gov.noaa.nodc:0071180 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2025-05-28T13:43:08Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA Daily 25km Global Optimally Interpolated Sea Surface Temperature (OISST) in situ and AVHRR analysis supplemented with AVHRR Pathfinder Version 5.0 climatological SST for inland and coastal pixels, from 1981-09-01 to 2010-12-31 (NCEI Accession 0071180) 2011-06-29 publication 2011-06-29 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0071180 NCEI Archive Management System 0071180 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Kenneth S. Casey NOAA National Centers for Environmental Information (NCEI) kenneth.casey@noaa.gov resourceProvider US National Oceanographic Data Center (NODC) https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information resourceProvider US National Climatic Data Center (NCDC) https://www.ncdc.noaa.gov HTTPS US National Climatic Data Center (NCDC) website Institution web page information contributor US National Oceanographic Data Center (NODC) https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information contributor University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information contributor Casey, Kenneth S. NOAA National Centers for Environmental Information (NCEI) kenneth.casey@noaa.gov author US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author tableDigital This dataset contains the daily 25km global Optimally Interpolated Sea Surface Temperature (OISST) in situ and AVHRR analysis, supplemented with AVHRR Pathfinder Version 5.0 climatological SST for inland and coastal pixels, for 1981-09-01 through 2010-12-31. These SST data files were used during the processing of AVHRR Pathfinder Version 5.2 (PFV52) in the following ways: 1. As a first guess SST, used in the calculation of the PFV52 SST value from the brightness temperatures measured by the AVHRR instrument. 2. As a reference SST, against which the final PFV52 SST value is checked. If the difference between these two SST values is too great, the PFV52 SST is assigned a lower quality flag value. This dataset is available to the public for a wide variety of uses including scientific research and analysis. completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0071180 Graphic not available. PNG 0071180 NCEI ACCESSION NUMBER 2011-04-01 publication SEA SURFACE TEMPERATURE theme NODC DATA TYPES THESAURUS AVHRR-2 AVHRR-3 instrument NODC INSTRUMENT TYPES THESAURUS physical satellite data theme NODC OBSERVATION TYPES THESAURUS NOAA-11 NOAA-14 NOAA-16 NOAA-17 NOAA-18 NOAA-7 NOAA-9 platform NODC PLATFORM NAMES THESAURUS University of Miami Rosenstiel School of Marine and Atmospheric Science US National Climatic Data Center US National Oceanographic Data Center dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS US National Oceanographic Data Center dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Pathfinder project NODC PROJECT NAMES THESAURUS World-Wide Distribution place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NOAA/NASA PATHFINDER > NOAA/NASA Pathfinder Program project Global Change Master Directory (GCMD) Project Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian AVHRR-2 > Advanced Very High Resolution Radiometer-2 AVHRR-3 > Advanced Very High Resolution Radiometer-3 instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NOAA-11 > National Oceanic & Atmospheric Administration-11 NOAA-14 > National Oceanic & Atmospheric Administration-14 NOAA-16 > National Oceanic & Atmospheric Administration-16 NOAA-17 > National Oceanic & Atmospheric Administration-17 NOAA-18 > National Oceanic & Atmospheric Administration-18 NOAA-7 > National Oceanic & Atmospheric Administration-7 NOAA-9 > National Oceanic & Atmospheric Administration-9 platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NOAA-11 (ICES code: 3101, 1988-2004) NOAA-14 (ICES code: 3277, 1994-2007) NOAA-16 (ICES code: 33J9, 2000-2014) NOAA-17 (ICES code: 33ZS, 2002-2013) NOAA-18 (ICES code: 33WM, 2005-2016) NOAA-7 (ICES code: 33V2, 1981-1986) NOAA-9 (ICES code: 33OO, 1984-1998) platform ICES/SeaDataNet Ship Codes GEOGRAPHIC REGION > GLOBAL OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian accessLevel: public otherRestrictions Cite as: Casey, Kenneth S.; US National Oceanographic Data Center (2011). NOAA Daily 25km Global Optimally Interpolated Sea Surface Temperature (OISST) in situ and AVHRR analysis supplemented with AVHRR Pathfinder Version 5.0 climatological SST for inland and coastal pixels, from 1981-09-01 to 2010-12-31 (NCEI Accession 0071180). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0071180. Accessed [date]. 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. eng; USA utf8 environment oceans -180 180 -90 90 1981-09-01 2010-12-31 Description of processing steps performed to generate these files: 1. The 4km AVHRR Pathfinder Version 5.0 daily harmonic climatology is binned down to 25km spatial resolution. If any single 4km pixel in the bin is water, the entire 25km pixel is classified as water. 