Entry_ID: NSIDC-0464
Entry_Title: Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures
Group: Data_Set_Citation
   Dataset_Creator: Long, D. G. and J. Stroeve. 
   Dataset_Title: Enhanced-Resolution SSM/I and AMSR-E Daily Polar Brightness Temperatures
   Dataset_Release_Date: 2011-08-11
   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/nsidc-0464.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: David
   Middle_Name: G.
   Last_Name: Long
   Email: long@et.byu.edu
   Group: Contact_Address
      Address: Brigham Young University
      Address: Microwave Earth Remote Sensing (MERS) Laboratory
      Address: 459 Clyde Building
      City: Provo
      Province_or_State: UT
      Postal_Code: 84602
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Julienne
   Last_Name: Stroeve
   Email: stroeve@nsidc.org
   Group: Contact_Address
      Address: CIRES
      Address: National Snow and Ice Data Center
      Address: National Snow and Ice Data Center
      Address: CIRES, 449 UCB
      Address: University of Colorado
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309
   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: Brightness Temperature
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: Brightness Temperature
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: Brightness Temperature
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Antarctic
Keyword: Arctic
Keyword: Daily Data
Keyword: EASE-Grid
Keyword: EOSDIS
Keyword: Gridded Data
Keyword: NSIDC DAAC
Keyword: Passive Microwave
Keyword: Polar
Keyword: Remote Sensing
Sensor_Name: AMSR-E > Advanced Microwave Scanning Radiometer-EOS
Sensor_Name: SSM/I > Special Sensor Microwave/Imager
Source_Name: AQUA > Earth Observing System, AQUA
Source_Name: DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
Group: Temporal_Coverage
   Start_Date: 2002-01-01
   Stop_Date: 2011-10-01
End_Group
Group: Temporal_Coverage
   Start_Date: 1995-01-01
   Stop_Date: 2008-12-31
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: -39
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: 30
   Northernmost_Latitude: 90
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: CANADA
   Location_Subregion2: HUDSON BAY
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Detailed_Location: BAFFIN BAY
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Location_Subregion1: BEAUFORT SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ARCTIC OCEAN
   Location_Subregion1: CHUKCHI SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ATLANTIC OCEAN
   Detailed_Location: NORTH ATLANTIC OCEAN
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: ATLANTIC OCEAN
   Location_Subregion1: NORTH ATLANTIC OCEAN
   Detailed_Location: GREENLAND SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: PACIFIC OCEAN
   Location_Subregion1: NORTH PACIFIC OCEAN
   Location_Subregion2: BERING SEA
End_Group
Group: Location
   Location_Category: OCEAN
   Location_Type: SOUTHERN OCEAN
   Detailed_Location: AMUNDSEN SEA
End_Group
Group: Data_Resolution
   Latitude_Resolution: 7.5 km
   Longitude_Resolution: 7.5 km
   Temporal_Resolution: 12:00:00
End_Group
Group: Data_Resolution
   Latitude_Resolution: 12.5 km
   Longitude_Resolution: 12.5 km
   Temporal_Resolution: 12:00:00
End_Group
Group: Data_Resolution
   Latitude_Resolution: 2.5 km
   Longitude_Resolution: 2.5 km
   Temporal_Resolution: 12:00:00
End_Group
Project: EOSDIS > Earth Observing System Data Information System
Project: ESIP > Earth Science Information Partners Program
Group: Quality

   Enhanced SSM/I brightness temperatures were produced without calibration 
   changes from the Remote Sensing Systems (RSS) Version 6 (V6) SSM/I swath 
   product for DMSP-F13. Enhanced AMSR-E brightness temperatures were produced, 
   also without adjustments, from the RSS V4 AMSR-E swath product. For details 
   regarding calibration and validation of these source products, please visit RSS.

End_Group
Data_Set_Language: English
Originating_Center: NSIDC_DAAC
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: 1.5 - 63 MB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 5 - 7168 KB
   Distribution_Format: GIF
End_Group
Group: Reference

   Long, D. G., P. Hardin, and P. Whiting. 1993. Resolution Enhancement of 
   Spaceborne Scatterometer Data. IEEE Trans. Geosci. Remote Sens. 31: 700-715. 
   Long, D. G. and D. Daum. 1998. Spatial Resolution Enhancement of SSM/I Data. 
   IEEE Trans. Geosci. Rem. Sens. 36: 407-417.

