Against the background of global climate change,the increasing heat health risk from the combined effect of changes in high temperature,exposure,vulner-ability,and other factors has become a growing concern.Yet the low number of temperature observation stations is insufficient to represent the complex changes in urban heat-waves,and subdistrict-scale(town,township,neighborhood committee,and equivalent)heat health risk and adaptability assessments are still limited.In this study,we built daytime and nighttime high-temperature interpolation models sup-ported by data from 225 meteorological stations in Beijing.The models performed well at interpolating the cumulative hours of high temperature and the interpolation quality at night was better than that during the day.We further estab-lished a methodological framework for heat health risk and adaptability assessments based on heat hazard,population exposure,social vulnerability,and adaptability at the sub-district scale in Beijing.Our results show that the heat health risk hotspots were mainly located in the central urban area,with 81 hotspots during the day and 76 at night.The aver-age value of the heat health risk index of urban areas was 5.60 times higher than that of suburban areas in the daytime,and 6.70 times higher than that of suburban areas in the night.Greater population density and higher intensity of heat hazards were the main reasons for the high risk in most heat health risk hotspots.Combined with a heat-adaptive-capac-ity evaluation for hotspot areas,this study suggests that 11 high-risk and low-adaptation subdistricts are priority areas for government action to reduce heat health risk in policy formulation and urban development.

Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China;College of Resource Environment and Tourism,Capital Normal University,Beijing 100048,China;Beijing Meteorological Disaster Prevention Center,Beijing 100089,China

[1]Xiaokang Su;Fang Wang;Demin Zhou;Hongwen Zhang-.Heat Health Risk and Adaptability Assessments at the Subdistrict Scale in Metropolitan Beijing)[J].国际灾害风险科学学报（英文版）,2022(06):987-1003

Adaptability,Subdistrict,subdistrict,subdistricts

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