This week we examined Tsunamis. Tsunamis are basically a series of waves that occur as a result of a large water displacement. The displacement can be caused by an underwater earthquake or landslide. The water displacement moves like dropping a pebble in a body of water, ripples moving away from the site of displacement. Runup is the term utilized for the waves pushing up on land and through rivers and streams. Disaster response to this type of even includes assessing hazard situations like contaminations and fires, property damage including public and private, people evacuations, sites for evacuees, equipping those sites with water, food, and medicine. GIS can be utilized to show extent of damage, potential sites for evacuees, what services are needed in what area and how to get them there.
This week in lab we worked with information relevant to response and recovery efforts of the Japan Tsunami. Set up a geodatabase with file geodatabase to help organize data by category utilizing feature. Mosaicked raster and built raster attribute data. Utilized the multi-ring buffer and clip tool to create evacuation zones for the Nuclear Power Plant. Analyze runup on the coast and created 3 evacuation zones. Created an expression to label features by two fields (name and population of cities). Utilize ModelBuilding with elevation data to automate the evacuation zone mapping.
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