SMEX02 Watershed Soil Moisture Data, Walnut Creek, Iowa  View Catalog Page Entry ID
NSIDC-0143
Summary
This data set combines data for several parameters measured for the Soil Moisture Experiment 2002 (SMEX02). The parameters include bulk density, gravimetric and volumetric soil moisture, and surface and subsurface soil temperature. This study was conducted during June and July 2002 in the Walnut Creek watershed in south-central Iowa, USA. Data were collected in crop fields, using a variety of methods and sensors (manual soil samples for bulk density and gravimetric soil moisture data, infrared pyrometers for surface and subsurface soil temperature, and impedance probes for volumetric soil moisture). Data are provided in 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: 42.7°
S: 41.7°
E: -93.2°
W: -93.8°
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Data Set Citation
Dataset Creator: Thomas. Jackson
Dataset Title: SMEX02 Watershed Soil Moisture Data, Walnut Creek, Iowa
Dataset Release Date: 2003-07-30
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0143.html
Temporal Coverage
Start Date: 2002-06-23
Stop Date: 2002-07-12
Location Keywords
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA
Science Keywords
- Agriculture Soils Soil Bulk Density
- Agriculture Soils Soil Moisture/Water Content
- Agriculture Soils Soil Temperature
- Land Surface Land Temperature Land Surface Temperature
- Land Surface Soils Soil Bulk Density
- Land Surface Soils Soil Moisture/Water Content
- Land Surface Soils Soil Temperature
Ancillary Keywords
- Air Temperature
- Air Temperatures
- Daily Air Temperatures
- Hydrology
- Near-surface Air Temperatures
- NSIDC
- NSIDC DAAC
- NSIDC > National Snow and Ice Data Center
- SMEX
- Soil Bulk Density
- Soil Heat Temperature
- Soil Moisture
- Soil Temperature
- Soil Temperatures
- Soil Water Content
- USDA soil descriptions
Platform
Instrument
- PROBES
- SOIL HEAT PROBE
- SOIL MOISTURE PROBE
- SOIL SAMPLER
- SOIL TEMPERATURE PROBE
- TEMPERATURE PROBES
Project
- ISMEX Iowa Soil Moisture Experiment
- SMEX02 Soil Moisture Experiments in 2002
Data Set Progress
in work
Originating Center
NSIDC_DAAC
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: 3 - 1024 KB
Distribution Format: ASCII Text
Personnel
Thomas Jackson
Role: INVESTIGATOR
Phone: 1 301 504-8511
Fax: 1 301 504-8931
Email: tjackson@hydrolab.arsusda.gov
Contact Address:
- U.S. Department of Agriculture
- ARS Hydrology Lab
- USDA ARS Hydrology Lab
- 104 Bldg. 007
- BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA
Michael Cosh
Role: INVESTIGATOR
Phone: 1 301 504-6461
Fax: 1 301 504-8931
Email: mcosh@hydrolab.arsusda.gov
Contact Address:
- U.S. Department of Agriculture
- USDA ARS Hydrology Lab
- USDA ARS Hydrology Lab
- 104 Bldg. 007
- BARC-West
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
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
Related URL
VIEW PROJECT HOME PAGE
AMSR-E Validation
VIEW PROJECT HOME PAGE
NSIDC SMEX site
Reference
Please see the SMEX02 site (http://hydrolab.arsusda.gov/smex02/smex02.htm) for more information, and the NSIDC SMEX site (http://nsidc.org/data/amsr_validation/soil_moisture/) to access data.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-07-30
Last DIF Revision Date: 2012-07-11
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