A Robust SAR Speckle Tracking Workflow for Measuring and Interpreting the 3D Surface Displacement of Landslides
| العنوان: | A Robust SAR Speckle Tracking Workflow for Measuring and Interpreting the 3D Surface Displacement of Landslides |
|---|---|
| المؤلفون: | John J. Clague, Davide Donati, Jeanine Engelbrecht, Bernhard Rabus, Mirko Francioni, Doug Stead |
| المساهمون: | Donati D., Rabus B., Engelbrecht J., Stead D., Clague J., Francioni M. |
| المصدر: | Remote Sensing, Vol 13, Iss 3048, p 3048 (2021) Remote Sensing; Volume 13; Issue 15; Pages: 3048 |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Synthetic aperture radar, 010504 meteorology & atmospheric sciences, Laser scanning, Lineament, Science, 0211 other engineering and technologies, Magnitude (mathematics), 02 engineering and technology, 01 natural sciences, Displacement (vector), Speckle pattern, SAR, speckle tracking, airborne laser scanning, GIS, landslides, Fels landslide, Slumping, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences, Remote sensing, Speckle tracking, Airborne laser scanning, Landslide, 13. Climate action, General Earth and Planetary Sciences, Geology |
| الوصف: | We present a workflow for investigating large, slow-moving landslides which combines the synthetic aperture radar (SAR) technique, GIS post-processing, and airborne laser scanning (ALS), and apply it to Fels landslide in Alaska, US. First, we exploit a speckle tracking (ST) approach to derive the easting, northing, and vertical components of the displacement vectors across the rock slope for two five-year windows, 2010–2015 and 2015–2020. Then, we perform post-processing in a GIS environment to derive displacement magnitude, trend, and plunge maps of the landslide area. Finally, we compare the ST-derived displacement data with structural lineament maps and profiles extracted from the ALS dataset. Relying on remotely sensed data, we estimate that the thickness of the slide mass is more than 100 m and displacements occur through a combination of slumping at the toe and planar sliding in the central and upper slope. Our approach provides information and interpretations that can assist in optimizing and planning fieldwork activities and site investigations at landslides in remote locations. |
| وصف الملف: | ELETTRONICO; application/pdf |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12423a8519e971cac8f7850e2782738eTest https://hdl.handle.net/11576/2690478Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....12423a8519e971cac8f7850e2782738e |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |