Susan E. Hough Brady R. Cox Ellen M. Rathje Jeff Bachhuber Ranon Dulberg David Hulslander Lisa Christiansen Michael J. Abrams Alan Yong 2011 We report about a preliminary study to evaluate the use of semi-automated imaging analysis of remotely-sensed DEM and field geophysical measurements to develop a seismic-zonation map of Port-au-Prince, Haiti. For in situ data, V_S30 values are derived from the MASW technique deployed in and around the city. For satellite imagery, we use an ASTER GDEM of Hispaniola. We apply both pixel- and object-based imaging methods on the ASTER GDEM to explore local topography (absolute elevation values) and classify terrain types such as mountains, alluvial fans and basins/near-shore regions. We assign NEHRP seismic site class ranges based on available V_S30 values. A comparison of results from imagery-based methods to results from traditional geologic-based approaches reveals good overall correspondence. We conclude that image analysis of RS data provides reliable first-order site characterization results in the absence of local data and can be useful to refine detailed site maps with sparse local data. application/pdf 10.14358/PERS.77.9.909 en The American Society for Photogrammetry & Remote Sensing Seismic zonation of Port-Au-Prince using pixel- and object-based imaging analysis methods on ASTER GDEM article