Dataset Information

keywords: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE
Conventions: CF-1.6, ACDD-1.3
history: 2021-05-28,15:18:44,s4pmops,ccast_main ../Jpss1_Cris_L1b/2.11.1/pge//uw_v2.1.3_deploy/l1b/inst_data/FIRfilter.mat /vol2/snppPro/OPS/s4pm/snpp/stations/J1_V2_FW/run_algorithm/RUNNING.RUN_Jpss1_Cris_L1b.2021148083600 /vol2/snppPro/OPS/s4pm/snpp/stations/J1_V2_FW/run_algorithm/RUNNING.RUN_Jpss1_Cris_L1b.2021148083600/l1b_template.nc ./SNDR.J1.CRIS.20210528T0836.m06.g087.L1A.std.v02_11.G.210528135822.nc ./SNDR.J1.CRIS.20210528T0830.m06.g086.L1A.std.v02_11.G.210528135822.nc ./SNDR.J1.CRIS.20210528T0842.m06.g088.L1A.std.v02_11.G.210528135822.nc || 2021-05-28T11:23:33Z s4pmops chirp_cris_main v1.1.1 20210528T0835
source: JPSS-1 CrIS Level-1B v2
processing_level: 1
product_name_type_id: L1_J1
comment:
acknowledgment: Support for this research was provided by NASA.
license: Freely Distributed
standard_name_vocabulary: CF Standard Name Table v28
date_created: 2021-05-28T11:23:33Z
creator_name: Unassigned
creator_email: gsfc-help-disc@lists.nasa.gov
creator_url: http://disc.sci.gsfc.nasa.gov/
institution: Goddard Space Flight Center - National Aeronautics and Space Administration
project: Sounder SIPS
product_name_project: SNDR
publisher_name: Goddard Earth Science Data and Information Services Center
publisher_email: gsfc-help-disc@lists.nasa.gov
publisher_url: http://disc.sci.gsfc.nasa.gov/
geospatial_bounds: POLYGON ((-81.59 -99.24, -69.71 -174.24, -67.43 125.72, -77.56 64.67, -81.59 -99.24))
geospatial_bounds_crs: EPSG:4326
geospatial_lat_min: -89.8244247
geospatial_lat_max: -67.2150421
geospatial_lon_min: 15.0241594
geospatial_lon_max: 5.30257511
time_coverage_start: 2021-05-28T08:36:00Z
time_of_first_valid_obs: 2021-05-28T08:36:00.166972Z
time_coverage_mid: 2021-05-28T08:39:00Z
time_coverage_end: 2021-05-28T08:42:00Z
time_of_last_valid_obs: 2021-05-28T08:42:00.166972Z
time_coverage_duration: P0000-00-00T00:06:00
product_name_duration: m06
creator_type: institution
creator_institution: Goddard Space Flight Center - National Aeronautics and Space Administration
keywords_vocabulary: GCMD:GCMD Keywords
platform: JPSS-1 > Joint Polar Satellite System - 1, SUOMI-NPP > Suomi National Polar-orbiting Partnership, AQUA > Earth Observing System
platform_vocabulary: GCMD:GCMD Keywords
product_name_platform: SS1330
instrument: AIRS > Atmospheric Infrared Sounder, CrIS > Cross-track Infrared Sounder
instrument_vocabulary: GCMD:GCMD Keywords
product_name_instr: CHIRP
product_name_variant: std
product_name_version: v02_48
product_name_producer: G
product_name_extension: nc
granule_number: 87
product_name_granule_number: g087
geospatial_lat_mid: -81.0397949
geospatial_lon_mid: 147.110687
featureType: trajectory
data_structure: trajectory
cdm_data_type: Trajectory
id: 10.5067/WIG2N5C20MRJ
naming_authority: http://dx.doi.org/
identifier_product_doi: 10.5067/WIG2N5C20MRJ
identifier_product_doi_authority: http://dx.doi.org/
algorithm_version: v1.1.1
production_host: Linux ac23-local 3.10.0-1160.24.1.el7.x86_64 #1 SMP Thu Apr 8 19:51:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
format_version: v02.02.07
input_file_names: SNDR.J1.CRIS.20210528T0836.m06.g087.L1B.std.v02_11.G.210528151846.nc leap-seconds.list
input_file_types: CrIS_L1B data
input_file_dates: 2021-5-28 git repo
orbitDirection: SouthPole
day_night_flag: Night
AutomaticQualityFlag: Passed
AutomaticQualityFlagExplanation: 'Passed': all spectra are present and calibrated with no quality issues; 'Suspect': at least one spectrum is missing or calibrated with quality issues; 'Failed': no calibrated spectra; 'Missing': no downlinked data.
