| 顾及空间相关性的遥感震害指数与地震烈度回归模型研究 |
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| 引用本文： | 李芋均,郭红梅,赵真,张莹.顾及空间相关性的遥感震害指数与地震烈度回归模型研究[J].四川地震,2020(2):9-14. |
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| 作者姓名： | 李芋均 郭红梅 赵真 张莹 |
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| 作者单位： | 西南交通大学地球科学与环境工程学院,四川 成都 611157;四川省地震局,四川 成都 610041 |
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| 基金项目： | 国家重点研发计划;四川地震科技创新团队专项 |
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| 摘 要： | 传统的遥感烈度评估方法,采用普通最小二乘法来建立遥感震害指数与地面等效震害指数之间的关系,再经过地面等效震害指数转化为地震烈度,忽略了数据之间的空间相关性。为使结果更加准确,本研究通过建立顾及空间相关性的遥感震害指数与地震烈度的回归关系,并以“四川芦山7.0级地震”为例进行实验验证,结果证实顾及空间相关性的回归模型的稳定性和准确性优于普通线性回归模型。
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| 关 键 词： | 遥感 地震烈度 空间相关性 回归模型 |
Research on Regression Model of Remote Sensing Seismic Damage Index and Seismic Intensity Considering Spatial Correlation |
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| LI Yujun,GUO Hongmei,ZHAO Zheng,ZHANG Ying.Research on Regression Model of Remote Sensing Seismic Damage Index and Seismic Intensity Considering Spatial Correlation[J].Earthquake Research in Sichuan,2020(2):9-14. |
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| Authors: | LI Yujun GUO Hongmei ZHAO Zheng ZHANG Ying |
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| Institution: | (Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Sichuan Chengdu 611756,China;Sichuan Earthquake Administration,Sichuan Chengdu 610041,China) |
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| Abstract: | In the traditional intensity evaluation method with remote sensing,the general least square method is used to establish the relationship between the remote sensing seismic damage index and the ground equivalent seismic damage index,and then the ground equivalent seismic damage index is transformed into the seismic intensity,the spatial correlation between the data is ignored.To get accurate data,the regression relationship between the remote sensing seismic damage index and the seismic intensity is established,taking the"Lushan M 7.0 earthquake in Sichuan province"as an example,the results show that the stability and accuracy of the regression model considering spatial correlation are better than that of the general regression model. |
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| Keywords: | remote sensing seismic intensity spatial correlation regression model |
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