gov.noaa.nodc:SAR-Winds-RADARSAT2 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 2026-07-06T16:31:10Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA high resolution sea surface winds data from Synthetic Aperture Radar (SAR) on the RADARSAT-2 satellite 2015-05-07 publication 2026-07-06 revision 2015-04-29 creation International DOI Foundation (IDF) 10.7289/v5m906ns NOAA National Centers for Environmental Information gov.noaa.nodc:SAR-Winds-RADARSAT2 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 John F. Sapper NOAA Office of Satellite and Product Operations (OSPO) john.sapper@noaa.gov https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information resourceProvider Hongming Qi NOAA Office of Satellite and Product Operations (OSPO) hongming.qi@noaa.gov https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information resourceProvider NOAA Center for Satellite Applications and Research (STAR) https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information resourceProvider NOAA Office of Satellite and Product Operations (OSPO) https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information resourceProvider Pichel, William G. NOAA/NESDIS Center for Satellite Applications and Research https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author Monaldo, Francis M. NOAA/NESDIS Center for Satellite Applications and Research https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author Jackson, Christopher R. NOAA/NESDIS Center for Satellite Applications and Research https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information author Sapper, John NOAA/NESDIS Office of Satellite and Product Operations john.sapper@noaa.gov https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author Hatteberg, Rachel NOAA/NESDIS Office of Satellite and Product Operations https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information author Hongming Qi NOAA Office of Satellite and Product Operations (OSPO) Product Area Leader Oceanographic Products hongming.qi@noaa.gov https://ospo.noaa.gov/ HTTPS NOAA Office of Satellite and Product Operations (OSPO) website Institution web page information pointOfContact Francis Monaldo NOAA Center for Satellite Applications and Research (STAR) frank.monaldo@noaa.gov https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information pointOfContact NOAA Center for Satellite Applications and Research (STAR) https://www.star.nesdis.noaa.gov/ HTTPS NOAA Center for Satellite Applications and Research (STAR) website Institution web page information contributor Canadian Space Agency (CSA) https://www.asc-csa.gc.ca/ HTTPS Canadian Space Agency (CSA) website Institution web page information contributor tableDigital This dataset consists of high resolution sea surface winds data produced from Synthetic Aperture Radar (SAR) on board the RADARSAT-2 satellite. The basic archive file is a netCDF-4 file containing SAR wind, a land mask, and time and earth location information. Maps of the SAR wind data in GeoTIFF format are also included. The product covers the geographic extent of the SAR image frame from which it was derived. These SAR-derived high resolution wind products are calculated from high resolution SAR images of normalized radar cross section (NRCS) of the Earth's surface. Backscattered microwave radar returns from the ocean surface are strongly dependent on wind speed and direction. When no wind is present, the surface of the water is smooth, almost glass-like. Radar energy will largely be reflected away and the radar cross section will be low. As the wind begins to blow, the surface roughens and surface waves begin to develop. As the wind continues to blow more strongly, the amplitude of the wave increases, thus, roughening the surface more. As the surface roughness increases, more energy is backscattered and NRCS increases. Moreover, careful examination of the wind-generated waves reveals that these surface wave crests are generally aligned perpendicular to the prevailing wind direction, suggesting a dependence of