   Long, D. G., D. Early, and M. R. Drinkwater. 1994. Enhanced Resolution ERS-1 
   Scatterometer Imaging of Southern Hemisphere Polar Ice. Proc. Int. Geosci. 
   Rem. Sens. Sym., Pasadena, California, 8-12 August, 156-158.

   Long, D. G. and M. R. Drinkwater. 1999. Cryosphere Applications of NSCAT Data. 
   IEEE Trans. Geosci. Remote Sens. 37 (3): 1671-1684. Early, D. S. and D. G. 
   Long. 2001. Image Reconstruction and Enhanced Resolution Imaging from 
   Irregular Samples. IEEE Trans. Geosci. Remote Sens. 39 (2): 291-302. 

   Gunn, B. 2007. Temporal Resolution Enhancement for AMSR Images. MERS Technical 
   Report 07-02, 04 Dec. 2007. www.scp.byu.edu/docs/pdf/MERS0702.pdf Hollinger, 
   J. P. and R. C. Lo. 1983. SSM/I Project Summary Report. Naval Research 
   Laboratory. NRL Memorandum Report 5055. 106 pp. 

   Stroeve, J. 1998. Impact of Various Processing Options on SSM/I-Derived 
   Brightness Temperatures. NSIDC Special Report-7. 
   http://nsidc.org/pubs/special/7/index.html

End_Group
Group: Summary

   This data set contains enhanced-resolution brightness temperatures produced 
   using the Scatterometer Image Reconstruction (SIR) algorithm developed by the 
   Microwave Earth Remote Sensing (MERS) group at Brigham Young University (BYU). 
   Enhanced-resolution brightness temperature images for the Arctic and Antarctic 
   were generated using antenna temperature data from the Special Sensor 
   Microwave/Imager (SSM/I) and the Advanced Microwave Scanning Radiometer - 
   Earth Observing System (AMSR-E) instrument. SSM/I images are available for 
   1995 through 2008, and AMSR-E images are available for 2002 through 2010. All 
   available measurements for a single day are averaged into twice-daily gridded 
   files for three different equal-area spatial coverages: Northern Hemisphere, 
   Southern Hemisphere, and full global. The spatial resolution is 12.5 km for 
   SSM/I channels 19 and 22 GHz, 7.5 km for 37 GHz, and 2.5 km for the 85 GHz 
   channel. For AMSR-E, the resolution is 12.5 km for the 6, 10, 18, and 23 GHz 
   channels; 7.5 km for the 36 GHz channel; and 2.5 km for the 89 GHz channel. 
   Software for reading the SIR-formatted SSM/I and AMSR-E data is also 
   available. As scatterometer and radiometer data complement each other, these 
   enhanced-resolution radiometer data, together with SIR format scatterometer 
   data available from BYU, will facilitate polar research that combines 
   information from both radiometers and scatterometers. Data are stored as 
   scaled 2-byte integers in binary arrays with a 512-byte header and are 
   available via FTP.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/docs/faqs/ssmi_faq.html

   Group: Description

      SSM/I Brightness Temperature and Sea Ice Concentration Grids: Frequently Asked 
      Questions (FAQs)

   End_Group
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/docs/faqs/ssmi_faq.html
   Group: Description

      SSM/I Brightness Temperature and Sea IceConcentration Grids: Frequently Asked 
      Questions(FAQs)

   End_Group
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0301.html
   Description: AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0032.html
   Description: DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0032.html
   Description: DMSP SSM/I-SSMIS Pathfinder Daily EASE-GridBrightness Temperatures
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0342.html
   Group: Description

      Near-Real-Time DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness 
      Temperatures

   End_Group
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0342.html
   Group: Description

      Near-Real-Time DMSP SSM/I-SSMIS Pathfinder DailyEASE-Grid Brightness 
      Temperatures

   End_Group
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2011-08-11
Last_DIF_Revision_Date: 2013-06-24
DIF_Revision_History:  updated citation