Dataset Information

keywords: ATMOSPHERE > ATMOSPHERIC RADIATION > OUTGOING LONGWAVE RADIATION
Conventions: CF-1.6, ACDD-1.3
history: Created on 2019-11-16T17:24:29Z by L3 monthly spectral OLR, University of Michigan
source: AIRS instrument telemetry
processing_level: 3
product_name_type_id: L3_SpecOLR
acknowledgment: Support for this research was provided by NASA.
license: Freely Distributed
standard_name_vocabulary: CF Standard Name Table v28
date_created: 2019-11-16T17:24:29UTC
creator_name: Xianglei Huang and Xiuhong Chen
creator_email: xianglei@umich.edu; xiuchen@umich.edu
creator_url: http://www-personal.umich.edu/~xianglei/
institution: University of Michigan
project: AIRS
product_name_project: AIRS
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 ((-90.0 -180.0, 90.0 -180.0, 90.0 180.0, -90.0 180.0, -90.0 -180.0))
geospatial_bounds_crs: EPSG:4326
geospatial_lat_min: -90.000000000000000
geospatial_lat_max: 90.000000000000000
geospatial_lon_min: -180.00000000000000
geospatial_lon_max: 180.00000000000000
time_coverage_start: 2006-07-01T00:00:00
time_of_first_valid_obs: 2006-07-01T00:00:00
time_coverage_mid: 2006-07-15T00:00:00
time_coverage_end: 2006-07-31T23:59:59.999999
time_of_last_valid_obs: 2006-07-31T23:59:59.999999
time_coverage_duration: P0000-01-00T00:00:00
product_name_duration: M01
creator_type: University
creator_institution: University of Michigan
product_version: v01.00.00
keywords_vocabulary: GCMD:GCMD Keywords
platform: AQUA > Earth Observing System
platform_vocabulary: GCMD:GCMD Keywords
product_name_platform: AQUA
instrument: AIRS > Atmospheric Infrared Sounder
instrument_vocabulary: GCMD:GCMD Keywords
product_name_instr: AIRS
product_name: AIRS.AQUA.AIRS.20060701.M01.L3_SpecOLR.std.v06_01_00.M.191116172429.nc
product_name_variant: std
product_name_version: v06_01_00
product_name_producer: M
product_name_timestamp: 191116172429
product_name_extension: nc
gran_id: 20060701
featureType: point
data_structure: grid
cdm_data_type: Grid
id: 10.5067/5P7KQ31XI7XJ
naming_authority: http://dx.doi.org/
identifier_product_doi: 10.5067/5P7KQ31XI7XJ
identifier_product_doi_authority: http://dx.doi.org/
algorithm_version: L3 SpecOLR: v1.0.0
production_host: forrestal.engin.umich.edu
format_version: v02.01.04
AutomaticQualityFlag: Passed
qa_no_data: FALSE
title: Level-3 Spectral OLR AIRS
summary: The Level-3 spectral Outgoing Longwave Radiation (OLR) monthly product includes retrieved spectral OLR using the Huang algorithm for one month. The main product is OLR in 10-cm^-1 bands.
shortname: AIRSIL3MSOLR
metadata_link: http://disc.sci.gsfc.nasa.gov/
references: Huang, X. L., W. Z. Yang, N. G. Loeb, and V. Ramaswamy, 2008: Spectrally resolved fluxes derived from collocated AIRS and CERES measurements and their application in model evaluation: 1. clear sky over the tropical oceans. J. of Geophys. Res. Atmos, 113, D09110, doi: 10.1029/2007JD009219.\\nHuang, X.L., N.G. Loeb, and W.Z. Yang, 2010: Spectrally resolved fluxes derived from collocated AIRS and CERES measurements and their application in model evaluation: 2. cloudy sky and band-by-band cloud radiative forcing over the tropical oceans, J. of Geophys. Res. Atmos, 115, D21101, doi:10.1029/2010JD013932.\\nChen, X.H., X.L. Huang, N. G. Loeb, H. L. Wei, 2013: Comparisons of clear-sky outgoing far-IR flux inferred from satellite observations and computed from three most recent reanalysis products, J. Climate, 26(2), 478-494, doi:10.1175/JCLI-D-12-00212.1.\\nHuang, X. L., X.H. Chen, G. L. Potter, L. Oreopoulos, J. N.S. Cole, D.M. Lee, N. G. Loeb, 2014: A global climatology of outgoing longwave spectral cloud radiative effect and associated effective cloud properties, J. Climate, 27, 7475-7492, doi:10.1175/JCLI-D-13-00663.1.\\nChen, X. H., X. L. Huang, 2016: Deriving clear-sky longwave spectral flux from space-borne hyperspectral radiance measurements: a case study with AIRS observations, Atmospheric Measurement Techniques, 9, 6013-6023, doi:10.5194/amt-9-6013-2016.


