Identification_Information:
   Dataset_Identifier: AE_SI25

   Citation: 
      Citation_Information: 
         Originator: Cavalieri, D. J., T. Markus, and J. C. Comiso. 
         Publication_Date: 20140701
         Title: AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids
         Edition: 3
         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/ae_si25.html
         Online_Linkage: http://dx.doi.org/10.5067/AMSR-E/AE_SI25.003

   Description: 
      Abstract:
         The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) 
         instrument on the NASA Earth Observing System (EOS) Aqua satellite provides 
         global passive microwave measurements of land, ocean, and atmospheric 
         variables for the investigation of water and energy cycles.

         This Level-3 gridded product (AE_SI25) includes brightness temperatures at 6.9 
         through 89.0 GHz and sea ice concentrations. Data are mapped to a polar 
         stereographic grid at 25 km spatial resolution. All variables include daily 
         ascending averages, daily descending averages, and daily averages. Data are 
         stored in HDF-EOS format and are available from 01 June 2002 to 4 October 2011 
         via FTP.

      Purpose: scientific research
      Documentation: 
         User's_Guide: 
            Citation_Information: 
               Originator: Cavalieri, D. J., T. Markus, and J. C. Comiso. 
               Publication_Date: 20140701
               Title: AMSR-E/Aqua Daily L3 25 km Brightness Temperature & Sea Ice Concentration Polar Grids
               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/ae_si25_25km_tb_and_sea_ice.gd.html

   Time_Period_of_Content:
      Time_Period_Information:
         Range_of_Dates/Times:
            Beginning_Date: 20020601
            Ending_Date: 20111004
      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 > Oceans > Sea Ice > Sea Ice Concentration
         Theme_Keyword: EARTH SCIENCE > Spectral/Engineering > Microwave > Brightness Temperature
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Project Keywords
         Theme_Keyword: EOS > Earth Observing System
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Instrument Keywords
         Theme_Keyword: AMSR-E > Advanced Microwave Scanning Radiometer-EOS
      Theme:
         Theme_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Platform Keywords
         Theme_Keyword: AQUA > Earth Observing System, AQUA
      Theme:
         Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
         Theme_Keyword: climatologyMeteorologyAtmosphere
      Theme:
         Theme_Keyword_Thesaurus: None
         Theme_Keyword: AE_SI25
         Theme_Keyword: AMSR-E
         Theme_Keyword: Antarctic Sea Ice
         Theme_Keyword: Aqua
         Theme_Keyword: Arctic Sea Ice
         Theme_Keyword: BRIGHTNESS TEMPERATURES
         Theme_Keyword: DAAC
         Theme_Keyword: EOSDIS
         Theme_Keyword: EOS PM-1
         Theme_Keyword: Imagery
         Theme_Keyword: Leads
         Theme_Keyword: Modified Bootstrap Algorithm
         Theme_Keyword: Modified NASA Team Algorithm
         Theme_Keyword: NASA
         Theme_Keyword: NSIDC
         Theme_Keyword: Passive Microwave Radiation
         Theme_Keyword: Passive Microwave Sea Ice Data
         Theme_Keyword: Polar Sea Ice
         Theme_Keyword: Polynyas
         Theme_Keyword: Radiance
         Theme_Keyword: Remote Sensing
         Theme_Keyword: Sea Ice Concentrations
         Theme_Keyword: Sea Ice Extent
         Theme_Keyword: Sea Ice Variability
         Theme_Keyword: Southern Ocean
         Theme_Keyword: Tbs
      Place:
         Place_Keyword_Thesaurus: NASA Global Change Master Directory (GCMD) Location Keywords
         Place_Keyword: Geographic Region > Polar
   Platform_and_Instrument_Identification:
      Platform_Full_Name: Earth Observing System, AQUA
      Platform_Short_Name: AQUA
      Instrument_Full_Name: Advanced Microwave Scanning Radiometer-EOS
      Instrument_Short_Name: AMSR-E

   Access_Constraints: None

   Use_Constraints: None

   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: AE_SI25

   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: HDF-EOS
         Digital_Transfer_Option:
            Online_Option:
               Computer_Contact_Information:
                  Network_Address:
                     Network_Resource_Name: ftp://n5eil01u.ecs.nsidc.org/SAN/AMSA/AE_SI25.003
      Fees: None

Metadata_Reference_Information:
   Metadata_Date: 20140918

   Metadata_Review_Date: 20140918

   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