Identification_Information:
   Dataset_Identifier: NSIDC-0081

   Citation: 
      Citation_Information: 
         Originator: Maslanik, J. and J. Stroeve. 
         Publication_Date: 19990101
         Title: Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
         Publication_Information: 
            Publication_Place: Boulder, Colorado USA
            Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
         Online_Linkage: http://nsidc.org/data/nsidc-0081.html

   Description: 
      Abstract:
         









 This data set provides a 
         near-real-time (NRT) map of sea ice concentrations for both the Northern and 
         Southern Hemispheres. The near-real-time passive microwave brightness 
         temperature data are acquired with the Special Sensor Microwave Imager/Sounder 
         (SSMIS) on board the Defense Meteorological Satellite Program (DMSP) F17 
         satellite. The SSMIS instrument is the next generation Special Sensor 
         Microwave/Imager (SSM/I) instrument. SSMIS data are received daily from the 
         Comprehensive Large Array-data Stewardship System (CLASS) at the National 
         Oceanic and Atmospheric Administration (NOAA) and are gridded onto a polar 
         stereographic grid. Investigators generate sea ice concentrations from these 
         data using the NASA Team algorithm.

         These data are stored as one-byte flat scaled binary arrays with one byte per 
         pixel, at a resolution of 25 km. For each data file, a corresponding PNG image 
         file is provided. These data are available via FTP for the most recent three 
         to six months and are retained on the FTP site until NSIDC's Sea Ice 
         Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data 
         (preliminary data) become available for the same time period.

         These data are primarily meant to provide a best estimate of current ice and 
         snow conditions based on information and algorithms available at the time the 
         data are acquired. Near-real-time products are not intended for operational 
         use in assessing sea ice conditions for navigation and should be used with 
         caution in extending the sea ice time series in NSIDC's Sea Ice Concentrations 
         from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave Data.

      Purpose: scientific research
      Documentation: 
         User's_Guide: 
            Citation_Information: 
               Originator: Maslanik, J. and J. Stroeve. 
               Publication_Date: 19990101
               Title: Near-Real-Time DMSP SSM/I-SSMIS Daily Polar Gridded Sea Ice Concentrations
               Publication_Information: 
                  Publication_Place: Boulder, Colorado USA
                  Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
               Online_Linkage: http://nsidc.org/data/docs/daac/nsidc0081_ssmi_nrt_seaice.gd.html

   Time_Period_of_Content:
      Time_Period_Information:
         Range_of_Dates/Times:
            Beginning_Date: 20131001
            Ending_Date: 20140917
      Currentness_Reference: publication date

   Status:
      Progress: In work
      Maintenance_and_Update_Frequency: Unknown

   Spatial_Domain:
      Bounding_Coordinates:
         West_Bounding_Coordinate: -180
         East_Bounding_Coordinate: 180
         North_Bounding_Coordinate: 90
         South_Bounding_Coordinate: -90

   Keywords:
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Science Keywords
         Theme_Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
         Theme_Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
         Theme_Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
         Theme_Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Project Keywords
         Theme_Keyword: EOSDIS > Earth Observing System Data Information System
         Theme_Keyword: ESIP > Earth Science Information Partners Program
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
         Theme_Keyword: SSM/I > Special Sensor Microwave/Imager
         Theme_Keyword: SSMIS > Special Sensor Microwave Imager/Sounder
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
         Theme_Keyword: DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
         Theme_Keyword: DMSP 5D-2/F15 > Defense Meteorological Satellite Program-F15
         Theme_Keyword: DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
      Theme:
         Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
         Theme_Keyword: climatologyMeteorologyAtmosphere
         Theme_Keyword: oceans
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: Antarctic
         Theme_Keyword: Arctic
         Theme_Keyword: DMSP
         Theme_Keyword: Gridded Data
         Theme_Keyword: Ice
         Theme_Keyword: Ice Concentration
         Theme_Keyword: Near Real-time
         Theme_Keyword: Passive Microwave
         Theme_Keyword: Polar
         Theme_Keyword: Polar Stereographic
         Theme_Keyword: Remote Sensing
         Theme_Keyword: Sea Ice
         Theme_Keyword: Sea Ice Concentration
         Theme_Keyword: SMMR
         Theme_Keyword: Special Sensor Microwave Imager/Sounder
         Theme_Keyword: SSM/I
         Theme_Keyword: SSMIS
      Place:
         Place_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
         Place_Keyword: Continent > Antarctica
         Place_Keyword: Geographic Region > Arctic
         Place_Keyword: Geographic Region > Polar