backscatter on the relative direction between the incident radar energy and the wind direction. This dataset is available to the public for a wide variety of uses including scientific research and analysis. onGoing 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 monthly https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:SAR-Winds-RADARSAT2 Preview graphic PNG 0127453 0127454 0127821 0128188 0128218 0128254 0128345 0128348 0128382 0128445 0128472 0128904 0129147 0129166 0130370 0131329 0134849 0137764 0138741 0140224 0141437 0145089 0146059 0150187 0152516 0155307 0156236 0156509 0156691 0156912 0157125 0157732 0159806 0161499 0162260 0162498 0163177 0163982 0164667 0165988 0167148 0167865 0168903 0169630 0170451 0171015 0172097 0173103 0173585 0174335 0175107 0175926 0176623 0177939 0182311 0184015 0184701 0186006 0187372 0188474 0189658 0191233 0194296 0201785 0204306 0206525 0207825 0208360 0209036 0209179 0209621 0210082 0210709 0211080 0216081 0219920 0220412 0221676 0222757 0224018 0225449 0226211 0228136 0232194 0235459 0238732 0239873 0240897 0241615 0242741 0243871 0244864 0247247 0249174 0251167 0253296 0253695 0255238 0257471 0259442 0262919 0268542 0275961 0276234 0276530 0276923 0277488 0277963 0278965 0279815 0281355 0282455 0283756 0290542 0290882 0290883 0290890 0290891 0292363 0292364 0293528 0294739 0295973 0297013 0298683 0298684 0299648 0300408 0301558 0302268 0303197 0304015 0304888 0305891 0306878 0307725 0308516 0309251 0310448 0311350 0312256 0313055 0313934 0314718 0315602 0316498 NCEI ACCESSION NUMBER 2026-06-30 publication WIND SPEED theme NODC DATA TYPES THESAURUS SAR instrument NODC INSTRUMENT TYPES THESAURUS satellite data theme NODC OBSERVATION TYPES THESAURUS RADARSAT-2 platform NODC PLATFORM NAMES THESAURUS Canadian Space Agency NOAA Center for Satellite Applications and Research dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Center for Satellite Applications and Research NOAA Office of Satellite and Product Operations dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Arctic Ocean Baffin Bay Baltic Sea Barents Sea Beaufort Sea Bering Sea Chukchi Sea Chukchi Sea - NW Coast of Alaska East China Sea (Tung Hai) Great Lakes Greenland Sea (including Iceland Sea and North Greenland Sea) Gulf of Alaska Gulf of Bothnia (Bay of Bothnia and Bothnian Sea) Gulf of Finland Gulf of St. Lawrence Japan Sea Kara Sea Labrador Sea North Atlantic Ocean Northwest Atlantic Ocean (limit-40 W) Norwegian Sea Sargasso Sea Sea of Okhotsk White Sea World-Wide Distribution Yellow Sea (Hwang Hai) place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/OSPO > Office of Satellite and Product Operations, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NESDIS/STAR > Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 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 EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED 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 time wind_speed theme NetCDF Climate and Forecast (CF) Metadata Convention Standard Names SAR > Synthetic Aperture Radar 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 RADARSAT-2 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 CONTINENT > NORTH AMERICA > CANADA > GREAT LAKES, CANADA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > GREAT LAKES GEOGRAPHIC REGION > GLOBAL OCEAN OCEAN > ARCTIC OCEAN OCEAN > ARCTIC OCEAN > BARENTS SEA OCEAN > ARCTIC OCEAN > BEAUFORT SEA OCEAN > ARCTIC OCEAN > CHUKCHI SEA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > BALTIC SEA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF ST LAWRENCE OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > NORWEGIAN SEA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > GULF OF ALASKA OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > SEA OF JAPAN OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > SEA OF OKHOTSK OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > EAST CHINA SEA OCEAN > PACIFIC OCEAN > WESTERN PACIFIC OCEAN > YELLOW SEA 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: Pichel, William G.; Monaldo, Francis M.; Jackson, Christopher R.; Sapper, John; Hatteberg, Rachel (2015). NOAA high resolution sea surface winds data from Synthetic Aperture Radar (SAR) on the RADARSAT-2 satellite. