Simulating changes in wind-wave field along the Mekong River Delta induced by the Holocene coastal change.

Katsuto Uehara

Presentation information

[J] Oral

H (Human Geosciences ) » H-CG Complex & General

[H-CG25] Earth surface processes related to deposition, erosion and sediment transport

Sun. May 22, 2022 9:00 AM - 10:30 AM 202 (International Conference Hall, Makuhari Messe)

convener:Koji Seike(Geological Survey of Japan, AIST), convener:Masayuki Ikeda(University of Tokyo), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University), convener:Hideko Takayanagi(Institute of Geology and Paleontology, Graduate School of Science, Tohoku University), Chairperson:Koji Seike(Geological Survey of Japan, AIST), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University)

9:20 AM - 9:35 AM

[HCG25-02] Simulating changes in wind-wave field along the Mekong River Delta induced by the Holocene coastal change.

*Katsuto Uehara¹ (1.Kyushu University)

Keywords:Holocene, Mekong River Delta, wind waves, numercial simulation

This study estimates changes in wind-wave field along the Mekong River Delta in Southern Vietnam taken place during the Holocene, where the coastline moved seaward for more than a hundred kilometer and the coastal landscape shifted from tide-dominated to wave-dominated type in the last ten thousand years, by using numerical models. The waves were simulated by combining paleo-morphologies reconstructed by referring to geological proxies and sea-surface winds estimated by a regional meteorological model incorporating the changes in land-sea distribution. The results obtained from the model experiments will be compared with strength and direction of the waves inferred from the shape of the paleo-coastlines.