NSIDC-0105_3

Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3

Version 3 eng; usa
  • Abstract
    This data set includes yearly snow melt onset dates over Arctic sea ice derived from brightness temperatures from the Scanning Multichannel Microwave Radiometer (SMMR), the Special Sensor Microwave/Imager (SSM/I), and the Special Sensor Microwave Imager/Sounder (SSMIS). The introduction of liquid water to snow results in a sharp increase in the emissivity and hence brightness temperature of the snowpack. Snow melt onset is defined as the point in time when microwave brightness temperatures increase sharply due to the presence of liquid water in the snowpack. Data span the years 1979 through 2012 and are in a polar stereographic grid at 25 km resolution. Flat binary, 1-byte integer files and GIF images are accessible via FTP. Several value-added products are also available. Value-added data sets include the following for each pixel: mean melt onset date; latest (maximum) melt onset date; earliest (minimum) melt onset date; range of melt onset dates (the difference between maximum and minimum -- an index of variability); and standard deviation of melt onset date (another index of variability). Graphical representations of value-added data are also available.
  • Purpose
    Scientific Research

Data Identification Fields:

Toggle Data Identification Fields
    Processing Level

    Level 3

    Quality
    Collection Progress

    Planned

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • Oceans
    • Sea Ice
    • Snow Melt
    • EARTH SCIENCE
    • Cryosphere
    • Sea Ice
    • Snow Melt
Other Descriptive Keywords
Toggle Other Descriptive Keywords Fields
ISO Topic Categories
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Acquisition Information Fields:

Toggle Acquisition Information Fields
Platforms
  • Earth Observation Satellites
    DMSP
    Instruments
    • SSM/I
  • Earth Observation Satellites
    DMSP 5D-2/F11
    Instruments
    • SSM/I
  • Earth Observation Satellites
    DMSP 5D-2/F13
    Instruments
    • SSM/I
  • Earth Observation Satellites
    DMSP 5D-2/F8
    Instruments
    • SSM/I
  • Earth Observation Satellites
    DMSP 5D-3/F17
    Instruments
    • SSMIS
  • Earth Observation Satellites
    Nimbus-7
    Instruments
    • SMMR

Temporal Information Fields:

Toggle Temporal Information Fields

Spatial Information Fields:

Toggle Spatial Information Fields
    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN GEODETIC
Location Keywords
    • Ocean
    • Arctic Ocean
    • Geographic Region
    • Polar

Data Centers

Toggle Data Centers
  • National Snow and Ice Data Center
    ARCHIVER

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

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • National Snow and Ice Data Center
    DISTRIBUTOR

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

    • 1 303 492 6199
    • 1 303 492 2468
    • Email

Data Contacts

Toggle Data Contacts
  • Mark
    Technical Contact
    Mark Anderson

    Meteorology/Climatology Program
    Dept. of Geosciences
    University of Nebraska
    Lincoln, NE 68588-0340

    This contact does not have any contact mechanisms listed.

  • Angela
    Technical Contact
    Angela Bliss

    This contact does not have any addresses listed.

  • Sheldon
    Technical Contact
    Sheldon Drobot

    Colorado Center for Astrodynamics Research
    Department of Aerospace Engineering
    431 UCB
    Boulder, CO 80309-0431

    This contact does not have any contact mechanisms listed.

  • Mark
    Technical Contact
    Mark Anderson

    Meteorology/Climatology Program
    Dept. of Geosciences
    University of Nebraska
    Lincoln, NE 68588-0340

    This contact does not have any contact mechanisms listed.

  • Angela
    Technical Contact
    Angela Bliss

    This contact does not have any addresses listed.

  • Sheldon
    Technical Contact
    Sheldon Drobot

    Colorado Center for Astrodynamics Research
    Department of Aerospace Engineering
    431 UCB
    Boulder, CO 80309-0431

    This contact does not have any contact mechanisms listed.

  • 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.

  • NSIDC
    Data Center Contact
    NSIDC Services

    National Snow and Ice Data Center

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

    • 1 303 492 6199
    • 1 303 492 2468
    • Email
  • NSIDC
    Data Center Contact
    NSIDC Services

    National Snow and Ice Data Center

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

    • 1 303 492 6199
    • 1 303 492 2468
    • Email

Collection Citations Fields:

Toggle Collection Citations Fields
    Collection Citations
    • Snow Melt Onset Over Arctic Sea Ice from SMMR and SSM/I-SSMIS Brightness Temperatures, Version 3
      3

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