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Water Quantity and Quality of the Yahara River Chain of Lakes.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Water Quantity and Quality of the Yahara River Chain of Lakes./
作者:	Reimer, John R.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	182 p.
附註:	Source: Dissertations Abstracts International, Volume: 82-08, Section: B.
Contained By:	Dissertations Abstracts International82-08B.
標題:	Hydrologic sciences. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28315782
ISBN:	9798569967933

Water Quantity and Quality of the Yahara River Chain of Lakes.
Reimer, John R.

Water Quantity and Quality of the Yahara River Chain of Lakes. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 182 p.

Source: Dissertations Abstracts International, Volume: 82-08, Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2021.

This item must not be sold to any third party vendors.

The Yahara River Chain of Lakes (RCL), located in central Dane County, WI recently have experienced flooding (water quantity) and eutrophication (water quality), resulting in negative outcomes. The objective of this dissertation is to address water quantity, such as appropriate water levels and flood risk, and water quality at beaches and streams in the Yahara RCL. The results of this dissertation are intended to increase our understanding of one of the world's well-known lake systems - Yahara River Chain of Lakes. Furthermore, better understanding of how to manage and improve the Yahara RCL with broader impacts in application to other lake systems throughout the world is considered. In Chapter 2, the state of the art Integrated Nowcast and Forecast Operation System (INFOS) is developed to provide water information for the Yahara RCL. The system infrastructure consists of a web portal to retrieve and display observations that are used to drive models under a high- performance computing server. Water level and flow information are obtained from a suite of models that directly simulates the RCL system. INFOS reliably and effectively models real-time reverse flows due to sustained wind forcings or seiches, and flow choking due to channel constriction. Water level planning scenarios provide insight for lake management to reduce floods under extreme rainfall events. Overall, INFOS provides reliable and timely water information for the RCL for sharing to the public, managers, and researchers.In Chapter 3, sustainability assessment of flood risks from environmental, social, and economic perspectives in a RCL is performed. The flood assessment framework consists of five components including compiling data, modeling, mapping, estimating loss, and estimating risk. The modeled economic impact analysis reveals that the Yahara RCL is susceptible to large loss (in USD) at high return periods and long storm durations but a large risk at low return periods and long durations. The results of social impacts show that the risk of people displaced is of concern at a low return period (10 year) independent of storm duration. From a sustainability viewpoint, Lake Monona is most at risk than the other lakes, suggesting flood mitigation efforts to improve Lake Monona would be beneficial. Overall, this chapter illustrates the importance of conducting flood risks in a RCL which vary depending on storm duration and return period.In Chapter 4, an innovative Water Exclosure Treatment System (WETS) is developed and installed to minimize the occurrence of beach closures due to algae and Escherchia coli (E. coli). WETS consists of an "exclosure" sub-system with a five-sided polypropylene, barrier that excludes offshore lake contaminated water from the swimming area. To determine sizing of the treatment system, evaluate efficiency of UV disinfection, and aid in the design of the inlet and outlet locations for the pump system, computational fluid dynamics modeling is employed. Flushing time and Residence time maps are developed, depicting the duration of particles within the swimming area. Since deployment of WETS, there have been no beach closures issued. Overall, WETS, an innovative Water Exclosure Treatment System, provides safe, clean water inside the exclosure for minimizing beach closure.In Chapter 5, the effect of legacy phosphorus (P) in streams on water quality before and after dredging stream sediments is assessed. Legacy P in sediments in the stream bed was discovered based on age and high concentrations of P. Laboratory microcosm and field mesocosm experiments revealed stream sediments were diffusing legacy P. Water quality response before and after dredging was evaluated from long term gage station data showing stream dredging reduced legacy P concentration from previously a source to presently a sink of upstream P. Overall, this chapter shows the important role that legacy P plays in stream sediments and how they can affect water quality outcomes and be remediated for the future.

ISBN: 9798569967933Subjects--Topical Terms:

3168407
Hydrologic sciences.
Subjects--Index Terms:

Flood risk

Water Quantity and Quality of the Yahara River Chain of Lakes.
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520 $a The Yahara River Chain of Lakes (RCL), located in central Dane County, WI recently have experienced flooding (water quantity) and eutrophication (water quality), resulting in negative outcomes. The objective of this dissertation is to address water quantity, such as appropriate water levels and flood risk, and water quality at beaches and streams in the Yahara RCL. The results of this dissertation are intended to increase our understanding of one of the world's well-known lake systems - Yahara River Chain of Lakes. Furthermore, better understanding of how to manage and improve the Yahara RCL with broader impacts in application to other lake systems throughout the world is considered. In Chapter 2, the state of the art Integrated Nowcast and Forecast Operation System (INFOS) is developed to provide water information for the Yahara RCL. The system infrastructure consists of a web portal to retrieve and display observations that are used to drive models under a high- performance computing server. Water level and flow information are obtained from a suite of models that directly simulates the RCL system. INFOS reliably and effectively models real-time reverse flows due to sustained wind forcings or seiches, and flow choking due to channel constriction. Water level planning scenarios provide insight for lake management to reduce floods under extreme rainfall events. Overall, INFOS provides reliable and timely water information for the RCL for sharing to the public, managers, and researchers.In Chapter 3, sustainability assessment of flood risks from environmental, social, and economic perspectives in a RCL is performed. The flood assessment framework consists of five components including compiling data, modeling, mapping, estimating loss, and estimating risk. The modeled economic impact analysis reveals that the Yahara RCL is susceptible to large loss (in USD) at high return periods and long storm durations but a large risk at low return periods and long durations. The results of social impacts show that the risk of people displaced is of concern at a low return period (10 year) independent of storm duration. From a sustainability viewpoint, Lake Monona is most at risk than the other lakes, suggesting flood mitigation efforts to improve Lake Monona would be beneficial. Overall, this chapter illustrates the importance of conducting flood risks in a RCL which vary depending on storm duration and return period.In Chapter 4, an innovative Water Exclosure Treatment System (WETS) is developed and installed to minimize the occurrence of beach closures due to algae and Escherchia coli (E. coli). WETS consists of an "exclosure" sub-system with a five-sided polypropylene, barrier that excludes offshore lake contaminated water from the swimming area. To determine sizing of the treatment system, evaluate efficiency of UV disinfection, and aid in the design of the inlet and outlet locations for the pump system, computational fluid dynamics modeling is employed. Flushing time and Residence time maps are developed, depicting the duration of particles within the swimming area. Since deployment of WETS, there have been no beach closures issued. Overall, WETS, an innovative Water Exclosure Treatment System, provides safe, clean water inside the exclosure for minimizing beach closure.In Chapter 5, the effect of legacy phosphorus (P) in streams on water quality before and after dredging stream sediments is assessed. Legacy P in sediments in the stream bed was discovered based on age and high concentrations of P. Laboratory microcosm and field mesocosm experiments revealed stream sediments were diffusing legacy P. Water quality response before and after dredging was evaluated from long term gage station data showing stream dredging reduced legacy P concentration from previously a source to presently a sink of upstream P. Overall, this chapter shows the important role that legacy P plays in stream sediments and how they can affect water quality outcomes and be remediated for the future.
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