2019
Comparing DInSAR and PSI Techniques Employed to Sentinel-1 Data to Monitor Highway Stability: A Case Study of a Massive Dobkoviky Landslide, Czech Republic
FÁROVÁ, Kateřina, Jan JELÉNEK, Veronika KOPAČKOVÁ-STRNADOVÁ a Petr KYCLZákladní údaje
Originální název
Comparing DInSAR and PSI Techniques Employed to Sentinel-1 Data to Monitor Highway Stability: A Case Study of a Massive Dobkoviky Landslide, Czech Republic
Název česky
Srovnání technik DInSAR a PSI použitých na datech Sentinel-1 pro sledování stability dálnic: Případová studie rozsáhlého sesuvu v Dobkovičkách, Česká republika.
Autoři
FÁROVÁ, Kateřina, Jan JELÉNEK, Veronika KOPAČKOVÁ-STRNADOVÁ a Petr KYCL
Vydání
REMOTE SENSING, Switzerland, MDPI, 2019, 2072-4292
Další údaje
Typ výsledku
Článek v odborném periodiku
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.509
UT WoS
000502284300075
Klíčová slova česky
Sentinel-1; DInSAR; PSI; sesedání; dálnice; sesuv; České středohoří
Klíčová slova anglicky
Sentinel-1; DInSAR; PSI; subsidence; highway; landslide; Ceske Stredohori Mountains
Štítky
Příznaky
Recenzováno
Změněno: 31. 1. 2024 13:47, Mgr. Kateřina Fárová
Anotace
V originále
Single-pair differential synthetic aperture radar interferometry (DInSAR) as well as more advanced methods, such as persistent scatterer interferometry (PSI), allow vertical displacements to be detected at the sub-centimeter level. Since 2014 free SAR data-Sentinel-1-have been collected systematically under the COPERNICUS program at a high temporal resolution and with global coverage. Such an open-access policy greatly helps build a wide user-community and develop diverse SAR-based applications. In this study conventional single-pair DInSAR and the PSI techniques were employed to monitor the vertical displacements of the newly constructed D8 highway, more specifically the part passing through the Ceske Stredohori Mountains, where, during highway construction, a massive landslide occurred in June 2013. For both DInSAR and PSI, free Sentinel-1 radar data were used; moreover, the conventional single-pair DInSAR workflow was processed using freely available SNAP software. Results from the radar interferometry were validated using in situ techniques, such as geodetic measurements, 3D inclinometers, and laser scanning. Both approaches proved their ability to achieve reliable results in detecting vertical displacement "hotspots". Additionally, in terms of absolute values, the PSI interferometry corresponds very well with the in situ measurements. This study also shows that open-source solutions (free data and SW) provided under the COPERNICUS program bring a great potential for monitoring vertical displacements.