3. RESULTS
3.1 Distribution patterns
of urban flooding points
From 2011 to 2021, urban flooding
points were mainly of the districts Haidian and Fengtai (Fig.3). The
low-density area of urban flooding points was mainly distributed in the
edge of the study area. Interestingly, the historic districts of
Beijing, such as Dongcheng and Xicheng districts, had fewer flooding
points. Results of Local Morans I showed that the urban flooding hot
spots were obvious (Fig.3). The hot spots were mainly distributed in
Haidian and Fengtai districts, while cold spots were small and
aggregated in northeast of the study area and dispersed in the
southeastern part of the study area.