Simulation of local watershed nutrient and sediment delivery to Lake Texoma.

A hydrologic model and watershed export model was used to estimate the loading of nutrients and total suspended solids from un-gaged local watersheds associated with Lake Texoma. Discharge to the reservoir from local watersheds was predicted using a modification of the curve number method in HEC Hydrologic Modeling System (HEC-HMS). Event mean concentrations were applied to land use to estimate loadings of nutrients and TSS. Total discharge from the local watersheds was estimated to be 3.02 x 107 cubic meters for a study window of March 1 to May 31, 1997, less than 10 percent of the input to the lake from the Red River and Washita River systems. Loadings were estimated to be 33,553 kg nitrogen, 4,401 kg phosphorus, and 3,423,140 kg TSS. The models and results obtained from their application appear to have potential utility for use in a water quality management decision support system for the reservoir.

Grantor dc:publisher

University of North Texas

Year dc:date

2004

Author dc:creator

• Upton, Alexandra C.

Contributors dc:contributor

• Dickson, Kenneth L.
• Acevedo, Miguel F.
• Waller, William T.

• Water quality -- Texoma, Lake (Okla. and Tex.)
• Water -- Pollution -- Texoma, Lake (Okla. and Tex.)
• watershed
• nutrients
• sediment
• simulation
• Lake Texoma

Statement dc:rights

• Public
• Copyright
• Upton, Alexandra C.
• Copyright is held by the author, unless otherwise noted. All rights reserved.

Language dc:language

English

Identifier

oclc: 55701005
untcat: b2627783
https://digital.library.unt.edu/ark:/67531/metadc4479/
ark: ark:/67531/metadc4479

OAI identifier oai:identifier

info:ark/67531/metadc4479