1. Brooke Shakespeare M.S. Student Watershed Science
Linking Quantified Lateral Flow Gains in Stream Reaches to Catchment Attributes
Brooke Shakespeare
M.S. Student
Watershed Science

2. Introduction
Understanding Catchment-Stream Hydrology Relations Is Important for:
Land Managers Maintaining Good Water Quality
Predicting Water Yeild from Catchments
In the West, “mountain head water catchments are the life blood of the desert” (Shakespeare, B.)
It is cool

3. Objective of Project
Linking stream reach hydrology with headwater catchments based on catchment attributes derived from Digital Elevation Data through the use of GIS and in field tracer injections.

4. Site Description Headwaters of the Ogden River
Paired Watersheds (~9 and 11 km2)
Base Flow~ L/S
2678m to 2171m ( ft) elevation
Conifer and Aspen Hillslopes, with Willow Dominated Riparian Zone

5. Stream Reaches In Field Measurment of ~200 Meter Reaches
Total of 4600 and 5000 m for Frost and Bear Respectivey

6. Quantification of Lateral Flow Gains
From Cl-1 Tracer Injection July
Use Simple Mass Balance Dilution Aproach
Qc=Qb((Cb-Ca)/(Cc-Ca))

7. GIS Work
Used TauDEM
Worked relatively well Because of 49 “outlet points” delinating with respect to

8. Breaking Up Catchments
Needed to Take Catchments Shapefile and Break up and Piece Together

10. Determine Sub-Basin Characteristics
Convert to Raster
Multiply To Landcover (30m), Aspect (10m), and Slope (10m) potential problems.
Export Data (dbf) to analyze in Excel

11. Potential Problems Expounded On Missing Data

12. Other Things To Consider
Important to know exact location geospatially

13. Example of Potential Skewing Errors
If GPS reading location (accurate to 10 meters or more!!) is wrongly located……

18. Thoughts of Learning Need more accurate GPS readings
Increasing Area Correlates With Increasing Lateral Inflows
Bear Seems To Follow Trends – Perhaps Karst Flow in Frost Influences Lack of Trends