gov.noaa.nodc:AVHRR_Pathfinder-NODC-L3C-v5.2 eng utf8 series 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 2026-03-19T14:31:36Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 3 column 8640 0.0417 row 4320 0.0417 vertical 1 area AVHRR Pathfinder version 5.2 level 3 collated (L3C) global 4km sea surface temperature for 1981-2012 2011-03-08 publication 2021-10-15 revision 2011-03-08 creation International DOI Foundation (IDF) 10.7289/v5wd3xhb NOAA National Centers for Environmental Information gov.noaa.nodc:AVHRR_Pathfinder-NODC-L3C-v5.2 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 Gregg Foti 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 Oceanographic Data Center (NODC) https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information resourceProvider Casey, Kenneth S. US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Evans, Robert H. University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Baringer, Warner University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Kilpatrick, Katherine A. University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Podestá, Guillermo P. University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Walsh, Susan University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Williams, Elizabeth University of Miami, Rosenstiel School of Marine and Atmospheric Science http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information author Brandon, Tess B. US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Byrne, Deirdre A. US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Foti, Gregg US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Li, Yuanjie US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Phillips, Sheri A. US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Zhang, Dexin US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author Zhang, Yongsheng US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author 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 tableDigital The AVHRR Pathfinder Version 5.2 Sea Surface Temperature dataset (PFV52) is a collection of global, twice-daily 4km sea surface temperature data produced in a partnership by the NOAA National Oceanographic Data Center and the University of Miami's Rosenstiel School of Marine and Atmospheric Science. PFV52 was computed from data from the AVHRR instruments on board NOAA's polar orbiting satellite series using an entirely modernized system based on SeaDAS. This system incorporates several key changes from Versions 5.0 and 5.1 of Pathfinder, including the use of an entirely new land mask, a modified grid, and the inclusion of sea ice, wind speed, and aerosol ancillary data to support the use of the SST data. Importantly, 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. These data deviate from that standard only in that sses_bias, sses_standard_deviation, and sst_dtime variables are empty. PFV52 data were collected through the operational periods of the NOAA-7 through NOAA-19 Polar Operational Environmental Satellites (POES), and are available back to 1981. Data for all years are available as separate NODC accessions. To provide sea surface temperature data and related parameters with good temporal consistency, high accuracy and spatial resolution, and for archive and distribution through the NOAA National Centers for Environmental Information (NCEI). This SST data collection is intended primarily for climate related applications and studies and is being established to help form the basis for a Climate Data Record for SST. This project was supported in part by a grant from the NOAA Climate Data Record (CDR) Program for satellites. 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:AVHRR_Pathfinder-NODC-L3C-v5.2 Preview graphic PNG 0071185 0073577 0073578 0073579 0073580 0073581 0073582 0073583 0073584 0073585 0073586 0073587 0073588 0073589 0073590 0073591 0073592 0073593 0073594 0073595 0073596 0073597 0073598 0073599 0073600 0073601 0073602 0073603 0073604 0073605 0099811 0111842 NCEI ACCESSION NUMBER 2013-05-07 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-19 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 Group for High Resolution Sea Surface Temperature (GHRSST) 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 GHRSST > Group for High Resolution Sea Surface Temperature NOAA OneStop