| 利用NOAA_16/FY_1C和ASAR数据纠正大气水汽对重轨星载D_INSAR的影响 |
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| 引用本文： | 谌华,单新建,张云华,李建华,屈春燕.利用NOAA_16/FY_1C和ASAR数据纠正大气水汽对重轨星载D_INSAR的影响[J].地球物理学报,2007,50(3):707-713. |
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| 作者姓名： | 谌华 单新建 张云华 李建华 屈春燕 |
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| 作者单位： | 1.国家八六三计划微波遥感技术实验室，中国科学院空间科学与应用研究中心，北京100080 2 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 |
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| 摘 要： | 大气水汽影响一直是造成重轨星载合成孔径雷达差分干涉测量监测结果不确定性的一个重要因素.本文以地表形变速率稳定的延怀盆地为试验区，利用ASAR数据得到该区域的差分干涉处理结果，利用与ASAR数据获取时间相近的NOAA_16/FY_1C数据对该区域的大气水汽含量进行了反演.通过这些结果，对差分干涉处理结果中大气水汽的影响进行了去除.去除大气水汽影响后得到的地表形变结果与野外考察实测结果基本吻合，从而验证了该方法的可行性.
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| 关 键 词： | 重轨星载D_INSAR 水汽延迟 干涉条纹 水汽含量反演 水汽影响去除 |
| 文章编号： | 0001-5733（2007）03-0707-07 |
| 收稿时间： | 2006-9-15 |
| 修稿时间： | 2006-09-15 |
Correction of atmospheric water vapour effects on the repeat-pass spaceborne D-INSAR by using NOAA-16/FY-1C and ASAR data |
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| CHEN Hua,SHAN Xin-Jian,ZHANG Yun-Hua,LI Jian-Hua,QU Chun-Yan.Correction of atmospheric water vapour effects on the repeat-pass spaceborne D-INSAR by using NOAA-16/FY-1C and ASAR data[J].Chinese Journal of Geophysics,2007,50(3):707-713. |
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| Authors: | CHEN Hua SHAN Xin-Jian ZHANG Yun-Hua LI Jian-Hua QU Chun-Yan |
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| Institution: | 1.National Microwave Remote Sensing Lab, Center for Space Science & Applied Research, Chinese Academy of Sciences, Beijing 100080, China 2 State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China |
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| Abstract: | Atmospheric water vapour turbulences has been an important factor which causes confusion in the results obtained by repeat-pass spaceborne D-INSAR. We select the Yan-Huai basin as a test area and obtain the interferogram of this area by using ASAR data. At the same time, we make an inversion of the water vapor content by using NOAA-16/FY-1C data obtained at close time with ASAR data. After using these results to remove the water vapour effects, the obtained surface deformation coincides with the field surveying results in general. All these results validate the feasibility of this atmospheric correction method. |
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| Keywords: | Repeat-pass spaceborne D-INSAR Water vapour delay Interferometric fringe Inversion of the water vapor content Removal of the water vapour effects |
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