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Assessing the Impacts of Non-point S...

Butler, Thomas W.

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Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary./
Author:	Butler, Thomas W.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	54 p.
Notes:	Source: Masters Abstracts International, Volume: 81-09.
Contained By:	Masters Abstracts International81-09.
Subject:	Environmental science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27665061
ISBN:	9781392456521

Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary.
Butler, Thomas W.

Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 54 p.

Source: Masters Abstracts International, Volume: 81-09.

Thesis (M.S.)--University of Maryland, College Park, 2019.

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

Academic research models for Chesapeake Bay have, traditionally, been forced with USGS inputs, flows and nutrient loads from 10 major rivers. These tributaries fail to account for 100% of the inputs entering the Bay. In contrast, models used for determining Total Maximum Daily Load for Chesapeake Bay are forced with output from a watershed model at thousands of locations, presumably, accounting for all these inputs. Our aim is to increase understanding of the impacts different forcing schemes have on water quality model simulation. Simulations were completed using three forcing approaches: 1) using "traditional" USGS-derived input from 10 major rivers; 2) using "concentrated" input from 10 major rivers derived from watershed model output; and 3) using "diffuse" input from 1117 rivers derived from watershed model output. Comparisons of these schemes revealed large impacts on simulations in Chesapeake Bay during periods of high flow and extreme weather events under diffuse forcing.

ISBN: 9781392456521Subjects--Topical Terms:

677245
Environmental science.
Subjects--Index Terms:

Chesapeake Bay

Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary.
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245 1 0 $a Assessing the Impacts of Non-point Source Freshwater and Nutrient Inputs on a Shallow Coastal Estuary.
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300 $a 54 p.
500 $a Source: Masters Abstracts International, Volume: 81-09.
500 $a Advisor: Hood, Raleigh R.
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506 $a This item must not be sold to any third party vendors.
520 $a Academic research models for Chesapeake Bay have, traditionally, been forced with USGS inputs, flows and nutrient loads from 10 major rivers. These tributaries fail to account for 100% of the inputs entering the Bay. In contrast, models used for determining Total Maximum Daily Load for Chesapeake Bay are forced with output from a watershed model at thousands of locations, presumably, accounting for all these inputs. Our aim is to increase understanding of the impacts different forcing schemes have on water quality model simulation. Simulations were completed using three forcing approaches: 1) using "traditional" USGS-derived input from 10 major rivers; 2) using "concentrated" input from 10 major rivers derived from watershed model output; and 3) using "diffuse" input from 1117 rivers derived from watershed model output. Comparisons of these schemes revealed large impacts on simulations in Chesapeake Bay during periods of high flow and extreme weather events under diffuse forcing.
590 $a School code: 0117.
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653 $a Chesapeake Bay
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653 $a Estuary
653 $a Numerical modeling
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710 2 $a University of Maryland, College Park. $b Marine-Estuarine-Environmental Sciences. $3 1023615
773 0 $t Masters Abstracts International $g 81-09.
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