Project 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 latitude longitude sea_ice_area_fraction sea_surface_skin_temperature time wind_speed theme NetCDF Climate and Forecast (CF) Metadata Convention Standard Names 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-19 > National Oceanic & Atmospheric Administration-19 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-19 (ICES code: 33Y9, 2009-2016) 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.; Evans, Robert H.; Baringer, Warner; Kilpatrick, Katherine A.; Podestá, Guillermo P.; Walsh, Susan; Williams, Elizabeth; Brandon, Tess B.; Byrne, Deirdre A.; Foti, Gregg; Li, Yuanjie; Phillips, Sheri A.; Zhang, Dexin; Zhang, Yongsheng (2011). AVHRR Pathfinder version 5.2 level 3 collated (L3C) global 4km sea surface temperature for 1981-2012. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5wd3xhb. Accessed [date]. Please also cite: Casey, K.S., T.B. Brandon, P. Cornillon, and R. Evans (2010). "The Past, Present and Future of the AVHRR Pathfinder SST Program", in Oceanography from Space: Revisited, eds. V. Barale, J.F.R. Gower, and L. Alberotanza, Springer. https://doi.org/10.1007/978-90-481-8681-5_16 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. otherRestrictions Please acknowledge the use of these data with the following statement: These data were provided by GHRSST and the US National Oceanographic Data Center. Pathfinder Sea Surface Temperature Climate Data Record (CDR) 2016 publication https://www.ncei.noaa.gov/products/climate-data-records/pathfinder-sea-surface-temperature HTTPS https://www.ncei.noaa.gov/products/climate-data-records/pathfinder-sea-surface-temperature CDR documentation information documentDigital crossReference program AVHRR Pathfinder Sea Surface Temperature (SST) 2018 publication https://www.ncei.noaa.gov/products/avhrr-pathfinder-sst HTTPS https://www.ncei.noaa.gov/products/avhrr-pathfinder-sst Dataset documentation information documentDigital crossReference collection Casey, K. S., Brandon, T. B., Cornillon, P., & Evans, R. (2010). The Past, Present, and Future of the AVHRR Pathfinder SST Program. Oceanography from Space, 273–287. https://doi.org/10.1007/978-90-481-8681-5_16 2010 publication International DOI Foundation (IDF) https://doi.org/10.1007/978-90-481-8681-5_16 https://doi.org/10.1007/978-90-481-8681-5_16 HTTPS https://doi.org/10.1007/978-90-481-8681-5_16 chapter in book information Casey, Kenneth S. author Brandon, Tess B. author Cornillon, Peter author Evans, Robert author Springer Netherlands publisher documentDigital Oceanography from Space ISBN 9789048186808, ISBN 9789048186815, pp. 273-287 crossReference sciencePaper Kilpatrick, K. A., Podestá, G. P., & Evans, R. (2001). Overview of the NOAA/NASA advanced very high resolution radiometer Pathfinder algorithm for sea surface temperature and associated matchup database. Journal of Geophysical Research: Oceans, 106(C5), 9179–9197. https://doi.org/10.1029/1999jc000065 2001-05-15 publication International DOI Foundation (IDF) https://doi.org/10.1029/1999jc000065 https://doi.org/10.1029/1999jc000065 HTTPS https://doi.org/10.1029/1999jc000065 related journal article information Kilpatrick, K. A. author Podestá, G. P. author Evans, R. author American Geophysical Union (AGU) publisher documentDigital J. Geophys. Res. 106(C5) ISSN 0148-0227, pp. 9179-9197 crossReference study Group for High Resolution Sea Surface Temperature (GHRSST) Long Term Stewardship and Reanalysis Facility (LTSRF) 2007-04-10 publication https://www.ncei.noaa.gov/access/ghrsst-long-term-stewardship-and-reanalysis-facility/ HTTPS https://www.ncei.noaa.gov/access/ghrsst-long-term-stewardship-and-reanalysis-facility/ archive website information crossReference project University of Miami, Rosenstiel School of Marine and Atmospheric Science (RSMAS); NOAA National Centers for Environmental Information; US National Oceanographic Data Center (2020). Documentation for the AVHRR Pathfinder global 4km sea surface temperature (SST) data products (NCEI Accession 0207879). NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0207879. 