Synergies between Urban Heat Island and Heat Waves in Athens (Greece), during an extremely hot summer (2012)

被引:299
作者
Founda, Dimitra [1 ]
Santamouris, Mattheos [2 ,3 ]
机构
[1] Natl Observ Athens, Inst Environm Res & Sustainable Dev, GR-15236 Athens, Greece
[2] Univ New South Wales, Sch Built Environm, Anita Lawrence Chair High Performance Architectur, Sydney, NSW 2052, Australia
[3] Univ Athens, Phys Dept, GR-15772 Athens, Greece
关键词
CLIMATE-CHANGE; ENERGY-CONSUMPTION; HUMAN HEALTH; IMPACT; MORTALITY; CITIES; WEATHER; VULNERABILITY; EXPANSION; TRENDS;
D O I
10.1038/s41598-017-11407-6
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Heat waves (HWs) are recognized as a serious threat for human health worldwide, with urban areas being more vulnerable due to the urban heat island (UHI) effect and population density. Yet, in the climate change context, HWs are becoming more frequent, stronger and longer, which, coupled with intensifying urbanization exacerbates thermal risk for urban residents. Despite the profound impact of this global phenomenon there is no clear consensus so far on possible synergies between UHIs and HWs. The study sheds light on the complex synergies between UHIs and HWs focusing on coastal sites. A quite challenging period comprising five HW episodes during summer 2012 in Athens (Greece) was selected for analysis. A positive feedback between UHIs and HWs was found, with intensification of the average UHI magnitude by up to 3.5 degrees C during HWs, compared to summer background conditions. Our results contribute significantly to understanding synergies between UHIs and HWs that may strongly increase thermal risk in cities and vulnerability of urban population.
引用
收藏
页数:11
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