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首页> 外文会议>Asian conference on remote sensing >PRELIMINARY RESULTS OF POST-SEISMIC DISPLACEMENT OF 2011 Mw 6.8 TARLAY EARTHQUAKE, MYANMAR USING TIME-SERIES INSAR TECHNIQUES
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PRELIMINARY RESULTS OF POST-SEISMIC DISPLACEMENT OF 2011 Mw 6.8 TARLAY EARTHQUAKE, MYANMAR USING TIME-SERIES INSAR TECHNIQUES

机译：利用时间序列INSAR技术对缅甸2011年兆瓦6.8级地震的震后位移的初步结果

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摘要

The co-seismic motion of Mw = 6.8 Tarlay earthquake of March 24 th, 2011 in Myanmar can be detected by InSAR over the upper-northern part of Thailand. Of especially interest is Mae Chan fault in Chiang Rai province which is located approximately 50 kilometers from the epicenter. A previous study using 2-pass DInSAR with ALOS-PALSAR images for both ascending and descending orbits, reveals rupture of more than 20 kilometers with approximately 1.2 meters offset in left-lateral sense and the re-distribution of stress may promote failure on certain segments of Mae Chan fault. This study aims to monitoring the characteristics of post-seismic deformation of Tarlay earthquake with also attention on stress change on Mae Chan fault. The study area is covered with dense vegetation and accessing to the study area is very difficult, so InSAR time-series technique is an attractive technique to measure surface deformation. Radarsat-2 data acquired from June 2011 to May 2012 have been processed by PSInSAR and Small Baseline techniques. The initial results with mean LOS deformations reveal the potential of Radarsat-2 data to estimate the surface deformation which occurred around Mae Chan fault. Further study will be performed on longer time-series Radarsat-2 data and modeling of post-seismic motion.
机译：InSAR在泰国上北部地区可检测到2011年3月24日缅甸Mw = 6.8 Tarlay地震的同震运动。距震中约50公里的清莱府的湄陈断层尤其令人关注。先前的研究使用2遍DInSAR和ALOS-PALSAR图像对上升和下降轨道进行了研究，结果表明破裂超过20公里，左侧偏移约1.2米，应力的重新分布可能会导致某些段的破坏湄陈的错。本研究旨在监测塔莱地震的震后变形特征，同时关注湄赞断裂带的应力变化。研究区域被茂密的植被覆盖，进入研究区域非常困难，因此InSAR时间序列技术是测量表面变形的一种有吸引力的技术。 PSInSAR和Small Baseline技术已处理了2011年6月至2012年5月采集的Radarsat-2数据。具有平均LOS变形的初始结果揭示了Radarsat-2数据潜在的潜力，可以估算发生在美赞断裂附近的表面变形。进一步的研究将在更长的时间序列Radarsat-2数据和地震后运动建模中进行。

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