2026-04-21T04:56:59Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/MOD10A2.0052026-03-03T21:04:50Zcumulusecsretirednasa_nsidc_daac
MOD10A2.005MODIS/Terra Snow Cover 8-Day L3 Global 500m SIN GridHall, D. K., Salomonson, V. V. & Riggs, G. A.MODIS/Terra Snow Cover 8-Day L3 Global 500m SIN Grid2006-12-18Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center5false10.5067/C574UGKQQU1Thttps://nsidc.org/sites/default/files/mod10a2-v005-userguide.pdfMOD10A2InvestigatorDorothyK.HallNational Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC)Mail stop 614.1GreenbeltMD20771InvestigatorVinceV.Salomonsonvincent.salomonson@utah.edu1-801-585-9492University of UtahDepartment of Meteorology135 S 1460 E, Rm 809Salt Lake CityUT84112USInvestigatorGeorgeA.RiggsGeorge.A.Riggs@nasa.gov1-301-614-5650NASA Goddard Space Flight Center (GSFC)Science Systems and Applications, Inc.Code 614.1GreenbeltMD20771USATechnical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCETERRESTRIAL HYDROSPHERESNOW/ICESNOW COVER EARTH SCIENCECRYOSPHERESNOW/ICESNOW COVER Imagery/Base Maps/Earth CoverMODIS-projectsnow-coverMODISModerate-Resolution Imaging SpectroradiometerTerraEarth Observing System, Terra (AM-1)2000-02-242017-01-02deprecated-9090-180180Geographic RegionGlobal Land500 m500 m8 dayQuality indicators for MODIS snow data can be found in the following places:
* AutomaticQualityFlag and the ScienceQualityFlag metadata objects and their corresponding explanations: AutomaticQualityFlagExplanation and ScienceQualityFlagExplanation located in the CoreMetadata.0 global attributes
* Custom local attributes associated with each Scientific Data Set, for example, Maximum Snow Extent.
These quality indicators are generated during production or in post-production scientific and quality checks of the data product. For more information on local and global attributes, go to one of the following documents:
* MOD10A2 and MYD10A2 Local Snow Cover Attributes, Version 5
* MOD10A2 and MYD10A2 Global Snow Cover Attributes, Version 5
The AutomaticQualityFlag is automatically set according to conditions for meeting data criteria in the snow mapping algorithm. In most cases, the flag is set to either Passed or Suspect, and in rare instances it may be set to Failed. Suspect means that a significant percentage of the data were anomalous and that further analysis should be done to determine the source of anomalies. The AutomaticQualityFlagExplanation contains a brief message explaining the reason for the setting of the AutomaticQualityFlag. The ScienceQualityFlag and the ScienceQualityFlagExplanation are set after production, either after an automated QA program is run or after the data product is inspected by a qualified snow scientist. Content and explanation of this flag are dynamic so it should always be examined if present.
The algorithm tests for a variety of anomalous conditions and sets the pixel value accordingly if such conditions are detected. Summary statistics about missing data, the percent cloud cover, the percent of good or other quality data, and snow cover percent are calculated and placed in the metadata for each product.
The NASA Goddard Space Flight Center: MODIS Land Quality Assessment Web site provides updated quality information for each product.EnglishNASA 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 ColoradoBoulderCO80309-0449USAFTP0.05 - 3 MBHDF-EOS2Diner, D. J., J. V. Martonchik, C. Borel, S. A. W. Gerstl, H. R. Gordon, Y. Knyazikhin, R. Myneni, B. Pinty, and M. M. Verstraete. 1999. MISR Level-2 Surface Retrieval Algorithm Theoretical Basis Document. Pasadena, CA: Jet Propulsion Laboratory.
Earth Science Data and Information System (ESDIS). 1996. EOS Ground System (EGS) Systems and Operations Concept. Greenbelt, MD: Goddard Space Flight Center.
Hall, Dorothy K., George A. Riggs, and Vincent V. Salomonson. September 2001a. Algorithm Theoretical Basis Document (ATBD) for the MODIS Snow-, Lake Ice- and Sea Ice-Mapping Algorithms. Greenbelt, MD: Goddard Space Flight Center.
Hall, Dorothy K. and J. Martinec. 1985. Remote Sensing of Ice and Snow. London: Chapman and Hall.
Hall, Dorothy K., J. L. Foster, D. L. Verbyla, A. G. Klein, and C. S. Benson. 1998. Assessment of Snow Cover Mapping Accuracy in a Variety of Vegetation Cover Densities in Central Alaska. Remote Sensing of the Environment 66:129-137.
