Evapotranspiration (ET) connects the land to atmosphere, linking water, energy, and carbon cycles. ET is an essential climate variable with a fundamental importance, accurate assessments of spatiotemporal trends variability in are needed from regional continental scales. This study compared eight global actual datasets (ETgl) average ensemble (ETens) based on remote sensing, reanalysis, land-su...

This paper describes the application of a continuous daily water balance model called SWAT(Soil and Water Assessment Tool) for the conterminous U.S. The local water balance is represented by four control volumes; (1) snow, (2) soil profile, (3) shallow aquifer, and (4) deep aquifer. The components of the water balance are simulated using "storage" models and readily available input parameters. ...

Soil water balance has response to climate change and evaluation of soil water change is one of the most important items of climate change impact assessment. GCM outputs under three scenarios were statistically downscaled during 2010~2039 to simulate the potential change of soil water balance in Wangdonggou watershed on the Loess Plateau with WEPP model. GCM predicted a 1.8 to 17.5% increase in...

recent droughts and indiscriminate use of ground water for agriculture, is the main problems of the especially desert country.water crisis has gripped all of country plains, and due tothe reduction of surface water resources and successive droughts, illegal exploitation of ground water resources is increasing.the knowledge of the water balance plains can be helped in the water resources managem...

a Centre for Rural Economy, School of Agriculture, Food and Rural Development, Newcastle University, Agriculture Building, NE1 7RU, Newcastle upon Tyne UK b MCB Group, Social Sciences, Wageningen University, Hollandseweg 1, 6706KN, Wageningen, The Netherlands c RIKILT-Institute of Food Safety, Akkermaalsbos 2, 6708 WB Wageningen, The Netherlands d VWA Food and Consumer Product Safety Authority ...

in recent years, changes in catchments water balance due to land use management have become the main concern of water resources authorities in iran. due to rapid population growth and land use changes, especially construction of taleghan dam, taleghan catchment has undergone rapid changes such as urban development, declining of rangelands, and deterioration of environment and erosion of soil re...

Accurately estimating consumptive water use in the Colorado River Basin (CRB) is important for assessing and managing limited water resources in the basin. Increasing water demand from various sectors may threaten long-term sustainability of the water supply in the arid southwestern United States. We have developed a first-ever basin-wide actual evapotranspiration (ETa) map of the CRB at the La...