Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B1, 595-599, 2016
03 Jun 2016
Shuhei Hatake1, Yuki Kohori1, and Yasushi Watanabe2 1Asia Air Survey, Geospatial Information Division , 2150004 Kawawaki, Kanagawa, Japan
2Arc Geo Support, Osaka branch, Chuou-ku, Osaka, Japan
Keywords: Coastal Mapping, Tsunami, MMS, Interferometry echo sounder, continuous topography Abstract. In March 2011, Eastern Japan suffered serious damage of Tsunami caused by a massive earthquake. In 2012, Ministry of Land, Infrastructure and Transport published “Guideline of setting assumed areas of inundation by Tsunami” to establish the conditions of topography data used for simulation of Tsunami. In this guideline, the elevation data prepared by Geographical Survey Institute of Japan and 2m/5m/10m mesh data of NSDI are adopted for land area, while 500m mesh data of Hydrographic and Oceanographic Department of Japan Coast Guard and sea charts are adopted for water area. These data, however, do not have continuity between land area and water area. Therefore, in order to study the possibility of providing information for coastal disaster prevention, we have developed an efficient method to acquire continuous topography over land and water including tidal zone. Land area data are collected by Mobile Mapping System (MMS) and water area depth data are collected by interferometry echo sounder (C3D), and both data are simultaneously acquired on a same boat. Elaborate point cloud data of 1m or smaller are expected to be used for realistic simulation of Tsunami waves going upstream around shoreline. Tests were made in Tokyo Bay (in 2014) and Osaka Bay (in 2015). The purpose the test in Osaka Bay is to make coastal map for disaster prevention as a countermeasure for predicted Nankai massive earthquake. In addition to Tsunami simulation, the continuous data covering land and marine areas are expected to be used effectively for maintenance and repair of aged port and river facilities, maintenance and investigation of dykes, and ecosystem preservation.
Conference paper (PDF, 1443 KB)

Citation: Hatake, S., Kohori, Y., and Watanabe, Y.: DISASTER PREVENTION COASTAL MAP PRODUCTION BY MMS & C3D, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B1, 595-599, doi:10.5194/isprs-archives-XLI-B1-595-2016, 2016.

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