SMEX03 ENVISAT ASAR Data  View Catalog Page Entry ID
NSIDC-0357
Summary
This data set is comprised of browse images acquired over the regional study areas of Alabama, Georgia, and Oklahoma USA as part of the 2003 Soil Moisture Experiment (SMEX03). The experiment was conducted from March through July 2003 via the Advanced Synthetic Aperture Radar (ASAR) instrument on board the European Space Agency's (ESA) Environmental Satellite (ENVISAT). Cross-polarized C-band ASAR images were acquired in order to obtain a backscatter coefficient measurement over a range of natural vegetation types. However, the images provided here are only browse images and therefore cannot be used to derive backscatter coefficient values. Researchers interested in backscatter coefficient values must obtain the ASAR data. The total volume for this combined data set is approximately 65 megabytes. Data are available via FTP and are provided as JPEG image files and JGW georeference files. Also included and available via FTP are the following types of header files: HAN files, ASCII text files, and INI files.
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: 35.61°
S: 34.47°
E: -97.31°
W: -98.53°
N: 35.59°
S: 34.49°
E: -85.02°
W: -86.15°
N: 31.91°
S: 30.79°
E: -82.69°
W: -83.98°
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Data Set Citation
Dataset Creator: Jackson, T.J., Bindlish, R., and R. Van der Velde.
Dataset Title: SMEX03 ENVISAT ASAR Data
Dataset Release Date: 2009-01-23
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0357.html
Temporal Coverage
Start Date: 2003-03-26
Stop Date: 2003-07-15
Location Keywords
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA ALABAMA
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA GEORGIA
- CONTINENT NORTH AMERICA UNITED STATES OF AMERICA OKLAHOMA
Science Keywords
- Spectral/Engineering Radar Radar Backscatter
Ancillary Keywords
- AMSR-E
- C-band radar
- DAAC
- NSIDC
- NSIDC DAAC
- NSIDC > National Snow and Ice Data Center
- SAR imagery
- Satellite Radar Data
- SMEX
- Soil Moisture
- Surface Layer Backscatter
- Climatology/Meteorology/Atmosphere
Platform
- ENVISAT Environmental Satellite
Instrument
- ASAR Advanced Synthetic Aperature Radar
Project
- SMEX03 Soil Moisture Experiments in 2003
Data Set Progress
complete
Originating Center
NSIDC_AGDC
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: 13 MB
Distribution Format: ASCII Text
Distribution Media: FTP
Distribution Size: 52 MB
Distribution Format: JPEG
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
Rajat Bindlish
Role: INVESTIGATOR
Email: bindlish@hydrolab.arsusda.gov
Contact Address:
- USDA
- ARS Hydrology and Remote Sensing Lab
City: Beltsville
Province or State: MD
Postal Code: 20705
Country: USA
Rogier Van der Velde
Role: INVESTIGATOR
Contact Address:
- U.S. Department of Agriculture
- ARS Soil Tilth Laboratory
- ARS Soil Tilth Laboratory
- U.S. Department of Agriculture
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/Aqua Data at NSIDC
VIEW PROJECT HOME PAGE
AMSR-E Validation Data at NSIDC
Reference
Please visit the USDA SMEX03 Web site (http://hydrolab.arsusda.gov/smex03/) for in-depth information on the science mission and goal of the SMEX project.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2009-01-23
Last DIF Revision Date: 2009-10-08
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