2. A 25km land mask* is laid on top of the 25km binned climatology to identify water pixels with missing SST values. 3. A daily mean sea ice climatology, generated from the 10km EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSISAF) Global Daily Sea Ice Concentration Reprocessing Data Set (NCEI accession 0068294), is binned to 25km spatial resolution. If any single 10km pixel in the bin is water, the entire 25km pixel is classified as water. 4. The 25km ice climatology field is filled with values of 100% sea ice cover over the permanent ice shelves in Antarctica. These permanent ice shelves are defined by the difference between the 25km OSISAF land mask and the 25km Pathfinder Version 5.2 land mask below -60 degrees latitude. 5. For pixels with no existing daily SST climatology value, AND a sea ice climatology value greater than zero, an SST value of -1.8 degrees Celsius is assigned. 6. Remaining water pixels with no SST values are assigned annual mean SST values derived from the daily harmonic climatology. 7. Any remaining water pixels are assigned latitudinal mean SST values derived from the daily harmonic climatology. The result is an effectively gap-free daily SST climatology. 8. The original NOAA Daily 25km Global Optimally Interpolated Sea Surface Temperature (OISST) analysis is read from the NODC archive. Any pixel that is missing an SST value in the OISST but has an SST value in the gap-free daily climatology is assigned the value from the daily climatology. 9. This new gap-filled OISST field is written out to netCDF to be ingested by SeaDAS during Pathfinder Version 5.2 processing. *Provenance of 25km Pathfinder Version 5.2 land mask: a) Land pixels were determined by rasterizing to 4km the Global Self-consistent Hierarchical High-resolution Shoreline (GSHHS) Database from the NOAA National Geophysical Data Center using a 50% area threshold. Inland water bodies (rivers and lakes) were determined by rasterizing to 4km the US World Wildlife Fund's Global Lakes and Wetlands Database using a 50 percent area threshold. b) This 4km land mask was binned to 25km spatial resolution. If any single 4km pixel in the bin was water, the entire 25km pixel was classified as water. Filename convention for the files in this accession: [avhrr-only]-[v2]-[pfv52].[YYYYMMDD].[nc.gz] avhrr-only: AVHRR-only version of the NOAA Daily OISST was used, rather than the version containing both AVHRR and AMSR data. v2: Version 2 of the NOAA Daily OISST pfv52: AVHRR Pathfinder Version 5.2 YYYYMMDD: Year, month and day of data nc.gz: gzipped netCDF file Example filename: avhrr-only-v2-pfv52.20080701.nc.gz About AVHRR Pathfinder Version 5.2: The AVHRR Pathfinder Version 5.2 (PFV52) sea surface temperature product was created in partnership with the University of Miami with partial support from the NOAA Climate Data Record Program. PFV52 was computed using an entirely modernized system, based on SeaDAS and incorporating several key changes in preparation for the future Version 6 (PFV6) data set. These changes include the use of an entirely new land mask, a modified grid, and the inclusion of sea ice and wind speed auxiliary data to support the use of the SST data. Importantly, the PFV52 data are provided in netCDF-4 (classic model, with internal compression and chunking) and are nearly 100% compliant with the GHRSST Data Specification Version 2.0 for L3C products. The PFV52 data deviate from that standard only in that the sses_bias, sses_standard_deviation, and sst_dtime variables are empty and the aerosol_dynamic_indicator variable is not yet present. NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Originator data format 9852.724 https://www.ncei.noaa.gov/archive/accession/0071180 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/71180 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/71180 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0034/0071180/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0071180 v1.1 was published. 