Scientific Investigations Report 2006–5036

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5036

An Evaluation and Review of Water-Use Estimates and Flow Data for the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California

Prepared in cooperation with the Bureau of Reclamation

By John C. Risley and Marshall W. Gannett

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Table of Contents

Conversion Factors and Datums

Abstract

Introduction

Refuge Water Management

Water-Use Estimates Based on Open-Water Evaporation and Evapotranspiration Losses

Water-Use Estimates Based on Inflows and Outflows

Refuge Water Budgets

Flow Data Quality

Summary and Conclusions

Acknowledgments

References Cited

Figures

Figure 1. Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

Figure 2. Major flow paths entering and exiting the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

Figure 3. Lower Klamath National Wildlife Refuge net inflow, Oregon and California, 1962–2005.

Figure 4. Monthly flows for Ady Canal, Klamath Straits Drain, and D Pumping Plant, Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California, 1961 through 2005.

Figure 5. Water budget, derived from an approximation of 2003–2005 conditions, for Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

Tables

Table 1. Approximate water use by land-use category in the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

Table 2. Area of land in different land-use categories in the Lower Klamath National Wildlife Refuge, Oregon and California, 2003-2005.

Table 3. Estimated water use in the Lower Klamath National Wildlife Refuge, Oregon and California, 2003-2005.

Table 4. Area of land in different land-use categories in the Tule Lake National Wildlife Refuge, Oregon and California, 2003–2005.

Table 5. Estimated water use in the Tule Lake National Wildlife Refuge, Oregon and California, 2003-2005.

Table 6. Estimated 2003-2005 mean annual inflows to and outflows from the Lower Klamath and Tule Lake National Wildlife Refuges, Oregon and California.

Table 7. Mean net inflows to the Lower Klamath National Wildlife Refuge, Oregon and California, 1962-2005 and 2003-2005.

Table 8. Accuracy ratings for Ady Canal, Klamath Straits Drain, and D Pumping Plant flow records, Oregon and California.

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Send questions or comments about this report to the author, J.C. Risley, (503) 251-3279.

For more information about USGS activities in Oregon, visit the USGS Oregon Water Science Center home page.

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