Early damaged area estimation system using DMSP-OLS night-time imagery

M. Kohiyama, H. Hayashi, N. Maki, M. Higashida, H. W. Kroehl, C. D. Elvidge, V. R. Hobson

研究成果: Article査読

65 被引用数 (Scopus)


The disaster information system, the Early Damaged Area Estimation System (EDES), was developed to estimate damaged areas of natural disaster using the night-time imagery of the Defense Meteorological Satellite Program Operational Linescan System (DMSP-OLS). The system employs two estimation methods to detect the city lights loss or reduction as possible impacted areas; one is the bi-temporal images (BTI) method and the other is the time-series images (TSI) method. Both methods are based on significance tests assuming that brightness of city lights fluctuates as normal random variables, and the BTI method is simplified by introducing the assumption that the standard deviation of city lights fluctuation is constant. The validity of the estimation method is discussed based on the result of the application to the 2001 Western India earthquake disaster. The estimation results identify the damaged areas distant from the epicentre fairly well, especially when using the TSI method. The system is designed to estimate the global urban damage and to provide geographic information through the Internet within 24 h after a severe disaster event. The information is expected to support the disaster response and relief activities of governments and non-governmental organizations.

ジャーナルInternational Journal of Remote Sensing
出版ステータスPublished - 2004 6月 10

ASJC Scopus subject areas

  • 地球惑星科学一般


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