Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Variable Source Area"”.
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Enhanced Soil Moisture and Streamflow Estimation in Ungauged or Data-Scarce Watersheds
… where the spatio-temporal dynamics of saturated areas influence both the distributed (soil moisture state, runoff generation, or pollutant export) and integrated (streamflow) watershed responses. While streamflow is commonly used to constrain model parameters due to its availability and …
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Modeling recession flow and tracking the fate and transport of nitrate and water from hillslope to stream
… whose results led to the development of the Variable Source Area paradigm, by also saturating, covering, and allowing the experimental hillslope to drain until it no longer yielded water. In the historical experiment there was fast drainage for 1.5 d, followed by slow drainage for ~140 d, …
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Coupling Physical and Machine Learning Models with High Resolution Information Transfer and Rapid Update Frameworks for Environmental Applications
… short-term, high-risk runoff from critical source areas (CSAs) in watersheds which are significant sources of non point source (NPS) pollution. This study couples the Soil and Water Assessment Tool-Variable Source Area (SWAT-VSA) model with the Climate Forecast System Reanalysis (CFSR) model …
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Essays on Water Quality Management for the Chesapeake Bay Watershed
… pollution from agricultural nonpoint pollution sources and explore farmers' incentives when participating in water quality trading programs. Chapter 1 investigates landscape targeting of best management practices (BMPs) based on topographic index (TI) to determine how targeting would affect …
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Legacy Nutrient Management and Remediation in Diverse Agricultural Watersheds
… expression of legacy phosphorus export in a variable source area (VSA)–dominated agricultural watershed within the Lake Champlain Basin. Using the SWAT–VSA model calibrated for streamflow and total phosphorus (TP), this chapter examines long-term phosphorus export under current agricultural …
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Quantifying the Impact of Climate Change on Water Availability and Water Quality in the Chesapeake Bay Watershed
… impact of climate change and climate on water resources, nutrient cycling and export in agroecosystems, and agricultural conservation practices in the Chesapeake Bay watershed. This is accomplished by developing and employing a suite of modelling tools. GHG emissions from agroecosystems, …