Title:
Determining Watershed Flow Pathways Using Geochemistry and Timing
Determining Watershed Flow Pathways Using Geochemistry and Timing
| dc.contributor.author | Cary, R. H. | en_US |
| dc.contributor.author | Dowd, John F. | en_US |
| dc.contributor.author | Peters, N. E. | en_US |
| dc.contributor.corporatename | University of Georgia. Dept. of Geology | en_US |
| dc.contributor.editor | Carroll, G. Denise | en_US |
| dc.date.accessioned | 2013-02-22T20:26:26Z | |
| dc.date.available | 2013-02-22T20:26:26Z | |
| dc.date.issued | 2011-04 | |
| dc.description | Proceedings of the 2011 Georgia Water Resources Conference, April 11, 12, and 13, 2011, Athens, Georgia. | en_US |
| dc.description.abstract | Investigating storm runoff generation in watersheds is an area of ongoing hydrologic research. Geochemical tracer studies, such as static end-member mixing analysis (EMMA) and hysteresis loop analysis, have been used to evaluate these processes. While EMMA can assess the relative input of flow pathways for individual stream water quality samples collected during a storm, it cannot quantify their contributions continuously. Hysteresis loops of stream discharge versus geochemical tracer concentration can be used to estimate relative inputs of basic end-member pathways, but this approach only suggests the timing and dominance of flow pathways and these patterns alone cannot quantify their contributions. We propose a new method that incorporates both hysteresis loops and geochemical tracer studies to quantify runoff contributions from watershed flow pathways during a storm. The approach involves estimating relative tracer concentrations of four end-members, along with estimating the percentage of total stream discharge from each end-member. The method has been applied to a 22 year dataset from Panola Mountain Research Watershed, Georgia and has identified two distinct watershed responses to rain events. The responses appear be related to a threshold of 50-60mm of total rain. | en_US |
| dc.description.sponsorship | Sponsored by: Georgia Environmental Protection Division U.S. Geological Survey, Georgia Water Science Center U.S. Department of Agriculture, Natural Resources Conservation Service Georgia Institute of Technology, Georgia Water Resources Institute The University of Georgia, Water Resources Faculty | en_US |
| dc.description.statementofresponsibility | This book was published by Warnell School of Forestry and Natural Resources, The University of Georgia, Athens, Georgia 30602-2152. The views and statements advanced in this publication are solely those of the authors and do not represent official views or policies of The University of Georgia, the U.S. Geological Survey, the Georgia Water Research Institute as authorized by the Water Research Institutes Authorization Act of 1990 (P.L. 101-307) or the other conference sponsors. | en_US |
| dc.identifier.isbn | 0-9794100-24 | |
| dc.identifier.uri | http://hdl.handle.net/1853/46234 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.publisher.original | Warnell School of Forestry and Natural Resources, The University of Georgia | en_US |
| dc.relation.ispartofseries | GWRI2011. Environmental Protection | en_US |
| dc.subject | Water resources management | en_US |
| dc.subject | Watershed flow pathways | en_US |
| dc.subject | Rainstorms | en_US |
| dc.subject | Runoff | en_US |
| dc.subject | Geochemical tracer studies | en_US |
| dc.subject | Hysteresis loops | en_US |
| dc.title | Determining Watershed Flow Pathways Using Geochemistry and Timing | 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 | |
| relation.isOrgUnitOfPublication | 8873b408-9aff-48cc-ae3c-a3d1daf89a98 | |
| relation.isOrgUnitOfPublication | 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c | |
| relation.isOrgUnitOfPublication | 7c022d60-21d5-497c-b552-95e489a06569 | |
| relation.isSeriesOfPublication | e0bfffc9-c85a-4095-b626-c25ee130a2f3 |
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