Contributions to Coastal Flooding Events in Southeast of Vietnam and their link with Global Mean Sea Level Rise

Geosciences

Benoit Meyssignac¹  LuisPedro Melo de Almeida¹  NguyenTrung Viet²  Rafael Almar³ 

[1] Centre National d’Etudes Spatiales, Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (CNES-LEGOS), 31400 Toulouse, France;Hanoi Water Resources University, 116705 Hanoi, Vietnam;Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (IRD-LEGOS), 31400 Toulouse, France;

关键词: coastal flooding;    sea level rise;    remote sensing;   

DOI  :  10.3390/geosciences8120437

来源: DOAJ

【 摘 要 】

This work analyzes the components of the total water level (TWL) that cause flooding in a tropical coastal area (Nha Trang beach, Southeast of Vietnam), and examines their link with global mean sea level rise (GMSLR). Interactions between the wave induced run-up (R) and astronomical tide (AT) were responsible for 43% of the 35 flooding events identified between 1993 and 2015. Most of these events (97%) took place during the winter monsoon season, when long-lasting extreme R and positive non-tidal residual (NTR) are likely to occur. Removal of the GMSLR trend from the NTR was found to affect the flood occurrence of 17% of these events, while the trend in wave height did not have any detectable impact. Our research highlights the direct connection between global climate changes and coastal flooding events.

【 授权许可】

Unknown