2026-05-21T14:41:00Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/NSIDC-0116.0042026-03-03T21:04:47Zv0_daacv0_allnasa_nsidc_daac
NSIDC-0116.004Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion VectorsTschudi, M., Meier, W. N., Stewart, J. S., Fowler, C. & Maslanik, J.Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors2019-03-15Boulder, Colorado USANASA NSIDC DAAC: NASA National Snow and Ice Data Center Distributed Active Archive Center4false10.5067/INAWUWO7QH7Bhttps://nsidc.org/sites/default/files/documents/user-guide/nsidc-0116-v004-userguide.pdfNSIDC-0116Technical ContactNSIDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468CIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAEARTH SCIENCECRYOSPHERESNOW/ICEICE VELOCITY EARTH SCIENCEOCEANSSEA ICESEA ICE MOTION Climatology/Meteorology/AtmosphereAMSR-EAVHRRBuoysDAACEASE-Grid-projectEASE-Grid Sea Ice-projectEOSDISGriddedGridded DataIce MotionNASANASA PathfinderNCEP/NCAR Reanalysis DataNOAA/NASA PathfinderNSIDCPassive MicrowavePassive Microwave DataRemote SensingSea Ice MotionSea Ice PM Other-projectSea Ice Prediction Network-projectSea Ice VelocitySea Surface Wind SpeedsSIPN ice motion-projectSIPN-projectSMMRSMMR and SSM/I-SSMIS-projectsmmr-ssmi-projectSMMR/SSMIS EASE Snow&Ice-projectSSM/ISSMISSurface Windswind velocity as vectorsAMSR-EAdvanced Microwave Scanning Radiometer-EOSAVHRRAdvanced Very High Resolution RadiometerDRIFTING BUOYSSMMRScanning Multichannel Microwave RadiometerSSM/ISpecial Sensor Microwave/ImagerSSMISSpecial Sensor Microwave Imager/SounderAQUAEarth Observing System, AQUABUOYSDMSP 5D-2/F11Defense Meteorological Satellite Program-F11DMSP 5D-2/F13Defense Meteorological Satellite Program-F13DMSP 5D-2/F8Defense Meteorological Satellite Program-F8DMSP 5D-3/F17Defense Meteorological Satellite Program-F17NOAA-11National Oceanic & Atmospheric Administration-11NOAA-12National Oceanic & Atmospheric Administration-12NOAA-14National Oceanic & Atmospheric Administration-14NOAA-9National Oceanic & Atmospheric Administration-9Nimbus-7Nimbus-71978-11-012024-12-31active-90-37-18018029.790-180180OCEANARCTIC OCEANCONTINENTANTARCTICAVariesVaries1 day25 km25 km1 dayQuality information for this data set varies by sensor. Refer to the data set guide documentation for accuracy estimates of ice motion from each type of sensor.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.EnglishNASA NSIDC DAACNASA 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 ColoradoBoulderCO80309-0449USAFTPNetCDFFTPPNGCavalieri, D. J., C. L. Parkinson, P. Gloersen, J. C. Comiso, and H. J. Zwally. 1999. Deriving long-term time series of sea ice cover from satellite passive-microwave multisensor data sets, J. Geophys. Res., 104(C7), 15803-15814, doi:10.1029/1999JC900081.
Cavalieri, D., C. Parkinson, P. Gloersen, and H. J. Zwally. 1996, updated yearly. Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data, Version 1. [indicate subset used]. Boulder, Colorado USA: NASA DAAC at the National Snow and Ice Data Center. http://dx.doi.org/10.5067/8GQ8LZQVL0VL.
Cracknell, A. 1997. The Advanced Very High Resolution Radiometer. London: Taylor and Francis.
Emery, W., C. Fowler, and J. Maslanik. 1995. Satellite Remote Sensing of Ice Motion, in Oceanographic Applications of Remote Sensing, ed. Motoyoshi Ikeda and Frederic W. Dobson. CRC Press, Boca Raton.
Isaaks, E., and R. M. Srivastava. 1989. An Introduction to Applied Geostatistics. New York: Oxford University Press.
Kalnay, E., M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, A. Leetmaa, R. Reynolds, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. Mo, C. Ropelewski, J. Wang, R. Jenne, and D. Joseph. 1996. The NCEP/NCAR 40-Year Reanalysis Project. Bulletin of the American Meteorological Society, 77, 437–471.
Kidwell, K. 1995. NOAA Polar Orbiter Data User's Guide. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, NESDIS.
Krasnopolsky, V. M., L. C. Breaker, and W. H. Gemmill. 1995. A Neural Network as a Nonlinear Transfer Function Model for Retrieving Surface Wind Speeds from the Special Sensor Microwave Imager. Journal of Geophysical Research, 100(C6), 11,033–11,045. PDF
Maslanik, J., C. Fowler, J. Key, T. Scambos, T. Hutchinson, and W. Emery. 1998. AVHRR-based Polar Pathfinder Products for Modeling Applications. Annals of Glaciology 25:388-392
Rosborough, G., D. Baldwin, and W. Emery. 1994. Precise AVHRR Image Navigation. IEEE Transactions in Geosciences and Remote Sensing 32(3):644-657.
