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Long-Term Remote Sensing
Database, Walnut Gulch Experimental Watershed, Arizona, USA
M.S. Moran1, C.D. Holifield Collins1, D.C. Goodrich1,
D.T. Shannon3 and A. Olsson4
1 USDA ARS
Southwest Watershed Research Center, Tucson, AZ
2 Michigan State
University, Center for Global Change and Earth
Department of Geography, East Lansing, MI
Software, Tucson, AZ
4 Office of Arid
Lands Studies, Arizona Remote Sensing Center, Tucson, AZ
Abstract. The USDA Agricultural Research Service,
Southwest Watershed Research Center, Walnut Gulch Experimental Watershed (WGEW)
is a located in the San Pedro Valley of Southeastern Arizona. The long-term,
high-quality data collection conducted over decades at WGEW has encouraged
numerous hydrologic remote sensing (RS) experiments funded by National
Aeronautics and Space Administration (NASA), National Oceanic and Atmospheric
Administration (NOAA) and National Science Foundation (NSF). This continuing
work has resulted in an accumulation of hundreds of spectral image files from a
variety of satellite- and aircraft-based sensors (the images) and the
association of those images with data files containing high-quality ground-based
measurements of soil, plant and atmospheric conditions (the ground data).
These images and the supporting ground data have been compiled in one location
and archived in an orderly fashion to enable easy queries of either image or
supporting ground data files. Metadata on all archived images and ground data
were entered into a database in 2006, named the WGEW Image and Ground Data
Archive or WIDGA06. The database WIGDA06 can be downloaded using the link below
and it provides contact information for obtaining copies of the image and data
To download the WIGDA06
Database, click HERE.
IMPORTANT: Be sure to read this
README file first.
ARIA is an
interdisciplinary resource system and online clearinghouse for digital image and
map data for the Sonoran Desert region, including the U.S. Southwest and
The SRER Digital Database (SRER
DD) is an online accessible collection of geographically explicit long-term
vegetation and precipitation measurements, and repeat photography images
spanning over 100 years (http://cals.arizona.edu/srer).