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NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2 (Version Superseded)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: September 09, 2026 at 10:21 PM | Dataset Last Updated: July 03, 2014 at 12:00 AM
*Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* This Climate Data Record (CDR) contains the daily mean Outgoing Longwave Radiation (OLR) time series in global 1 degree x 1 degree equal-angle gridded maps spanning from January 1979 to August 2025. The OLR is estimated directly from the HIRS radiance observations for all sky conditions. The observations from imagers onboard international operational geostationary satellites are incorporated to improve the sampling of the OLR diurnal variation. The Daily OLR CDR is at its initial version 1.2. The data file format is netCDF-4 with CF metadata, and it is accompanied by algorithm documentation, data flow diagram and source code for the NOAA CDR Program.

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  • Global Change Master Directory (GCMD) Keywords

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Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation Geographic Region > Global Land NOAA OneStop Project HIRS-2 > High Resolution Infra-red Sounder/2 HIRS-3 > High Resolution Infra-red Sounder/3 HIRS-4 > High Resolution Infra-red Sounder/4 TIROS-N > Television Infrared Observation Satellite - N NOAA-6 > National Oceanic & Atmospheric Administration - 6

Complete Metadata
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accessLevel non-public
accrualPeriodicity R/P1D
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describedByType application/octet-stream
description *Note: This dataset version has been superseded by a newer version. It is highly recommended that users access the current version. Users should only use this version for special cases, such as reproducing studies that used this version.* This Climate Data Record (CDR) contains the daily mean Outgoing Longwave Radiation (OLR) time series in global 1 degree x 1 degree equal-angle gridded maps spanning from January 1979 to August 2025. The OLR is estimated directly from the HIRS radiance observations for all sky conditions. The observations from imagers onboard international operational geostationary satellites are incorporated to improve the sampling of the OLR diurnal variation. The Daily OLR CDR is at its initial version 1.2. The data file format is netCDF-4 with CF metadata, and it is accompanied by algorithm documentation, data flow diagram and source code for the NOAA CDR Program.
distribution 
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/aim/iso/xml/C00875.xml
issued 2014-07-03T00:00:00.000+00:00
keyword 
[
  "Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation",
  "Geographic Region > Global Land",
  "NOAA OneStop Project",
  "HIRS-2 > High Resolution Infra-red Sounder/2",
  "HIRS-3 > High Resolution Infra-red Sounder/3",
  "HIRS-4 > High Resolution Infra-red Sounder/4",
  "TIROS-N > Television Infrared Observation Satellite - N",
  "NOAA-6 > National Oceanic & Atmospheric Administration - 6",
  "NOAA-7 > National Oceanic & Atmospheric Administration - 7",
  "NOAA-8 > National Oceanic & Atmospheric Administration - 8",
  "NOAA-9 > National Oceanic & Atmospheric Administration - 9",
  "NOAA-10 > National Oceanic & Atmospheric Administration - 10",
  "NOAA-11 > National Oceanic & Atmospheric Administration - 11",
  "NOAA-12 > National Oceanic & Atmospheric Administration - 12",
  "NOAA-14 > National Oceanic & Atmospheric Administration - 14",
  "NOAA-15 > National Oceanic & Atmospheric Administration - 15",
  "NOAA-16 > National Oceanic & Atmospheric Administration - 16",
  "NOAA-17 > National Oceanic & Atmospheric Administration - 17",
  "NOAA-18 > National Oceanic & Atmospheric Administration - 18",
  "NOAA-19 > National Oceanic & Atmospheric Administration - 19",
  "MetOp-A > Meteorological Operational Polar Satellite - A",
  "DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce"
]
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2014-07-03T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
}
references 
[
  "https://doi.org/10.25921/9pt5-by77",
  "https://doi.org/10.25923/1nfw-yv23",
  "https://doi.org/10.7289/V5222RQP"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 1979-01-01T00:00:00+00:00/2025-08-22T00:00:00+00:00
theme 
[
  "geospatial"
]
title NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2 (Version Superseded)

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