Variables in this Dataset

obs_time_tai93_bnds: Array of 64 bit Reals [orbit_pass = 0..1][bnds_1d = 0..1]
units: seconds since 1993-01-01 00:00
valid_range: -2934835217.0000000, 3376598410.0000000
coordinates: orbit_pass
description: Nominal start and end time for observations included in grid
_FillValue: 9.9692099683868690e+36
coverage_content_type: referenceInformation
origname: obs_time_tai93_bnds
fullnamepath: /obs_time_tai93_bnds
olr: Array of 32 bit Reals [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: W / m2
ancillary_variables: olr_nobs
valid_range: 1.000000000, 2000.000000
long_name: outgoing longwave radiation
standard_name: toa_outgoing_longwave_flux
coordinates: orbit_pass lon lat
description: outgoing longwave radiation flux integrated over 2 to 2800 cm-1
AIRS_name: OLR
_FillValue: 9.969209968e+36
cell_methods: area: mean
coverage_content_type: physicalMeasurement
origname: olr
fullnamepath: /olr
obs_time_utc: Array of 16 bit Unsigned integers [orbit_pass = 0..1][utc_tuple = 0..7]
long_name: orbit pass grid midtime
coordinates: orbit_pass utc_tuple_lbl
description: Nominal midtime for observations included in grid as an array of integers: year, month, day, hour, minute, second, millisec, microsec
_FillValue: 65535
coverage_content_type: referenceInformation
origname: obs_time_utc
fullnamepath: /obs_time_utc
obs_time_tai93: Array of 64 bit Reals [orbit_pass = 0..1]
units: seconds since 1993-01-01 00:00
valid_range: -2934835217.0000000, 3376598410.0000000
long_name: orbit pass grid midtime
standard_name: time
coordinates: orbit_pass
description: Nominal midtime for observations included in grid
_FillValue: 9.9692099683868690e+36
coverage_content_type: referenceInformation
bounds: obs_time_tai93_bnds
origname: obs_time_tai93
fullnamepath: /obs_time_tai93
lat_bnds: Array of 32 bit Reals [lat = 0..89][bnds_1d = 0..1]
units: degrees_north
valid_range: -90.00000000, 90.00000000
long_name: Degrees longitude boundaries
description: min and max degrees for each longitude grid cell
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
origname: lat_bnds
fullnamepath: /lat_bnds
utc_tuple_lbl: Array of Strings [utc_tuple = 0..7]
long_name: UTC date/time parts
description: names of the elements of UTC when it is expressed as an array of integers year,month,day,hour,minute,second,millisecond,microsecond
coverage_content_type: auxiliaryInformation
origname: utc_tuple_lbl
fullnamepath: /utc_tuple_lbl
nobs_olr_clr_nobs: Array of 32 bit Integers [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: 1
long_name: olr_clr num obs
standard_name: toa_outgoing_longwave_flux_assuming_clear_sky number_of_observations
coordinates: orbit_pass lon lat
description: olr_clr number of observations
_FillValue: -2147483647
cell_methods: area: sum where clear_sky
coverage_content_type: qualityInformation
origname: olr_clr_nobs
fullnamepath: /nobs/olr_clr_nobs
nobs_olr_spectral_nobs: Array of 32 bit Integers [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: 1
long_name: olr_spectral num obs
standard_name: toa_outgoing_longwave_flux number_of_observations
coordinates: orbit_pass lon lat
description: olr_spectral number of observations
_FillValue: -2147483647
cell_methods: area: sum
coverage_content_type: qualityInformation
origname: olr_spectral_nobs
fullnamepath: /nobs/olr_spectral_nobs
nobs_olr_clr_spectral_nobs: Array of 32 bit Integers [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: 1
long_name: olr_clr_spectral num obs
standard_name: toa_outgoing_longwave_flux number_of_observations
coordinates: orbit_pass lon lat
description: olr_clr_spectral number of observations
_FillValue: -2147483647
cell_methods: area: sum where clear_sky
coverage_content_type: qualityInformation
origname: olr_clr_spectral_nobs
fullnamepath: /nobs/olr_clr_spectral_nobs
nobs_olr_nobs: Array of 32 bit Integers [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: 1
long_name: olr num obs
standard_name: toa_outgoing_longwave_flux number_of_observations
coordinates: orbit_pass lon lat
description: olr number of observations
_FillValue: -2147483647
cell_methods: area: sum
