Research on high temperature exposure of outdoor leisure activities in Chengdu,Sichuan Province
Extreme heat and heat waves pose significant dangers to outdoor leisure activities.Revealing the risk pattern and sensitive activity to high temperature can provide scientific basis for public health well-being and sustainable development of tourism.Scholars have rarely ad-dressed the heat exposure associated with outdoor activities in prior research,primarily because dependable data on outdoor activities is scarce.This article fills this research gap by mining tra-jectory data to reveal the distribution and heat exposure patterns of heat-sensitive outdoor activ-ities.Specifically,this study examined the thermal spatiotemporal pattern of Chengdu during the summer season from 2010 to 2020,utilizing all-weather surface temperature products.By doing so,it identified typical regions characterized by elevated risks of heat exposure.Using trajectory clustering models and trajectory processing algorithms,we additionally unveiled the high temperature exposure risk of critical clusters and nodes of typical outdoor tourism activi-ties.The findings indicate that the thermal pattern of the city of Chengdu is generally warm in the city's core and chilly in the northwest.High and sub-high temperature area encompass the central plain area along the Fourth Ring Road and exhibits an expansion trend to the east and north.Between 2010 and 2020,Chengdu experienced a sustained expansion of high-tempera-ture and sub-high-temperature zones.Outdoor tourism pursuits,including mountaineering and hiking,became more susceptible to elevated levels of heat exposure,with mountaineering be-ing less susceptible to high temperatures than hiking.The public is impacted by elevated tem-peratures throughout the entirety of their participation in outdoor leisure pursuits.The expan-sion of high-temperature zones has led to an increasing heat exposure risk of outdoor leisure ac-tivity in the northern and eastern Chengdu.Longquan Mountain in the eastern region may lose its climatic superiority in the future,and the areas that are appropriate for outdoor activities may undergo changes temporary and spatially.In light of the findings presented in this article,pertinent management departments may decide to give precedence to the optimization of ser-vice and infrastructure resource allocation in urban environments that are susceptible to high temperatures.
万方数据
维普
