加拿大与高温风险相关的区域社会经济脆弱性变化的时空分析。
Spatiotemporal analysis of regional socio-economic vulnerability change associated with heat risks in Canada.
作者信息
Ho Hung Chak, Knudby Anders, Chi Guangqing, Aminipouri Mehdi, Yuk-FoLai Derrick
机构信息
Department of Land Surveying and Geo-Informatics, Hong Kong Polytechnic University, Hong Kong.
Department of Geography, Environment and Geomatics, University of Ottawa, Ottawa, ON, Canada.
出版信息
Appl Geogr. 2018 Jun;95:61-70. doi: 10.1016/j.apgeog.2018.04.015. Epub 2018 May 1.
Excess mortality can be caused by extreme hot weather events, which are increasing in severity and frequency in Canada due to climate change. Individual and social vulnerability factors influence the mortality risk associated with a given heat exposure. We constructed heat vulnerability indices using census data from 2006 and 2011 in Canada, developed a novel design to compare spatiotemporal changes of heat vulnerability, and identified locations that may be increasingly vulnerable to heat. The results suggest that 1) urban areas in Canada are particularly vulnerable to heat, 2) suburban areas and satellite cities around major metropolitan areas show the greatest increases in vulnerability, and 3) heat vulnerability changes are driven primarily by changes in the density of older ages and infants. Our approach is applicable to heat vulnerability analyses in other countries.
过高死亡率可能由极端炎热天气事件导致，由于气候变化，此类事件在加拿大的严重程度和发生频率正在增加。个体和社会脆弱性因素会影响与特定热暴露相关的死亡风险。我们利用加拿大2006年和2011年的人口普查数据构建了热脆弱性指数，设计了一种新颖的方法来比较热脆弱性的时空变化，并确定了可能对高温日益脆弱的地点。结果表明：1）加拿大城市地区尤其容易受到高温影响；2）主要大都市周边的郊区和卫星城的脆弱性增加最为显著；3）热脆弱性变化主要由老年人和婴儿密度的变化驱动。我们的方法适用于其他国家的热脆弱性分析。
Zotero 插件