Risk Assessment of Typhoon Disaster Chains in the Guangdong–Hong Kong–Macau Greater Bay Area, China

Abstract

The typhoon disaster chain is one of the leading climate risks in constructing the Guangdong–Hong Kong–Macau Greater Bay Area (GBA). In this study, the risks of the typhoon disaster chains including typhoon-induced gales, rainstorms, and storm surges in the GBA, as well as the comprehensive risk of typhoon disaster, are investigated at county level by comprehensively analyzing the hazard, exposure, and vulnerability. The results show that the high- and very-high-risk areas of typhoon–gale disaster chain are located in Zhuhai, Zhongshan, Foshan, Dongguan, central-southern Jiangmen, southern Shenzhen, and parts of Huizhou. The high- and very high-risk areas of typhoon–rainstorm disaster chain include Zhuhai, Zhongshan, Shenzhen, central-southern Foshan, northern Dongguan, central Jiangmen, and central Huizhou. Regarding the typhoon–storm surge disaster chain, the areas at high and very high risk are located in Zhuhai, eastern Zhongshan, and the coastal areas of the Pearl River Estuary. In addition, the comprehensive risk of typhoon disaster is very high in Zhuhai and high in Zhongshan, Jiangmen, Dongguan, and Shenzhen. By verifying the spatial correlation between typhoon disaster risk indexes and actual losses, it is found that the comprehensive risk index of typhoon disaster constructed in this study can better reflect the actual losses. Overall, the findings of this study can provide a scientific basis for typhoon disaster prevention and mitigation in the GBA, and it can also serve as a reference for typhoon disaster risk research in other areas.

Optimizing flood disaster management: unraveling the role of social organizations in China’s GBA through social network analysis

“…Figure 2 shows a map of the GBA. The GBA is located in the coastal area of southern China, and its geographical location makes it vulnerable to extreme weather events such as typhoons and heavy rainfall (Wang et al, 2022a;Wang et al, 2022b). The region is economically developed and highly urbanized.…”

Analyzing the response distribution of DO concentration and its environmental factors under the influence of typhoon rain events with remote sensing

“…Guangdong Province was classified into six levels of risk zones based on the integrated typhoon disaster risk, and the indirect economic impacts were further analyzed on this basis. Wang et al (2022) synthesized the risk, exposure, and vulnerability of three typhoon hazard chains, constructed a comprehensive typhoon hazard risk indicator for the Greater Bay Area, divided the risk level of typhoon hazard chains in important towns and cities as well as the comprehensive risk level, and verified the validity of the assessment methodology of the comprehensive risk indicator for typhoon hazards. In multi-attribute decision analysis, MULTIMOORA method has simple calculation, short time and strong robustness, and is widely used in process selection (Lixia et al, 2020;Qiong et al, 2021;Lei et al, 2022), location selection (Yuan-hua et al, 2023), risk assessment (Shenghua et al, 2019;Zhang et al, 2022) and other fields (Hafezalkotob et al, 2019).…”

Assessment of Disaster Loss Index and Characteristics of Gale Disaster in Typical Arid and Semiarid Lands

“…e literature review mainly highlights the time period, method, study region, research purpose, and significant findings of the study most related to wind loss analysis, as listed in Table 1, including studies [26][27][28][29][30][31][32][33][34][35][36][37][38] as follows.…”