Abstract
Integrating GIS to Analyze the Coastal Geomorphology of Northern California Track: Ocean, Coastal, and Marine Resources Author(s): Franziska Whelan Uplifted marine terraces and beach ridges dominate the coastal geomorphology along the Lost Coast of California. However, repetitive, catastrophic tsunamis were also recorded along the California coastline. These high magnitude-low frequency events are now generally credited as a causative mechanism for geomorphic change in coastal landforms. This project analyzes marine deposits along the Lost Coast using ArcGIS (ArcView 8.x) and the ArcGIS Spatial Analyst and 3D Analyst extensions. GIS advances and remote sensing data sets, such as high-resolution orthoimagery, permit the spatial analysis of coastal landscapes for evidence of geomorphic change. GIS facilitates comprehensive mapping and spatial analysis of complex characteristics of coastal landforms indicating tsunami impact. ArcGIS 3D Analyst was used to model the terrain surface in three dimensions based on point features collected in the field with a Leica theodolite and a Trimble GPS. The correlation of potential tsunami deposits and their relation to cultural or archeological features was also investigated. Franziska Whelan University of Bamberg, Germany Dept. of Physical Geography and Landscape Studies c/o CMR 415 Box 3334 APO , AE 09114 US Phone: +49-9241-808545 E-mail: franziska.whelan@ggeo.uni-bamberg.de |
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