دورية أكاديمية
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 |
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| المؤلفون: | Davide Donati, Bernhard Rabus, Jeanine Engelbrecht, Doug Stead, John Clague, Mirko Francioni |
| المصدر: | Remote Sensing, Vol 13, Iss 15, p 3048 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | SAR, speckle tracking, airborne laser scanning, GIS, landslides, Fels landslide, Science |
| 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 13153048 2072-4292 |
| العلاقة: | https://www.mdpi.com/2072-4292/13/15/3048Test; https://doaj.org/toc/2072-4292Test |
| DOI: | 10.3390/rs13153048 |
| الوصول الحر: | https://doaj.org/article/b538c98b5cb042318dd5f423a1a3243cTest |
| رقم الانضمام: | edsdoj.b538c98b5cb042318dd5f423a1a3243c |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 13153048 20724292 |
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| DOI: | 10.3390/rs13153048 |