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Correlating Bankfull Discharge Recurrence Interval to Land Use/Land Cover in Riparian Corridors of Varying Buffer Widths Using GIS Author: Franziska Whelan c/o 68-697 A Crozier Drive Phone: 808-637-4250 The hydrologic measurement of bankfull discharge is an important indicator of stream flow. The frequency of recurrence of bankfull discharge indicates the risk of flooding. This study tests the variability of bankfull discharge recurrence intervals with varying land use/land cover in riparian buffers in Pacific Northwest watersheds. Bankfull discharge recurrence intervals were determined from field data and stream flow records collected for 71 streams in the Pacific Northwest. The Hydrologic Modeling extension to ArcView Spatial Analyst was used for watershed delineation. ArcView GIS and ArcInfo were also utilized for USGS digital elevation model and land use/land cover data processing and analysis. |