoing_radiance_per_unit_wavelength"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } cris_bt { String long_name "CrIS brightness temperature over VIIRS band spectral response"; String units "K"; String comment "Calculated from cris_rad and VIIRS spectral response"; String standard_name "toa_brightness_temperature"; String coordinates "lat lon"; Float32 _FillValue -999.000000; } NC_GLOBAL { String title "S-NPP CrIS IMG: Collocated VIIRS level 1 / cloud mask statistical summary"; String project "NASA CrIS L1B Science and Software Team"; String institution "Space Science & Engineering Center, University of Wisconsin - Madison"; String processing_level "2"; String Conventions "CF-1.7, ACDD-1.3"; String platform "SUOMI-NPP > Suomi National Polar-orbiting Partnership"; String platform_vocabulary "GCMD:GCMD Keywords"; String time_coverage_start "2014-12-20T04:42:00Z"; String time_coverage_end "2014-12-20T04:48:00Z"; Float32 geospatial_lat_min 10.2467937; Float32 geospatial_lat_max 34.6728172; Float32 geospatial_lon_min 114.208595; Float32 geospatial_lon_max 140.773529; String geospatial_bounds "POLYGON ((10.36 121.16, 13.68 140.47, 34.54 136.87, 30.77 114.55, 10.36 121.16))"; String orbitDirection "Ascending"; String inputs "CLDMSK_L2_VIIRS_SNPP.A2014354.0436.001.2019071114322.nc, CLDMSK_L2_VIIRS_SNPP.A2014354.0442.001.2019071114318.nc, CLDMSK_L2_VIIRS_SNPP.A2014354.0448.001.2019071114325.nc, SNDR.SNPP.CRIS.20141220T0442.m06.g048.L1B_NSR.std.v2_0_15.T.180208001932.nc, VNP02MOD.A2014354.0436.001.2017317005405.uwssec.nc, VNP02MOD.A2014354.0442.001.2017317005410.uwssec.nc, VNP02MOD.A2014354.0448.001.2017317005407.uwssec.nc, VNP03MOD.A2014354.0436.001.2017317005700.uwssec.nc, VNP03MOD.A2014354.0442.001.2017317005702.uwssec.nc, VNP03MOD.A2014354.0448.001.2017317005702.uwssec.nc"; String creator_name "NASA Suomi-NPP Atmosphere SIPS"; String creator_url "https://sips.ssec.wisc.edu/"; String creator_email "sips.admin@ssec.wisc.edu"; String publisher_name "Goddard Earth Science Data and Information Services Center"; String publisher_url "http://disc.sci.gsfc.nasa.gov/"; String publisher_email "gsfc-help-disc@lists.nasa.gov"; String license "Freely Distributed"; String product_version "2.0"; String date_created "2020-07-11T14:13:36Z"; String source "cris_l1 2.0.15; viirs_l1 2.0.2; CLDMSK_L2_VIIRS 1.0"; String algorithm_version "crisimg 0.1.13; collopak 0.1.78"; String short_name "SNDRSNCrISL1BIMG"; String id "10.5067/NC505NHFIHCY"; String naming_authority "http://dx.doi.org/"; } }