Exact analytical expressions for the piezometric profile and water exchange between stream and groundwater during and after a uniform rise of the stream level

作者: Michel C. Boufadel , Vallorie Peridier

DOI: 10.1029/2001WR000780

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摘要: [1] We consider an archetypical problem relevant to a confined aquifer in contact with stream. The model consists of idealized one-dimensional region 0 ≤ x L, where the left boundary at = is held fixed piezometric head h0, and right boundary's L increased from hL h0 constant rate. Exact solutions for all times, points aquifer, any possible rate change are presented instantaneous flow An exact expression exchange volume groundwater/stream interface arbitrary time also provided. This shows that there specific critical rising stream level above which net into below it out aquifer. solution regardless rise rate, certain water volume, inversely proportional enters

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