| InSAR大气水汽改正模型的比较应用研究 |
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| 引用本文： | 鄢子平, 李振洪. InSAR大气水汽改正模型的比较应用研究[J]. 武汉大学学报 ( 信息科学版), 2008, 33(7): 723-726. |
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| 作者姓名： | 鄢子平 李振洪 |
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| 作者单位： | 1武汉大学期刊社,武汉市珞喻路129号430079;2伦敦学院大学测绘工程系,英国伦敦,WC1E6BT |
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| 摘 要： | 对基于GPS数据的大气水汽扰动模型(GPS topography-dependent turbulence model,GTTM)和GPS/MODIS集成的大气水汽改正模型进行了比较研究。试验证明,GTTM模型和GPS/MODIS集成模型的改正方法都可以大大降低大气水汽对InSAR测量地面形变量精度的影响。另外,当两种模型都用于改正InSAR观测值时,它们具有很强的互补性。
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| 关 键 词： | InSAR GTTM MODIS 大气改正 |
| 收稿时间： | 2008-05-18 |
| 修稿时间： | 2008-05-18 |
Comparison of Atmospheric Water Vapour Correction Models for InSAR Measurements |
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| YAN Ziping, LI Zhenghong. Comparison of Atmospheric Water Vapour Correction Models for InSAR Measurements[J]. Geomatics and Information Science of Wuhan University, 2008, 33(7): 723-726. |
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| Authors: | YAN Ziping LI Zhenghong |
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| Affiliation: | 1Journals Press of Wuhan University,129 Luoyu Road,Wuhan 430079,China;2Department of Geomatic Engineering,University College London,Gower Street,London WC1E 6BT,United Kingdom |
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| Abstract: | A comparison between GPS topography-dependent turbulence model(GTTM) and GPS/MODIS integrated water vapour correction model is performed.The experimental results show that both correction models are able to improve InSAR derived deformation signals from 10 mm to 5 mm after correction by reducing water vapour effects on InSAR measurements.It can also be concluded that the GTTM and GPS/MODIS integrated models are complementary when correcting InSAR measurements. |
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| Keywords: | InSAR GTTM MODIS atmospheric correction |
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