SMEX02 ASTER Level 1B Data, Iowa  View Catalog Page Entry ID
NSIDC-0197
Summary
This data set is part of the Soil Moisture Experiment 2002 (SMEX02). Investigators acquired a series of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images from the Terra satellite. Three ASTER scenes were combined in a mosaic and the regional study area extracted to form one image. These data represent a single point in time; the satellite overpass time was 17.20 GMT on July 1, 2002. The study area is the Walnut Creek Watershed area in Iowa, USA, covering 41.70 to 42.73°N and 93.16 to 93.84°W. These ASTER Level 1B data include three Visible and Near-infrared (VNIR) bands with 15 m spatial resolution of 15 m, six Shortwave Infrared (SWIR) bands with 30 m spatial resolution, and five Thermal Infrared (TIR) bands with 90 m spatial resolution. The data are L1B data with geometric and radiometric correction. The data are in unsigned integer binary files in terms of scaled radiance, one file for each band. 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.
Geographic Coverage
Spatial Coordinates:
N: 42.73°
S: 41.7°
E: -93.16°
W: -93.84°
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Data Set Citation
Dataset Creator: T. Jackson
Dataset Title: SMEX02 ASTER Level 1B Data, Iowa
Dataset Release Date: 2003-12-10
Dataset Release Place: Boulder, CO
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Online Resource: http://nsidc.org/data/nsidc-0197.html
Temporal Coverage
Start Date: 2002-07-01
Stop Date: 2002-07-01
Location Keywords
- Continent North America United States Of America
Science Keywords
- Spectral/Engineering Infrared Wavelengths Shortwave Infrared
- Spectral/Engineering Infrared Wavelengths Visible-Near Infrared
- Spectral/Engineering Infrared Wavelengths Infrared Imagery
- Spectral/Engineering Infrared Wavelengths Infrared Radiance
- Spectral/Engineering Infrared Wavelengths Thermal Infrared
Ancillary Keywords
- NSIDC
- RADIOMETER
- Radiometers
- Satellite Imagery
- Satellite Radar Data
- Satellites
- SMEX
Platform
- TERRA Earth Observing System, TERRA (AM-1)
Instrument
- ASTER Advanced Spaceborne Thermal Emission and Reflection Radiometer
- INFRARED RADIOMETERS
- SWIR Short Wavelength Infrared Radiometer
- VNIR Visible and Near Infrared Radiometer
- VTIR Visible and Thermal Infrared Radiometer
Project
- ISMEX Iowa Soil Moisture Experiment
- SMEX02 Soil Moisture Experiments in 2002
Data Set Progress
COMPLETE
Data Center
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Set ID: NSIDC-0197
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
NSIDC Distributed Active Archive Center
Data Center URL: http://nsidc.org/daac/index.html
Data Set ID: NSIDC-0197
Data Center Personnel
Name: NSIDC DAAC 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: 251 MB
Distribution Format: flat binary files
Personnel
Thomas Jackson
Role: INVESTIGATOR
Phone: 301-504-8511
Fax: 301-504-8931
Email: tjackson@hydrolab.arsusda.gov
Contact Address:
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: (301) 504-6461
Fax: (301) 504-8931
Email: mcosh@hydrolab.arsusda.gov
Contact Address:
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
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
Related URL
VIEW RELATED INFORMATION
VIEW RELATED INFORMATION
Reference
ASTER User Guide
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-11-20
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