2020-01-30 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0207879 https://www.ncei.noaa.gov/archive/accession/0207879 HTTPS https://www.ncei.noaa.gov/archive/accession/0207879 Documentation information University of Miami, Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.miami.edu/ HTTP University of Miami (UM) website Institution web page information author NOAA National Centers for Environmental Information author US National Oceanographic Data Center https://www.nodc.noaa.gov/ HTTPS US National Oceanographic Data Center (NODC) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference program grid eng; USA utf8 environment oceans climatologyMeteorologyAtmosphere Global Ocean -180 180 -90 90 1981-09-01 2012-12-31 The purpose of this dataset is to provide sea surface temperature data and related parameters with good temporal consistency, high accuracy and spatial resolution, and for archive and distribution through the NOAA National Oceanographic Data Center (NODC). This SST data collection is intended primarily for climate related applications and studies and is produced with partial support from the NOAA Climate Data Record Program. The Pathfinder Version 5.2 dataset follows the international format, content and metadata standard defined by the Group for High Resolution Sea Surface Temperature (GHRSST) in the GHRSST Data Specification Version 2.0 (GDS2.0). These data deviate from that standard only in that sses_bias, sses_standard_deviation, and sst_dtime variables are empty. The GDS2.0 Technical Specifications document can be downloaded from the GHRSST Project Office at https://www.ghrsst.org/documents/q/category/gds-documents/operational/. SSTs in months near the summer (June) solstice and winter (December) solstice are often incorrect above 50 degrees latitude, due to improper splitting of the mixed night and day granules due to a code error in the NASA SeaDAS package used to create daily PFSST 5.2 L3C (collated) data and MODISV5 products. Given that evidence of climate change is happening most rapidly in these latitudes it is important that the user is aware of the possible erroneous SST values in the Pathfinder products above 50 degrees latitude. Please use a more up-to-date version of the Pathfinder product. The entire Pathfinder Version 5.2 collection is available in separate yearly accessions: 1981 - https://www.ncei.noaa.gov/archive/accession/0071185 1982 - https://www.ncei.noaa.gov/archive/accession/0073577 1983 - https://www.ncei.noaa.gov/archive/accession/0073578 1984 - https://www.ncei.noaa.gov/archive/accession/0073579 1985 - https://www.ncei.noaa.gov/archive/accession/0073580 1986 - https://www.ncei.noaa.gov/archive/accession/0073581 1987 - https://www.ncei.noaa.gov/archive/accession/0073582 1988 - https://www.ncei.noaa.gov/archive/accession/0073583 1989 - https://www.ncei.noaa.gov/archive/accession/0073584 1990 - https://www.ncei.noaa.gov/archive/accession/0073585 1991 - https://www.ncei.noaa.gov/archive/accession/0073586 1992 - https://www.ncei.noaa.gov/archive/accession/0073587 1993 - https://www.ncei.noaa.gov/archive/accession/0073588 1994 - https://www.ncei.noaa.gov/archive/accession/0073589 1995 - https://www.ncei.noaa.gov/archive/accession/0073590 1996 - https://www.ncei.noaa.gov/archive/accession/0073591 1997 - https://www.ncei.noaa.gov/archive/accession/0073592 1998 - https://www.ncei.noaa.gov/archive/accession/0073593 1999 - https://www.ncei.noaa.gov/archive/accession/0073594 2000 - https://www.ncei.noaa.gov/archive/accession/0073595 2001 - https://www.ncei.noaa.gov/archive/accession/0073596 2002 - https://www.ncei.noaa.gov/archive/accession/0073597 2003 - https://www.ncei.noaa.gov/archive/accession/0073598 2004 - https://www.ncei.noaa.gov/archive/accession/0073599 2005 - https://www.ncei.noaa.gov/archive/accession/0073600 2006 - https://www.ncei.noaa.gov/archive/accession/0073601 2007 - https://www.ncei.noaa.gov/archive/accession/0073602 2008 - https://www.ncei.noaa.gov/archive/accession/0073603 2009 - https://www.ncei.noaa.gov/archive/accession/0073604 2010 - https://www.ncei.noaa.gov/archive/accession/0073605 2011 - https://www.ncei.noaa.gov/archive/accession/0099811 2012 - https://www.ncei.noaa.gov/archive/accession/0111842 sea_surface_temperature int16 NOAA Climate Data Record of sea surface skin temperature 0.01 273.15 sst_dtime int32 time difference from reference time 1.0 0 sses_bias int8 SSES bias estimate 0.02 0 sses_standard_deviation int8 SSES standard deviation 0.02 2.54 dt_analysis int8 Deviation from last SST analysis 0.1 0 aerosol_dynamic_indicator int8 aerosol optical