coverage_content_type: qualityInformation
origname: olr_nobs
fullnamepath: /nobs/olr_nobs
nobs_nobs_max: Array of 32 bit Integers [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: 1
long_name: max obs
standard_name: number_of_observations
coordinates: orbit_pass lon lat
description: Maximum number of observations including those for which no value was retrieved
AIRS_name: TotalCounts
_FillValue: -2147483647
cell_methods: area: sum
coverage_content_type: qualityInformation
origname: nobs_max
fullnamepath: /nobs/nobs_max
olr_clr: Array of 32 bit Reals [orbit_pass = 0..1][lat = 0..89][lon = 0..179]
units: W / m2
ancillary_variables: olr_clr_nobs
valid_range: 1.000000000, 2000.000000
long_name: clear outgoing longwave radiation
standard_name: toa_outgoing_longwave_flux_assuming_clear_sky
coordinates: orbit_pass lon lat
description: outgoing longwave radiation flux integrated over 2 to 2800 cm-1 where clear-sky
AIRS_name: ClrOLR
_FillValue: 9.969209968e+36
cell_methods: area: mean where clear_sky
coverage_content_type: physicalMeasurement
origname: olr_clr
fullnamepath: /olr_clr
olr_spectral: Array of 32 bit Reals [orbit_pass = 0..1][wnum = 0..198][lat = 0..89][lon = 0..179]
units: W / m2
ancillary_variables: olr_spectral_nobs
valid_range: 0.001000000047, 2000.000000
long_name: outgoing longwave radiation
standard_name: toa_outgoing_longwave_flux
coordinates: orbit_pass lon lat
description: All-sky outgoing longwave radiation flux per 10 cm-1
_FillValue: 9.969209968e+36
cell_methods: area: mean
coverage_content_type: physicalMeasurement
origname: olr_spectral
fullnamepath: /olr_spectral
olr_clr_spectral: Array of 32 bit Reals [orbit_pass = 0..1][wnum = 0..198][lat = 0..89][lon = 0..179]
units: W / m2
ancillary_variables: olr_clr_spectral_nobs
valid_range: 0.001000000047, 2000.000000
long_name: outgoing longwave radiation where clear
standard_name: toa_outgoing_longwave_flux_assuming_clear_sky
coordinates: orbit_pass lon lat
description: Outgoing longwave radiation flux per 10 cm-1 where clear-sky
_FillValue: 9.969209968e+36
cell_methods: area: mean where clear_sky
coverage_content_type: physicalMeasurement
origname: olr_clr_spectral
fullnamepath: /olr_clr_spectral
lon_bnds: Array of 32 bit Reals [lon = 0..179][bnds_1d = 0..1]
units: degrees_east
valid_range: -180.0000000, 180.0000000
long_name: Degrees longitude boundaries
description: min and max degrees for each longitude grid cell
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
origname: lon_bnds
fullnamepath: /lon_bnds
wnum_bnds: Array of 32 bit Reals [wnum = 0..198][bnds_1d = 0..1]
units: cm-1
long_name: OLR wavenumber band boundaries
description: min and max wavenumbers of each OLR band
_FillValue: 9.969209968e+36
origname: wnum_bnds
fullnamepath: /wnum_bnds
bnds_1d: Array of 32 bit Reals [bnds_1d = 0..1]
lat: Array of 32 bit Reals [lat = 0..89]
units: degrees_north
valid_range: -90.00000000, 90.00000000
long_name: Degrees latitude
standard_name: latitude
axis: Y
description: Degrees latitude
AIRS_name: YDim
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
bounds: lat_bnds
origname: lat
fullnamepath: /lat
lon: Array of 32 bit Reals [lon = 0..179]
units: degrees_east
valid_range: -180.0000000, 180.0000000
long_name: Degrees longitude
standard_name: longitude
axis: X
description: Degrees longitude
AIRS_name: XDim
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
bounds: lon_bnds
origname: lon
fullnamepath: /lon
orbit_pass: Array of 32 bit Reals [orbit_pass = 0..1]
units: hours
valid_range: 0.000000000, 24.00000000
long_name: Equatorial crossing time
description: Nominal solar time when the spacecraft passes over the equator. Orbit pass bounds are defined by closest approach of the spacecraft to the poles.
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
origname: orbit_pass
fullnamepath: /orbit_pass
utc_tuple: Array of 32 bit Reals [utc_tuple = 0..7]
wnum: Array of 32 bit Reals [wnum = 0..198]
units: cm-1
long_name: OLR wavenumber band centers
description: OLR wavenumber band centers
_FillValue: 9.969209968e+36
coverage_content_type: coordinate
bounds: olr_wnum_bnds
origname: wnum
fullnamepath: /wnum