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5m906ns. 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. Algorithm Theoretical Basis Document For Retrieval of Winds from Synthetic Aperture Radar 2012-04-02 publication Frank Monaldo author National Oceanic and Atmospheric Administration (NOAA) https://www.noaa.gov/ HTTPS National Oceanic and Atmospheric Administration (NOAA) website Institution web page information publisher documentHardcopy crossReference sciencePaper Liu, G., Yang, X., Li, X., Zhang, B., Pichel, W., Li, Z., & Zhou, X. (2013). A Systematic Comparison of the Effect of Polarization Ratio Models on Sea Surface Wind Retrieval From C-Band Synthetic Aperture Radar. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 6(3), 1100–1108. https://doi.org/10.1109/jstars.2013.2242848 2013-06 publication International DOI Foundation (IDF) https://doi.org/10.1109/jstars.2013.2242848 https://doi.org/10.1109/jstars.2013.2242848 HTTPS https://doi.org/10.1109/jstars.2013.2242848 Journal article. information Liu, Guihong author Yang, Xiaofeng author Li, Xiaofeng author Zhang, Biao author Pichel, William author Li, Ziwei author Zhou, Xuan author Institute of Electrical and Electronics Engineers (IEEE) publisher documentDigital IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing 6(3) ISSN 1939-1404, ISSN 2151-1535, pp. 1100-1108 crossReference sciencePaper Zhang, B., Perrie, W., Vachon, P. W., Li, X., Pichel, W. G., Guo, J., & He, Y. (2012). Ocean Vector Winds Retrieval From C-Band Fully Polarimetric SAR Measurements. IEEE Transactions on Geoscience and Remote Sensing, 50(11), 4252–4261. https://doi.org/10.1109/tgrs.2012.2194157 2012-11 publication International DOI Foundation (IDF) https://doi.org/10.1109/tgrs.2012.2194157 https://doi.org/10.1109/tgrs.2012.2194157 HTTPS https://doi.org/10.1109/tgrs.2012.2194157 Journal article information Zhang, Biao author Perrie, William author Vachon, Paris W. author Li, Xiaofeng author Pichel, William G. author Guo, Jie author He, Yijun author Institute of Electrical and Electronics Engineers (IEEE) publisher documentDigital IEEE Trans. Geosci. Remote Sensing 50(11) ISSN 0196-2892, ISSN 1558-0644, pp. 4252-4261 crossReference sciencePaper Qi, Hongming; NOAA Office of Satellite and Product Operations (2024). Documentation for NOAA Synthetic Aperture Radar (SAR) High Resolution Coastal Winds products (NCEI Accession 0289529). https://www.ncei.noaa.gov/archive/accession/0289529. In Helfrich, Sean; Monaldo, Francis M.; Jackson, Christopher R.; Ruff, Tyler; Qi, Hongming; Wardak, Edrees (2024). NOAA high resolution sea surface winds data from Synthetic Aperture Radar (SAR) on the RADARSAT Constellation Mission (RCM) satellites. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/SAR-Winds-RCM. 2024-03-16 publication NOAA National Centers for Environmental Information gov.noaa.nodc:0289529 https://www.ncei.noaa.gov/archive/accession/0289529 HTTPS https://www.ncei.noaa.gov/archive/accession/0289529 Product documentation information Qi, Hongming NOAA Office of Satellite and Product Operations (OSPO) hongming.qi@noaa.gov https://www.nesdis.noaa.gov/about/our-offices/office-of-common-services HTTPS NOAA/NESDIS Office of Common Services (OCS) website Institution web page information author NOAA Office of Satellite and Product Operations https://www.nesdis.noaa.gov/about/our-offices/office-of-common-services HTTPS NOAA/NESDIS Office of Common Services (OCS) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher documentDigital crossReference eng; USA utf8 environment oceans climatologyMeteorologyAtmosphere -180 180 -90 90 2014-05-02 Individual SAR images with wind data at a resolution of 0.5 km are obtained from Alaska waters and the North Pacific covering the region: 179.0E to -179.0W, 75.0N to 40.0N. Some coverage has been obtained over Hawaii, the coasts of Maryland, Delaware, and the northern gulf of Mexico. SAR products support the following mission/projects: Weather and Water, Ecosystems, Commerce and Transportation, hazard monitoring and response, CoastWatch, the National Ice Center, the Office of Response and Restoration Emergency Response Division, and other NOAA offices. 