Water balance studies require knowledge of evapotranspiration, which as a counterpart of precipitation determines the water resources of a region. Evapotranspiration is difficult to measure and indirect procedures through correlations with meteorological factors have been generally used for estimations. This latter procedure resorts to Potential evapotranspiration from water balance for basins.Evapotranspirometer measurement of evapotranspiration and computed potential evapotranspiration.Yearly water loss,in inches, obtained from precipitation and runoff.Computed yearly lake evaporation in inches.Computed average annual potential evapotranspiration in inches.Computed average annual potential evapotranspiration in inches.Computed average (January) potential evapotranspiration.in inches.Computed average (July) potential evapotranspiration in inches.
Water balance studies require knowledge of evapotranspiration, which as a counterpart of precipitation determines the water resources of a region. Evapotranspiration is difficult to measure and indirect procedures through correlations with meteorological factors have been generally used for estimations. This latter procedure resorts to Potential evapotranspiration from water balance for basins. Evapotranspirometer measurement of evapotranspiration and computed potential evapotranspiration. Yearly water loss,in inches, obtained from precipitation and runoff. Computed yearly lake evaporation in inches. Computed average annual potential evapotranspiration in inches. Computed average annual potential evapotranspiration in inches. Computed average (January) potential evapotranspiration.in inches. Computed average (July) potential evapotranspiration in inches.
The 93-square-mile experimental watershed in Reynolds Creek is aimed toward the solution of water yield, flood flow, and sedimentation problems of the plateau and foothills grazing areas of the northwest. This watershed was selected in 1960 specifically to permit experimental isolation of the several factors affecting the well-known water balance equation. Basic networks for measurements and compilation of inventories of soils, vegetation, surface geology, and topography have been substantially completed. Detailed studies on small, simple watersheds with identifiable characteristics will provide basic understanding of hydrologic processes, which can be tested on the larger, complex subwatersheds of the Reynolds Creek basin. Watershed, Tucson, Arizona; (2) Southern Great Plains Itydrology Research Watershed, Chickashg; Oklahoma; (3) North Central Itydrology Research Watershed, Columbia, Missouri; (4) Southeast Itydrology Research 407 408 ROBINS, KELLY, AND YIAMON Watershed, not yet established; and (5) North-"east Itydrology Research Watershed, not yet established. PROGRAM OBJECTIVES AND RESEARC• APPROAC•
Gage catch from two standard weighing recording rain gages (Belfort model 5-780), one with a modified Alter windshield and one with a rigid Alter type windshield, were compared for 89 storms with wind speeds ranging from 4 to 32 mph (6.4 to 51.5 km/h) and temperatures ranging from 14 ø to 69øF (-10 ø to 21 øC). The differences between gage catches were statistically significant at the 1% level for wind speeds of 12 to 16 mph (19.3 to 25.7 km/h) and for temperatures of 23øF (-5øC) or less. Since on the average the windshields do not produce significantly different catches, either windshield can be used to compute actual precipitation by using the Hamon dual gage approach.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.