基于MODTRAN模型对高分五号卫星断层逸出气体探测能力的辐射模拟

地震 ›› 2017, Vol. 37 ›› Issue (2): 32-46.

基于MODTRAN模型对高分五号卫星断层逸出气体探测能力的辐射模拟

孙珂^1,2,单新建¹,申旭辉³,孙林⁴

1.地震动力学国家重点实验室, 中国地震局地质研究所, 北京 100029;
2.中国地震局地震预测研究所, 北京 100036;
3.中国地震局地壳应力研究所, 北京 100029;
4.山东科技大学测绘科学与工程学院, 山东青岛 266590

收稿日期:2016-08-05 出版日期:2017-04-20 发布日期:2019-08-14
通讯作者: 单新建, 研究员。 E-mail: xjshan@163.com。
作者简介:孙珂(1981-), 男, 江苏宿迁人, 副研究员, 主要从事空间技术地震应用研究。
基金资助:
国家自然科学基金(41204038)和国家高分辨对地观测系统重大专项(31-Y30B09-9001-13/15-11)联合资助

Radiation Simulation of Detection Abilities for Fault Escaping Gas based on the High-resolution Fifth Satellite

SUN Ke^1,2,SHAN Xin-jian¹,SHEN Xu-hui³,SUN Lin⁴

1.State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, Beijing 100029, China;
2.Institute of Earthquake Science, CEA, Beijing 100036, China;
3.Institute of Crustal Dynamics, CEA, Beijing 100085, China;
4.Geomatics College, Shandong University of Science and Technology, Qingdao 266590, China

Received:2016-08-05 Online:2017-04-20 Published:2019-08-14

摘要/Abstract

摘要： 地下流体监测数据和地表断层调查都显示构造活动强烈期和大地震前后活动断裂带会伴有大量气体逸出。中国即将发射的高分五号(GF-5)卫星搭载的大气环境红外甚高光谱分辨率探测仪及全谱段光谱成像仪两个传感器, 主要以大气气体的探测为应用目标。本文基于两个传感器的参数设置, 使用大气辐射传输模型, 对断层逸出气体中的水汽、 CH₄和CO₂三种气体在大气中的含量变化对卫星传感器的辐射影响进行了仿真模拟, 分析了两个传感器对水汽、 CH₄和CO₂气体异常的探测能力。结果表明, GF-5卫星两个红外传感器特定的光谱通道对大气水汽、 CH₄和CO₂气体异常变化均有不同程度的敏感性, 可以期待发展具有较高精度的相关气体遥感反演模型, 用于地震的监测及预测。

关键词: 断层逸出气体, 高分五号卫星, 辐射模拟, 探测能力

Abstract: Monitoring data of underground fluid and the surface fault survey show that the fault zone will be accompanied by a large number of gas evolutions around tectonic activity and strong earthquake period. China’s High-resolution fifth satellite (GF-5) will be launched, and it includes high spectral resolution infrared atmospheric environment and full spectrum spectral imager detectors. Main application object is atmospheric gas detection. In this paper, atmospheric radiation transfer model was used to simulate the radiation effect of content vary of water vapor, CH₄ and CO₂ based on the parameter setting of two sensors. Gas anomaly detection ability from fault was analyzed by remote sensing. The results show that the GF-5 two satellite infrared sensors using their specific spectral channels can effectively detect abnormal changes of atmospheric water vapor, CH₄ and CO₂, and the satellite has a good prospect in earthquake monitoring and prediction.

Key words: Radiation simulating, Detection ability, GF-5 satellite, Fault escaping gas

中图分类号:

P315.7

孙珂,单新建,申旭辉,孙林. 基于MODTRAN模型对高分五号卫星断层逸出气体探测能力的辐射模拟[J]. 地震, 2017, 37(2): 32-46.

SUN Ke,SHAN Xin-jian,SHEN Xu-hui,SUN Lin. Radiation Simulation of Detection Abilities for Fault Escaping Gas based on the High-resolution Fifth Satellite[J]. EARTHQUAKE, 2017, 37(2): 32-46.

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