Hall, Dorothy K., J. L. Foster, Vincent V. Salomonson, A. G. Klein, and J. Y. L. Chien. 2001b. Development of a Technique to Assess Snow-Cover Mapping Accuracy From Space. IEEE Transactions on Geoscience and Remote Sensing 39(2):232-238.
Hall, Dorothy K. and George A. Riggs. 2006. Assessment of Errors in the MODIS Suite of Snow-Cover Products. Hydrological Processes, in press.
Hapke, B. 1993. Theory of Reflectance and Emittance Spectroscopy. Cambridge: Cambridge University Press.
Klein, A. MODIS Snow Albedo Prototype. 2003.
Klein, A. G. and Julienne Stroeve. 2002. Development and Validation of a Snow Albedo Algorithm for the MODIS Instrument. Annals of Glaciology 34:45-52. Klein, A. G., Dorothy K. Hall, and George A. Riggs. 1998. Improving Snow-Cover Mapping in Forests Through the Use of a Canopy Reflectance Model. Hydrologic Processes 12(10-11):1723-1744.
Markham, B. L. and J. L. Barker. 1986. Landsat MSS and TM Post-Calibration Dynamic Ranges, Exoatmospheric Reflectances and At-Satellite Temperatures. EOSAT Technical Notes 1:3-8.
MODIS Characterization Support Team (MCST). 2000. MODIS Level-1B Product User's Guide for Level-1B Version 2.3.x Release 2. MCST Document #MCM-PUG-01-U-DNCN.
Pearson II, F. 1990. Map Projections: Theory and Applications. Boca Raton, FL. CRC Press, Inc.
Riggs, George A., Dorothy K. Hall, and Vincent V. Salomonson. January 2006. MODIS Snow Products User Guide for Collection 4 Data Products.
United States Geological Survey. 'Sinusoidal Equal Area.' Map Projections. 2003. http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#sinusoidal
Wiscombe, W. J. and S. G. Warren. 1980. A Model for the Spectral Albedo of Snow I: Pure Snow. Journal of the Atmospheric Sciences 37:2712-2733.The MODIS/Terra Snow Cover 8-Day L3 Global 500m Grid (MOD10A2) data set contains data fields for maximum snow cover extent over an eight-day compositing period and a chronology of snow occurrence observations in compressed Hierarchical Data Format-Earth Observing System (HDF-EOS) format, along with corresponding metadata. MOD10A2 consists of 1200 km by 1200 km tiles of 500 m resolution data gridded in a sinusoidal map projection. The Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover data are based on a snow mapping algorithm that employs a Normalized Difference Snow Index (NDSI) and other criteria tests.VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/mod10a2-v005-userguide.pdfMODIS/Terra Snow Cover 8-Day L3 Global 500m SIN Grid, Version 5 User GuidePROJECT HOME PAGEhttp://nsidc.org/data/modis/MODIS Data at NSIDCCEOS IDN DIFVERSION 9.92006-12-182026-03-03NSIDCVersion SummaryNSIDCMinor VersionNSIDCLevel of ServiceNo Data AccessNSIDCFull Dataset CitationHall, D. K., Salomonson, V. V. & Riggs, G. A. (2006). <i>MODIS/Terra Snow Cover 8-Day L3 Global 500m SIN Grid</i>. (MOD10A2, Version 5). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/C574UGKQQU1T">https://doi.org/10.5067/C574UGKQQU1T</a>. [<i><describe subset used if applicable></i>].NSIDCRetiredtrueNSIDCRelated Servicesapplication/vnd.nasa.cmr.umm+jsonfalseamy.steikermmt_service_25004S2472217299-NSIDC_CPRDNSIDC_CPRD1service2022-09-20T22:05:06.185Zs3://nsidc-cumulus-prod-protected/NSIDC_CPRD_S3NOT PROVIDED1.0NASA Earthdata Cloud (AWS S3)Access data directly from the NASA Earthdata Cloud via Amazon Web Services Simple Storage Service (AWS S3). This access option is only available when working within the us-west-2 region and requires additional AWS S3 credentials.https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guideVIEW RELATED INFORMATIONNASA Earthdata Cloud Data Access GuidePublicationURLhttps://data.nsidc.earthdatacloud.nasa.gov/s3credentialsVIEW RELATED INFORMATIONAWS S3 CredentialsPublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESThis is the most current release of this service. Last updated date is unknown.SERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAAChttps://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guideapplication/vnd.nasa.cmr.umm+jsonfalsebookerlmmt_service_52052S3107386427-NSIDC_CPRDNSIDC_CPRD3service2024-12-03T17:04:33.698Zhttps://cmr.earthdata.nasa.gov/virtual-directory/collections/NSIDC_CPRD_HTTPS_File_SystemNOT PROVIDED1HTTPS File SystemQuickly download a few files using a web browser, or access data through a command-line utility such as