Entry_ID: NSIDC-0185
Entry_Title: SMEX02 Soil Moisture and Temperature Profiles, Walnut Creek, Iowa
Group: Data_Set_Citation
   Dataset_Creator: Crosson, W. and C. Laymon. 
   Dataset_Title: SMEX02 Soil Moisture and Temperature Profiles, Walnut Creek, Iowa
   Dataset_Release_Date: 2003-09-19
   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-0185.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: Investigator
   First_Name: William
   Last_Name: Crosson
   Group: Contact_Address
      Address: Marshall Space Flight Center (MSFC)
      Address: Universities Space Research Association (USRA)
      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 Moisture/Water Content
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Agriculture
   Term: Soils
   Variable_Level_1: Soil Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Precipitation
   Variable_Level_1: Precipitation Amount
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Precipitation
   Variable_Level_1: Rain
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   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 Temperature
End_Group
Keyword: NSIDC
Keyword: NSIDC DAAC
Keyword: NSIDC > National Snow and Ice Data Center
Keyword: Rain
Keyword: Rain Accumulation
Keyword: Rain Amount
Keyword: Rainfall Amount
Keyword: Rainfall Total
Keyword: Rain Gauge
Keyword: SMEX
Keyword: Soil Heat Temperature
Keyword: Soil Moisture
Keyword: Soil Temperature
Keyword: Soil Temperatures
Keyword: Soil Water Content
Keyword: Soil Water Retention
Keyword: Surface Rainfall
Keyword: Surface Soil Moisture
Keyword: Total Rainfall
Sensor_Name: RAIN GAUGES
Sensor_Name: SOIL MOISTURE PROBE
Sensor_Name: SOIL TEMPERATURE PROBE
Source_Name: FIELD SURVEYS
Group: Temporal_Coverage
   Start_Date: 2002-06-23
   Stop_Date: 2002-07-23
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: 41.934
   Northernmost_Latitude: 41.992
   Westernmost_Longitude: -93.664
   Easternmost_Longitude: -93.529
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: 4.87 MB
   Distribution_Format: Microsoft Excel
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 140 to 605 KB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Summary

   This data set contains rainfall, soil moisture, and soil temperature data 
   collected for the Soil Moisture Experiment 2002 (SMEX02). The parameters 
   measured are soil moisture, soil temperature, and rainfall. Soil moisture and 
   temperature were measured at various depths: 2, 5, 10, 15, 20 and 30 cm.  

   Data were collected in four fields, each containing two measurement sites 
   called 'pit A' and 'pit B.' The study was conducted in the Walnut Creek 
   watershed in south central Iowa, USA, during June and July 2002. Water content 
   reflectometers (WCRs) measured soil moisture. Soil temperature probes (STPs) 
   and averaging thermocouple (TCAV) probes measured soil temperature. A tipping 
   bucket rain gauge measured rainfall.

   Data are provided in ASCII text files and a Microsoft Excel file, and 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: AMSR-E Validation
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: Soil Moisture Experiments in 2002
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2003-09-19
Last_DIF_Revision_Date: 2013-07-03
DIF_Revision_History:  updated version