Entry_ID: AA_L2A
Entry_Title: AMSR/ADEOS-II L2A Global Swath Spatially-Resampled Brightness Temperatures
Group: Data_Set_Citation
   Dataset_Creator: Japan Aerospace Exploration Agency (JAXA). 
   Dataset_Title: AMSR/ADEOS-II L2A Global Swath Spatially-Resampled Brightness Temperatures
   Dataset_Release_Date: 2009-04-15
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/aa_l2a.html
   Dataset DOI: http://dx.doi.org/10.5067/ADEOS-II/AMSR/AA_L2A.001
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Peter
   Last_Name: Ashcroft
   Email: ashcroft@remss.com
   Phone: 1 707 545-2904 x12
   Fax: 1 707  545-2906 
   Group: Contact_Address
      Address: Remote Sensing Systems
      Address: Remote Sensing Systems
      Address: 438 First Street
      Address: Suite 200
      City: Santa Rosa
      Province_or_State: CA
      Postal_Code: 95401
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Frank
   Middle_Name: J.
   Last_Name: Wentz
   Email: wentz@remss.com
   Phone: 1 707 545-2904 x16
   Fax: 1 707  545-2906 
   Group: Contact_Address
      Address: Remote Sensing Systems
      Address: Remote Sensing Systems
      Address: 438 First Street
      Address: Suite 200
      City: Santa Rosa
      Province_or_State: CA
      Postal_Code: 95401
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   Last_Name: User Services
   Email: nsidc@nsidc.org
   Phone: 1 303 492-6199 x
   Fax: 1 303  492-2468 x
   Group: Contact_Address
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Microwave
   Variable_Level_1: Brightness Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Spectral/Engineering
   Term: Microwave
   Variable_Level_1: Microwave Imagery
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: AA_L2A
Keyword: ADEOS-II
Keyword: AMSR
Keyword: DAAC
Keyword: Imagery
Keyword: Japan Aerospace Exploration Agency
Keyword: NSIDC
Keyword: NSIDC DAAC
Keyword: Passive Microwave Brightness Temperatures
Keyword: Passive Microwave Data
Keyword: Radiance
Keyword: Radiometers
Keyword: Remote Sensing
Keyword: Satellite Imagery
Keyword: spatial resolutions
Keyword: Tb
Sensor_Name: AMSR > Advanced Microwave Scanning Radiometer
Source_Name: ADEOS-II > Advanced Earth Observing Satellite-II
Group: Temporal_Coverage
   Start_Date: 2003-01-28
   Stop_Date: 2003-10-24
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: 90
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: GLOBAL
End_Group
Project: EOSDIS > Earth Observing System Data Information System
Project: ESIP > Earth Science Information Partners Program
Group: Quality

   Each HDF-EOS file contains core metadata with Quality Assessment (QA) metadata 
   flags that were set by the Science Investigator-led Processing System (SIPS) 
   at the Global Hydrology and Climate Center (GHCC) prior to delivery to NSIDC. 
   A separate metadata file with a .xml file extension was also delivered to 
   NSIDC with the HDF-EOS file; it contains the same information as the core 
   metadata. Three levels of QA are conducted with the AMSR Level 2 products: 
   automatic, operational, and science QA. If a product does not fail QA, it is 
   ready to be used for higher-level processing, browse generation, active 
   science QA, archive, and distribution. If a granule fails QA, SIPS does not 
   send the granule to NSIDC until it is reprocessed. Only a QA file is produced 
   when there is no L2A brightness temperature data that qualifies for retrieval 
   (Conway 2002).

End_Group
Data_Set_Language: English
Originating_Center: NSIDC
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 68 MB
   Distribution_Format: HDF-EOS
End_Group
Group: Reference

   Ashcroft, Peter and Frank Wentz. 2000. Algorithm Theoretical Basis Document 
   for the AMSR Level-2A Algorithm, Revised 03 November. Santa Rosa, CA, USA: 
   Remote Sensing Systems.

   Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality 
   Assurance Plan. Huntsville, AL: Global Hydrology and Climate Center. For more 
   information regarding related publications, see the Research Using AMSR Data 
   Web page.

End_Group
Group: Summary

   The Advanced Microwave Scanning Radiometer (AMSR) instrument on the Japan 
   Aerospace Exploration Agency's (JAXA) Advanced Earth Observation Satellite-II 
   (ADEOS-II) provided global passive microwave measurements of land, ocean, and 
   atmospheric variables for the investigation of global water and energy cycles.

   The AMSR Level-2A product (AA_L2A) contains brightness temperatures at 6.9 
   GHz, 10.65 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, 89.0 GHz, 50.3 GHz, and 52.8GHz. 
   Data are resampled to be spatially consistent except for the 50.3GHz and 
   52.8GHz data, and therefore are available at a variety of resolutions that 
   correspond to the footprint sizes of the observations such as 56 km, 38 km, 24 
   km, 21 km, 12 km, and 5.4 km, respectively. Each swath is packaged with 
   associated geolocation fields.

   AMSR was an eight-frequency, passive-microwave radiometer system with the 
   ability to observe from day to night, under any weather conditions with less 
   cloud effects. AMSR was a conical scan sensor that swept the surface of the 
   Earth at about ±90 degrees centered at the direction of the satellite flight. 
   It measured horizontally and vertically polarized radiances at 6.9, 10.65, 
   18.7, 23.8, 36.5, and 89.0 GHz; and vertically polarized radiances at 50.3 and 
   52.8 GHz. Spatial resolution of the individual measurements varies from 5 km 
   at 89 GHz to ~50 km at 6.9 and 10.65 GHz. Data are stored in Hierarchical Data 
   Format - Earth Observing System (HDF-EOS) format and are available from 
   2003-01-28 to 2003-10-24 via FTP.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsr/index.html
   Description: AMSR/ADEOS-II Data
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsre/index.html
   Description: Aqua/AMSR-E Data
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2009-04-15
Last_DIF_Revision_Date: 2013-10-30
DIF_Revision_History:  Adding DOI.