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https://doi.org/10.5194/nhess-2020-112
https://doi.org/10.5194/nhess-2020-112
17 Apr 2020
 | 17 Apr 2020
Status: this preprint has been withdrawn by the authors.

Multi-temporal landslide activity investigation by spaceborne SAR interferometry: Polish Carpathians case study

Kamila Pawluszek-Filipiak, Mahdi Motagh, and Andrzej Borkowski

Abstract. The main goal of this research is the activity state verification of existing landslide inventory maps using Persistent Scatterer Interferometry (PSI). The study was conducted in Małopolskie municipality, a rural setting with a sparse urbanization in Polish Flysch Carpathians. PSI have been applied using Synthetic Aperture Radar (SAR) data from ALOS PALSAR, and Sentinel 1A/B from different acquisition geometry (ascending and descending orbit) to increase PS coverage and overcome geometric effects due to layover and shadowing. The Line-Of-Sight PSI measurements were projected to the steepest slope, which allows to homogenize the results from diverse acquisition modes and to compare displacement velocities with different slope orientations. Additionally, landslide intensity (motion rate) and expected damages maps were generated and verified during filed investigations. High correlation between PSI results and in-situ damage observations has been confirmed. Activity state and landslide-related expected damage map have been confirmed for 43 out of a total of 50 landslides investigated in the field. The short temporal baseline provided by Sentinel satellite 1A/B data allows increasing of the PS density significantly. The study substantiates usefulness of SAR based landslide activity monitoring for land use and land development, even in rural areas.

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Kamila Pawluszek-Filipiak, Mahdi Motagh, and Andrzej Borkowski

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Kamila Pawluszek-Filipiak, Mahdi Motagh, and Andrzej Borkowski
Kamila Pawluszek-Filipiak, Mahdi Motagh, and Andrzej Borkowski

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