Dr H.F. DUAN, member of RILS and Associate Professor of CEE, has received a funding of HK$1,244,750, granted by the National Natural Science Foundation of China (NSFC)/Research Grants Council (RGC) Joint Research Scheme (JRS) 2022/23.
Awarded Project Summary:
The Guangdong-Hong Kong-Macao Greater Bay Area (GBA) possesses an important strategic position in the overall development of China. In 2019, the Chinese Central Government released the “Outline Development Plan for the Guangdong–Hong Kong–Macao Greater Bay Area (GBA)”, with aims to fully utilize the advantages of the city cluster (9+2 cities) within the GBA. However, in recent years, extreme and compound climate and weather events (e.g., typhoon and rainstorm) have become more and more intense and frequent globally, leading to challenging situations for the environment and resources in coastal regions including the GBA. Recent studies have revealed that a large portion (estimated at 15-28% based on different methods) of current resident areas in the GBA will be below the flooding water level in 2100 due to climate change. This indicates that the coastal flooding issues induced by the joint occurrences of rainstorms and storm surges will become increasingly severe in the future in the GBA.
Through the close collaboration of the Hong Kong and Mainland teams, this joint project carries out scientific research on investigating the patterns and characteristics of joint occurrences of coastal rainstorms and storm surges, thereby assessing the resultant flooding risks in the GBA. This project addresses two scientific research issues as follows: (1) the underlying patterns of rainstorm-storm surge joint occurrences in the coastal regions of GBA; and (2) the physical mechanisms of coastal flooding caused by compound climate and weather events in the GBA. To this end, the comprehensive methodology of statistical analysis, numerical simulation, laboratory and field tests is applied for this research. The results and deliverables from this project could provide scientific guidance and technical support for effective planning and management of coastal flooding in the GBA, as well as offer significant references for urban flooding mitigation and prevention in other coastal regions.
| Research Units | Research Institute for Land and Space |
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