thickness 1.0 0 adi_dtime_from_sst int32 time difference of aerosol dynamic indicator from SST 1.0 0 wind_speed int8 10m wind speed 1.0 0 sea_ice_fraction int8 sea ice fraction 0.01 0 quality_level int8 SST measurement quality 5 1 pathfinder_quality_level int8 Pathfinder SST quality flag 7 0 l2p_flags int16 L2P flags time int32 reference time lat single latitude 90 -90 lon single longitude 180 -180 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. netCDF netCDF-4 626654.052 ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/pathfinder/Version5.2/ 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 https://www.ncei.noaa.gov/thredds-ocean/catalog/pathfinder/Version5.2/catalog.html THREDDS Web browsers can browse THREDDS Data Servers and specialized THREDDS software can enable more sophisticated data access and visualizations. THREDDS These data are available through a variety of services via a THREDDS (Thematic Real-time Environmental Distributed Data Services) Data Server (TDS). Depending on the dataset, the TDS can provide WMS, WCS, DAP, HTTP, and other data access and metadata services as well. For more information on the TDS, see http://www.unidata.ucar.edu/software/thredds/current/tds/. download https://www.ncei.noaa.gov/data/oceans/pathfinder/Version5.2/ HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download https://www.ncei.noaa.gov/products/avhrr-pathfinder-sst HTTPS Web browser 4 km AVHRR Pathfinder Project Navigate directly to the URL for a descriptive web page. information https://doi.org/10.7289/v5wd3xhb HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information series FGDC Attribute Accuracy Report Quality indicators are provided for each data file within the quality_level, pathfinder_quality_level, and dt_analysis variables. FGDC Logical Consistency Report Files are run against the program (algorithm) MD5 to verify data integrity which generates a code, called an MD5 checksum. After files are transferred from one place to another, the program can be run on the file again and a new code generated. The old MD5 checksum code should be identical to the new MD5 checksum code. If not, the file was somehow corrupted during transfer (see original MD5 documentation at http://www.isi.edu/in-notes/rfc1321.txt) FGDC Completeness Report The SST data are nearly complete in the sense that a value is available for nearly every pixel, with the exception of some areas and times where some of the input low-level AVHRR data were missing from the archive. However, after application of the quality flag parameters, the SST fields have extensive gaps due to clouds and other factors which limit the quality of the observed SST. Additional masking information is stored in the l2p_flags variable, which contains bits encoded for the presence of land, sea ice, lakes, and rivers. These data were collected through the operational periods of the NOAA-7 through NOAA-19 Polar Operational Environmental Satellite (POES). A table listing which satellites were used in the generation of Pathfinder V5.0 data for specific dates is available online at: https://www.nodc.noaa.gov/sog/pathfinder4km/userguide.html. FGDC Horizontal Positional Accuracy Report The major sources of error in geo-locating AVHRR data are (a) drift in the spacecraft clock (which causes errors in the estimated along-track position), and (b) uncertainty errors in spacecraft and sensor attitude. (a) Clock Correction: To minimize error in the along track position estimated by the orbital model, a satellite clock correction factor is applied to the time code imbedded in each piece. The method used to determine these clock correction factors is presented below. The clock aboard a given satellite drifts continually at a relatively constant rate (e.g., for NOAA-14, ~9msday-1) compared to the reference clock on Earth. Because of this drift, the NOAA/NESDIS Satellite Operation Control Center periodically sends a command to the satellite to reset the on-board clock to a new baseline thereby eliminating the accumulation of a large time offset error between the Earth and satellite clocks.To correct for clock drift between these resets, correction factors were determined from a database of satellite clock time and Earth time offsets collected at the RSMAS High Resolution Picture Transmission (HRPT) receiving station. During HRPT