   Access_Constraints: None

   Use_Constraints:

      These data are intended to facilitate time-sensitive research dependent upon 
      precise detection of seasonal polar sea ice formation and break up. These data 
      are primarily meant to provide a best estimate of current ice and snow 
      conditions based on information and algorithms available at the time the data 
      are acquired. Near-real-time products are not intended for operational use in 
      assessing sea ice conditions for navigation and should be used with caution in 
      extending the sea ice time series. For historical SMMR and SSM/I sea ice 
      concentration data, please see Sea Ice Concentrations from Nimbus-7 SMMR and 
      DMSP SSM/I Passive Microwave Data.


   Point_of_Contact:
      Contact_Information:
         Contact_Person_Primary:
            Contact_Person: NSIDC User Services
            Contact_Organization: National Snow and Ice Data Center
         Contact_Address:
            Address_Type: mailing
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 x
         Contact_Facsimile_Telephone: 1 303  492-2468 x
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

Distribution_Information:
   Distributor:
      Contact_Information:
         Contact_Organization_Primary:
            Contact_Organization: National Snow and Ice Data Center
            Contact_Person: NSIDC User Services
         Contact_Address:
            Address_Type: mailing
            Address: National Snow and Ice Data Center
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 
         Contact_Facsimile_Telephone: 1 303  492-2468 
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

   Resource_Description: NSIDC-0081

   Distribution_Liability:
      NSIDC cannot assume liability for any damages caused by any errors or 
      omissions in the data, nor as a result of the failure of the data to function 
      on a particular system. NSIDC makes no warranty, expressed or implied, nor 
      does the fact of distribution constitute such a warranty.

   Standard_Order_Process:
      Digital_Form:
         Digital_Transfer_Information:
            Format_Name: PNG
         Digital_Transfer_Option:
            Online_Option:
               Computer_Contact_Information:
                  Network_Address:
                     Network_Resource_Name: ftp://sidads.colorado.edu/pub/DATASETS/nsidc0081_nrt_nasateam_seaice/
      Fees: None

   Standard_Order_Process:
      Digital_Form:
         Digital_Transfer_Information:
            Format_Name: Binary
         Digital_Transfer_Option:
            Online_Option:
               Computer_Contact_Information:
                  Network_Address:
                     Network_Resource_Name: ftp://sidads.colorado.edu/pub/DATASETS/nsidc0081_nrt_nasateam_seaice/
      Fees: None

Metadata_Reference_Information:
   Metadata_Date: 20140828

   Metadata_Review_Date: 20140828

   Metadata_Contact: 
      Contact_Information:
         Contact_Person_Primary:
            Contact_Person: NSIDC User Services
            Contact_Organization: National Snow and Ice Data Center
         Contact_Address:
            Address_Type: mailing
            Address: National Snow and Ice Data Center
            Address: CIRES, 449 UCB
            Address: University of Colorado
            City: Boulder
            State_or_Province: CO
            Postal_Code: 80309-0449
            Country: USA
         Contact_Voice_Telephone: 1 303 492-6199 
         Contact_Facsimile_Telephone: 1 303  492-2468 
         Contact_Electronic_Mail_Address: nsidc@nsidc.org

   Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata

   Metadata_Standard_Version: FGDC-STD-012-2002