Diverging Overland Flow
Author(s) -
V. P. Singh,
Necati Ağıralioğlu
Publication year - 1981
Publication title -
hydrology research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 48
eISSN - 1996-9694
pISSN - 0029-1277
DOI - 10.2166/nh.1981.0008
Subject(s) - surface runoff , computation , watershed , grid , stability (learning theory) , flow (mathematics) , mathematics , mathematical optimization , surface (topology) , computer science , hydrology (agriculture) , algorithm , geometry , geology , geotechnical engineering , ecology , machine learning , biology
The diverging overland flow model is utilized to predict surface runoff from several natural watersheds. The Lax – Wendroff scheme is used to obtain numerical solutions. This scheme is explicit, single step and second order. An analytical criterion is developed to determine time step for computation for a specified grid length in space. This criterion ensures numerical stability and convengence. The diverging geometry is specified from watershed topography. Thus the model contains one parameter which is optimized for each watershed by the Rosenbrock – Palmer optimization algorithm. The model results compare satisfactorily with runoff observations.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom