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題名 Error-Regulated Multi-Pass DInSAR Analysis for Landslide Risk Assessment
作者 Kim, Jung Rack
Yun, HyeWon
Van Gasselt, Stephan
范噶色
Choi, YunSoo
貢獻者 地政系
日期 2018-04
上傳時間 9-Nov-2018 15:03:48 (UTC+8)
摘要 Landslide risk assessment based on Differential Interferometric SAR analyses (DInSAR) is associated with a number of error effects. We here approach the problem of assessing landslide risks over mountainous areas, where DInSAR observations are often influenced by orographic effects and inaccurate base topographies by employing a dedicated error compensation. In order to obtain accurate information on surface deformation, we apply corrections for DInSAR interferograms using high-resolution base topography and water vapor information obtained from a satellite radiometer. We observe that the corrected DInSAR output is in accordance with the environmental context as inferred by geological and geomorphological settings. It is feasible to better quantify landslide monitoring schemes whenever high- accuracy atmospheric error maps and a methodology to effectively compensate for external errors in DInSAR interferograms are available. The approach in this study can be further upgraded for future SAR- based assessments and various error correction approaches for even more precise landslide risk assessments.
關聯 PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 84(4), 189-202
資料類型 article
DOI http://dx.doi.org/10.14358/PERS.84.4.189
dc.contributor 地政系
dc.creator (作者) Kim, Jung Rack
dc.creator (作者) Yun, HyeWon
dc.creator (作者) Van Gasselt, Stephan
dc.creator (作者) 范噶色
dc.creator (作者) Choi, YunSoo
dc.date (日期) 2018-04
dc.date.accessioned 9-Nov-2018 15:03:48 (UTC+8)-
dc.date.available 9-Nov-2018 15:03:48 (UTC+8)-
dc.date.issued (上傳時間) 9-Nov-2018 15:03:48 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/120859-
dc.description.abstract (摘要) Landslide risk assessment based on Differential Interferometric SAR analyses (DInSAR) is associated with a number of error effects. We here approach the problem of assessing landslide risks over mountainous areas, where DInSAR observations are often influenced by orographic effects and inaccurate base topographies by employing a dedicated error compensation. In order to obtain accurate information on surface deformation, we apply corrections for DInSAR interferograms using high-resolution base topography and water vapor information obtained from a satellite radiometer. We observe that the corrected DInSAR output is in accordance with the environmental context as inferred by geological and geomorphological settings. It is feasible to better quantify landslide monitoring schemes whenever high- accuracy atmospheric error maps and a methodology to effectively compensate for external errors in DInSAR interferograms are available. The approach in this study can be further upgraded for future SAR- based assessments and various error correction approaches for even more precise landslide risk assessments.en_US
dc.format.extent 145 bytes-
dc.format.extent 101 bytes-
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dc.relation (關聯) PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 84(4), 189-202
dc.title (題名) Error-Regulated Multi-Pass DInSAR Analysis for Landslide Risk Assessmenten_US
dc.type (資料類型) article
dc.identifier.doi (DOI) 10.14358/PERS.84.4.189
dc.doi.uri (DOI) http://dx.doi.org/10.14358/PERS.84.4.189