Modeling Stream Flow Using GIS

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dc.contributor.advisor Hugh A. Devine, Committee Chair en_US
dc.contributor.advisor John E. Parsons, Committee Member en_US
dc.contributor.advisor Casson Stallings, Committee Member en_US VanBrunt, Daniel K en_US 2010-04-02T17:55:37Z 2010-04-02T17:55:37Z 2002-04-24 en_US
dc.identifier.other etd-04232002-115609 en_US
dc.description.abstract The Delaware Water Gap National Recreation Area (DEWA) would like to utilize hydrologic modeling coupled with GIS to help with the prediction of water quality changes in the watersheds entering the upper Delaware River. The first step towards completing this goal is to create a model that can accurately predict flow. The hydrologic model SWAT was used to model flow in the Broadhead watershed for DEWA by the Center for Earth Observation (CEO) at North Carolina State University (NCSU). The Broadhead watershed is located in North Eastern Pennsylvania and flows through DEWA on its way to the Delaware River. Based on limited data and the criteria set forth by DEWA, SWAT was chosen from 11 different models as best suited to meet DEWA's needs. The data used to run the SWAT model included a 30-meter DEM, STATSGO soils data, a USGS landuse/ landcover map, and daily weather data from January 1, 1993 through October 20, 1999. The data used to calibrate the model consisted of flow data from two USGS gage stations, Minisink Hills and Anamolink, which are located within the Broadhead basin. The flow data from the two USGS gage stations were separated into surface flow and base flow using the USGS model HYSEP. The Broadhead basin was separated into ten sub-watersheds. Two sub-watersheds contributed to the Anamolink catchment and eight sub-watersheds contributed to the Minisink catchment (the Minisink catchment contains the Anamolink catchment). The Hydrologic Response Units (HRUs) were set to include soil types and landuse/ landcover types greater than or equal to 5% of the sub-watershed area. The calibration period of the model was run from January 1, 1993 to December 31, 1995, and the validation period was run from January 1, 1996 through October 20, 1999. The model was run on both an annual and monthly time step. For the monthly time step the model was tested for both winter and non-winter months. The model predicted total flow on an annual time step within 16% of observed flow for the Anamolink basin, and within 18% of observed flow for the Minisink basin. However, more data and calibration is required to achieve the goal of predicting flow on a monthly time step. en_US
dc.rights I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. en_US
dc.subject GIS en_US
dc.subject SWAT en_US
dc.subject Hydrologic Modeling en_US
dc.subject DEWA en_US
dc.subject Broadhead en_US
dc.title Modeling Stream Flow Using GIS en_US MS en_US thesis en_US Natural Resources en_US

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