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Proceedings Paper

Time series evaluation of re-urbanization in disaster area of large-scale tsunami in Japan by high-resolution satellite remote sensing
Author(s): Hideki Hashiba; Masashi Sonobe
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Paper Abstract

The 2011 tsunami caused by the Tohoku Region Pacific Offshore Earthquake caused severe damage. In particular, the city of Rikuzentakata, Iwate Prefecture, a coastal city in the Tohoku district, sustained enormous damage, and long-term revitalization process is in progress. For this disaster, several satellite observations and remote disaster investigations by aerial photography were conducted, and various damage situations were reported. Although there are many interpretations of images, few continuously evaluate the recovery process after the disaster. Here, land cover was investigated using image information observed time-sequentially by high-resolution satellite remote sensing. In addition, the re-urbanization process of the disaster area was evaluated from evaluation index values obtained from several types of filtering analysis. The distribution of debris caused by the tsunami, the change in the characteristics of the bare ground due to debris removal, and the characteristics of the land cover shape were quantitatively evaluated from the regularity and identity of the land cover distribution. In addition, the early stages of re-urbanization, which is still in progress, were effectively evaluated.

Paper Details

Date Published: 9 October 2018
PDF: 9 pages
Proc. SPIE 10790, Earth Resources and Environmental Remote Sensing/GIS Applications IX, 107900O (9 October 2018); doi: 10.1117/12.2325309
Show Author Affiliations
Hideki Hashiba, Nihon Univ. (Japan)
Masashi Sonobe, Nihon Univ. (Japan)

Published in SPIE Proceedings Vol. 10790:
Earth Resources and Environmental Remote Sensing/GIS Applications IX
Ulrich Michel; Karsten Schulz, Editor(s)

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