transmission, both the satellite clock (used to create the embedded time code in each piece) and the Earth clock are simultaneously available. The clock correction bias was determined by (1) visual examination of the Earth/satellite clock differences collected in the database to locate the precise magnitude and timing of clock resets performed by the Satellite Operation Control Center and (2) recorded time differences between the identified reset periods were then filtered to remove spurious noise, and regressed against the corresponding satellite time to determine the clock drift correction. These drift corrections were then applied to all data time-stamped during a given reset period. Refer to Sea Surface Temperature Global Area Coverage (GAC) Processing Appendix A: Calibration and Navigation Correction Factors for a list of clock offsets for each NOAA spacecraft (http://www.rsmas.miami.edu/groups/rrsl/pathfinder/Processing/proc_app_a.html).(b) Attitude Corrections - After clock correction, a nominal attitude correction is then applied to minimize the uncertainty in regard to the direction in which the spacecraft is pointing. The nominal attitude correction applied was determined by averaging the absolute attitude of the spacecraft over many geographic locations and times along the orbital track. The method used to determine the absolute attitude of the spacecraft involves matching a digital coastal outline to a given image and recording the amount of pitch, yaw, and roll required to make the outline and land coincide. This method has the advantage that it can be performed over small geographical distances and is similar to other techniques which rely on widely separated geographical control points to anchor the navigation. The resultant navigation information, output by the SECTOR procedure for each piece, provides the mapping parameters needed to convert between the satellite perspective of pixel and scan line, and Earth-based latitude and longitude coordinates. Refer to Sea Surface Temperature Global Area Coverage (GAC) Processing Appendix A: Calibration and Navigation Correction Factors for attitude correction factors for each NOAA spacecraft (http://www.rsmas.miami.edu/groups/rrsl/pathfinder/Processing/proc_app_a.html). FGDC Vertical Positional Accuracy Report series Pathfinder Version 5.2 data are produced from Level 1b AVHRR Global Area Coverage (GAC) data using code based on the SeaDAS v6.1 processing environment. The output of this process is a collection of twice-daily, global Level 3 data files in HDF4 format. The process requires several important pieces of information, which are categorized by the following four overall steps in the Pathfinder processing system (steps A-D): A. Ingestion, calibration, and navigation of Global Area Coverage (GAC) data. Sub-steps: a. Calibrate and convert AVHRR digital counts for channels 1 through 5 to radiances - i. Obtain AVHRR channels 1 through 5 radiometer count data; ii. Channels 1 and 2 require pre-launch calibration coefficients for linear counts-to-radiance conversion, followed by a correction for temporal changes using sensor decay rate data and then a correction for inter-satellite differences using inter-satellite standardization data to the NOAA-9 reference, both of which use Libyan desert target area data; iii. Channels 3, 4, and 5 require both the pre-launch calibration data and onboard blackbody (space view and sensor base plate) data for non-linear counts-to-radiance conversion; b. Navigation, Clock, and Attitude Corrections; i. Satellite clock corrections need Earth time offset data based on RSMAS High-Resolution Picture Transmission data; ii. Attitude corrections are made using coastline comparison data; iii. At this point, navigated, calibrated albedos/brightness temperatures are available for all five channels. Note that channels 1-2 are not used in the Pathfinder SST algorithm, and channel 3 is used only in assignment of a quality indicator (see step B.d.i.). B. SST Calculation. Sub-steps: a. Channel 4 and 5 brightness temperatures are converted to SST in degrees C using the Pathfinder algorithm, which requires a set of monthly coefficients; b. These coefficients are derived using the Pathfinder Buoy Matchup Database. This is a set of in situ buoy SST observations and collocated AVHRR data; c. In addition, a first-guess SST