Urban flood toughness evaluation modeling method based on social economic index coupling

The invention relates to the technical field of urban flood control simulation evaluation, in particular to an urban flood toughness evaluation modeling method based on social-economic index coupling, which comprises the following steps: S1, selecting an influence factor, determining the weight of an urban flood toughness value factor by using an entropy weight method, and establishing an urban flood toughness evaluation model; s2, evaluating the urban flood toughness of the research area by using the urban flood toughness evaluation model, and drawing a flood toughness horizontal spatial distribution diagram of each area of the research area in combination with a GIS spatial analysis function; s3, completing a flood toughness index distribution diagram of the research area by utilizing a mapping function of ArcGIS, and analyzing a flood toughness evaluation result of the research area; by optimizing resource allocation, guiding urban planning and improving post-disaster recovery capacity, the influence of fl