qa_pct_data_missing: 0.00000000
qa_pct_data_geo: 100.000000
qa_pct_data_sci_mode: 100.000000
qa_no_data: FALSE
title: Sounder SIPS: Sun Synchronous 13:30 orbit Climate Hyperspectral InfraRed Product (CHIRP): Calibrated Radiances from EOS-Aqua, S-NPP, JPSS-1/NOAA-20
summary: The CHIRP Level 1 product for the 13:30 sun-synchronous orbit consists of calibrated radiance spectra at a common resolution derived from hyperspectral instruments on EOS-Aqua, S-NPP, and JPSS-1/NOAA-20 platforms adjusted to form a continuous climate-quality record.
shortname: SNDR13CHRP1
product_group: l1_chirp
metadata_link: http://disc.sci.gsfc.nasa.gov/
references:
contributor_name: UMBC Atmospheric Spectroscopy Laboratory: Larrabee Strow
contributor_role: CrIS L1B Scientist
wnum_delta_lw: 0.625000000
wnum_delta_mw: 0.833333313
wnum_delta_sw: 1.25000000
product_version: v02.48.00
product_name: SNDR.SS1330.CHIRP.20210528T0836.m06.g087.L1_J1.std.v02_48.G.200528152318.nc
product_name_timestamp: 200528152318
gran_id: 20210528T0836


Variables in this Dataset

obs_id: Array of Strings [obs = 0..12149]
long_name: observation id
coverage_content_type: referenceInformation
description: unique earth view observation identifier.
obs_time_tai93: Array of 64 bit Reals [obs = 0..12149]
valid_range: -2934835217.000000, 3376598410.000000
long_name: earth view FOV midtime
_FillValue: 9.969209968386869e+36
coverage_content_type: referenceInformation
standard_name: time
units: seconds since 1993-01-01 00:00
description: earth view observation midtime for each FOV
AIRS_HDF_name: Time
obs_time_utc: Array of 16 bit Unsigned integers [obs = 0..12149][utc_tuple = 0..7]
long_name: earth view UTC FOV time
coordinates: utc_tuple_lbl
_FillValue: 65535
coverage_content_type: referenceInformation
description: UTC earth view observation time as an array of integers: year, month, day, hour, minute, second, millisec, microsec
lat: Array of 32 bit Reals [obs = 0..12149]
valid_range: -90.0000000, 90.0000000
long_name: latitude
_FillValue: 9.96920997e+36
bounds: lat_bnds
coverage_content_type: referenceInformation
standard_name: latitude
units: degrees_north
description: latitude of FOV center
AIRS_HDF_name: Latitude
lon: Array of 32 bit Reals [obs = 0..12149]
valid_range: -180.000000, 180.000000
long_name: FOV longitude
_FillValue: 9.96920997e+36
bounds: lon_bnds
coverage_content_type: referenceInformation
standard_name: longitude
units: degrees_east
description: longitude of FOV center
AIRS_HDF_name: Longitude
lat_bnds: Array of 32 bit Reals [obs = 0..12149][fov_poly = 0..7]
valid_range: -90.0000000, 90.0000000
long_name: FOV boundary latitudes
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
units: degrees_north
description: latitudes of points forming a polygon around the perimeter of the FOV
lon_bnds: Array of 32 bit Reals [obs = 0..12149][fov_poly = 0..7]
valid_range: -180.000000, 180.000000
long_name: FOV boundary longitudes
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
units: degrees_east
description: longitudes of points forming a polygon around the perimeter of the FOV
land_frac: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 1.00000000
long_name: land fraction
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: land_area_fraction
units: 1
description: land fraction over the FOV
AIRS_HDF_name: landFrac
cell_methods: area: mean (beam-weighted)
surf_alt: Array of 32 bit Reals [obs = 0..12149]
ancillary_variables: surf_alt_sdev
valid_range: -500.000000, 10000.0000
long_name: surface altitude
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: surface_altitude
units: m
description: mean surface altitude wrt earth model over the FOV
AIRS_HDF_name: topog
cell_methods: area: mean (beam-weighted)
surf_alt_sdev: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 10000.0000
long_name: surface altitude standard deviation
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: qualityInformation
units: m
description: standard deviation of surface altitude within the FOV
AIRS_HDF_name: topog_err
cell_methods: area: standard_deviation (beam-weighted)
sun_glint_lat: Array of 32 bit Reals [obs = 0..12149]
valid_range: -90.0000000, 90.0000000
long_name: sun glint latitude
coordinates: subsat_lon subsat_lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: latitude
units: degrees_north
description: sun glint spot latitude at scan_mid_time. Fill for night observations.
