Watershed model sensitivity to bacteria parameters

Radcliffe, David E.; Matthews, Monte; Cabrera, Miguel L.

Title:

Watershed model sensitivity to bacteria parameters

dc.contributor.author	Radcliffe, David E.
dc.contributor.author	Matthews, Monte
dc.contributor.author	Cabrera, Miguel L.
dc.contributor.corporatename	University of Georgia. Dept. of Crop and Soil Sciences	en_US
dc.contributor.editor	Hatcher, Kathryn J.	en_US
dc.date.accessioned	2013-07-09T23:24:59Z
dc.date.available	2013-07-09T23:24:59Z
dc.date.issued	2003-04
dc.description	Proceedings of the 2003 Georgia Water Resources Conference, held April 23-24, 2003, at the University of Georgia.	en_US
dc.description.abstract	Watershed-scale models can be used to determine the pollutant daily load in TMDL streams, or to test the effect of different scenarios for reducing bacterial load. HSPF (Hydrological Simulation Program – FORTRAN ) is a watershed-scale model distributed as part of the EPA BASINS system. EPA has also developed a Bacterial Indicator Tool for calculating the effect of livestock and septic systems on the bacterial parameters required by HSPF. We used HSPF and the Bacterial Indicator Tool to predict stream flow and FC concentrations in the Little River watershed of the Upper Oconee River basin and test for model sensitivity to bacteria parameters. We calibrated flow and FC concentrations using data from a USGS gaging station at the Highway 16 crossing near Eatonton, GA. The bacteria samples were collected during the period 1990 to 1994. We tested the sensitivity of the model predictions of FC to bacteria parameters by doubling the values of the parameters and calculating the root mean square change in predicted FC concentration. The most sensitive parameters were (in order of decreasing sensitivity): number of beef cattle, number of dairy cattle, time cattle spend in stream, and in-stream first-order decay rate.	en_US
dc.embargo.terms	null	en_US
dc.identifier.isbn	0935835083
dc.identifier.uri	http://hdl.handle.net/1853/48299
dc.language.iso	en_US	en_US
dc.publisher	Georgia Institute of Technology	en_US
dc.publisher.original	Institute of Ecology	en_US
dc.relation.ispartofseries	GWRI2003. Nonpointsources and buffers	en_US
dc.subject	Water resources management	en_US
dc.subject	Watershed modeling	en_US
dc.subject	Bacteria	en_US
dc.title	Watershed model sensitivity to bacteria parameters	en_US
dc.type	Text
dc.type.genre	Proceedings
dspace.entity.type	Publication
local.contributor.corporatename	Georgia Water Resources Institute
local.contributor.corporatename	School of Civil and Environmental Engineering
local.contributor.corporatename	College of Engineering
local.relation.ispartofseries	Georgia Water Resources Conference
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