DAMAGE DETECTION FROM HIGH-RESOLUTION SATELLITE IMAGES FOR THE 2003 BOUMERDES , ALGERIA EARTHQUAKE
DAMAGE DETECTION FROM HIGH-RESOLUTION SATELLITE IMAGES FOR THE 2003 BOUMERDES , ALGERIA EARTHQUAKE
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发表时间：
2002
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通讯作者：
F. Yamazaki;K. Kouchi;M. Matsuoka;M. Kohiyama;Nanae Muraoka
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作者：
F. Yamazaki;K. Kouchi;M. Matsuoka;M. Kohiyama;Nanae Muraoka
2003年5月21日，阿尔及利亚地中海沿岸地区发生6.8级强烈地震，布米尔德斯和泽穆里市受损最严重。QuickBird卫星在地震前后对这些地区进行了观测。基于这些图像，本文作者进行了视觉损伤检测的建筑物。仅使用事件后泛锐化图像，识别完全倒塌的建筑物、部分倒塌的建筑物和被碎片包围的建筑物。有些建筑物很难判断其受损程度，因此，也采用事前图像作为判断受损状况的参考。通过这次目视检查，根据损坏等级，布默尔德斯共有3 446座建筑物，泽穆里共有1 399座建筑物。还确定了两张事后图像中难民帐篷的位置。这些观测结果表明，高分辨率卫星图像可以为自然灾害后的应急管理提供非常有用的信息。
A strong earthquake of magnitude 6.8 struck the Mediterranean coast of Algeria on May 21, 2003 and the cities of Boumerdes and Zemmouri were most heavily damaged. QuickBird satellite observed these areas before and after the earthquake. Based on these images, the present authors performed visual damage detection of buildings. Using the post-event pan-sharpened image only, totally collapsed buildings, partially collapsed buildings, and buildings surrounded by debris were identified. Some buildings were difficult to judge their damage levels, and thus, the pre-event image was also employed as a reference to judge the damage status. By this visual inspection, a total 3,446 buildings were classified in Boumerdes and 1,399 buildings in Zemmouri based on their damage grades. The locations of refugee tents in the two post-event images were also identified. These observations indicate that high-resolution satellite images can provide quite useful information to emergency management after natural disasters.