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Full-Text Articles in Engineering

Hydrologic Variability And Change In The New England Region, Usa, Avirup Sen Gupta Jan 2010

Hydrologic Variability And Change In The New England Region, Usa, Avirup Sen Gupta

Electronic Theses and Dissertations

Traditional water resources management aims to ensure the steady and reliable water supply for human uses and maximize the economic benefits by dampening natural flow variability. However, such management practices essentially changes the flow regime in many ways and ecological degradation is one of the obvious consequences of that. Natural functioning and productivity of the native species require enough water flow in the streams and lake levels with sufficient quality. Thus, to protect the natural ecosystem diversity, sustainable water allocation policies have been developed and employed by many societies around the world. "Chapter 587: In-stream Flow and Lake and Pond …


Assessment Of Benthic Flux Of Dissolved Organic Carbon In Estuaries Using The Eddy Correlation Technique, Michael P. Swett Jan 2010

Assessment Of Benthic Flux Of Dissolved Organic Carbon In Estuaries Using The Eddy Correlation Technique, Michael P. Swett

Electronic Theses and Dissertations

Dissolved organic carbon (DOC) is a water quality concern in estuarine environments, as DOC facilitates mobilization of metals and organics in sediments and leads to toxic disinfection byproducts during water treatment. Export of DOC from sediments can vary with changing environmental conditions, including wetland restoration and rising sea levels. Therefore, it is important to quantify flux of DOC across the sediment-water interface (SWI). Existing DOC flux measurement techniques, such as equilibrium dialysis, porewater extraction, and benthic chamber measurement, are intrusive to the sediment environment and underestimate flux by only capturing certain flux contributions. In this research, methods for estimating benthic …