Using optical and synthetic aperture radar remote sensing technology to detect earthquake damage following the 1999 Marmara, Turkey earthquake

摘要

For several years, a Multidisciplinary Center for Earthquake Engineering Research (MCEER) team has been investigating the use of remote sensing technology for post-earthquake damage detection and emergency response. This research has focused on various aspects of damage detection including: (1) the basic distinction between damage, versus non-damage on a regional basis; (2) the quantification of various damage states on a city wide basis; and (3) the assessment of damage sustained by specific buildings This paper introduces methodological procedures for characterizing urban building damage using optical SPOT4 and ERS Synthetic Aperture Radar (SAR) remote sensing imagery Preliminary damage detection algorithms are introduced for the 1999 Marmara earthquake in Turkey, demonstrating the ability of advanced technologies to identify urban damage, and thereby determine the scale of a disaster A quantitative assessment is made of the magnitude and extent of building collapse within the city of Golcuk, using 'damage profiles' The evaluation of damage on a per-building basis requires higher resolution imagery, which was unavailable for the Marmara event This topic is instead being addressed through an ongoing study of Quickbird imagery for the 2003 Boumerdes, Algeria earthquake The significance of these findings is far-reaching In terms of benefits to emergency responders, damage profiles generated from remote sensing coverage promise an accelerated rate of response, while guiding the scale of response efforts and resource allocation They further provide critical information to international aid agencies, supporting logistical planning and deployment of equipment.