A5085860399- Hydrology and Sediment Transport Processes
- Hydrology and Watershed Management Studies
- Marine and coastal ecosystems
- Flood Risk Assessment and Management
- Aquatic Ecosystems and Phytoplankton Dynamics
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Oil Spill Detection and Mitigation
- Water Quality and Pollution Assessment
- Fish Ecology and Management Studies
- Coastal and Marine Dynamics
- Toxic Organic Pollutants Impact
- Groundwater flow and contamination studies
- Oceanographic and Atmospheric Processes
- Aeolian processes and effects
- Water Quality Monitoring and Analysis
- Atmospheric and Environmental Gas Dynamics
- Aquatic Invertebrate Ecology and Behavior
- Meteorological Phenomena and Simulations
- Water Quality Monitoring Technologies
- Water Quality and Resources Studies
- Mercury impact and mitigation studies
- Aquatic and Environmental Studies
- Wind and Air Flow Studies
- Hydrocarbon exploration and reservoir analysis
University of Mississippi
2016-2025
Chesapeake Public Schools
2024
Water Research Foundation
2024
Arizona State University
2024
Lawrence Berkeley National Laboratory
2024
National Sedimentation Laboratory
2006-2017
Carrier (United States)
2003-2015
Agricultural Research Service
2006
National University of Singapore
1999-2004
This paper presents the development and application of a three-dimensional oil spill model for predicting movement fate an slick in coastal waters Singapore. In model, is divided into number small elements or grids simulating processes spreading, advection, turbulent diffusion, evaporation, dissolution, vertical dispersion, shoreline deposition adsorption by sediment. capable horizontal surface slick, mass balance particle concentration distribution water body. Satellite images field...
<title>Abstract</title> Saline lakes are hypersensitive to changes in their water balance and therefore show amplified responses climatic land-use catchment. However, despite the resulting, often dramatic ecological consequences, saline rank low on policy agendas as they assumed support few ecosystem services levels of biodiversity. Here, we challenge this view evaluate threatened species 84 distributed across globe. We found that harbour not only aquatic biota but also a diverse range...
Water quality models are critical tools for the development of total maximum daily loads (TMDLs) and evaluation water management alternatives by stakeholders state environmental protection agencies. Currently there is a large availability that can be used to support TMDL studies, selection particular model requires good understanding limitations, capabilities, data requirements. The ASCE/Environmental Resources Institute (EWRI) Analysis Modeling Task Committee was established in part produce...
Abstract This article presents the capabilities of a numerical model, CCHE2D, by using its application to study response highly complex water system, Lake Pontchartrain, Louisiana, under extreme conditions Hurricane Katrina in 2005 and flood release from Bonnet Carré Spillway 1997. The simulations were validated field data collected US Geological Survey Army Corps Engineers, as well satellite imagery obtained National Oceanic Atmospheric Administration. close agreements with technically...
A three-dimensional numerical model was developed for simulating the phosphorus concentration in shallow lakes. In this model, computational domain divided into two parts: water column and bed sediment layer. The processes of mineralization, settling, adsorption, desorption, release (diffusion), growth, death phytoplankton were taken account, organic phosphorus, phosphate, related quality constituents simulated. concentrations adsorbed (particulate) dissolved phosphate due to...
ABSTRACT Over the past three decades, simplified empirical formulas contributed greatly in a rapid evaluation of oil slicks spreading and drifting. In recent years, however, with development efficient numerical schemes enormous improvement computational resources, new alternatives have appeared. Nowadays spill operational models can afford to use more accurate physically relevant mathematical formulations for slick dynamics simulation. The recently developed Multiphase Oil Spill Model (MOSM)...
Abstract Three major sediment‐associated processes were presented to describe the effects of sediment on water quality processes, including effect light intensity for growth phytoplankton (PHYTO), adsorption–desorption nutrients by and release from bed layer. A formula was generated field measurements calculate attenuation coefficient considering concentrations chlorophyll suspended (SS). The adsorbed dissolved because calculated using two formulas that derived based Langmuir Equation. rates...
A three-dimensional buoyancy-extended version of k–ε turbulence model was developed for simulating the turbulent flow and heat transport in a curved open channel. The density-induced buoyant force included model, influence temperature stratification on field considered. fields were simulated simultaneously. validated by comparison with laboratory measurements, generally good agreement experimental data. velocity thermal isothermal channel is presented effects curvature are also discussed.
In order to protect the city of New Orleans from Mississippi River flooding, Bonnet Carré Spillway (BCS) was constructed 1929 1936 divert flood water river into Lake Pontchartrain and then Gulf Mexico. During BCS opening for release, large amounts freshwater, nutrients, sediment, etc. were discharged Pontchartrain, caused a lot environmental problems. To evaluate impacts on lake ecosystems, two-dimensional numerical model developed based CCHE2D applied simulate flow circulation, sediment...
A three-dimensional numerical model was developed for simulating the flow field and mass concentration distribution in a shallow oxbow lake, Deep Hollow Lake, Mississippi. Flow within lake primarily wind-induced, simulated dynamics of wind-driven transport were validated using measurements. Two data sets from Lake used test. The first set resulted slug injection tracer dye, with measurements dye at selected intervals over two days. measured distributions agreed quite well. second test...
In June, 2008, the Mississippi River in Midwest USA experienced a high flood. More than 22 breached levees were observed along River, resulting at least 24 fatalities 51 counties of 5 states (Illinois, Missouri, Wisconsin, Iowa, and Minnesota). order to study flood impact on agriculture zones, computational model, CCHE2D, was applied simulate levee breaching propagation one reach near Canton City, Missouri. Due difficulty obtain field data for such large scale problems, remote sensing used...
Xiaowan Reservoir was created by the construction of Dam on Mekong River. This dam is second highest arch in world with 292 m tall and 902 long. The reservoir about 178km from upstream to dam, surface area around 189 km2. water depth near very deep, which normally varies 200 270m seasonally. For such a deep reservoir, vertical temperature distribution show significant stratified structure. In this study, three dimensional numerical model developed for simulating flow fields dam. effects...