field is needed by the algorithm. This first-guess field is the Reynolds Optimum Interpolation ¼-Degree Daily SST Analysis version 2 (DOISSTv2) product, with inland values populated from the AVHRR Pathfinder Version 5.0/5.1 daily climatological SST. (For more information on this reference field see https://accession.nodc.noaa.gov/0071185). Note: Pathfinder Version 5.0 used the Reynolds Weekly Global Optimally Interpolated SST Version 2 (OISSTv2); d. Quality Flag Assignment - i. A Channel 3, 4, and 5 brightness temperature test is performed. These data are already available from step A.a.iii; ii. The viewing angle is evaluated using a satellite zenith angle check; iii. A reference field comparison check is made against the Reynolds DOISSTv2 used in step B.c.; iv. A stray sunlight test is performed which requires information on whether the data in question are to left or right of nadir; v. An edge test is performed which checks the location of the pixel within a scan line and the location of the scan line within the processing piece (a 'piece' is a subset of an entire orbit file); vi. A glint test is performed which requires a glint index calculated according to the Cox and Munk (1954) formulation; vii. The preceding steps are all combined into an overall quality flag assignment for each pixel. C. Spatial Binning. Sub-steps: a. An equal-area grid is defined into which GAC pixels are binned. No external data are needed, only information on the equal-area binning strategy itself; b. A data-day is defined following a spatial data-day definition. See https://www.nodc.noaa.gov/sog/pathfinder4km/Data-day.pdf for a description of the spatial data-day definition, written by Guillermo Podesta, University of Miami RSMAS; c. A land mask is applied to the dataset, identifying pixels that fall on land. This land mask was generated by rasterizing the Global Self-consistent Hierarchical High-resolution Shoreline (GSHHS) Database from the NOAA National Geophysical Data Center. Any 4km Pathfinder pixel whose area is 50% or more covered by land is considered land in this land mask. Inland water bodies were incorporated into this land mask by rasterizing the US World Wildlife Fund's Global Lakes and Wetlands Database. Any 4km Pathfinder pixel whose area is 50% or more covered by lake or river was considered water for in this land mask. D. Temporal Binning. Sub-steps: a. The spatially binned pieces from step C are accumulated into a single ascending (daytime) or descending (nighttime) file for each day. In case of overlapping satellite passes, only the best pixels of equivalent quality are binned. No external information is needed, only information about the accumulation procedure itself; b. Fields are reprojected from equal-area to the 8640x4320 equal-angle grid. Robert Evans University of Miami Rosenstiel School of Marine and Atmospheric Science Research Professor (305)421-4799 4600 Rickenbacker Causeway Miami FL 33149 revans@rsmas.miami.edu 9 - 5 EST principalInvestigator Twice-daily global L3 Pathfinder files in HDF4 are transferred from the University of Miami to the National Oceanographic Data Center, where they are converted into GDS2.0-compliant netCDF4. Details of this process are as follows: 1. Start time, end time, satellite ID, and orbit node (ascending or descending) are read from the input L3 HDF file and used to generate the name of the output netCDF file. (Note: The GDS2.0 standard requires the center time of collation to be the indicative time used in the filename for an L3C file.); 2. The reference time of the HDF file is converted to GDS2.0 "seconds since 1981-01-01 00:00:00" format and written to the netCDF file along with latitude and longitude values for the Pathfinder Version 5.2 grid; 3. Sea surface temperature data from the HDF "SST" file are written to the sea_surface_temperature variable in the netCDF file; 4. GDS2.0-required variables sst_dtime, sses_bias, and sses_standard_deviation are written to the netCDF file and populated with fill values. Note: Pathfinder Version 6.0 will contain actual values for these three variables; 5. Reference SST data from the corresponding HDF "REF" file are combined with the SST data to populate the dt_analysis variable in the netCDF file; 6. Wind speed data are written to the wind_speed variable in the netCDF file. These data are created by the