Morel-Seytoux, Hubert J., authorColorado State University, publisher2020-02-052020-02-052008https://hdl.handle.net/10217/200695http://dx.doi.org/10.25675/10217/2006952008 annual AGU hydrology days was held at Colorado State University on March 26 - March 28, 2008.Close to a river the traditional groundwater Dupuit assumption of horizontal flow does not hold. In order to treat the problem accurately one would need to use a 3-dimensional numerical model with small cells in the vicinity of the river. Presented here is an analytic approximate way to avoid this extra complication and still describe accurately the exchange flow between the stream and the aquifer.born digitalproceedings (reports)engCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Text