Using a Mesoscale Meteorological Model to Reduce the Effect of Tropospheric Water Vapour from DInSAR Data: A Case Study for the Island of Tenerife, Canary Islands
Using a Mesoscale Meteorological Model to Reduce the Effect of Tropospheric Water Vapour from DInSAR Data: A Case Study for the Island of Tenerife, Canary Islands
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DOI：
10.1007/s00024-011-0401-4
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发表时间：
2012-08
影响因子：
2
通讯作者：
A. Eff-Darwich;J. C. Pérez;José Fernández;B. García-Lorenzo;Albano González;P. González
中科院分区：
文献类型：
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作者：
A. Eff-Darwich;J. C. Pérez;José Fernández;B. García-Lorenzo;Albano González;P. González
通过经典差分干涉SAR (DInSAR) 和先进DInSAR 技术对加那利群岛特内里费岛整个活火山岛进行了地面位移测量。然而，应该对特内里费岛对流层水汽对 DInSAR 的影响进行详细分析，以评估其影响，包括可能提高 DInSAR 变形信号精度的校正模型。与基于空间平台（例如 MODIS 和 MERIS）的水汽校正模型不同，我们提出了一种基于中尺度数值气象模型（特别是天气研究和预报（WRF）模型）的精确水汽估计的替代方法。将这种方法应用于特内里费岛的一组 DInSAR 观测结果显示出令人鼓舞的结果。
Measurements of ground displacement through classical Differential Interferometric SAR (DInSAR) and advanced DInSAR techniques have been carried out over the entire actively volcanic island of Tenerife, Canary Islands. However, a detailed analysis of the effect of tropospheric water vapour on DInSAR at Tenerife should be carried out to evaluate its influence, including correction models that might improve the accuracy of DInSAR derived deformation signals. Unlike water vapour correction models that are based on space platforms (e.g. MODIS and MERIS), we present an alternative approach that is based on precise water vapour estimations derived from mesoscale numerical meteorological models, in particular the Weather Research and Forecasting (WRF) model. The application of this approach to a set of DInSAR observations of the island of Tenerife shows encouraging results.