Schweiger, A., C. Fowler, J. Key, J. Maslanik, J. Francis, R. Armstrong, M. J. Brodzik, T. Scambos, T. Haran, M. Ortmeyer, S. Khalsa, D. Rothrock, and R. Weaver. 1999. P-Cube: A Multisensor Data Set for Polar Climate Research. Proceedings on the 5th Conference on Polar Meteorology and Oceanography, American Meteorological Society, Dallas, TX, 15-20 Jan., 136-141.
Thorndike, A. S., and R. Colony. 1982. Sea Ice Motion in Response to Geostrophic Winds. J. Geophys. Res. 87(C8):5845–5852, doi:10.1029/JC087iC08p05845.
Tschudi, M. A., Meier, W. N., and Stewart, J. S. 2019. An enhancement to sea ice motion and age products. The Cryosphere Discussion, in review. doi: 10.5194/tc-2019-40.This data set contains daily and weekly sea ice motion vectors, as well as browse images representing the weekly data. Input data sources, derived from AVHRR, AMSRE, SMMR, SSMI, and SSMI/S sensors; IABP buoys; and NCEP/NCAR Reanalysis forecasts, used to generate the daily and weekly sea ice motion estimates are also included. For more recent data, see the Quicklook Arctic Weekly EASE-Grid Sea Ice Motion Vectors data set (https://nsidc.org/data/nsidc-0748).VIEW RELATED INFORMATIONhttps://nsidc.org/sites/default/files/documents/user-guide/nsidc-0116-v004-userguide.pdfPolar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors, Version 4 User GuideGET DATAhttps://daacdata.apps.nsidc.org/pub/DATASETS/nsidc0116_icemotion_vectors_v4/HTTPSUSA/NASACEOS IDN DIFVERSION 9.92019-03-152026-03-03NSIDCVersion SummaryChanges to this version include:
Data are provided in georeferenced netCDF format rather than ASCII and raw binary files
Merge 15 highest-weighted rather than 15 closest input vectors
Improved filtering of SSMI inputs
Each buoy provides one daily motion estimate instead of separate noon and midnight estimates
Monthly ice motion estimates are no longer providedNSIDCMinor Version4.1<ul>This minor version update coincided with no science changes. Changes to this version include:
<li>The "V" field variable type was changed from a 2-byte integer to a 4-byte floating point</li>
<li>Summaries of "V" and "U" fields were updated </li>
<li>File naming conventions were updated to include the version number and start / end dates.</li>
<li>File level metadata was updated to reflect the current version number.</li></ul>1978-10-252022-12-311NSIDCCurrent Version1NSIDCSpatial Reference SystemsEPSG:3408NSIDC EASE-Grid NorthEPSG:3409NSIDC EASE-Grid SouthNSIDCLevel of ServiceComprehensiveNSIDCFull Dataset CitationTschudi, M., Meier, W. N., Stewart, J. S., Fowler, C. & Maslanik, J. (2019). <i>Polar Pathfinder Daily 25 km EASE-Grid Sea Ice Motion Vectors</i>. (NSIDC-0116, Version 4). [Data Set]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. <a href="https://doi.org/10.5067/INAWUWO7QH7B">https://doi.org/10.5067/INAWUWO7QH7B</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/nsidc0116_icemotion_vectors_v4/NSIDCRelated Toolsapplication/vnd.nasa.cmr.umm+jsonfalsecrumlydease_toolsTL3915895804-NSIDC_CPRDNSIDC_CPRD1tool2025-12-16T18:38:49.912ZDOWNLOAD SOFTWAREhttps://github.com/nsidc/easegrids-easeconvDistributionURLNSIDC_CPRD_EASE_ToolsDownloadable Tool0.3 EASE-Grid Data Geolocation ToolsGeolocate and display EASE-Grid and EASE-Grid 2.0 data sets with IDL software.https://nsidc.org/support/faq/does-nsidc-have-tools-geolocating-and-displaying-ease-grid-data-setsVIEW RELATED INFORMATIONDoes NSIDC have tools for geolocating and displaying EASE-Grid data sets?PublicationURLDATA ANALYSISDATA ANALYSIS AND VISUALIZATIONEARTH SCIENCE SERVICESSERVICE PROVIDERNSIDC DAAC User ServicesEmailnsidc@nsidc.orgDEVELOPERNASA National Snow and Ice Data Center Distributed Active Archive Centerhttps://nsidc.org/daac/NASA NSIDC DAAC2013-12-18T00:00:00.000ZThis is the most current release of this tool.https://cdn.earthdata.nasa.gov/umm/tool/v1.0UMM-T1.0IDLhttps://github.com/nsidc/easegrids-easeconv