NCEP-DOE Atmospheric Model Intercomparison Project (AMIP-II) reanalysis (R-2) and represent winds at 10 meters above the sea surface. They are interpolated to the Pathfinder Version 5.2 grid prior to processing; 7. Sea ice data are written to the sea_ice_fraction variable in the netCDF file. These data are taken from the EUMETSAT Ocean and Sea Ice Satellite Application Facility (OSISAF) Global Daily Sea Ice Concentration Reprocessing Data Set (https://accession.nodc.noaa.gov/0068294) when these data are available. The data are reprojected and interpolated from their original polar stereographic projection at 10km spatial resolution to the 4km Pathfinder Version 5.2 grid. When the OSISAF data are not available for both hemispheres on a given day, the sea ice concentration data are taken from the sea_ice_fraction variable found in the L4 GHRSST DailyOI SST product from NOAA/NCDC, and are interpolated from the 25km DailyOI grid to the 4km Pathfinder Version 5.2 grid; 8. Aerosol data are written to the aerosol_dynamic_indicator and adi_dtime_from_sst variables in the netCDF file. These data are pulled from three different sources and interpolated to the Pathfinder Version 5.2 grid prior to processing. For 1981-2000, AVHRR Pathfinder Atmospheres (PATMOS-A2) data from the NOAA Office of Satellite Data Processing and Distribution (OSDPD) are used. For 2003-2009, AVHRR Pathfinder Atmospheres - Extended (PATMOS-X) data from NOAA OSDPD are used. For 2001-2002 and 2010, data are taken from the OMI/Aura Aerosol Optical Depth and Single Scattering Albedo Daily L2 Global 0.25 degree gridded v003 product (OMAEROG), produced by the US NASA Goddard Earth Sciences Data and Information Services Center; 9. Original Pathfinder quality levels are read from the HDF file, mapped to the 6 quality levels required by the GDS2.0, and written to the variable quality_level in the netCDF file. The quality levels are as follows: GDS quality_level 5 = native Pathfinder quality level 7 == best_quality; GDS quality_level 4 = native Pathfinder quality_level 4-6 == acceptable_quality; GDS quality_level 3 = native Pathfinder quality level 2-3 == low_quality; GDS quality_level 2 = native Pathfinder quality level 1 == worst_quality; GDS quality_level 1 = native Pathfinder quality level 0 == bad_data; GDS quality_level 0 = native Pathfinder quality level -1 == missing_data; 10. The original Pathfinder quality level is written to the optional variable pathfinder_quality_level in the netCDF file; 11. River, lake, and land information from the Pathfinder Version 5.2 land mask, as well as sea ice presence information from the sea ice data described previously, are encoded in bits and written to the bit mask variable l2p_flags in the netCDF file; 12. Global attributes are written to the netCDF file according to GDS2.0 requirements; 13. Final AVHRR Pathfinder Version 5.2 data are quality assured through browse graphic generation and inspection. Upon completion of the quality assurance routines, the data are archived by the National Oceanographic Data Center and published online. Kenneth Casey DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce Technical Director (301)713-3272 x133 1315 East West Highway, SSMC3 E/OC Silver Spring MD 20910 Kenneth.Casey@noaa.gov 7 - 4 EST pointOfContact series Data Stewardship Data Stewardship Maturity Assessment MM-Stew The Data Stewardship Maturity Matrix (DSMM) is a unified framework that defines criteria for each of nine components based on measurable practices, which can be used to apply a progressive, 6-level rating to an individual dataset, representing stewardship maturity stages rated as Not Assessed or Not Available (Level 0), adHoc (Level 1), minimum (Level 2), intermediate (Level 3), advanced (Level 4), and optimal (Level 5). Data Stewardship Maturity Assessment was evaluated by the metadata content editor for the NOAA OneStop project using the Scientific Data Stewardship Maturity Assessment Model Template v4.0. The Scientific Data Stewardship Maturity Assessment Model Template 2015-06-23 publication NCDC-CICS-SMM_0001_Rev.1 v4.0 06/23/2015 https://doi.org/10.10.6084/m9.figshare.1211954 Peng, Ge CICS-NC/NCEI author https://doi.org/10.6084/m9.figshare.1211954 HTTPS Web Browser The Scientific Data Stewardship Maturity Assessment Model Template Landing page for quality evaluation procedure. information documentDigital 2018-03-20T00:00:00 optimal minimal advanced adHoc advanced intermediate intermediate intermediate intermediate series NCEI Accession 0071185 v1.1 was published. 