AIRS_HDF_name: glintlat
sun_glint_lon: Array of 32 bit Reals [obs = 0..12149]
valid_range: -180.000000, 180.000000
long_name: sun glint longitude
coordinates: subsat_lon subsat_lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: longitude
units: degrees_east
description: sun glint spot longitude at scan_mid_time. Fill for night observations.
AIRS_HDF_name: glintlon
sol_zen: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 180.000000
long_name: solar zenith angle
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: solar_zenith_angle
units: degree
description: solar zenith angle at the center of the FOV
AIRS_HDF_name: solzen
sol_azi: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 360.000000
long_name: solar azimuth angle
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: solar_azimuth_angle
units: degree
description: solar azimuth angle at the center of the FOV (clockwise from North)
AIRS_HDF_name: solazi
sun_glint_dist: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 30000000.0
long_name: sun glint distance
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
units: m
description: Distance from the center of the calculated sun glint spot to the center of the spot. Note that there may not be a glint for cloudy or land cases and in ocean cases the glint can move based on wind conditions. Fill for night observations.
AIRS_HDF_name: sun_glint_distance
view_ang: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 180.000000
long_name: view angle
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: sensor_view_angle
units: degree
description: off nadir pointing angle
AIRS_HDF_name: scanang
sat_zen: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 180.000000
long_name: satellite zenith angle
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: sensor_zenith_angle
units: degree
description: satellite zenith angle at the center of the FOV
AIRS_HDF_name: satzen
sat_azi: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 360.000000
long_name: satellite azimuth angle
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: sensor_azimuth_angle
units: degree
description: satellite azimuth angle at the center of the FOV (clockwise from North)
AIRS_HDF_name: satazi
sat_range: Array of 32 bit Reals [obs = 0..12149]
valid_range: 100000.000, 10000000.0
long_name: satellite range
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
units: m
description: line of sight distance between satellite and FOV center
asc_flag: Array of Bytes [obs = 0..12149]
valid_range: 0, 1
long_name: ascending orbit flag
coordinates: subsat_lon subsat_lat
_FillValue: 255
flag_values: 0, 1
coverage_content_type: referenceInformation
description: ascending orbit flag: 1 if ascending, 0 descending
AIRS_HDF_name: scan_node_type
flag_meanings: descending ascending
subsat_lat: Array of 32 bit Reals [obs = 0..12149]
valid_range: -90.0000000, 90.0000000
long_name: sub-satellite latitude
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: latitude
units: degrees_north
description: sub-satellite latitude at scan_mid_time
AIRS_HDF_name: sat_lat
subsat_lon: Array of 32 bit Reals [obs = 0..12149]
valid_range: -180.000000, 180.000000
long_name: sub-satellite longitude
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: longitude
units: degrees_east
description: sub-satellite longitude at scan_mid_time
AIRS_HDF_name: sat_lon
scan_mid_time: Array of 64 bit Reals [obs = 0..12149]
valid_range: -2934835217.000000, 3376598410.000000
long_name: midscan TAI93
coordinates: subsat_lon subsat_lat
_FillValue: 9.969209968386869e+36
coverage_content_type: referenceInformation
standard_name: time
units: seconds since 1993-01-01 00:00
description: TAI93 at middle of earth scene scans
AIRS_HDF_name: nadirTAI
sat_alt: Array of 32 bit Reals [obs = 0..12149]
valid_range: 100000.000, 1000000.00
long_name: satellite altitude
coordinates: subsat_lon subsat_lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
standard_name: altitude
units: m
description: satellite altitude with respect to earth model at scan_mid_time
AIRS_HDF_name: satheight
local_solar_time: Array of 32 bit Reals [obs = 0..12149]
valid_range: 0.00000000, 24.0000000
long_name: local apparent solar time
coordinates: lon lat
_FillValue: 9.96920997e+36
coverage_content_type: referenceInformation
units: hours
description: local apparent solar time in hours from midnight
