Observation of tsunami damage to marine farm on coast in Tohoku district caused by the 2010 chili earthquake using ALOS satellite

H. Watanabe, D. Kunii, Chinatsu Yonezawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The tsunami caused by Chili earthquake occurred on February 27, 2010. The tsunami reached Japan on February 28, 2010. Main damaged area was Pacific Ocean coast region in Tohoku district. Total amount of fishery damage is estimated at 70 million dollars by Ministry of Agriculture, Forestry and Fisheries of Japan. In this area, there are a lot of calm bays along rias coast. Oyster, seaweed, scallop, ascidia and other seafoods are richly cultivated. In this study, we observed tsunami damages using satellite remote sensing data, ALOS/PRISM and AVNIR-2 images. ALOS/PRISM and AVNIR-2 images obtained on February, March, and April 2010 are used for the analysis. As a result, ALOS data set showed tsunami damage to culture facilities. Moving of seafood beds was observed in Hirota bay, one of the typical bays for marine farm. The seafood beds moved to inner bay due to tsunami. Moving of seafood beds is related to characteristics of tsunami. We tried to classify only the marine farm area, to observe the marine farm quantitatively. However, it was difficult to calculate the damage area of the marine farm by an unsupervised classification. In the case of optical sensor on ALOS satellite, it was possible to observe the tsunami damage to the marine farm after the disaster.

Original languageEnglish
Title of host publication31st Asian Conference on Remote Sensing 2010, ACRS 2010
Pages757-762
Number of pages6
Publication statusPublished - 2010 Dec 1
Event31st Asian Conference on Remote Sensing 2010, ACRS 2010 - Hanoi, Viet Nam
Duration: 2010 Nov 12010 Nov 5

Publication series

Name31st Asian Conference on Remote Sensing 2010, ACRS 2010
Volume1

Other

Other31st Asian Conference on Remote Sensing 2010, ACRS 2010
CountryViet Nam
CityHanoi
Period10/11/110/11/5

Keywords

  • ALOS
  • Chili earthquake
  • Marine farm
  • Pan-sharpen
  • Rias coast
  • Tsunami

ASJC Scopus subject areas

  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Observation of tsunami damage to marine farm on coast in Tohoku district caused by the 2010 chili earthquake using ALOS satellite'. Together they form a unique fingerprint.

  • Cite this

    Watanabe, H., Kunii, D., & Yonezawa, C. (2010). Observation of tsunami damage to marine farm on coast in Tohoku district caused by the 2010 chili earthquake using ALOS satellite. In 31st Asian Conference on Remote Sensing 2010, ACRS 2010 (pp. 757-762). (31st Asian Conference on Remote Sensing 2010, ACRS 2010; Vol. 1).