Document Type

Article

Publication Date

1979

Abstract

The megawatershed model is a concept of the behavior of groundwater in large- area watersheds. tis decigned to enhance success In the exploration for groundwater, particularly in faut-controlled regions. in such- regions surface and subsurface water flow may be strongly influenced by structural features. The latter constitutes zones of secondary permeability through which large amounts of water may flow. Fecognition of the significance of such a model was largely due to the availability of space photographs, which cover large areas of the Earth and allow the nterpratation af regional patterns, and the correlation ot drainage with structure. The model takes into account the water source tfom preclpitation, the catchment area, the infiliration process. the transmission mechanisms , and the water storage capacity of the system. An example of the application gf the model to groundwate S exploration is given in the Red Sea Province of eastern Sudan,

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