A5062261734- Hydrology and Watershed Management Studies
- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Urban Stormwater Management Solutions
- Soil and Water Nutrient Dynamics
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Wastewater Treatment and Nitrogen Removal
- Groundwater flow and contamination studies
- Aeolian processes and effects
- Soil and Unsaturated Flow
- Hydraulic flow and structures
- Landslides and related hazards
- Freshwater macroinvertebrate diversity and ecology
- Water Quality and Pollution Assessment
- Irrigation Practices and Water Management
- Water Quality and Resources Studies
- Hydrology and Drought Analysis
- Water resources management and optimization
- Urban Heat Island Mitigation
- Hydrological Forecasting Using AI
- Wastewater Treatment and Reuse
- Peatlands and Wetlands Ecology
- Polymer-Based Agricultural Enhancements
- Dam Engineering and Safety
RMIT University
2022-2024
University of Wollongong
2023
University of Minnesota
2012-2022
MIT University
2022
National Bioproducts Institute (South Africa)
2021
Macquarie University
2021
Collaborative Research Group
2021
University of KwaZulu-Natal
2021
ORCID
2021
Science Museum of Minnesota
2017
To provide a common background and platform for consensual development of calibration validation guidelines, model developers and/or expert users the commonly used hydrologic water quality models globally were invited to write technical articles recommending procedures specific their model. This article introduces special collection 22 research that present discuss concepts in detail 25 models. The main objective this introductory is introduce summarize key aspects presented collection....
<abstract> As a continuation of efforts to provide common background and platform for development calibration validation (C/V) guidelines hydrologic water quality (H/WQ) modeling, ASABE members worked determine critical topics related model C/V, perform synthesis previously published special collection articles other relevant literature, topic-specific recommendations based on the as well personal modeling expertise. This article introduces nine research covering key H/WQ models. The...
Cover cropping practices are being researched to reduce artificial subsurface drainage NO 3 –N losses from agricultural lands in the Upper Mississippi watershed. This study was designed investigate influences of fall planting date and climate on cereal rye ( Secale cereale L.) biomass N uptake spring, assess loss reductions. A soil–plant–atmosphere simulation model, RyeGro, developed used predict cover crop establishment growth, soil water balance, cycling, mid‐September through May...
Abstract Effective impervious area (EIA), or the portion of total (TIA) that is hydraulically connected to storm sewer system, an important parameter in determining actual urban runoff. EIA has implications watershed hydrology, water quality, environment, and ecosystem services. The overall goal this study evaluate application successive weighted least square (WLS) method catchments with different sizes various hydrologic conditions determine fraction. Other objectives are develop insights...
Abstract This paper compares parameters that characterize vegetation flexibility effects on flow resistance and drag. Drag forces have been measured in a flume for simple cylindrical obstructions of the same shape size but with different under several conditions. data set is used to fit drag relate their value through Cauchy Number. A formulation presented where coefficient evaluated as function new calibration velocity parameter which related elastic modulus obstruction. While use Vogel...
Abstract Water quality and stream habitat in agricultural watersheds are under greater scrutiny as hydrologic pathways altered to increase crop production. Agricultural drainage ditches function remove water quickly from farmed landscapes. Conventional ditch designs lack the form of natural systems tend be unstable provide inadequate habitat. In October 2009, 1.89 km a conventional Mower County, Minnesota, was converted an alternative system with two‐stage channel investigate improvements...
Abstract Water quality and stream habitat in agricultural watersheds are under greater scrutiny as hydrologic pathways altered to increase crop production. Ditches have been traditionally constructed remove water from lands. Little attention has placed on alternative ditch designs that more stable provide diversity for wildlife aquatic species. In 2009, 1.89 km of a conventional drainage Mower County, Minnesota, was converted two‐stage (TSD) with small, adjacent floodplains mimic natural...
This is the first of two articles that develops and evaluates a fundamentally based detachment model. The proposed model provides framework for isolating flow from soil characteristics using relatively simple mathematical structure. Flow are estimated turbulent forces at boundary. normal, extreme value type I log normal probability density functions evaluated to represent characteristics. distribution shown be simpler adequately approximate distribution. usefulness was examined by...
Unprotected soil at construction sites often results in large rates of erosion. Five different erosion controltreatments were tested on the slopes a highway sedimentation basin to determine their impact vegetative growth, runoff,and The treatments bare (no treatment) condition, diskanchored straw mulch, woodfiber blanket, astraw/coconut and bondedfiber matrix product (hydraulically applied). A minimum three replicates was usedfor each treatment. Straw mulch selected as standard treatment for...
Knowledge of the effective impervious area (EIA) or degree to which surfaces are hydraulically connected drainage system is useful for improving hydrological and environmental models assessing effectiveness green stormwater infrastructure in urban watersheds. The goal this research develop a method estimate EIA fraction watersheds using readily available data. Since dependent on rainfall–runoff response cannot be solely determined based physical characteristics watershed, linked with...
Abstract Though it is well known that vegetation affects the water balance of soils through canopy interception and evapotranspiration, its hydrological contribution to soil hydrology stability yet be fully quantified. To improve understanding this process, dynamics have been monitored at three adjacent hillslopes with different covers (deciduous tree cover, coniferous grass cover), for nine months from December 2014 September 2015. The moisture values were translated into matric suction...
Vegetation and other surface roughness materials partition the shear force of flowing water into a portion actingon vegetation (vegetal shear) remainder acting on intervening soil (particle shear). The fraction is directly involved in subsequent particle detachment. purpose this study was to measurethe components stress quantify for various densities idealized elements representativeof non-submerged rigid overland flow. Insight magnitude vegetal isnecessary understanding role reducing and,...
Cover cropping practices are being researched to reduce artificial subsurface drainage nitrate-nitrogen (nitrate-N) losses from agricultural lands in the upper Mississippi watershed. A soil-plant-atmosphere simulation model, RyeGro, was developed quantify probabilities that a winter rye cover crop will nitrate-N given climatic variability region. This article describes plant growth submodel of Grosub, which estimates biomass production with radiation use efficiency-based approach for...
Current economic pressure, combined with growing public concern over nitrates in groundwater, has resulted increased interest managing N fertilizer corn (Zea mays L.) production. The response of modern hybrids to a number different field environments was investigated. Twelve elite were grown 13 and other evaluated five additional environments. All locations the U.S. Corn Belt. Results indicated statistically significant hybrid yield N. differed average yield, however no consistent × rate...
This is the second of two articles that develops and evaluates a fundamentally based detachment model. In this article, proposed model evaluated by predictive accuracy observed incipient motion rill erosion data. Observed noncohesive particles was used to assess general framework approach because parameters could be estimated without calibration. A simple two-dimensional representation estimate erodibility characteristics. The accurately represented values. for cohesive using 373 data sets...