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Research Project:
Hydrologic Processes, Scale, Water Resources, and Global Change for Semiarid Watershed Management
Location:
Southwest Watershed Research
Project Number: 5342-13610-007-00
Project Type:
Appropriated
Start Date: May 01, 2002
End Date: Apr 30, 2007
Objective:
1) Quantify semiarid water and energy balance components with greater
certainty
2) Improve our ability to measure and model precipitation
3) Develop new models and methods of utilizing remote sensing and
geospatial tools for watershed characterization, model input generation,
and assessment of watershed condition
4) Develop new knowledge of water/nutrient/carbon interactions in
semiarid regions including their ability to sequester carbon.
Approach:
Methods of investigation include field and laboratory experimentation,
as well as the development and use of state-of-the-science watershed
models, remotely sensed data, plant physiology, soils, isotopic and
micrometeorology measurements and analysis. Much of the research
utilizes and builds upon the MUs primary outdoor laboratory, the 150
sq. km Walnut Gulch Experimental Watershed. This intensively
instrumented (95 raingauges, 29 gauged subwatersheds, 2 energy, carbon,
soil moisture flux stations) is arguably the premier semiarid
experimental watershed in the world and has served as the SWRC outdoor
laboratory for over 40 years (see more detail see the following web
site: http://www.tucson.ars.ag.gov/unit/Watersheds/WGEW.htm). Formerly
5342-13610-006-00D (04/02). FY02 Program Increase; add 1 SY.
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