DYNAMICS OF A GIANT SLOW LANDSLIDE ALONG THE COAST OF THE ARAL SEA (CENTRAL ASIA)

Gökhan Aslan; Marcello de Michele; Daniel Raucoules; François Renard; Ziyadin Çakir

doi:10.1109/IGARSS47720.2021.9554550

DYNAMICS OF A GIANT SLOW LANDSLIDE ALONG THE COAST OF THE ARAL SEA (CENTRAL ASIA)

Gökhan Aslan^*, Marcello de Michele, Daniel Raucoules, François Renard, Ziyadin Çakir

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

Abstract

This paper presents the dynamics of the world's largest lateral mega-spreading landslide cluster along the western shoreline of the Aral Sea in Uzbekistan (Central Asia) using Interferometric Synthetic Aperture Radar (InSAR) time series analysis of three Sentinel-1 IW datasets over the period 2015-2020. It extends >50km wide and corresponds to a gravity-induced lateral spreading movement of relatively intact Sarmatian limestone blocks that are sliding over a highly plastic clay layer at rates up to 40 mm/yr with a clear dominance of horizontal motion at a nearly constant velocity. Slow vertical motions (up to 5 mm/yr) are localized along narrow strips of terraces where rock spread is attributed to rotational subsidence.

Original language	English
Pages	8384-8387
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS47720.2021.9554550
Publication status	Published - 2021
Externally published	Yes
Event	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium Duration: 12 Jul 2021 → 16 Jul 2021

Conference

Conference	2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/Territory	Belgium
City	Brussels
Period	12/07/21 → 16/07/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

Aral Sea
InSAR
Landslide
Lateral Rock Spreading
Ustyurt Plateau

Access to Document

10.1109/IGARSS47720.2021.9554550

Cite this

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title = "DYNAMICS OF A GIANT SLOW LANDSLIDE ALONG THE COAST OF THE ARAL SEA (CENTRAL ASIA)",

abstract = "This paper presents the dynamics of the world's largest lateral mega-spreading landslide cluster along the western shoreline of the Aral Sea in Uzbekistan (Central Asia) using Interferometric Synthetic Aperture Radar (InSAR) time series analysis of three Sentinel-1 IW datasets over the period 2015-2020. It extends >50km wide and corresponds to a gravity-induced lateral spreading movement of relatively intact Sarmatian limestone blocks that are sliding over a highly plastic clay layer at rates up to 40 mm/yr with a clear dominance of horizontal motion at a nearly constant velocity. Slow vertical motions (up to 5 mm/yr) are localized along narrow strips of terraces where rock spread is attributed to rotational subsidence.",

keywords = "Aral Sea, InSAR, Landslide, Lateral Rock Spreading, Ustyurt Plateau",

author = "G{\"o}khan Aslan and {de Michele}, Marcello and Daniel Raucoules and Fran{\c c}ois Renard and Ziyadin {\c C}akir",

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year = "2021",

doi = "10.1109/IGARSS47720.2021.9554550",

language = "English",

pages = "8384--8387",

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AU - Aslan, Gökhan

AU - de Michele, Marcello

AU - Raucoules, Daniel

AU - Renard, François

AU - Çakir, Ziyadin

PY - 2021

Y1 - 2021

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AB - This paper presents the dynamics of the world's largest lateral mega-spreading landslide cluster along the western shoreline of the Aral Sea in Uzbekistan (Central Asia) using Interferometric Synthetic Aperture Radar (InSAR) time series analysis of three Sentinel-1 IW datasets over the period 2015-2020. It extends >50km wide and corresponds to a gravity-induced lateral spreading movement of relatively intact Sarmatian limestone blocks that are sliding over a highly plastic clay layer at rates up to 40 mm/yr with a clear dominance of horizontal motion at a nearly constant velocity. Slow vertical motions (up to 5 mm/yr) are localized along narrow strips of terraces where rock spread is attributed to rotational subsidence.

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KW - Landslide

KW - Lateral Rock Spreading

KW - Ustyurt Plateau

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T2 - 2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021

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DYNAMICS OF A GIANT SLOW LANDSLIDE ALONG THE COAST OF THE ARAL SEA (CENTRAL ASIA)

Abstract

Conference

Bibliographical note

Keywords

Access to Document

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Cite this