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SMEX03 ThetaProbe Soil Moisture Data: Alabama

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Entry ID

NSIDC-0306

Summary

This data set includes soil moisture data measured with Delta-T Devices’ ThetaProbe ML2 sensors for the Soil Moisture Experiment 2003 (SMEX03), conducted during June and July 2003 in northern Alabama and southern Tennessee, USA. The output parameters include voltage readings from the probe and volumetric soil moisture calculated from the measured voltage. Data were collected at crop, pasture, and forested sites. Data are provided in either a Microsoft Excel spreadsheet file or in three ASCII text files 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.

Geographic Coverage

 

Spatial Coordinates:
N: 35.16°     S: 34.68°     E: -85.78°     W: -87.08°    

Data Set Citation

Dataset Creator: Crosson, W. and C. Laymon.
Dataset Title: SMEX03 ThetaProbe Soil Moisture Data: Alabama
Dataset Release Date: 2007-11-05
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-0306.html

Temporal Coverage

Start Date: 2003-06-22
Stop Date: 2003-07-02

Data Resolution

Temporal Resolution: 1 day

Location Keywords

  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA
  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA ALABAMA
  • CONTINENT NORTH AMERICA UNITED STATES OF AMERICA TENNESSEE

Science Keywords

  • Agriculture Soils Electrical Conductivity
  • Agriculture Soils Soil Moisture/Water Content

Ancillary Keywords

  • AMSR-E
  • DAAC
  • NASA
  • NSIDC
  • SMEX
  • Soil Moisture
  • Surface Soil Moisture

ISO Topic Category (View Definitions)

  • Climatology/Meteorology/Atmosphere

Platform

  • FIELD SURVEYS
  • GROUND-BASED OBSERVATIONS

Instrument

  • DIELECTRIC PROBE
  • SOIL MOISTURE PROBE

Project

  • SMEX03 Soil Moisture Experiments in 2003

Data Set Progress

complete

Data Center

NASA DAAC at the National Snow and Ice Data Center
Data Center URL: http://nsidc.org/daac/index.html

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Distribution

Distribution Media: FTP
Distribution Size: 390 KB
Distribution Format: Microsoft Excel

Distribution Media: FTP
Distribution Size: 5 - 91 KB
Distribution Format: ASCII Text (.txt)

Personnel

William Crosson
Role: INVESTIGATOR
Contact Address:

  • Marshall Space Flight Center (MSFC)
  • Universities Space Research Association (USRA)
  • 320 Sparkman Dr.

City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA

Charles Laymon
Role: INVESTIGATOR
Contact Address:

  • Alabama A&M University
  • Universities Space Research Association/National Space Science and Tech. Center
  • 320 Sparkman Dr.

City: Huntsville
Province or State: AL
Postal Code: 35805
Country: USA

Related URL

VIEW RELATED INFORMATION
AMSR-E standard products available at NSIDC.

VIEW RELATED INFORMATION
SMEX Product Web Site

VIEW RELATED INFORMATION
USDA Soil Moisture Experiments 2003

VIEW RELATED INFORMATION
USDA Soil Moisture Experiments 2003 Home

Reference

Miller, J. D. and G. J. Gaskin. ThetaProbe ML2x Principles of Operation and Applications. Macaulay Land Use Research Institute. http://www.macaulay.ac.uk/MRCS/pdf/tprobe.pdf, 286 KB.

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2007-11-05
Last DIF Revision Date: 2013-10-08

Metadata Views

DIF Text-Only

Directory Interchange Format (DIF) in plain text

DIF XML

Directory Interchange Format (DIF) in Extensible Markup Language (XML)

FGDC HTML

U.S. Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM)

ISO HTML

International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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