Department of Hydrogeology and Bureau of Applied Geoscientific Remote Sensing (BAGF)
ABSTRACT
Based on LANDSAT ETM and Digital Elevation Model (DEM) data derived by the Shuttle Radar Topography Mission (SRTM, 2000) of the coastal areas of Northern Venezuela were investigated in order to detect traces of earlier tsunami events. Digital image processing methods used to enhance LANDSAT ETM imageries and to produce morphometric maps (such as hillshade, slope, minimum and maximum curvature maps) based on the SRTM DEM data contribute to the detection of morphologic traces that might be related to catastrophic tsunami events. These maps combined with various geodata such as seismotectonic data in a GIS environment allow the delineation of coastal regions with potential tsunami risk. The LANDSAT ETM imageries merged with digitally processed and enhanced SRTM data clearly indicate areas that might be prone by flooding in case of catastrophic tsunami events.
2008 7 Mai
TSUNAMI HAZARD IN NORTHERN VENEZUELA
Beitrag verlinken: Trackbacklink | Tags: Digital Elevation Model, Digital image, Katastrophenschutz, LANDSAT
Dieser Beitrag wurde geschrieben am Mittwoch, 7. Mai 2008 und wurde abgelegt unter "Katastrophenschutz". Du kannst die Kommentare verfolgen mit RSS 2.0. Du kannst hier einen Kommentar hinterlassen, oder einen Trackback senden von deiner eigenen Seite.
Noch keine Kommentare.
Kommentar hinterlassen
Du musst angemeldet sein, um einen Kommentar zu hinterlassen. Hier anmelden