Evaluation of synergy ability and reconstruction of synergy organization for marine disaster monitoring and early warning in coastal cities, China

Abstract

In order to improve the synergy level of marine disaster monitoring and early warning in coastal cities, an evaluation index system of 21 factors with 5 dimensions was constructed based on the synergy theory. The weights of all levels of indicators were determined by coefficient of variation method, and 24 representative coastal cities in China were evaluated by multi-level grey relational method. The evaluation results show that: the level of synergy in each dimension of 24 coastal cities is uneven, and the distribution level is not high. The level of synergy of marine disaster monitoring and early warning in coastal cities is positively correlated with the level of economic development. The level of synergy of monitoring and early warning of marine disasters in 24 coastal cities is not high, which is generally distributed in medium and low levels. Furthermore, according to the evaluation results and the current situation of marine disaster monitoring and early warning in coastal cities, a network organization structure is proposed to enhance the synergy ability of coastal city monitoring and early warning, so as to provide practical basis for the construction of China's coastal cities in the global marine disaster monitoring and early warning synergy.

Trend Analysis of Marine Construction Disaster Prevention Based on Text Mining: Evidence from China

“…Between 1998 and 2017, tsunami losses totaled 251,770 people and $280 billion [3] . Over the past decade, the annual direct econom-ic losses caused by marine disasters in China's coastal cities have reached an average of 10.004 billion yuan, with storm surges causing particularly serious losses, accounting for about 97% of the total [28] . With such disasters' increasing frequency and intensity, exploring innovative approaches and recent advances in disaster prevention in marine building construction has become imperative.…”