AU_SI25_1

AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids V001

Version 1 eng; usa
  • Abstract
    The AMSR-E/AMSR2 Unified Level-3 25 km product provides sea ice concentration derived from brightness temperatures using the NASA Team 2 (NT2) algorithm for the Northern and Southern Hemisphere. This data set includes six daily brightness temperature fields for channels ranging from 6.9 through 89.0 GHz, three daily sea ice concentration fields, and three daily sea ice concentration difference fields for ascending orbits, descending orbits, and full orbit daily averages. The sea ice concentration difference fields compare the NT2 algorithm with the Bootstrap algorithm. All fields are mapped to 25 km polar stereographic grids. Note: This product uses the Japan Aerospace Exploration Agency (JAXA) AMSR2 Level-1R input brightness temperatures that are calibrated, or unified, across the JAXA AMSR-E and JAXA AMSR2 Level-1R products.
  • Purpose
    Scientific Research
  • DOI

    10.5067/TRUIAL3WPAUP

Data Identification Fields:

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    Processing Level

    Level 3

    Geophysical variables mapped on a grid

    Quality
    Collection Progress

    Planned

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • Spectral/Engineering
    • Microwave
    • Brightness Temperature
    • EARTH SCIENCE
    • Cryosphere
    • Sea Ice
    • Sea Ice Concentration
    • EARTH SCIENCE
    • Oceans
    • Sea Ice
    • Sea Ice Concentration
Other Descriptive Keywords
Toggle Other Descriptive Keywords Fields
ISO Topic Categories
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Additional Attributes
  • AscendingDescendingFlg
    STRING
    Satellite Direction
    Resolution Range Begin Range End Unit of Measure Accuracy

  • EndingPolygonNumber
    INT
    The index number for the last polygon associated with the nominal pass number in the granule
    Resolution Range Begin Range End Unit of Measure Accuracy

  • NominalPassIndex
    INT
    The nominal pass index number for the pass that best describes the spatial location of the granule, where the pass is either the ascending or descending portion of an orbit
    Resolution Range Begin Range End Unit of Measure Accuracy

  • PercentRetrievals
    INT
    Percentage of data points over land where retrievals are done = (number of retrieval points/total number of land points)*100 (computed using a classification mask for mountains, forest, etc.).
    Resolution Range Begin Range End Unit of Measure Accuracy

  • PercentRetrievalsWithinBounds
    INT
    Percentage of land data points where retrievals are done, whose retrievals are within bounds = (number of within-bounds retrieval points/number of retrieval points)*100.
    Resolution Range Begin Range End Unit of Measure Accuracy

  • StartingPolygonNumber
    INT
    The index number for the first polygon associated with the nominal pass number in the granule.
    Resolution Range Begin Range End Unit of Measure Accuracy

  • identifier_product_doi
    STRING
    Digital object identifier that uniquely identifies this data product
    Resolution Range Begin Range End Unit of Measure Accuracy

  • identifier_product_doi_authority
    STRING
    URL of the digital object identifier resolving authority
    Resolution Range Begin Range End Unit of Measure Accuracy

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    GCOM-W1
    Instruments
    • AMSR2
Projects
Project Short Name Campaigns Project Dates
AMSR-E/AMSR2 Unified Data No campaigns listed. 2011-08-25 to 2015-06-07

Temporal Information Fields:

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Spatial Information Fields:

Toggle Spatial Information Fields
    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN GEODETIC
Location Keywords
    • GEOGRAPHIC REGION
    • POLAR

Data Centers

Toggle Data Centers
  • NASA NSIDC DAAC
    ARCHIVER

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    Archiving Data Center

    https://nsidc.org/daac
    • Home Page
  • NASA NSIDC DAAC
    DISTRIBUTOR

    National Snow and Ice Data Center
    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    Archiving Data Center

    https://nsidc.org/daac
    • Home Page
  • NASA/MSFC/AMSR-E SIPS
    PROCESSOR

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

    Originating Data Center

    https://weather.msfc.nasa.gov/AMSR/
    • Home Page
  • NASA/MSFC/AMSR-E SIPS
    ORIGINATOR

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

    Originating Data Center

    https://weather.msfc.nasa.gov/AMSR/
    • Home Page

Data Contacts

Toggle Data Contacts
  • Josephino Comiso
    Technical Contact
    Josephino Comiso

    Laboratory for Hydrospheric Processes
    Cryospheric Sciences Branch
    NASA/Goddard Space Flight Center
    Greenbelt, MD 20771

  • Thorsten Markus
    Technical Contact
    Thorsten Markus

    NASA/Goddard Space Flight Center
    Instrumentation Sciences Branch
    Code 614.6
    Greenbelt, MD 20771

  • NSIDC Services
    Technical Contact
    NSIDC Services

    CIRES, 449 UCB
    University of Colorado
    Boulder, CO 80309-0449

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • Walter Meier
    Technical Contact
    Walter Meier

    Boudler, CO 80309

  • Thorsten Markus
    Technical Contact
    Thorsten Markus

    NASA/Goddard Space Flight Center
    Instrumentation Sciences Branch
    Code 614.6
    Greenbelt, MD 20771

  • Josephino Comiso
    Technical Contact
    Josephino Comiso

    Laboratory for Hydrospheric Processes
    Cryospheric Sciences Branch
    NASA/Goddard Space Flight Center
    Greenbelt, MD 20771

  • Walter Meier
    Technical Contact
    Walter Meier

    Boudler, CO 80309

  • NASA National Snow and Ice Data Center Distributed Active Archive Center
    User Services
    NASA National Snow and Ice Data Center Distributed Active Archive Center

    Boulder, Colorado

    This contact does not have any contact mechanisms listed.

Collection Citations Fields:

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    Collection Citations
    • AMSR-E/AMSR2 Unified L3 Daily 25 km Brightness Temperatures & Sea Ice Concentration Polar Grids V001
      1

      Published by: NASA National Snow and Ice Data Center Distributed Active Archive Center

Metadata Dates
Creation
Last Revision