Rapid extent grasp of the disaster areas by The 2011 Off the Pacific Coast of Tohoku Earthquake through tsunami simulations and multiple satellite image analyses

Mukouyama, Sakae; Murashima, Yoichi; Kamagata, Noritoshi; Akamatsu, Yukio; Imai, Yasuhiko

doi:10.4287/jsprs.50.192

Cited by 1 publication

(1 citation statement)

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“…Vegetation has the property that strongly reflects the wavelengths in the near-infrared area. Using this property, we extract the areas of vegetation using the normalized difference vegetation index (NDVI), given by (5). Here, IR is the pixel value in the near infrared image, and R is the corresponding red value of the pixel in the color image.…”

Section: Extraction Of Areas Of Vegetationmentioning

confidence: 99%

Analysis of road damage after a large-scale earthquake using satellite images

Yamaguchi

Saji

2012

SPIE Proceedings

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We propose a method of using satellite images to analyze road conditions after a large-scale earthquake accompanied by a tsunami. Remote sensing using satellite images can be used to collect information over a wide area in a short time. Such information is particularly valuable for organizing relief efforts quickly and effectively after large-scale disasters such as the Great East Japan Earthquake on March 11, 2011. Although a large number of studies have focused on the extraction of damaged buildings and debris on roads, there have been few studies on the extraction of road areas flooded by a tsunami. Also, since the Great East Japan Earthquake, there has been increased concern about tsunami damage in addition to earthquake damage, meaning that a method of extracting both earthquake damage and tsunami damage is required. The purpose of this study is to analyze the safety of roads around a stricken area in detail to help support relief activities during times of disasters.

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Section: Extraction Of Areas Of Vegetationmentioning

confidence: 99%