2011-06-29T01:02:55Z NCEI Accession 0071180 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0071180/1.1 HTTPS NCEI Accession 0071180 v1.1 published 2011-06-29T01:02:55Z download 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 Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian AVHRR-2 AVHRR-2 Advanced Very High Resolution Radiometer-2 The AVHRR-2 is a multi purpose imaging instrument used for global measurement of cloud cover, sea surface temperature, ice, snow and vegetation cover and characteristics. This instrument was initially carried on NOAA-7 (launched June 1981) and was last flown on NOAA-14 which was decommissioned in 2005. This 5-channel radiometer covering 2 visible and 3 thermal infrared between 0.63 and 12.0 micrometers, has an instantaneous footprint of 1.1 km at the sub satellite point. Additional Information: https://nwpsaf.eu/deliverables/aapp/avhrr_2.html AVHRR-3 AVHRR-3 Advanced Very High Resolution Radiometer-3 The AVHRR-3 is a six channel scanning radiometer providing 3 solar channels in the visible-near infrared region and 3 thermal infrared channels. The AVHRR-3 has two one-micrometer wide channels between 10.3 and 12.5 micrometers. This latest version of AVHRR was first carried on NOAA-15 launched in May 1998 and subsequently in all current NOAA and MetOp platforms. Measuring the same view, this array of diverse wavelengths, after processing, permits multi spectral analysis for more precisely defining hydrologic, oceanographic, and meteorological parameters. Comparison of data from two channels is often used to observe features or measure various environmental parameters. The three channels operating entirely within the infrared band are used to detect the heat radiation from and hence, the temperature of land, water, sea surfaces, and the clouds above them. Additional Information: http://www.ncdc.noaa.gov/oa/pod-guide/ncdc/docs/klm/html/c3/sec3-1.htm NOAA-11 https://www.wmo-sat.info/oscar/satellites/view/333 Instruments: AVHRR/2 et al NOAA-14 https://www.wmo-sat.info/oscar/satellites/view/336 Instruments: AVHRR/2 et al NOAA-16 Updated information from ICES for the platform NOAA-16 from United States. Name NOAA-16 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Native Name Synonyms Call Sign MMSI IMO Pennant Title Commissioned Date 2000 Decommissioned Date 2014 Notes Polar-orbiting environmental satellite launched September 2000. The NODC has archived AVHRR SST data collected from this platform as part of the Pathfinder project. Instruments: AVHRR/3 et al Information Source (URL) https://www.wmo-sat.info/oscar/satellites/view/338 Confirmed by NOAA on 2018-07-17. NOAA-17 Updated information from ICES for the platform NOAA-17 from United States. Name NOAA-17 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Native Name Synonyms Call Sign MMSI IMO Pennant Title Commissioned Date 2002 Decommissioned Date 2013 Notes Polar-orbiting environmental satellite launched June 2002. The NODC has archived AVHRR SST data collected from this platform as part of the Pathfinder project. Instruments: AVHRR/3 et al Information source (URL) https://www.wmo-sat.info/oscar/satellites/view/339 Confirmed by NOAA on 2018-07-17. NOAA-18 Updated information from ICES for the platform NOAA-18 from United States. Name NOAA-18 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Native Name Synonyms Call Sign MMSI IMO Pennant Title Commissioned Date 2005 Decommissioned Date 2016 Notes Polar-orbiting environmental satellite launched May 2005 as NOAA-N. The NODC has archived AVHRR SST data collected from this platform as part of the Pathfinder project. Instruments: AVHRR/3 et al Information source (URL) https://www.wmo-sat.info/oscar/satellites/view/340 Confirmed by NOAA on 2018-07-17. NOAA-7 Updated information from ICES for the platform NOAA-7 from UNITED STATES. Name NOAA-7 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Commissioned Date 1981-06-23 Decommissioned Date 1986-06-07 Notes Selected global data available from NOAA. Significant contribution to Space weather and operational meteorology. Information source (URL) https://www.wmo-sat.info/oscar/satellites/view/329 All known Instruments flying on NOAA-7 Acronym - Full name Argos - Argos Data Collection System AVHRR/2 - Advanced Very High Resolution Radiometer / 2 HIRS/2 - High-resolution Infra Red Sounder / 2 MSU - Microwave Sounding Unit SSU - Stratospheric Sounding Unit SEM/MEPED - SEM / Medium energy proton detector SEM/TED - SEM / Total Energy Detector Submitted to ICES on 2018-07-17. Confirmed by NOAA on 2018-08-08. NOAA-9 Updated information from ICES for the platform NOAA-9 from UNITED STATES. Name NOAA-9 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Confirmed by NOAA on 2018-08-08. Commissioned Date 1984-12-12 Decommissioned Date 1998-02-13 Notes Selected global operational meteorology data available from NOAA. Significant contribution to Atmospheric chemistry and Space weather. All known Instruments flying on NOAA-9 Acronym - Full name Argos - Argos Data Collection System AVHRR/2 - Advanced Very High Resolution Radiometer / 2 ERBE - Earth Radiation Budget Experiment HIRS/2 - High-resolution Infra Red Sounder / 2 MSU - Microwave Sounding Unit S&RSAT - Search & Rescue Satellite-Aided Tracking System SBUV/2 - Solar Backscatter Ultraviolet / 2 SSU - Stratospheric Sounding Unit SEM/MEPED - SEM / Medium energy proton detector SEM/TED - SEM / Total Energy Detector Information source (URL) https://www.wmo-sat.info/oscar/satellites/view/331 Submitted to ICES on 2018-07-17. Confirmed by NOAA on 2018-08-08.