A clear understanding of a model is important for its appropriate use. In this article, eleven watershed scale hydrologic and nonpoint-source pollution models are reviewed: AGNPS, AnnAGNPS, ANSWERS, ANSWERS-Continuous, CASC2D, DWSM, HSPF, KINEROS, MIKE SHE, PRMS, and SWAT. AnnAGNPS, ANSWERS-Continuous, HSPF, and SWAT are continuous simulation models useful for analyzing long-term effects of hyd...

As climate change is projected to impose profound global variations in the freshwater resources, assessing the impacts of the former on the latter is a fundamental task for improving the water management, namely, in arid and semiarid areas, as there a plenty of in countries like Iran. Such is the objective of the present paper, where the impacts of climate change on the water availability in th...

resistance increases with age, but molecular mechanisms remain unclear. Aging causes loss of subcutaneous white adipose tissue (sWAT) associated with a redistribution of fat from peripheral to central stores [1]. Interestingly, in older individuals the ratio of peripheral/central fat is a stronger determinant of insulin resistance than central adiposity alone [2]. This suggests sWAT is likely t...

The calibration and execution of large hydrological models, such as SWAT (soil and water assessment tool), developed for large areas, high resolution, and huge input data, need not only quite a long execution time but also high computation resources. SWAT hydrological model supports studies and predictions of the impact of land management practices on water, sediment, and agricultural chemical ...

The size, scale, and number of subwatersheds can affect a watershed modeling process and subsequent results. The objective of this study was to determine the appropriate level of subwatershed division for simulating flow, sediment, and nutrients over 30 years for four Iowa watersheds ranging in size from 2,000 to 18,000 km2 with the Soil and Water Assessment Tool (SWAT) model. The results of th...