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-3 NCEI_NETCDF_Grid_Template_v1.1, CF-1.6, Unidata Dataset Discovery v1.0 netCDF netCDF-4 classic model NCEI_NETCDF_Grid_Template_v1.1, ACDD-1.3, CF-1.5 GeoTIFF 1215918.496 https://doi.org/10.7289/v5m906ns 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/metadata/granule/geoportal/?from=0&size=10&esdsl=%7B%22query%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22query_string%22%3A%7B%22analyze_wildcard%22%3Atrue%2C%22query%22%3A%22fileid%3ASAR-Winds-RADARSAT2.*%22%7D%7D%5D%7D%7D%7D#searchPanel HTTPS Web browser Granule Search Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved). search https://www.ncei.noaa.gov/thredds-ocean/catalog/sar-winds/radarsat2/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/sar-winds/radarsat2/ HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/sar-winds/radarsat2/ 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 series NCEI Accession 0127453 v1.1 was published. 2015-05-07T11:50:40Z NCEI Accession 0127454 v1.1 was published. 2015-05-07T20:48:19Z NCEI Accession 0127821 v1.1 was published. 2015-05-08T13:53:26Z NCEI Accession 0128188 v1.1 was published. 2015-05-20T15:57:45Z NCEI Accession 0128218 v1.1 was published. 2015-05-21T16:46:45Z NCEI Accession 0128254 v1.1 was published. 2015-05-22T12:30:02Z NCEI Accession 0128345 v1.1 was published. 2015-05-23T04:35:01Z NCEI Accession 0128348 v1.1 was published. 2015-05-23T19:52:49Z NCEI Accession 0128382 v1.1 was published. 2015-05-24T20:02:55Z NCEI Accession 0128445 v1.1 was published. 2015-05-25T13:10:47Z NCEI Accession 0128472 v1.1 was published. 2015-05-26T14:06:00Z NCEI Accession 0128904 v1.1 was published. 2015-05-28T02:40:02Z NCEI Accession 0129147 v1.1 was published. 2015-06-04T14:12:37Z NCEI Accession 0128445 was revised and v2.2 was 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published. 2017-08-05T12:30:05Z NCEI Accession 0165988 v1.1 was published. 2017-09-05T12:29:13Z NCEI Accession 0167148 v1.1 was published. 2017-10-05T12:26:43Z NCEI Accession 0167865 v1.1 was published. 2017-11-05T12:28:22Z NCEI Accession 0168903 v1.1 was published. 2017-12-05T15:36:59Z NCEI Accession 0167865 was revised and v2.2 was published. 2017-12-05T16:24:20Z NCEI Accession 0169630 v1.1 was published. 2018-01-05T12:29:32Z NCEI Accession 0170451 v1.1 was published. 2018-02-05T14:34:41Z NCEI Accession 0171015 v1.1 was published. 2018-03-05T12:31:25Z NCEI Accession 0172097 v1.1 was published. 2018-04-05T15:17:20Z NCEI Accession 0157732 was revised and v3.3 was published. 2018-04-29T02:22:36Z NCEI Accession 0159806 was revised and v2.2 was published. 2018-04-30T18:36:37Z NCEI Accession 0173103 v1.1 was published. 2018-05-06T00:09:42Z NCEI Accession 0173585 v1.1 was published. 2018-06-05T12:33:28Z NCEI Accession 0174335 v1.1 was published. 2018-07-05T12:20:51Z NCEI Accession 0175107 v1.1 was published. 2018-08-05T12:24:07Z NCEI Accession 0175926 v1.1 was published. 2018-09-05T13:17:01Z NCEI Accession 0176623 v1.1 was published. 2018-10-05T12:37:12Z NCEI Accession 0177939 v1.1 was published. 2018-11-05T13:02:30Z NCEI Accession 0182311 v1.1 was published. 2018-12-05T17:53:06Z NCEI Accession 0173585 was revised and v2.2 was published. 2018-12-06T14:30:24Z NCEI Accession 0184015 v1.1 was published. 2019-01-05T12:52:44Z NCEI Accession 0184701 v1.1 was published. 2019-02-05T13:09:56Z NCEI Accession 0186006 v1.1 was published. 2019-03-05T13:05:11Z NCEI Accession 0187372 v1.1 was published. 2019-04-05T13:48:25Z NCEI Accession 0188474 v1.1 was published. 2019-05-05T14:22:23Z NCEI Accession 0189658 v1.1 was published. 2019-06-05T12:55:17Z NCEI Accession 0191233 v1.1 was published. 