NISE_Collection 4 and 5

NSIDC Near Real-Time Global Ice and Snow Extent (NISE) [MODIS Ancillary Data]

Version Collection 4 and 5 eng
  • Abstract
    The Near Real-Time SSM/I EASE-Grid Daily Global Ice Concentration and Snow Extent product (Near real-time Ice and Snow Extent, NISE) provides daily, global near real-time maps of sea ice concentrations and snow extent. The National Snow and Ice Data Center (NSIDC) creates the NISE product using passive microwave data from the Defense Meteorological Satellite Program (DMSP) F13 Special Sensor Microwave/Imager (SSM/I). Sea ice concentration and snow extent maps are provided in two 25 km azimuthal, equal-area projections: the Southern Hemisphere 25 km low resolution (Sl) and Northern Hemisphere 25 km low resolution (Nl) Equal-Area Scalable Earth-Grids (EASE-Grids). Data in Hierarchical Data Format - Earth Observing System (HDF-EOS) format, and browse files in GIF and HDF formats, are updated daily and are available via ftp and NSIDC's Data Pool for two weeks after initial posting. Users can also order HDF-EOS data files from 01 January 2000 through present via the Web-based Earth Observing System (EOS) Data Gateway. Sea ice concentrations are mapped using the NASA Team algorithm. Snow extent is mapped separately using an algorithm developed for Scanning Multichannel Microwave Radiometer (SMMR) data and modified for use with SSM/I data (Chang, Foster, and Hall 1987; Armstrong and Brodzik 2001). The NISE product is updated daily using the best available data from the past five days. NASA provided funding for the production of this data set through the NSIDC Distributed Active Archive Center (DAAC). NSIDC requests that prospective data users explain how the data will be used and agree to contribute comments regarding the usefulness, relevance, and accuracy of the data. Such feedback is essential to ensure ongoing product improvement. Publication of research results must appropriately acknowledge use of the NISE product. Data set information: http://modis.gsfc.nasa.gov/data/dataprod/
  • Version Description
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Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

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    In Work

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • CRYOSPHERE
    • SNOW/ICE
    • ICE EXTENT
    • EARTH SCIENCE
    • TERRESTRIAL HYDROSPHERE
    • SNOW/ICE
    • ICE EXTENT
    • EARTH SCIENCE
    • OCEANS
    • SEA ICE
    • ICE EXTENT
Other Descriptive Keywords
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ISO Topic Categories
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Additional Attributes
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Acquisition Information Fields:

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Platforms
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    Instruments
    • MODIS
  • TERRA
    Instruments
  • AQUA
    Instruments
Projects
Project Short Name Campaigns Project Dates
EOS No campaigns listed. No dates provided.
EOSDIS No campaigns listed. No dates provided.
AQUA No campaigns listed. No dates provided.
TERRA No campaigns listed. No dates provided.

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Location Keywords
    • GEOGRAPHIC REGION
    • GLOBAL

Data Centers

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  • NASA/GSFC/SED/ESD/HBSL/BISB/LAADS
    ARCHIVER
    L1 and Atmosphere Archive and Distribution System,Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

Data Contacts

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  • Technical Contact
    LAADS USER SUPPORT TEAM

    LAADS User Support Team
    NASA/GSFC
    Mail Code: 619
    Greenbelt, MD 20771

    • Email
    • 1-800-596-8132
    • 301-794-7035
  • GANG
    Metadata Author
    GANG YE, PH.D

    This contact does not have any addresses listed.

  • Data Center Contact
    LAADS USER SUPPORT TEAM

    NASA/GSFC/SED/ESD/HBSL/BISB/LAADS

    LAADS User Support Team
    NASA/GSFC
    Mail Code: 619
    Greenbelt, MD 20771

    • Email
    • 1-800-596-8132
    • 301-794-7035

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