gov.noaa.ncdc:C01561 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact 2025-11-25T14:52:37 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.7 Outgoing Longwave Radiation - Monthly 2018-07-17 publication Version 2.7 doi:10.7289/V5W37TKD NCEI DSI 3690_03 gov.noaa.ncdc:C01561 Access Identifier outgoing-longwave-radiation-monthly NOAA National Centers for Environmental Information publisher DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce User Engagement and Services Branch +1 (828) 271-4800 +1 (828) 271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov 8:00 - 6:00 Eastern publisher Lee, Hai-Tien UMD/ESSIC > Earth System Science Interdisciplinary Center, University of Maryland Physical Scientist +1 301-405-0494 5825 University Research Court, (Suite 4001) College Park MD 20740 USA lee@umd.edu principalInvestigator Lee, Hai-Tien UMD/ESSIC > Earth System Science Interdisciplinary Center, University of Maryland Physical Scientist +1 301-405-0494 5825 University Research Court, (Suite 4001) College Park MD 20740 USA lee@umd.edu author NOAA CDR Program collaborator NOAA CDR Program author imageDigital This Climate Data Record (CDR) of monthly mean Outgoing Longwave Radiation (OLR) flux at the top of the atmosphere in all sky conditions is on a 2.5 degree x 2.5 degree grid with global coverage from January 1979 to the present and continuing monthly. It is derived based on the multispectral High Resolution Infrared Radiation Sounder (HIRS) OLR algorithm and other methodologies. This dataset was created from HIRS OLR retrievals from TIROS-N to NOAA-19, and MetOp-A/B satellites with inter-satellite calibration adjustments and employed the empirical diurnal model for monthly mean derivation. This version 2.7 is an upgrade from the previous version 2.2-1. The main change is in the OLR regression models and the inter-satellite calibration. The version 2.7 OLR regression models improved the retrieval consistency between variant versions of HIRS instruments, HIRS-2, 2i, 3 and 4, and in turn, the accuracy of inter-satellite calibration is significantly improved, thus eliminating the spurious trends presented in the version 2.2-1 data. 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. This dataset provides a high quality Climate Data Record (CDR) of Outgoing Longwave Radiation (OLR). The amount of terrestrial radiation that is released into space and, by extension, the amount of cloud cover and water vapor that intercepts that radiation in the atmosphere defines the Monthly OLR CDR. Uses include conducting studies/operation in global change monitoring, earth radiation budget, precipitation, tropical dynamics and monsoon diagnostics/forecast and tropical expansion. National Centers for Environmental Information NOAA Climate Data Record Program Office +1 (828) 271-4800 +1 (828) 271-4328 151 Patton Avenue Veach-Baley Federal Building, Room 447 Asheville NC 28801-5001 USA monthly_olr_contacts@noaa.gov https://www.ncei.noaa.gov/products/climate-data-records HTTPS Web Browser CDR Program Contacts Contact information for the CDR Program. information 8:00 - 6:00 Eastern pointOfContact monthly https://www.ncei.noaa.gov/pub/data/metadata/images/C01561_OutgoingLongwaveRadiationMonthly.jpg Image of Monthly Mean OLR. JPEG Earth Science > Atmosphere > Atmospheric Radiation > Outgoing Longwave Radiation theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher 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 platform Global Change Master Directory (GCMD) Platform Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher HIRS > High Resolution Infra-red Sounder HIRS-2 > High Resolution Infra-red Sounder/2 HIRS-3 > High Resolution Infra-red Sounder/3 HIRS-4 > High Resolution Infra-red Sounder/4 instrument Global Change Master Directory (GCMD) Instrument Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Geographic Region > Global place Global Change Master Directory (GCMD) Location Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher NOAA OneStop Project project Global Change Master Directory (GCMD) Project Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher For a complete description of use limiataions for this CDR, see the Algorithm Theoretical Basis Document. otherRestrictions Cite dataset when used as a source: Hai-Tien Lee and NOAA CDR Program (2018): NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.7. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.7289/V5W37TKD [access date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1 2011-08-26 publication Version 2.2-1 National Centers for Environmental Information publisher https://doi.org/10.7289/V5222RQP HTTPS Landing Page NCEI landing page for the superseded Version 2.2-1 Superseded dataset landing page. This version should not be used as the primary research dataset. It may be appropriate to use for reproducing studies that used this earlier version. information crossReference project NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2 2014-07-03 publication Version 1.2 National Centers for Environmental Information publisher https://doi.org/10.7289/V5SJ1HH2 HTTPS Web Browser NCEI landing page for Outgoing Longwave Radiation - Daily Related dataset landing page with general information and access links for that dataset. information crossReference project grid eng; USA climatologyMeteorologyAtmosphere -180.0 180.0 -90.0 90.0 1979-01-01 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. NetCDF 4 https://doi.org/10.7289/V5W37TKD HTTPS Landing Page NCEI Dataset Landing Page Landing page for the dataset. information https://www.ncdc.noaa.gov/cdr/atmospheric/outgoing-longwave-radiation-monthly HTTPS Information NOAA CDR page Access to the published CDR, source code, and documentation. information https://www.ncei.noaa.gov/data/outgoing-longwave-radiation-monthly/access/ HTTPS Download NCEI Direct Download Direct download for dataset files. download https://www.ncei.noaa.gov/thredds/catalog/cdr/olr-monthly/catalog.html HTTPS THREDDS NCEI THREDDS Catalog THREDDS Data Service for this dataset. download https://registry.opendata.aws/noaa-cdr-atmospheric/ HTTPS Information Registry of Open Data on AWS Information on AWS data access. information Region: us-east-1 https://noaa-cdr-outgoing-longwave-radiation-monthly-pds.s3.amazonaws.com/index.html HTTPS Download AWS S3 Explorer (Region: us-east-1) Browse view to explore the S3 bucket. download Region: us-east https://microsoft.github.io/AIforEarthDataSets/data/noaa-cdr.html HTTPS Information Azure Landing Page (Region: us-east) Information on Microsoft Azure data access. information dataset The data were produced by the University of Maryland and are archived at the NOAA National Centers for Environmental Information. For a complete description of the processing steps, see the Algorithm Theoretical Basis Document and Data Flow Diagram. UMD > University of Maryland processor CDR Version 2.7 CDR Source Code 2018 publication National Centers for Environmental Information NOAA Climate Data Record Program Office +1 (828) 271-4800 +1 (828) 271-4328 151 Patton Avenue Veach-Baley Federal Building, Room 447 Asheville NC 28801-5001 USA cdr_program.ncdc@noaa.gov 8:00 - 6:00 Eastern publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Outgoing%20Longwave%20Radiation%20-%20Monthly/SourceCode_01B-06.tar.gz HTTPS Web Browser CDR Source Code This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment. download CDR Data Flow Diagram 2018 publication CDRP-DIA (01B-06) National Centers for Environmental Information NOAA Climate Data Record Program Office +1 (828) 271-4800 +1 (828) 271-4328 151 Patton Avenue Veach-Baley Federal Building, Room 447 Asheville NC 28801-5001 USA cdr_program.ncdc@noaa.gov 8:00 - 6:00 Eastern publisher https://www.ncei.noaa.gov/pub/data/sds/cdr/CDRs/Outgoing%20Longwave%20Radiation%20-%20Monthly/DataFlowDiagram_01B-06.pdf HTTPS Web Browser CDR Data Flow Diagram Flowcharts for the CDR product. information NOAA High-resolution Infrared Radiation Sounder (HIRS) Level 1b dataset OLR Regression Coefficients Inter-Satellite Bias Corrections Instrument Ambient Temperature Prediction Coefficients OLR Diurnal Model Coefficients repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Bulk metadata change applied on 2023-07-06. See version control repository history for metadata change details. > HIRS > High Resolution Infra-red Sounder > 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 MetOp-B > Meteorological Operational Polar Satellite - B