utc_tuple_lbl: Array of Strings [utc_tuple = 0..7]
long_name: UTC date/time parts
coverage_content_type: auxiliaryInformation
description: names of the elements of UTC when it is expressed as an array of integers year,month,day,hour,minute,second,millisecond,microsecond
rad: Array of 32 bit Reals [obs = 0..12149][wnum = 0..1678]
units: mW/(m2 sr cm-1)
ancillary_variables: rad_qc synth_frac chan_qc
long_name: spectral radiance
standard_name: toa_outgoing_radiance_per_unit_wavenumber
coordinates: lon lat
description: spectral radiance
_FillValue: 9.96920997e+36
coverage_content_type: physicalMeasurement
rad_qc: Array of 16 bit Integers [obs = 0..12149]
valid_range: 0, 2
long_name: rad QC
standard_name: toa_outgoing_radiance_per_unit_wavenumber status_flag
coordinates: lon lat
description: rad QC flag
_FillValue: -1
coverage_content_type: qualityInformation
flag_meanings: Best Good Do_Not_Use
flag_values: 0, 1, 2
synth_frac: Grid
units: 1
valid_range: 0.00000000, 1.00000000
long_name: Fraction synthesized
description: File mean fraction of signal that is attributed to synthesized AIRS Level-1C values
_FillValue: 9.96920997e+36
coverage_content_type: qualityInformation
synth_frac: Array of 32 bit Reals [wnum = 0..1678]
units: 1
valid_range: 0.00000000, 1.00000000
long_name: Fraction synthesized
description: File mean fraction of signal that is attributed to synthesized AIRS Level-1C values
_FillValue: 9.96920997e+36
coverage_content_type: qualityInformation
wnum: Array of 64 bit Reals [wnum = 0..1678]
units: cm-1
valid_range: 640.0000000000000, 2700.000000000000
long_name: wavenumber
standard_name: sensor_band_central_radiation_wavenumber
description: wavenumber
_FillValue: 9.969209968386869e+36
coverage_content_type: auxiliaryInformation
chan_qc: Grid
valid_range: 0, 2
long_name: Channel QC
standard_name: toa_outgoing_radiance_per_unit_wavenumber status_flag
description: Quality of each channel.
_FillValue: -1
coverage_content_type: qualityInformation
flag_meanings: Best Good Do_Not_Use
flag_values: 0, 1, 2
chan_qc: Array of 16 bit Integers [wnum = 0..1678]
valid_range: 0, 2
long_name: Channel QC
standard_name: toa_outgoing_radiance_per_unit_wavenumber status_flag
description: Quality of each channel.
_FillValue: -1
coverage_content_type: qualityInformation
flag_meanings: Best Good Do_Not_Use
flag_values: 0, 1, 2
wnum: Array of 64 bit Reals [wnum = 0..1678]
units: cm-1
valid_range: 640.0000000000000, 2700.000000000000
long_name: wavenumber
standard_name: sensor_band_central_radiation_wavenumber
description: wavenumber
_FillValue: 9.969209968386869e+36
coverage_content_type: auxiliaryInformation
nedn: Array of 32 bit Reals [fov = 0..8][wnum = 0..1678]
units: mW/(m2 sr cm-1)
long_name: noise equivalent differential radiance
description: noise equivalent differential radiance
_FillValue: 9.96920997e+36
coverage_content_type: qualityInformation
atrack: Array of Bytes [obs = 0..12149]
units: 1
valid_range: 1, 45
long_name: Along-track FOR index
coordinates: lon lat
axis: Y
description: Along-track index of Field Of Regard
_FillValue: 255
coverage_content_type: auxiliaryInformation
xtrack: Array of Bytes [obs = 0..12149]
units: 1
valid_range: 1, 30
long_name: Cross-track FOR index
coordinates: lon lat
axis: X
description: Cross-track index of Field Of Regard
_FillValue: 255
coverage_content_type: auxiliaryInformation
fov_num: Array of Bytes [obs = 0..12149]
units: 1
valid_range: 1, 9
long_name: Field Of View number
coordinates: lon lat
description: Field Of View number in FOR
_FillValue: 255
coverage_content_type: auxiliaryInformation
airs_atrack: Array of Bytes [obs = 0..12149]
units: 1
valid_range: 1, 135
long_name: Along-track AIRS FOV index
coordinates: lon lat
axis: Y
description: AIRS-like along-track index of Field Of View
_FillValue: 255
coverage_content_type: auxiliaryInformation
airs_xtrack: Array of Bytes [obs = 0..12149]
units: 1
valid_range: 1, 90
long_name: Cross-track AIRS FOV index
coordinates: lon lat
axis: X
description: AIRS-like cross-track index of Field Of View
_FillValue: 255
coverage_content_type: auxiliaryInformation
wnum: Array of 64 bit Reals [wnum = 0..1678]
units: cm-1
valid_range: 640.0000000000000, 2700.000000000000
long_name: wavenumber
standard_name: sensor_band_central_radiation_wavenumber
description: wavenumber
_FillValue: 9.969209968386869e+36
coverage_content_type: auxiliaryInformation