地震被害ポテンシャル推定のためのDMSP夜間可視画像を用いた都市光分布の測定論モデル作成手法の提案 : 人口推定への適用

概要

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In this paper, we propose a method to estimate the distribution of Human Activity as the Earthquake Damage Potential using DMSP/OLS (Defense Meteorological Satellite Program/ Optical Linescan System) night-time imagery which capture city lights reflecting extent of human activity, incidentally. Since original task of DMSP satellites is to monitor cloud distribution clearly, intensity and location of city light captured in night-time imagery are affected by various factors such as gain control along moon phase, clouds, lightening and noises. We propose a method to extract stable city light statistically using time-series data of night-time imagery and examine how the extracted city lights correspond to distribution of population as one of the damage potentials.