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.
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.
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.
Citation: 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.

InSAR大气水汽改正模型的比较应用研究

Comparison of Atmospheric Water Vapour Correction Models for InSAR Measurements

  • 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。

     

    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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