construction and operation of dams have two main effects on streams. at first it increases detention time and then leads to thermal stratification. changing of water quality is the result of these effects and the outflow has different physical, chemical and biological characteristics from inflow.in this study thermal regime in proposed bakhtyari reservoir was simulated with ce-qual-w2 model. th...

Abstract One of the essential issues in quality management water resources is determination level eutrophication and dissolved oxygen dam reservoirs other bodies. It possible to study changes concentration using qualitative models. In this study, CE-QUAL-W2, a two-dimensional model hydrodynamics capable predicting behavior aquatic ecosystems, has been used simulate eutrophication. As case Yamch...

Watershed nutrient management is essential in minimizing the eutrophication rate of reservoirs. A shortcoming in nutrient management of watershed-reservoir systems has been the lack of successful linking of watershed and water body models to evaluate impact of watershed management options on reservoir water quality. The objectives of this research were to 1) calibrate and validate a Soil and Wa...

Spill Management Information System (SMIS) is a geographic information system (GIS)-based decision support system designed to effectively manage the risks associated with accidental or intentional releases of a hazardous material into an inland waterway. SMIS provides critical planning and impact information to emergency responders in anticipation of, or following such an incident. SMIS couples...

ABSTRACT This study applies a 2-D hydrodynamic model (CE-QUAL-W2) for simulating water quality dynamics in tropical reservoir located Fortaleza, Ceará, Brazil. While rainfall concentrates basically the first semester, this receives untreated sewage from an urban catchment throughout year. To deal with data scarcity, simplifications are justified and several adjustments carried out, so that only...