Advances in Earth Science ›› 2011, Vol. 26 ›› Issue (7): 787-794. doi: 10.11867/j.issn.1001-8166.2011.07.0787

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Remote Sensing Signals of Atmospheric Physics and Chemistry Related to 2010 Yushu  Ms  7.1 Earthquake

Cui Yueju 1, Du Jianguo 1, Chen Zhi 1, Li Jing 1,2, Xie Chao 1, Zhou Xiaocheng 1, Liu Lei 1   

  1. 1.Institute of Earthquake Science, China Earthquake Administration, Beijing100036, China;
    2.Institute of Disaster Prevention, Yanjiao065201, China
  • Received:2011-01-12 Revised:2011-04-27 Online:2011-07-10 Published:2011-07-10

Cui Yueju, Du Jianguo, Chen Zhi, Li Jing, Xie Chao, Zhou Xiaochen,Liu Lei. Remote Sensing Signals of Atmospheric Physics and Chemistry Related to 2010 Yushu  Ms  7.1 Earthquake[J]. Advances in Earth Science, 2011, 26(7): 787-794.

The temporal and spatial variations of surface temperature, vapor total column, CO total column and CH4 volume mixing ratio were retrieved by high-resolution satellite remote sensing data. The relationships between these variations and 14 April 2010 Yushu  Ms 7.1 earthquake in Qinghai Province, Northwestern China and seismic ruptures were discussed. Brightness and surface temperature retrieved using MODIS L1B data associated with Yushu Earthquake shows that the values of brightness and surface temperature were higher along the NW fault zones than in the un-faulted areas before the main shock; the higher values of surface temperature were larger than the corresponding daily mean values of ten years before, which is similar to the phenomena that measured values of air temperature before the Yushu Earthquake were higher than the corresponding daily average of last ten years. Vapor total column, CO total column and CH4 volume mixing ratio retrieved using AIRS shows that the values of vapor total column were higher than the average of last two years after the main event and CO total column also increased before and after the earthquake. Our results indicated that the variations associated with large earthquake maybe caused by the movement of deeper-earth material and degassing along faults during earthquake generation, which can be applied into monitoring and prediction of  earthquake.

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