Towards unraveling total subsidence of a mega-delta-the potential of new PS InSAR data for the Mekong delta

Philip S.J. Minderhoud*, Ivana Hlavacova, Jan Kolomaznik, Olaf Neussner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

8 Citations (Scopus)

Abstract

Total subsidence in deltaic areas is the cumulative effect of a range of driving mechanisms, both natural and anthropogenic. The populous and low-lying Vietnamese Mekong delta is facing accelerating subsidence rates and effective mitigation strategies are urgently needed to save-guard the future sustainability of the delta. This paper gathers results from existing measurements and estimates of subsidence in the Mekong delta and presents new, delta-wide datasets of PSI observations of vertical velocity from 2014-2019. We describe the practical application of this new data in ongoing projects in Vietnam and outline a planned approach to determine depth-dependent subsidence rates, using this new dataset in combination with field surveys and physics-based numerical models, to advance towards improved quantitation of the contributions of individual subsidence mechanisms.
Original languageEnglish
Title of host publicationProceedings of the International Association of Hydrological Sciences (PIAHS)
PublisherIAHS
Pages327-332
Number of pages6
Volume382
DOIs
Publication statusPublished - 22 Apr 2020
Externally publishedYes
Event10th International Symposium on Land Subsidence, TISOLS 2020 - Delft, Netherlands
Duration: 17 May 202121 May 2021

Publication series

NameProceedings of the International Association of Hydrological Sciences
PublisherCopernicus GmbH
ISSN (Print)2199-8981

Conference

Conference10th International Symposium on Land Subsidence, TISOLS 2020
Country/TerritoryNetherlands
CityDelft
Period17/05/2121/05/21

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