Abstract
The risk of marine disasters based on flooding is one of the most significant natural disasters in coastal zones. It can be said that flooding in coastal zones has typical sea–land characteristics. Yet, relatively little research has been done in this area. Thus, by using the characteristics of marine disaster risk based on flooding in Qingdao and combining marine science and land science methods, this paper constructs a targeted indicator system for the flooding risk from marine disasters from the perspectives of the disaster natural chain and flooding process. According to the results, the Integrated Risk Index of marine disasters based on flooding in Qingdao is 0.3694, which represents a medium risk level for natural disasters in China’s major coastal areas. The first- and third-level indicators with large contribution rates are almost all natural indicators. This indicates that the natural disaster process and disaster chain greatly affect the flooding disaster risk in Qingdao. However, although natural factors play large roles in the risk of disaster, preventive methods implemented by humans can still have a positive effect on disaster reduction. Therefore, human society should still proceed with understanding disasters from natural processes, change their passive response to active adaptation, and actively strengthen preventive measures to alleviate the adverse impacts of increasingly serious natural disasters.
Highlights
Only by clarifying the natural processes of disasters, can we effectively identify the risk of disasters occurring
Based on a large amount of first-hand survey data, starting with the natural process of disasters, this paper built on the targeted flood-based marine disaster risk assessment indicator system
This indicates that the natural disaster process and disaster chain greatly affect the flooding disaster risk in Qingdao, while artificial control work has a relatively low effect on reducing the disaster risk
Summary
The impacts of climate change will inevitably influence the whole world [1]. In addition to changes in basic climate elements, climate change will increase the frequency, intensity, and risk of extreme weather events and natural disasters [2]. Flooding caused by typhoons and storm surges is one of the most significant natural disasters for coastal zones [3,4]. Under the influence of climate change, the growth rate of the regional extreme water level has already reached 2.0–14.1 mm/a in China’s coastal areas due to extreme weather events and rising sea levels [5,6]. It is necessary to focus on the flooding caused by marine disasters in coastal areas and incorporate climate change impacts into natural disaster planning and management
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