Entry_ID: NSIDC-0203
Entry_Title: SMEX02 Sliced Core Soil Moisture Data, Walnut Creek Watershed, Iowa
Group: Data_Set_Citation
   Dataset_Creator: Laymon, C. 
   Dataset_Title: SMEX02 Sliced Core Soil Moisture Data, Walnut Creek Watershed, Iowa
   Dataset_Release_Date: 2004-01-10
   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-0203.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Charles
   Last_Name: Laymon
   Group: Contact_Address
      Address: Alabama A&M University
      Address: Universities Space Research Association/National Space Science and Tech. Center
      Address: 320 Sparkman Dr.
      City: Huntsville
      Province_or_State: AL
      Postal_Code: 35805
      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: Agriculture
   Term: Soils
   Variable_Level_1: Soil Bulk Density
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Agriculture
   Term: Soils
   Variable_Level_1: Soil Moisture/Water Content
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Soils
   Variable_Level_1: Soil Bulk Density
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Soils
   Variable_Level_1: Soil Moisture/Water Content
End_Group
Keyword: gravimetric soil moisture (GSM)
Keyword: Hydrology
Keyword: NSIDC
Keyword: NSIDC DAAC
Keyword: SMEX
Keyword: Soil Bulk Density
Keyword: soil core
Keyword: Soil Moisture
Keyword: Surface Soil Moisture
Sensor_Name: SEDIMENT CORERS
Source_Name: GROUND-BASED OBSERVATIONS
Group: Temporal_Coverage
   Start_Date: 2002-06-25
   Stop_Date: 2002-07-19
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: 41.93
   Northernmost_Latitude: 41.99
   Westernmost_Longitude: -93.66
   Easternmost_Longitude: -93.53
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: UNITED STATES OF AMERICA
End_Group
Project: SMEX02 > Soil Moisture Experiments in 2002
Project: ISMEX > Iowa Soil Moisture Experiment
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: 1 MB
   Distribution_Format: Microsoft Excel
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 1 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Summary

   This data set includes sliced soil core moisture data collected during the 
   Soil Moisture Experiment 2002 (SMEX02), conducted during June and July 2002 in 
   the Walnut Creek watershed in south-central Iowa, USA.  The study parameters 
   include gravimetric soil moisture (GSM) and bulk soil density.  Data were 
   collected manually at two corn and two soybean sites. Data are provided as 
   ASCII text files. The same data are available in a Microsoft Excel 
   spreadsheet. All data are available via FTP.

   These data were collected as part of a validation study for the Advanced 
   Microwave Scanning Radiometer - Earth Observing System (AMSR-E). AMSR-E is a 
   mission instrument launched aboard NASA's Aqua Satellite on 04 May 2002. 
   AMSR-E validation studies linked to SMEX are designed to evaluate the accuracy 
   of AMSR-E soil moisture data. Specific validation objectives include assessing 
   and refining soil moisture algorithm performance; verifying soil moisture 
   estimation accuracy; investigating the effects of vegetation, surface 
   temperature, topography, and soil texture on soil moisture accuracy; and 
   determining the regions that are useful for AMSR-E soil moisture measurements.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsr_validation/soil_moisture/
   Description: NSIDC SMEX
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/amsr_validation/soil_moisture/
   Description: NSIDC SMEX02 site
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://hydrolab.arsusda.gov/smex02/smex02.htm
   Description: USDA SMEX02 site
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2004-01-10
Last_DIF_Revision_Date: 2013-07-03
DIF_Revision_History:  updated version and citation