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Control Number310059
Date and Time of Latest Transaction20150706095030.AM
General Information150706s |||||||||b ||00|||
Cataloging SourceSTII-DOST
Local Call NumberScienceDirect
Main Entry - Personal NameSam S.Y. Wang
 Shields, F. Douglas, Jr.
 Yafei Jia
 Xiaobo Chao
 Cooper, Charles M.
Title StatementThree-dimensional numerical simulation of water quality and sediment-associated processes with application to a Mississippi Delta lake by Xiaobo Chao and 4 others
Physical Descriptionpages 1456-1466 computer file; text; 841kb
Summary, Etc.A three-dimensional water quality model was developed for simulating temporal and spatial variations of phytoplankton, nutrients, and dissolved oxygen in freshwater bodies. Effects of suspended and bed sediment on the water quality processes were simulated. A formula was generated from field measurements to calculate the light attenuation coefficient by considering the effects of suspended sediment and chlorophyll. The processes of adsorption-desorption of nutrients by sediment were described using the Langmuir Equation. The release rates of nutrients from the bed were calculated based on the concentration gradient across the water-sediment interface and other variables including pH, temperature and dissolved oxygen concentration. The model was calibrated and validated by applying it to simulate the concentrations of chlorophyll and nutrients in a natural oxbow lake in Mississippi Delta. The simulated time series of phytoplankton (as chlorophyll) and nutrient concentrations were generally in agreement with field observations. Sensitivity analyses were conducted to demonstrate the impacts of varying suspended sediment concentration on lake chlorophyll levels
Subject Added Entry - Topical TermEngineering
 Water quality model
 Nutrients, Oxbow lake
 Sediment
 Phytoplankton
LocationDOST STII ScienceDirect NONPRINTS NP 13-14907 1 13-14907 Online/Download 2010-12-02
  
     
 
Physical Location
Department of Science and Technology
Science and Technology Information InstituteScienceDirect
  
     
 
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