WGET.https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guide#anchor-download-to-a-local-computer-from-earthdata-cloudVIEW RELATED INFORMATIONNASA Earthdata Cloud Data Access GuidePublicationURLUSER SERVICESNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESSee https://github.com/nasa/Common-Metadata-Repository/releases for more information on the latest version.DEVELOPERMaintenance and Development, Earth Observing System Data and Information System, Earth Observing System,Goddard Space Flight Center, NASANASA/GSFC/EOS/EOSDIS/EMDORIGINATORPUBLISHERSERVICE PROVIDERNASA National Snow and Ice Data Center Distributed Active Archive CenterNASA NSIDC DAACNSIDC DAAC home pagehttps://nsidc.org/daacNASA Distributed Active Archive Center (DAAC) at NSIDC home page.https://cdn.earthdata.nasa.gov/umm/service/v1.4UMM-S1.4https://nsidc.org/data/user-resources/help-center/nasa-earthdata-cloud-data-access-guide#anchor-download-to-a-local-computer-from-earthdata-cloudNSIDCRelated Toolsapplication/vnd.nasa.cmr.umm+jsonfalsembeigmmt_tool_50907TL3010466318-NSIDC_CPRDNSIDC_CPRD4tool2024-05-28T17:29:12.271Zhttps://zenodo.org/badge/latestdoi/399867529DOWNLOAD SOFTWAREhttps://earthaccess.readthedocs.io/en/latest/DistributionURLNSIDC_CPRD_EARTHACCESSDownloadable Tool0.9.0earthaccessearthaccess is a python library to search and access NASA Earth science data with just a few lines of code.https://github.com/nsidc/earthaccessVIEW RELATED INFORMATIONGitHub RepositoryPublicationURLDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESDATA SEARCHDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESPUBLISHERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgPUBLISHERNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daac/NASA NSIDC DAACPUBLISHERNational Snow and Ice Data Centerhttp://nsidc.orgNSIDCDEVELOPERAlaska Satellite Facilityhttps://www.asf.alaska.edu/ASFDEVELOPERInstitute for the Study of Earth, Oceans, and Space, University of New Hampshirehttp://www.eos.unh.edu/UNH/EOSDEVELOPERAtmospheric Science Data Center, Science Directorate, Langley Research Center, NASAhttps://asdc.larc.nasa.gov/NASA/LARC/SD/ASDCMIT License
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SOFTWARE.2024-02-29T00:00:00.000ZAs a condition of use, we request that you properly cite the earthaccess library to acknowledge the creators. Formal citations also make it easier for us to track the use and impact of our data and tools, and helps us report data distribution activity and tool usage metrics to funding agencies.
If you have used earthaccess in your research, please cite as:
Barrett, A., Battisto, C., Bourbeau, J., Fisher, M., Kaufman, D., Kennedy, J., Lopez, L., Lowndes, J., Scheick, J., & Steiker, A. (2024). earthaccess (Version 0.9.0) [Computer software]. https://doi.org/10.5281/zenodo.8365009
See https://github.com/nsidc/earthaccess/releases for more information on the latest version.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0Python3.8 or higherhttps://earthaccess.readthedocs.io/en/latest/application/vnd.nasa.cmr.umm+jsonfalsecrumlydmmt_tool_12821TL4019517520-NSIDC_CPRDNSIDC_CPRD1tool2026-02-11T17:45:02.724ZGOTO WEB TOOLhttps://search.earthdata.nasa.gov/searchDistributionURLNSIDC_CPRD_NASA_Earthdata_SearchWeb User Interface1NASA Earthdata SearchSearch and order data from all NASA DAACs using spatial and temporal filters in a map interface. Reformatting, reprojecting, and subsetting options are available for some data sets.https://nsidc.org/support/how/search-order-and-customize-nsidc-daac-data-nasa-earthdata-searchVIEW RELATED INFORMATIONHow to search, order, and customize data with NASA Earthdata SearchPublicationURLDATA VISUALIZATIONDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESDATA SEARCHDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESDATA ACCESS/RETRIEVALDATA MANAGEMENT/DATA HANDLINGEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgSERVICE PROVIDEREarthdata Service DeskEmailsupport@earthdata.nasa.govAUTHORDEVELOPERORIGINATORPUBLISHERMaintenance and Development, Earth Observing System Data and Information System, Earth Observing System,Goddard Space Flight Center, NASAhttp://newsroom.gsfc.nasa.gov/NASA/GSFC/EOS/EOSDIS/EMDChromeFirefoxSafariThis is the most current release of this tool.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0https://search.earthdata.nasa.gov/search