2026-08-29T10:44:17Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-0152.0012026-08-29T01:43:46Zv0_daacv0_allnasa_nsidc_daac
NSIDC-0152.001CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and ReflectancesCline, D.CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances2004-02-01Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center1false10.5067/FCK3KVGQPH3Ohttps://nsidc.org/sites/default/files/nsidc-0152-v001-userguide.pdfNSIDC-0152Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCESPECTRAL/ENGINEERINGINFRARED WAVELENGTHSINFRARED IMAGERY EARTH SCIENCESPECTRAL/ENGINEERINGVISIBLE WAVELENGTHSVISIBLE IMAGERY AMSR-E Validation-projectAVHRRCLPX-projectEROSHRPTImageryLACRadianceRasterSatellitesatellite-basedAVHRRAdvanced Very High Resolution RadiometerNOAA-16National Oceanic & Atmospheric Administration-16NOAA-17National Oceanic & Atmospheric Administration-172001-11-092003-06-26active38.4542.05-108.55-103.95CONTINENTNORTH AMERICAUNITED STATES OF AMERICACOLORADOCONTINENTNORTH AMERICAUNITED STATES OF AMERICAWYOMINGThe AVHRR sensor was designed to view cold space and one or more internal warm blackbodies for each scan sequence while in orbit. In general, radiometric calibration involves exposing a radiometer to sources of radiation that have been calibrated against primary or secondary standards and determining a relationship between the output of the radiometer and the intensity of the incident radiation (radiance). All of the radiometers flown on the NOAA/TIROS satellites undergo extensive prelaunch testing and calibration by their manufacturers to characterize their performance.
As the spacecraft moves through its orbit, the expected angular distance between the nadir of adjacent LAC/HRPT scans is approximately 0.0296 degrees of arc, or 3.2914 kilometers, as measured from the center of Earth. The actual value of the average angular distance can vary by up to about 0.1712 kilometers due to variations in satellite height, scan angle, and other factors. The instantaneous field-of-view (IFOV) for all channels is specified to be 1.3 +/- 0.1 milliradians.These data are freely, openly, and fully accessible, provided that you are logged into your NASA Earthdata profile (https://urs.earthdata.nasa.gov/).These data are freely, openly, and fully available to use without restrictions, provided that you cite the data according to the recommended citation at https://nsidc.org/about/use_copyright.html. For more information on the NASA EOSDIS Data Use Policy, see https://earthdata.nasa.gov/earth-observation-data/data-use-policy.EnglishDOC/NOAA/NWS/NOHRSCNASA 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 ColoradoBoulderCO80309-0449USAFTP4.6 - 4.85 KBBinaryHTTPS4.6 - 4.85 KBBinaryFTP4.6 - 4.85 KBGeoTIFFHTTPS4.6 - 4.85 KBGeoTIFFThis data set includes AVHRR/HRPT (Advanced Very High Resolution Radiometer/High Resolution Picture Transmission) brightness temperatures and reflectances over the NASA Cold Land Processes Field Experiment (CLPX) Large Regional Study Area (LRSA).VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/nsidc-0152-v001-userguide.pdfCLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances, Version 1 User GuideGET DATAhttps://daacdata.apps.nsidc.org/pub/DATASETS/CLP/data/satellite/nsidc0152_avhrr/HTTPSPROJECT HOME PAGEhttp://nsidc.org/data/clpx/CLPX SiteCEOS IDN DIFVERSION 9.92004-02-012026-08-29NSIDCVersion SummaryInitial releaseNSIDCMinor VersionNSIDCCurrent Version1NSIDCSpatial Reference SystemsN/AN/ANSIDCLevel of ServiceBasicNSIDCFull Dataset CitationCline, D. (2004). <i>CLPX-Satellite: AVHRR/HRPT Brightness Temperatures and Reflectances</i>. (NSIDC-0152, 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/FCK3KVGQPH3O">https://doi.org/10.5067/FCK3KVGQPH3O</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredfalseNSIDCRelated Servicesapplication/vnd.nasa.cmr.umm+jsonfalseamyygillilandmmt_service_12717S1977897447-NSIDCV0NSIDCV06service2025-04-01T22:12:52.112Zhttps://daacdata.apps.nsidc.org/NSIDCV0_DAAC_Data_HTTPS_File_SystemNOT PROVIDED1HTTPS File SystemQuickly download a few files using a web browser, or access the data through a command-line utility such as WGET.https://nsidc.org/data/user-resources/help-center/programmatic-access-guide-data-daacdataappsVIEW RELATED INFORMATIONProgrammatic Data Access GuidePublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESThis is the most current release of this service.DEVELOPERORIGINATORPUBLISHERSERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAACNASA Distributed Active Archive Center (DAAC) at NSIDChttps://nsidc.org/daacNSIDC DAAC Home Pagehttps://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://daacdata.apps.nsidc.org/pub/DATASETS/CLP/data/satellite/nsidc0152_avhrr/