1. Rio Blanco County, Colorado
Precipitation Response Model
For Fourteenmile and Dry Thirteenmile Creeks
Rio Blanco County, Colorado
CEE 6440 : GIS in Water Resources
Collin Robinson
Fall 2004
Oral Presentation

2. Objective
obtain, process, and interpret available geospatial data using ArcGIS tools and extensions in order to develop a means of estimating direct runoff for the ungaged catchments under consideration

3. Obtaining Data precipitation data
digital elevation and land cover data
political boundaries, populated places, roads
all project data were downloaded from free websites
soil polygons

4. Processing Data Analysis of Infiltration Characteristics
(Soil Conservation Service Method)
Terrain Analysis Using DEM (TauDEM)
Dr. David Tarboton

5. Interpreting Data
results of data processing serve as inputs for computation of direct runoff using SCS method as described by Dr. Maidment in several of his books
the composite, or weighted, curve number should be corrected for antecedent moisture condition
curve number then used in conjunction with storm data to calculate excess precipitation
excess precipitation and watershed properties (area, length, slope, etc. from watershed delineation with ArcGIS tools and extensions) are used to calculate discharge
important to recognize limitations of method

6. Conclusion project has been successful
end product computations will be included in report
recommendations for improvement are welcome

7. Credits Dr. David Tarboton Dr. David Maidment Mr. Jacob Young
Mr. Stewart Edwards

8. Questions?