2019-07-05T12:30:43Z NCEI Accession 0194296 v1.1 was published. 2019-08-05T16:52:34Z NCEI Accession 0201785 v1.1 was published. 2019-09-05T12:56:43Z NCEI Accession 0204306 v1.1 was published. 2019-10-05T20:17:14Z NCEI Accession 0206525 v1.1 was published. 2019-11-05T15:30:23Z NCEI Accession 0207825 v1.1 was published. 2019-12-05T13:52:03Z NCEI Accession 0208360 v1.1 was published. 2020-01-13T16:00:25Z NCEI Accession 0209036 v1.1 was published. 2020-02-05T16:04:50Z NCEI Accession 0209179 v1.1 was published. 2020-03-05T13:48:34Z NCEI Accession 0209621 v1.1 was published. 2020-04-05T13:51:54Z NCEI Accession 0209621 was revised and v2.2 was published. 2020-04-08T21:59:18Z NCEI Accession 0210082 v1.1 was published. 2020-05-05T19:39:30Z NCEI Accession 0210082 was revised and v2.2 was published. 2020-05-08T16:48:40Z NCEI Accession 0210709 v1.1 was published. 2020-06-05T13:37:21Z NCEI Accession 0211080 v1.1 was published. 2020-07-05T16:35:52Z NCEI Accession 0216081 v1.1 was published. 2020-08-05T12:50:13Z NCEI Accession 0219920 v1.1 was published. 2020-09-05T13:29:58Z NCEI Accession 0220412 v1.1 was published. 2020-10-05T14:49:19Z NCEI Accession 0221676 v1.1 was published. 2020-11-05T19:42:39Z NCEI Accession 0222757 v1.1 was published. 2020-12-05T14:12:39Z NCEI Accession 0224018 v1.1 was published. 2021-01-05T14:39:36Z NCEI Accession 0225449 v1.1 was published. 2021-02-05T12:54:17Z NCEI Accession 0226211 v1.1 was published. 2021-03-05T15:03:31Z NCEI Accession 0228136 v1.1 was published. 2021-04-05T12:10:25Z NCEI Accession 0232194 v1.1 was published. 2021-05-05T12:56:53Z NCEI Accession 0235459 v1.1 was published. 2021-06-05T12:37:40Z NCEI Accession 0238732 v1.1 was published. 2021-07-05T15:47:36Z NCEI Accession 0239873 v1.1 was published. 2021-08-05T12:41:25Z NCEI Accession 0240897 v1.1 was published. 2021-09-05T12:53:02Z NCEI Accession 0241615 v1.1 was published. 2021-10-05T13:09:43Z NCEI Accession 0242741 v1.1 was published. 2021-11-05T12:21:59Z NCEI Accession 0243871 v1.1 was published. 2021-12-05T12:28:28Z NCEI Accession 0244864 v1.1 was published. 2022-01-05T13:01:59Z NCEI Accession 0242741 was revised and v2.2 was published. 2022-01-26T14:41:36Z NCEI Accession 0243871 was revised and v2.2 was published. 2022-02-04T20:04:59Z NCEI Accession 0247247 v1.1 was published. 2022-02-05T12:50:00Z NCEI Accession 0249174 v1.1 was published. 2022-03-05T12:34:01Z NCEI Accession 0251167 v1.1 was published. 2022-04-06T12:46:09Z NCEI Accession 0253296 v1.1 was published. 2022-05-05T13:19:36Z NCEI Accession 0253695 v1.1 was published. 2022-06-06T12:33:02Z NCEI Accession 0255238 v1.1 was published. 2022-07-05T12:22:22Z NCEI Accession 0257471 v1.1 was published. 2022-08-05T12:21:51Z NCEI Accession 0259442 v1.1 was published. 2022-09-06T22:19:35Z NCEI Accession 0262919 v1.1 was published. 2022-10-05T20:12:38Z NCEI Accession 0268542 v1.1 was published. 2022-11-05T20:23:54Z NCEI Accession 0275961 v1.1 was published. 2022-12-05T12:32:30Z NCEI Accession 0276234 v1.1 was published. 2023-01-05T12:47:38Z NCEI Accession 0276530 v1.1 was published. 2023-02-06T01:55:10Z NCEI Accession 0276923 v1.1 was published. 2023-03-05T12:43:52Z NCEI Accession 0277488 v1.1 was published. 2023-04-05T12:34:35Z NCEI Accession 0277963 v1.1 was published. 2023-05-06T12:39:45Z NCEI Accession 0278965 v1.1 was published. 2023-06-05T12:23:45Z NCEI Accession 0279815 v1.1 was published. 2023-07-05T12:27:46Z NCEI Accession 0281355 v1.1 was published. 2023-08-06T12:28:11Z NCEI Accession 0282455 v1.1 was published. 2023-09-05T15:19:27Z NCEI Accession 0283756 v1.1 was published. 2023-10-06T13:01:51Z NCEI Accession 0290542 v1.1 was published. 2024-03-27T07:26:20Z NCEI Accession 0290882 v1.1 was published. 2024-04-06T12:38:32Z NCEI Accession 0290883 v1.1 was published. 2024-04-06T13:03:46Z NCEI Accession 0290890 v1.1 was published. 2024-04-07T12:58:59Z NCEI Accession 0290891 v1.1 was published. 2024-04-07T12:59:34Z NCEI Accession 0292363 v1.1 was published. 2024-05-05T12:35:18Z NCEI Accession 0292364 v1.1 was published. 2024-05-05T12:52:22Z NCEI Accession 0293528 v1.1 was published. 