Entry_ID: AE_Land
Entry_Title: AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids
Group: Data_Set_Citation
   Dataset_Creator: Njoku, E. G. 
   Dataset_Title: AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parms, & QC EASE-Grids
   Dataset_Release_Date: 2004-01-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC DAAC: NASA DAAC at the National Snow and Ice Data Center
   Version: 2
   Online_Resource: http://nsidc.org/data/ae_land.html
   Dataset DOI: http://dx.doi.org/10.5067/AMSR-E/AE_LAND.002
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: Personnel
   Role: Investigator
   First_Name: Eni
   Middle_Name: G.
   Last_Name: Njoku
   Email: njoku@lor.jpl.nasa.gov
   Phone: 1 818 354-3693 
   Group: Contact_Address
      Address: California Institute of Technology
      Address: Jet Propulsion Laboratory
      Address: M/S 300-233
      Address: Jet Propulsion Laboratory
      Address: California Institute of Technology
      Address: 4800 Oak Grove Drive
      City: Pasadena
      Province_or_State: CA
      Postal_Code: 91109-8099
      Country: USA
   End_Group
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Biosphere
   Term: Vegetation
   Variable_Level_1: Plant Characteristics
   Detailed_Variable: Vegetation Water Content
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Soils
   Variable_Level_1: Soil Moisture/Water Content
End_Group
ISO_Topic_Category: Environment
Keyword: AE_Land
Keyword: AMSR-E
Keyword: Aqua
Keyword: BRIGHTNESS TEMPERATURES
Keyword: DAAC
Keyword: EASE-Grid
Keyword: EOSDIS
Keyword: EOS PM-1
Keyword: Hydrology
Keyword: Imagery
Keyword: land surface temperatures
Keyword: NASA
Keyword: NSIDC
Keyword: Passive Microwave Radiation
Keyword: Radiance
Keyword: Remote Sensing
Keyword: Soil Water Content
Keyword: Surface Soil Moisture
Keyword: Tbs
Keyword: Vegetation Status
Keyword: Vegetation Water Content
Sensor_Name: AMSR-E > Advanced Microwave Scanning Radiometer-EOS
Source_Name: AQUA > Earth Observing System, AQUA
Group: Temporal_Coverage
   Start_Date: 2002-06-18
   Stop_Date: 2011-10-03
End_Group
Data_Set_Progress: in work
Group: Spatial_Coverage
   Southernmost_Latitude: -89.24
   Northernmost_Latitude: 89.24
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: GEOGRAPHIC REGION
   Location_Type: GLOBAL
End_Group
Group: Data_Resolution
   Latitude_Resolution: 25 km
   Longitude_Resolution: 25 km
   Temporal_Resolution: 00:50:00
End_Group
Project: EOS > Earth Observing System
Group: Quality

   Each HDF-EOS file contains core metadata with Quality Assessment (QA) metadata 
   flags that are 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 (.xml file extension) is 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-E Level 2 and 3 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. Level-3 products that fail QA are 
   never delivered to NSIDC (Conway 2002).

End_Group
Data_Set_Language: English
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: 0.61 MB
   Distribution_Format: HDF-EOS
End_Group
Group: Reference

   Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality 
   Assurance Plan. Huntsville, AL Global Hydrology and Climate Center.

   Njoku, E. G., T. L. Jackson, V. Lakshmi, T. Chan, and S. V. Nghiem. 2003. Soil 
   Moisture Retrieval from AMSR-E. IEEE Transactions on Geoscience and Remote 
   Sensing 41 (2): 215-229.  Njoku, E., T. Chan, W. Crosson, and A. Limaye. 2004. 
   Evaluation of the AMSR-E Data Calibration Over Land. Italian Journal of Remote 
   Sensing 29 (4)): 19-37. Njoku, E.G. and S.K. Chan. 2006. Vegetation and 
   Surface Roughness Effects on AMSR-E Land Observations. Remote Sensing 
   Environment 100(2): 190-199. 

   Njoku, E. G. 1999. AMSR Land Surface Parameters. Algorithm Theoretical Basis 
   Document: Surface Soil Moisture, Land Surface Temperature, Vegetation Water 
   Content, Version 3.0. Pasadena, CA USA: NASA Jet Propulsion Laboratory.

End_Group
Group: Summary

   The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) 
   instrument on the NASA EOS Aqua satellite provides global passive microwave 
   measurements of terrestrial, oceanic, and atmospheric variables for the 
   investigation of water and energy cycles. Soil moisture and other land surface 
   variables are key variables in understanding land surface hydrology and in 
   modeling ecosystems, weather, and climate.

   This Level-2B land surface product (AE_Land) includes daily measurements of 
   surface soil moisture, vegetation/roughness water content interpretive 
   information, and quality control variables. Ancillary data include time, 
   geolocation, and quality assessment. Input brightness temperature data at 10.7 
   GHz, corresponding to a 38 km mean spatial resolution, are resampled to a 
   global cylindrical 25 km Equal-Area Scalable Earth Grid (EASE-Grid) cell 
   spacing. Data are stored in HDF-EOS point format, and are available from 18 
   June 2002 to the present via FTP.

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: AMSR-E/Aqua Data at NSIDC
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsre/
   Description: AMSR-E Data at NSIDC
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://wwwghcc.msfc.nasa.gov/AMSR/
   Description: NASA AMSR-E Web Site
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/smap/
   Description: SMAP Data at NSIDC
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2004-01-01
Last_DIF_Revision_Date: 2014-04-16
DIF_Revision_History:  Added SMAP to See Also links.