| Summary: | The Caribou-Poker Creek Research Watershed began as an Alaskan inter-agency effort in 1969. As more data becomes accumulated, as more hydrologic analysis is accomplished and as a greater variety of activities are carried out on the watershed, there is a need to understand the complete hydrologic system of the watershed. This report describes the development of a general hydrologic system model which describes the runoff occurrence on the watershed. The model will provide a basis upon which to make comparative observations, to suggest changes in·the model structure and to point out further measurement needs. A conceptual model study such as this work should not be thought of as a final answer to all systems analysis within the watershed or even the most desirable answer in many cases. There is a definite need, however, for a conceptual model because of the variety of activities and investigators, many of which do not have a complete understanding of the whole system. A complete and flexible conceptual model provides a convenient focal point for all types of investigators, regardless of their background and interest in the overall system. The Caribou-Poker Creek Research Watershed is located approximately 25 miles northwest of Fairbanks, Alaska. It is about 40 square miles in size and covers a variety of terrain which is typical of Interior Alaska. Other details concerning this watershed may be found in Slaughter (1971). Results of hydrologic data to date has been primarily data collection and reporting (Slaughter, 1972). The model as it is offered in this report is not intended to be a complete study of conceptual watershed modeling. Rather, the intention is to illustrate the derivation of a conceptual model and illustrate how it is applied to a particular watershed. This project was supported in part by U. S. Army - Cold Regions Research and Engineering Laboratory, Grant No. DA-ENG-2702l-7l-G30, and in part by the State of Alaska Through the Institute of Water Resources, University of Alaska, Fairbanks.
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