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GSSHA (Gridded Surface/Subsurface Hydrologic Analysis) [1] is a two-dimensional, physically based watershed model developed by the Engineer Research and Development Center of the United States Army Corps of Engineers. It simulates surface water and groundwater hydrology, erosion and sediment transport.
Furthermore, "concerning the water level calculations in case of failure of a weir, the Bavarian Environmental Agency provided the Federal Waterways Engineering and Research Institute with those two-dimensional depth-averaged hydrodynamic models, which are covering the whole Bavarian part of the river Main. The models were created with the ...
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.
GIS revolutionized curation, manipulation, and input for complex computational hydrologic models [2] [3] For surface water modeling, digital elevation model are often layered with hydrographic data in order to determine the boundaries of a watershed. [4] Understanding these boundaries is integral to understanding where precipitation runoff will ...
SWAT is a continuous time model that operates on a daily time step at basin scale. The objective of such a model is to predict the long-term impacts in large basins of management and also timing of agricultural practices within a year (i.e., crop rotations, planting and harvest dates, irrigation, fertilizer, and pesticide application rates and timing).
A GIS watershed hydrology model link to evaluate water resources of the Lower Colorado River in Texas. In: Proceedings of Application of Advanced Information Technologies for the Management of Natural Resources. Sponsored by ASAE. June 17–19, 1993, Spokane, WA. Srinivasan, R. and J.G. Arnold. 1993. Basin scale water quality modeling using GIS.
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3D view. HEC-RAS is simulation software used in computational fluid dynamics – specifically, to model the hydraulics of water flow through natural rivers and other channels.. The program was developed by the United States Army Corps of Engineers in order to manage the rivers, harbors, and other public works under their jurisdiction; it has found wide acceptance by many others since its ...