2026-08-15T12:29:29Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-0464.0012026-07-30T19:13:29Zv0_daacv0_allretirednasa_nsidc_daac
NSIDC-0464.001Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness TemperaturesLong, D. G. & Stroeve, J.Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures2011-08-11Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center1false10.5067/MES22DNFS3O8https://nsidc.org/sites/default/files/nsidc-0464-v001-userguide_1.pdfNSIDC-0464Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCESPECTRAL/ENGINEERINGMICROWAVEBRIGHTNESS TEMPERATURE Climatology/Meteorology/AtmosphereAntarcticArcticDaily DataEASE-GridEASE-Grid-projectEASE-Grid TB-projectEOSDISGridded DataNSIDC DAACPassive MicrowavePolarRemote SensingSMMR and SSM/I-SSMIS-projectsmmr-ssmi-projectAMSR-EAdvanced Microwave Scanning Radiometer-EOSSSM/ISpecial Sensor Microwave/ImagerAquaEarth Observing System, AquaDMSP 5D-2/F13Defense Meteorological Satellite Program-F131995-01-012008-12-312002-01-012011-10-01deprecated-90-39-1801803090-180180OCEANSOUTHERN OCEANOCEANATLANTIC OCEANNORTH ATLANTIC OCEANOCEANARCTIC OCEANGEOGRAPHIC REGIONPOLARCONTINENTNORTH AMERICACANADAHUDSON BAYOCEANARCTIC OCEANCHUKCHI SEAOCEANPACIFIC OCEANNORTH PACIFIC OCEANBERING SEAOCEANARCTIC OCEANBEAUFORT SEA2.5 km2.5 km12 hour7.5 km7.5 km12 hour12.5 km12.5 km12 hourEnhanced SSM/I brightness temperatures were produced without calibration changes from the Remote Sensing Systems (RSS) Version 6 (V6) SSM/I swath product for DMSP-F13. Enhanced AMSR-E brightness temperatures were produced, also without adjustments, from the RSS V4 AMSR-E swath product. For details regarding calibration and validation of these source products, please visit RSS.These data have been retired and are no longer accessible, though a more recent version of these data may be available.These data have been retired and are no longer available for use, though a more recent version of these data may be available. Cite any prior or planned use of these data according to the recommended citation at https://nsidc.org/about/data-use-and-copyright. For more information on the NASA ESDIS Data Use Guidance, see https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance.EnglishBYUNASA NSIDC DAACNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daacData Center ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-6199National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAHTTPS5 - 7168 KBGIFHTTPS1.5 - 63 MBBinaryLong, D. G., P. Hardin, and P. Whiting. 1993. Resolution Enhancement of Spaceborne Scatterometer Data. IEEE Trans. Geosci. Remote Sens. 31: 700-715. Long, D. G. and D. Daum. 1998. Spatial Resolution Enhancement of SSM/I Data. IEEE Trans. Geosci. Rem. Sens. 36: 407-417.
Long, D. G., D. Early, and M. R. Drinkwater. 1994. Enhanced Resolution ERS-1 Scatterometer Imaging of Southern Hemisphere Polar Ice. Proc. Int. Geosci. Rem. Sens. Sym., Pasadena, California, 8-12 August, 156-158.
Long, D. G. and M. R. Drinkwater. 1999. Cryosphere Applications of NSCAT Data. IEEE Trans. Geosci. Remote Sens. 37 (3): 1671-1684. Early, D. S. and D. G. Long. 2001. Image Reconstruction and Enhanced Resolution Imaging from Irregular Samples. IEEE Trans. Geosci. Remote Sens. 39 (2): 291-302.
Gunn, B. 2007. Temporal Resolution Enhancement for AMSR Images. MERS Technical Report 07-02, 04 Dec. 2007. www.scp.byu.edu/docs/pdf/MERS0702.pdf Hollinger, J. P. and R. C. Lo. 1983. SSM/I Project Summary Report. Naval Research Laboratory. NRL Memorandum Report 5055. 106 pp.
Stroeve, J. 1998. Impact of Various Processing Options on SSM/I-Derived Brightness Temperatures. NSIDC Special Report-7. http://nsidc.org/pubs/special/7/index.htmlThis data set is retired and no longer available for download. We recommend using MEaSUREs Calibrated Enhanced-Resolution Passive Microwave Daily EASE-Grid 2.0 Brightness Temperature ESDR data set as an alternative at https://nsidc.org/data/nsidc-0630. This data set contains enhanced-resolution brightness temperatures produced using the Scatterometer Image Reconstruction (SIR) algorithm developed by the Microwave Earth Remote Sensing (MERS) group at Brigham Young University (BYU). Enhanced-resolution brightness temperature images for the Arctic and Antarctic were generated using antenna temperature data from the Special Sensor Microwave/Imager (SSM/I) and the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) instrument. SSM/I images are available for 1995 through 2008, and AMSR-E images are available for 2002 through 2010. All available measurements for a single day are averaged into twice-daily gridded files for three different equal-area spatial coverages: Northern Hemisphere, Southern Hemisphere, and full global. The spatial resolution is 12.5 km for SSM/I channels 19 and 22 GHz, 7.5 km for 37 GHz, and 2.5 km for the 85 GHz channel. For AMSR-E, the resolution is 12.5 km for the 6, 10, 18, and 23 GHz channels; 7.5 km for the 36 GHz channel; and 2.5 km for the 89 GHz channel. Software for reading the SIR-formatted SSM/I and AMSR-E data is also available. As scatterometer and radiometer data complement each other, these enhanced-resolution radiometer data, together with SIR format scatterometer data available from BYU, will facilitate polar research that combines information from both radiometers and scatterometers. Data are stored as scaled 2-byte integers in binary arrays with a 512-byte header.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/nsidc-0464-v001-userguide_1.pdfEnhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures, Version 1 User GuideUSA/NASACEOS IDN DIFVERSION 9.92011-08-112026-07-30NSIDCVersion SummaryInitial releaseNSIDCMinor VersionNSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:3408NSIDC EASE-Grid NorthEPSG:3409NSIDC EASE-Grid SouthEPSG:3410NSIDC EASE-Grid GlobalNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationLong, D. G. & Stroeve, J. (2011). <i>Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures</i>. (NSIDC-0464, Version 1). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/MES22DNFS3O8">https://doi.org/10.5067/MES22DNFS3O8</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrue