Hello and welcome again,
This post is dedicated to this weeks particular application in GIS which continues last week theme of disaster response. This weeks focus area was on the Great East Japan Earthquake (GEJE) and tsunami in March 2011 which crippled the Fukushima Daiichi nuclear power plant. Radiation evacuation and danger zones based on tsunami run up are explored in the map below. The data for the project was provided by UWF and stems from many sources including USGS, UNITAR, geocommons.com, Land Processes Distributed Active Archive Center. This map is complied completely in ArcMAP. Some of the main objects being explored are below.
The center piece of this map is the radiation danger areas highlighted by the centrally placed multi-colored rings. These were one of the simpler aspects of the map to create. They were done by adding multiple buffer rings to the Fukushima Nuclear plant, cutting them to just the inland area and color coding them according to severity, seeing the most severe areas closer to the plant. the other significant features such as the closed cities were then identified and represented with the population impact by city.
The side map, highlighting the inundation or runup danger areas on the right side features where tsunami runup washed inland and the effected elevations. This area's creation was much more involved. It revoled around several Digital Elevation Models (DEMs) which were analyzed up to 10 Km inland for hazard areas. The DEMs were evaluated for elevation and proximity to the coast line in three zones as listed. These were then transformed from Raster features into polygon vector feature classes and then symbolized similarly to the Radiation evacuations zones. The key to this in depth process was that rather than use each tool three separate times, with multiple tools, the process was automated using ArcMAPS ModelBuilder. This is a visual programming tool allows you to build a model that executes many tools with many variables in visual sequence to automate several product layers creation near simultaneously saving much time. All in all another excellent example of how to use GIS in disaster situations. Thank you.
This post is dedicated to this weeks particular application in GIS which continues last week theme of disaster response. This weeks focus area was on the Great East Japan Earthquake (GEJE) and tsunami in March 2011 which crippled the Fukushima Daiichi nuclear power plant. Radiation evacuation and danger zones based on tsunami run up are explored in the map below. The data for the project was provided by UWF and stems from many sources including USGS, UNITAR, geocommons.com, Land Processes Distributed Active Archive Center. This map is complied completely in ArcMAP. Some of the main objects being explored are below.
- Map the radiation evacuation zones surrounding the Fukushima-Daiichi Nuclear Power Plant using the multiple ring buffer tool.
- Analyze runup on Fukushima coast 10 km inland for three zones using conditional raster analysis.
- Intersect roads, nuclear power plants and cities with runup results to aid in evacuation decisions and plans.
- Determine the at-risk population locations within each of those zones by creating GIS queries and selection operations.
- Create a VB expression to label features by two fields from attribute data
- Utilize GIS tools and ModelBuilder to automate the process of tsunami hazard evacuation zone mapping.
- Summarize analysis results and related findings utilizing tables.
The center piece of this map is the radiation danger areas highlighted by the centrally placed multi-colored rings. These were one of the simpler aspects of the map to create. They were done by adding multiple buffer rings to the Fukushima Nuclear plant, cutting them to just the inland area and color coding them according to severity, seeing the most severe areas closer to the plant. the other significant features such as the closed cities were then identified and represented with the population impact by city.
The side map, highlighting the inundation or runup danger areas on the right side features where tsunami runup washed inland and the effected elevations. This area's creation was much more involved. It revoled around several Digital Elevation Models (DEMs) which were analyzed up to 10 Km inland for hazard areas. The DEMs were evaluated for elevation and proximity to the coast line in three zones as listed. These were then transformed from Raster features into polygon vector feature classes and then symbolized similarly to the Radiation evacuations zones. The key to this in depth process was that rather than use each tool three separate times, with multiple tools, the process was automated using ArcMAPS ModelBuilder. This is a visual programming tool allows you to build a model that executes many tools with many variables in visual sequence to automate several product layers creation near simultaneously saving much time. All in all another excellent example of how to use GIS in disaster situations. Thank you.
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