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WWRC 84-14
Development of Evapotranspiration Crop Coefficients, Climatological Data, and Evapotranspiration Models for the Upper Green River in Wyoming


All equipment used in the project was installed in the fall of 1982 or in the spring of 1983. The 1983 progress report describes installation work and the "start-up" of the project. Experience has shown that a season is necessary for the establishment of vegetation grown in lysimeters.

Figure 1 is a map showing locations of lysimeters, weather stations and other features of the upper Green River Basin. Table 1 presents lysimeter location numbers and treatment descriptions.

For the most part, activities in 1984 involved the routine collection of field data from both the lysimeters and the weather stations. Large amounts of data were collected in 1984. Within a week of bringing field data to Laramie, initial processing has usually been accomplished. Detailed comparisons and modeling will be done later.

A second activity has been the analysis of historic data from the upper Green River area. Various calculations and comparisons have been made and work plans for the completion of the project are discussed.

Funding for the research project described in this report is from the Wyoming Water Development Commission and by the Wyoming Water Research Center of the University of Wyoming.

All data discussed in this report is believed to be reliable and accurate, but should be regarded as being provisional until the project is complete and the final report has been published.

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