A geomorphology-based semi-distributed watershed model

نویسندگان

  • Jozsef Szilagyi
  • Marc B. Parlange
چکیده

A semi-distributed watershed model was developed that conceptualizes the catchment as a cascade of nonlinear storage elements whose geometric dimensions are derived from the Horton±Strahler ordering of the stream network. Each storage element represents quick storm runo€ over land or in a channel segment. The physically based groundwater submodel is parameterized through the application of the Brutsaert±Nieber recession ̄ow analysis and it provides continuous base ̄ow separation. The model requires the calibration of seven parameters from a one year rainfall±runo€ record. It was tested on the Mahantango Creek watershed in the Susquehanna River basin, Pennsylvania. Ó 1999 Elsevier Science Ltd. All rights reserved.

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تاریخ انتشار 1999