This record is being processed for inclusion into GeoRef. It may not yet have been indexed, given a translated title, or checked by a GeoRef editor.

Modeling flow, nutrient, and sediment delivery from a large international watershed using a field-scale SWAT model

Saved in:
Online Access: Get full text
doi: 10.1111/1752-1688.12779
Authors:Dagnew, Awoke; Scavia, Donald; Wang, Yu-Chen; Muenich, Rebecca; Long, Colleen; Kalcic, Margaret
Author Affiliations:Primary:
Environmental Consulting and Technology, Water Resources, Ann Arbor, MI, United States
University of Michigan, School for Environment and Sustainability, Ann Arbor, MI, United States
Arizona State University, Sustainable Engineering and the Built Environment, Tempe, AZ, United States
Ohio State University, Food, Agriculture and Biological Engineering, Columbus, OH, United States
Volume Title:Journal of the American Water Resources Association
Source:Journal of the American Water Resources Association, 55(5), p.1288-1305. Publisher: Wiley Interscience on behalf of American Water Resources Association, Middleburg, VA, United States. ISSN: 1093-474X
Publication Date:2019
Note:In English. 62 refs.; illus., incl. 6 tables, sketch maps
Summary:A large international watershed, the St. Clair-Detroit River System, containing both extensive urban and agricultural areas, was modeled using the Soil and Water Assessment Tool (SWAT) model. The watershed, located in southeastern Michigan, United States, and southwestern Ontario, Canada, encompasses the St. Clair, Clinton, Detroit (DT), Sydenham (SY), Upper, and Lower Thames subwatersheds. The SWAT input data and model resolution (i.e., hydrologic response units, HRUs), were established to mimic farm boundaries, the first time this has been done for a watershed of this size. The model was calibrated (2007-2015) and validated (2001-2006) with a mix of manual and automatic methods at six locations for flow and water quality at various time scales. The model was evaluated using Nash-Sutcliffe efficiency and percent bias and was used to explore major water quality issues. We showed the importance of allowing key parameters to vary among subwatersheds to improve goodness of fit, and the resulting parameters were consistent with subwatershed characteristics. Agricultural sources in the Thames and SY subwatersheds and point sources from DT subwatershed were major contributors of phosphorus. Spatial distribution of phosphorus yields at HRU and subbasin levels identified locations for potential management targeting for both point and nonpoint sources and revealed that in some subwatersheds nonpoint sources are dominated by urban sources. Abstract Copyright (2019), American Water Resources Association.
Subjects:Agricultural waste; Agriculture; Calibration; Concentration; Critical load; Data acquisition; Data processing; Discharge; Drainage basins; Fertilizers; Hydrology; Land use; Models; Nonpoint sources; Nutrients; Optimization; Phosphorus; Pollution; Rural environment; Sediments; Spatial distribution; SWAT model; Urban environment; Waste disposal; Water management; Water quality; Water resources; Water use; Watersheds; Canada; Detroit River; Eastern Canada; Essex County Ontario; Lake Saint Clair; Michigan; Michigan Lower Peninsula; North America; Ontario; Oxford County Ontario; Saint Clair River; Sanilac County Michigan; United States; Nash-Sutcliffe efficiency coefficient
Coordinates:N413500 N434000 W0803000 W0831500
Record ID:869751-14
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute. Reference includes data from John Wiley & Sons, Chichester, United Kingdom
Tags: Add Tag
No Tags, Be the first to tag this record!