2011-03-08T23:01:43Z NCEI Accession 0073577 v1.1 was published. 2011-06-13T21:13:23Z NCEI Accession 0073578 v1.1 was published. 2011-06-13T21:14:53Z NCEI Accession 0073579 v1.1 was published. 2011-06-13T21:15:50Z NCEI Accession 0073580 v1.1 was published. 2011-06-13T21:16:39Z NCEI Accession 0073581 v1.1 was published. 2011-06-13T21:17:37Z NCEI Accession 0073582 v1.1 was published. 2011-06-13T21:18:30Z NCEI Accession 0073583 v1.1 was published. 2011-06-13T21:19:23Z NCEI Accession 0073584 v1.1 was published. 2011-06-13T21:20:51Z NCEI Accession 0073585 v1.1 was published. 2011-06-13T21:22:14Z NCEI Accession 0073586 v1.1 was published. 2011-06-13T21:23:14Z NCEI Accession 0073587 v1.1 was published. 2011-06-13T21:24:21Z NCEI Accession 0073588 v1.1 was published. 2011-06-13T21:25:20Z NCEI Accession 0073589 v1.1 was published. 2011-06-13T21:26:50Z NCEI Accession 0073589 was revised and v2.2 was published. 2011-06-13T21:26:50Z NCEI Accession 0073590 v1.1 was published. 2011-06-13T21:27:48Z NCEI Accession 0073591 v1.1 was published. 2011-06-13T21:28:43Z NCEI Accession 0073592 v1.1 was published. 2011-06-13T21:29:29Z NCEI Accession 0073593 v1.1 was published. 2011-06-13T21:30:17Z NCEI Accession 0073594 v1.1 was published. 2011-06-13T21:31:00Z NCEI Accession 0073595 was revised and v2.2 was published. 2011-06-13T21:31:53Z NCEI Accession 0073596 v1.1 was published. 2011-06-13T21:32:50Z NCEI Accession 0073597 was revised and v2.2 was published. 2011-06-13T21:34:04Z NCEI Accession 0073598 was revised and v2.2 was published. 2011-06-13T21:34:49Z NCEI Accession 0073599 was revised and v2.2 was published. 2011-06-13T21:35:39Z NCEI Accession 0073600 was revised and v2.2 was published. 2011-06-13T21:36:43Z NCEI Accession 0073601 v1.1 was published. 2011-06-13T21:37:36Z NCEI Accession 0073602 v1.1 was published. 2011-06-13T21:38:34Z NCEI Accession 0073603 v1.1 was published. 2011-06-13T21:39:30Z NCEI Accession 0073604 v1.1 was published. 2011-06-13T21:40:28Z NCEI Accession 0073605 v1.1 was published. 2011-06-13T21:41:04Z NCEI Accession 0099811 v1.1 was published. 2013-01-25T14:57:55Z NCEI Accession 0111842 v1.1 was published. 2013-09-27T21:31:03Z NCEI Accession 0073589 was revised and v3.3 was published. 2014-06-06T15:21:12Z NCEI Accession 0073590 was revised and v2.2 was published. 2014-06-06T16:31:46Z NCEI Accession 0073595 v1.1 was published. 2021-10-15T02:35:24Z NCEI Accession 0073597 v1.1 was published. 2021-10-15T02:35:24Z NCEI Accession 0073598 v1.1 was published. 2021-10-15T02:35:24Z NCEI Accession 0073599 v1.1 was published. 2021-10-15T02:35:24Z NCEI Accession 0073600 v1.1 was published. 2021-10-15T02:35:24Z 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-19 Updated information from ICES for the platform NOAA-15 from United States. Name NOAA-19 Country(s) US: UNITED STATES Platform Class 65: Orbiting satellite Native Name Synonyms Call Sign MMSI IMO Pennant Title Commissioned Date 2009 Decommissioned Date 2016 Notes Polar-orbiting environmental satellite launched February 2009 as NOAA-N Prime. The NODC has archived AVHRR SST data collected from this platform as part of the Group for High Resolution Sea Surface Temperature (GHRSST) Project. Additional information: Main body: 4.2m (13.75 ft) long, 1.88m (6.2 ft) diameter Solar array: 2.73m (8.96 ft) by 6.14m (20.16 ft) Weight at Liftoff: 1419.8 kg (3130 pounds) including 4.1 kg of gaseous nitrogen Launch Vehicle: Delta-II 7320-10 Space Launch Vehicle Launch Date: February 06, 2009 Vandenburg Air Force Base, CA Orbital information: Type: sun synchronous Altitude: 870 km Period: 102.14 minutes Inclination: 98.730 degrees Sensors: Advanced Very High Resolution Radiometer (AVHRR/3) Advanced Microwave Sounding Unit-A (AMSU-A) Microwave Humidity Sounder (MHS) High Resolution Infrared Radiation Sounder (HIRS/4) Solar Backscatter Ultraviolet Spectral radiometer (SBUV/2) Space Environment Monitor (SEM/2) Search and Rescue (SAR) Repeater and Processor Advance Data Collection System (ADCS) Information source (URL) https://www.wmo-sat.info/oscar/satellites/view/341 http://noaasis.noaa.gov/NOAASIS/ml/genlsatl.html 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.