| 考虑高程信息的MERIS水汽插值及其在ASAR干涉图大气改正中的应用 |
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| 引用本文： | 周文斌,许文斌,李志伟,汪长城.考虑高程信息的MERIS水汽插值及其在ASAR干涉图大气改正中的应用[J].武汉大学学报(信息科学版),2012,37(8):963-966,1011,1012. |
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| 作者姓名： | 周文斌 许文斌 李志伟 汪长城 |
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| 作者单位： | 中南大学地球科学与信息物理学院,长沙市麓山南路932号,长沙410083 |
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| 基金项目： | 国家自然科学基金资助项目，国家教育部新世纪优秀人才支持计划资助项目，中央高校基本科研业务费专项资金资助项目，湖南省高校创新平台开放基金资助项目 |
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| 摘 要： | 提出了一种考虑高程信息的MERIS水汽插值方法。应用实例验证了该方法可以明显地削弱大气对干涉图的影响,并成功地探测出了美国洛杉矶地区的地表形变信号。研究结果表明,考虑高程信息的MERIS水汽插值法的改正精度优于常规的MERIS水汽插值改正法,改善程度平均达4.25%,有利于改正地形起伏大的地区的大气影响。
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| 关 键 词： | InSAR MERIS 大气改正 地表形变 |
Elevation-dependent MERIS Water Vapor Interpolation and Its Application to Atmospheric Correction on ASAR Interferogram |
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| ZHOU Wenbin,XU Wenbin,LI Zhiwei,WANG Changcheng.Elevation-dependent MERIS Water Vapor Interpolation and Its Application to Atmospheric Correction on ASAR Interferogram[J].Geomatics and Information Science of Wuhan University,2012,37(8):963-966,1011,1012. |
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| Authors: | ZHOU Wenbin XU Wenbin LI Zhiwei WANG Changcheng |
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| Affiliation: | 1(1 School of Geosciences and Info-Physics,Central South University,932 South Lushan Road,Changsha 410083,China) |
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| Abstract: | Based on the physical process of atmospheric signals,an algorithm has been developed to estimate the altitude-related MERIS water vapor and to correct the atmospheric effects on InSAR.The algorithm can significantly reduce the influence of atmospheric phase distortions on ASAR interferogram,and further explore the ground deformation and other geophysical signals.According to the experimental result,this altitude-related MERIS water vapor interpolation can reach 4.25% improvement averagely,relative to traditional MERIS integrated water vapor interpolation.Furthermore,this algorithm may provide an avenue for mitigate atmospheric effects in ASAR interferogram in mountainous areas,which appeals to a wide community of geophysicists. |
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| Keywords: | InSAR MERIS atmospheric correction ground deformation |
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