Comparing Simulated Hydrologic Response Before and After the 2011 Bastrop Complex Wildfire

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dc.contributor.advisorChow, T. Edwin
dc.contributor.authorStengel, Victoria G.
dc.contributor.committeeMemberJensen, Jennifer
dc.contributor.committeeMemberEarl, Richard A.
dc.date.accessioned2014-04-16T16:55:44Z
dc.date.available2014-04-16T16:55:44Z
dc.date.issued2014-05
dc.description.abstract<p>On September 4, 2011, the Bastrop Complex Wildfire grew into what would become the most destructive wildfire in the history of Texas. The fire consumed 130 square kilometers of wildland urban interface near Bastrop, TX. The Loblolly Pine trees of the Lost Pine Forest suffered high rates of tree mortality. At the time the region was experiencing one of the driest and hottest periods of record in Texas history.</p> <p>The purpose of this study was to explore possible changes in surface hydrology caused by the Bastrop Complex Wildfire. This study used multispectral remote sensing imagery acquired from Landsat 5 immediately before, and after the wildfire to classify land cover/land use (LCLU) change within the drainage area of the Colorado River where the wildfire occurred. The drainage area was defined by the upstream and downstream USGS streamgaging-stations along the Colorado River. The LCLU data were applied to the Soil Water Assessment Tool (SWAT) in order to simulate pre- and post-fire surface hydrology conditions. The resulting simulations were compared to examine possible changes in surface runoff volume and sediment yield for the continuous time simulation and for discrete rainfall events of varying magnitudes.</p> <p>The comparison of the continuous time simulation resulted in a significant increase in post-fire surface runoff and sediment yield. Despite the fact that there were no significant differences of water yield and time to peak among discrete rainfall events, it was found that the peak discharge increases with higher rainfall intensity. This research also reported a large percent increase in post-fire sediment yield for the discrete rain events that is consistent with the literature.</p>
dc.description.departmentGeography and Environmental Studies
dc.formatText
dc.format.extent89 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationStengel, V. G. (2014). <i>Comparing simulated hydrologic response before and after the 2011 Bastrop complex wildfire</i> (Unpublished thesis). Texas State University, San Marcos, Texas.
dc.identifier.urihttps://hdl.handle.net/10877/4974
dc.language.isoen
dc.subjectBastrop complex wildfire
dc.subjectWildfire
dc.subjectSurface hydrology
dc.subjectLost Pine forest
dc.subjectLoblolly Pine
dc.subjectMultispectral remote sensing imagery
dc.subjectColorado River
dc.subjectLCLU
dc.subjectLandsat
dc.subjectSWAT
dc.subjectSediment yield
dc.subjectSurface water yield
dc.subjectTime to peak
dc.subjectPeak discharge
dc.subjectHydrology simulation
dc.subjectLand cover change
dc.subjectWildland urban interface
dc.subject.lcshForest fires--Texas--Bastropen_US
dc.subject.lcshForest hydrologyen_US
dc.titleComparing Simulated Hydrologic Response Before and After the 2011 Bastrop Complex Wildfire
dc.typeThesis
thesis.degree.departmentGeography
thesis.degree.disciplineGeography
thesis.degree.grantorTexas State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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