TRANSIENT REACTIVATION OF KARA-BOGAZ-GOL COASTAL LANDSLIDE, MODULATED BY HYDROLOGICAL FORCES CAPTURED USING INSAR (TURKMENISTAN)

Gökhan Aslan*, Marcello De Michele, Daniel Raucoules, Severine Bernardie, Ziyadin Çakir

*Bu çalışma için yazışmadan sorumlu yazar

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Özet

This paper presents a hydrologically modulated transient motion of world's largest active landslide occurring along the western shore of the Kara-Bogaz-Gol (KBG) lagoon of the Caspian Sea (CS) using Interferometric Synthetic Aperture Radar (InSAR) data. Here a dataset of Sentinel 1A/B IW SAR imagery acquired on ascending and descending modes between 2014 and 2020 has been processed to analyze the present-day evolution of this giant coastal landslide. The results shows that the eastern bank of the KBG lagoon (25x5 km) is horizontally sliding toward the lake at a rate of 25 mm/yr. The time series analysis reveals week-long accelerating slip events when the KBG reservoir water level reached its seasonal maximum. This study presents new information on the potential roles of the hydrological forces modulated by sea-level rises on the ancient landslides which originated during successive CS transgressions in the Late Glacial.

Orijinal dilİngilizce
Sayfalar5239-5242
Sayfa sayısı4
DOI'lar
Yayın durumuYayınlandı - 2021
Harici olarak yayınlandıEvet
Etkinlik2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium
Süre: 12 Tem 202116 Tem 2021

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???event.eventtypes.event.conference???2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Ülke/BölgeBelgium
ŞehirBrussels
Periyot12/07/2116/07/21

Bibliyografik not

Publisher Copyright:
© 2021 IEEE

Finansman

The raw interferometric products used in this study are freely distributed to the public via the European Space Agency (ESA) within the framework of the Copernicus Sentinel-1 mission. Processing of Sentinel 1A/B images is performed at TUBITAK ULAKBIM (The Turkish Academic Network and Information Centre), High Performance, and Grid Computing Center (TRUBA resources). TOPEX/POSEIDON and Jason series altimetry data provided by the USDA Global Reservoir and Lake Elevation Database.

FinansörlerFinansör numarası
Turkish Academic Network and Information Centre
U.S. Department of Agriculture
European Space Agency

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