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LISEM: A SINGLE‐EVENT, PHYSICALLY BASED HYDROLOGICAL AND SOIL EROSION MODEL FOR DRAINAGE BASINS. II: SENSITIVITY ANALYSIS, VALIDATION AND APPLICATION
Author(s) -
DE ROO A. P. J.,
OFFERMANS R. J. E.,
CREMERS N. H. D. T.
Publication year - 1996
Publication title -
hydrological processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.222
H-Index - 161
eISSN - 1099-1085
pISSN - 0885-6087
DOI - 10.1002/(sici)1099-1085(199608)10:8<1119::aid-hyp416>3.0.co;2-v
Subject(s) - surface runoff , infiltration (hvac) , interception , splash , hydrology (agriculture) , erosion , environmental science , wepp , hydraulic conductivity , drainage basin , soil science , catchment hydrology , geology , soil water , soil conservation , geomorphology , geotechnical engineering , ecology , cartography , geography , biology , physics , meteorology , agriculture , thermodynamics
A new hydrological and soil erosion model has been developed and tested: LISEM, the Limburg soil erosion model. The model uses physically based equations to describe interception, infiltration and soil water transport, storage in surface depressions, splash and flow detachment, transport capacity and overland and channel flow. From the validation results it is clear that, although the model has several advantages over other models, the results of LISEM 1.0 are far from perfect. Based on the sensitivity analysis and field observations, the main reasons for these differences seems to be the spatial and temporal variability of the soil hydraulic conductivity and the initial pressure head at the basin scale. Another reason for the differences between measured and simulated results is our lack or understanding of the theory of hydrological and soil erosion processes.