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Calibration and identifiability analysis of a water quality model to evaluate the contribution of different processes to the short‐term dynamics of suspended sediment and dissolved nutrients in the surface water of a rural catchment
Author(s) -
van Der Perk M.
Publication year - 1998
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(19980430)12:5<683::aid-hyp630>3.0.co;2-d
Subject(s) - environmental science , water quality , hydrology (agriculture) , sediment , identifiability , hydrograph , nutrient , water framework directive , suspended solids , drainage basin , environmental engineering , geology , chemistry , ecology , wastewater , paleontology , geotechnical engineering , machine learning , computer science , biology , cartography , organic chemistry , geography
A method that combines calibration and identifiability analysis of a dynamic water quality model to evaluate the relative importance of various processes affecting the dynamic aspects of water composition is illustrated by a study of the response of suspended sediment and dissolved nutrients to a flood hydrograph in a rural catchment area in the Netherlands. Since the water quality model simulates the observed concentrations of suspended sediment and dissolved nutrients reasonably well, the most important processes during the observed flood hydrograph could be determined. These were erosion, exchange between dissolved phase and bed sediments and denitrification. It is concluded that the method is very useful for identifying the most significant model parameters and processes that are essential for water quality modelling. © 1998 John Wiley & Sons, Ltd.