2024-06-05T12:16:42Z NCEI Accession 0294739 v1.1 was published. 2024-07-05T12:20:35Z NCEI Accession 0295973 v1.1 was published. 2024-08-05T12:20:12Z NCEI Accession 0297013 v1.1 was published. 2024-09-05T12:21:41Z NCEI Accession 0298683 v1.1 was published. 2024-11-05T12:17:58Z NCEI Accession 0298684 v1.1 was published. 2024-11-05T12:22:08Z NCEI Accession 0299648 v1.1 was published. 2024-12-05T13:12:04Z NCEI Accession 0298683 was revised and v2.2 was published. 2024-12-23T18:09:17Z NCEI Accession 0300408 v1.1 was published. 2025-01-05T12:18:01Z NCEI Accession 0301558 v1.1 was published. 2025-02-05T12:18:51Z NCEI Accession 0302268 v1.1 was published. 2025-03-05T12:16:47Z NCEI Accession 0303197 v1.1 was published. 2025-04-04T12:14:06Z NCEI Accession 0304015 v1.1 was published. 2025-05-05T12:16:31Z NCEI Accession 0304888 v1.1 was published. 2025-06-05T12:18:39Z NCEI Accession 0305891 v1.1 was published. 2025-07-05T12:19:26Z NCEI Accession 0306878 v1.1 was published. 2025-08-05T12:18:35Z NCEI Accession 0307725 v1.1 was published. 2025-09-06T12:20:30Z NCEI Accession 0308516 v1.1 was published. 2025-10-06T13:10:59Z NCEI Accession 0309251 v1.1 was published. 2025-11-05T12:21:35Z NCEI Accession 0310448 v1.1 was published. 2025-12-05T19:11:22Z NCEI Accession 0311350 v1.1 was published. 2026-01-05T12:20:21Z NCEI Accession 0312256 v1.1 was published. 2026-02-05T12:16:20Z NCEI Accession 0313055 v1.1 was published. 2026-03-05T12:39:50Z NCEI Accession 0313934 v1.1 was published. 2026-04-05T12:19:42Z NCEI Accession 0314718 v1.1 was published. 2026-05-05T12:19:10Z NCEI Accession 0315602 v1.1 was published. 2026-06-05T20:50:03Z NCEI Accession 0316498 v1.1 was published. 2026-07-06T15:44:12Z 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 SAR SAR Synthetic Aperture Radar Synthetic-aperture radar (SAR) is a form of radar which is used to create images of an object, such as a landscape – these images can be 2D or 3D representations of the object. SAR uses the motion of the SAR antenna over a target region to provide finer spatial resolution than is possible with conventional beam-scanning radars. The distance the SAR device travels over a target creates a large "synthetic" antenna aperture (the "size" of the antenna). As a rule of thumb one can assume that the larger the aperture is, the higher the image resolution becomes, regardless whether physical aperture or synthetic aperture – this allows SAR to create high resolution images with comparatively small physical antennas.Many satellites have SAR imagery capabilities using different microwave bands (L,C,S,X etc.). Additional Information: http://www.radartutorial.eu/20.airborne/ab07.en.html http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/SAR_missions GCMD Instrument Keyword - "Earth Remote Sensing Instruments","Active Remote Sensing","Imaging Radars","","SAR","Synthetic Aperture Radar" RADARSAT-2 Name *: RADARSAT-2 Country: Canada Platform Class *: 65-Orbiting satellite Operations/Responsible organization:MacDonald, Dettwiler and Associates Ltd. (MDA) Previous Name: N/A Launched Date: 2007-12-14 Commissioned Date: 2008-04-25 Decommissioned Date: Current Length (m): 3.7; width (m): 1.36 Notes +: RADARSAT-2, the second in a series of Canadian spaceborne Synthetic Aperture Radar (SAR) satellites, was built by MacDonald Dettwiler, Richmond, Canada and jointly funded by the Canadian Space Agency (CSA) and MDA. It is a single-sensor C-band (5.405 GHz) Synthetic Aperture Radar (SAR) with multiple polrization modes, including a fully polarimetric mode in which HH, HV, VV and VH polarized data are acquired. It's highest resolution is 1 m in Spotlight mode (3 m in Ultra Fine mode) with 100 m positional accuracy requirement. In ScanSAR Wide Beam mode the SAR has a nominal swath width of 500 km and an imaging resolution of 100 m. GCMD Platform Keyword - "Earth Observation Satellites","RADARSAT","RADARSAT-2","" Info Source: http://www.asc-csa.gc.ca/eng/satellites/radarsat2/default.asp http://gs.mdacorporation.com/SatelliteData/Radarsat2/Radarsat2.aspx