TY - GEN
T1 - Towards unraveling total subsidence of a mega-delta-the potential of new PS InSAR data for the Mekong delta
AU - Minderhoud, Philip S.J.
AU - Hlavacova, Ivana
AU - Kolomaznik, Jan
AU - Neussner, Olaf
PY - 2020/4/22
Y1 - 2020/4/22
N2 - 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.
AB - 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.
U2 - 10.5194/piahs-382-327-2020
DO - 10.5194/piahs-382-327-2020
M3 - Conference paper
AN - SCOPUS:85088232271
VL - 382
T3 - Proceedings of the International Association of Hydrological Sciences
SP - 327
EP - 332
BT - Proceedings of the International Association of Hydrological Sciences (PIAHS)
PB - IAHS
T2 - 10th International Symposium on Land Subsidence, TISOLS 2020
Y2 - 17 May 2021 through 21 May 2021
ER -