NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1 (Version Superseded)
Outgoing Longwave Radiation - Monthly
Image of Monthly Mean OLR.
*Note: This dataset version has been superseded by a newer version.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) of monthly mean High Resolution Infrared Radiation Sounder (HIRS) 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. Grid dimensions are 144 x 72, with 10,368 total grids over the globe. The data set was derived using a multispectral HIRS OLR algorithm on the HIRS level 1b dataset from the TIROS-N to NOAA-19 series satellites with inter-satellite and radiance calibration adjustments employing an empirical diurnal model for the monthly mean derivation. 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.
- Cite dataset when used as a source: Hai-Tien Lee and NOAA CDR Program (2011): NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5222RQP [access date].
| Distribution Formats |
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| Ordering Instructions |
Contact NCEI for other distribution options and instructions. |
| Distributor |
NOAA National Centers for Environmental Information
ncei.info@noaa.gov
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| Dataset Point of Contact |
NOAA Climate Data Record Program Office
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
+1 (828) 271-4800
monthly_olr_contacts@noaa.gov
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| Time Period |
1979-01-01 to 2018-07-17 |
| Spatial Bounding Box Coordinates |
West: -180.0
East: 180.0
South: -90.0
North: 90.0
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| Spatial Coverage Map |
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| Dataset Information |
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| General Documentation |
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| Processing Documents |
- CDR Source Code
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CDR Source Code (download)
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.
- CDR Data Flow Diagram
- Climate Algorithm Theoretical Basis Document
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| Associated Resources |
- NCEI Dataset Landing Page for the Current Version
- Data Stewardship Maturity Report for NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1
- Data Stewardship Maturity Report for NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1
- NOAA Climate Data Record (CDR) of Daily Outgoing Longwave Radiation (OLR), Version 1.2
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| Publication Dates |
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| Edition |
Version 2.2-1 |
| Data Presentation Form |
Digital image
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| Dataset Progress Status |
Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Superseded - replaced by new |
| Data Update Frequency |
Not planned |
| Purpose |
The purpose of the High Resolution Infrared Radiation Sounder (HIRS) Outgoing Longwave Radiation (OLR) Climate Data Record is to provide a continuous and long-term OLR data record, and to provide a climate data record for global change studies. |
| Use Limitations |
- *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.*
- For a complete description of use limiataions see the Algorithm Theoretical Basis Document.
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| Dataset Citation |
- Cite dataset when used as a source: Hai-Tien Lee and NOAA CDR Program (2011): NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5222RQP [access date].
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| Cited Authors |
- Lee, Hai-Tien
UMD/ESSIC > Earth System Science Interdisciplinary Center, University of Maryland
- NOAA CDR Program
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| Principal Investigators |
- Lee, Hai-Tien
UMD/ESSIC > Earth System Science Interdisciplinary Center, University of Maryland
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| Collaborators |
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| Publishers |
- NOAA National Centers for Environmental Information
- DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
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| Theme keywords |
Global Change Master Directory (GCMD) Science Keywords- Earth Science > Atmosphere > Atmospheric Radiaiton > Outgoing Longwave Radiation
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| Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
- 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
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| Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
- 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
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| Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords
- HIRS-2 > High Resolution Infra-red Sounder/2
- HIRS-3 > High Resolution Infra-red Sounder/3
- HIRS-4 > High Resolution Infra-red Sounder/4
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| Place keywords |
Global Change Master Directory (GCMD) Location Keywords- Geographic Region > Global
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| Project keywords |
Global Change Master Directory (GCMD) Project Keywords
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| Use Constraints |
- Cite dataset when used as a source: Hai-Tien Lee and NOAA CDR Program (2011): NOAA Climate Data Record (CDR) of Monthly Outgoing Longwave Radiation (OLR), Version 2.2-1. [indicate subset used]. NOAA National Climatic Data Center. doi:10.7289/V5222RQP [access date].
- 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.
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| Access Constraints |
- 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.
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| Fees |
- 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.
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| Lineage information for: repository |
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| Processing Steps |
- 2015-04-22T00:00:00 - 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.
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| Acquisition Information (collection) |
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| Instrument |
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-2 > High Resolution Infra-red Sounder/2
- > HIRS-3 > High Resolution Infra-red Sounder/3
- > HIRS-3 > High Resolution Infra-red Sounder/3
- > HIRS-3 > High Resolution Infra-red Sounder/3
- > HIRS-4 > High Resolution Infra-red Sounder/4
- > HIRS-4 > High Resolution Infra-red Sounder/4
- > HIRS-4 > High Resolution Infra-red Sounder/4
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| Platform |
- 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
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| Operation |
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Last Modified: 2023-09-18
For questions about the information on this page, please email:
ncei.info@noaa.gov
