Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/aa9f73 |
Interactions between urban heat islands and heat waves | |
Zhao, Lei1; Oppenheimer, Michael2,3; Zhu, Qing4; Baldwin, Jane W.5; Ebi, Kristie L.6; Bou-Zeid, Elie7; Guan, Kaiyu8,9; Liu, Xu10 | |
2018-03-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2018 |
卷号 | 13期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Heat waves (HWs) are among the most damaging climate extremes to human society. Climate models consistently project that HWfrequency, severity, and duration will increase markedly over this century. For urban residents, the urban heat island (UHI) effect further exacerbates the heat stress resulting from HWs. Here we use a climate model to investigate the interactions between the UHI and HWs in 50 cities in the United States under current climate and future warming scenarios. We examine UHI2m (defined as urban-rural difference in 2m-height air temperature) and UHIs (defined as urban-rural difference in radiative surface temperature). Our results show significant sensitivity of the interaction between UHI and HWs to local background climate and warming scenarios. Sensitivity also differs between daytime and nighttime. During daytime, cities in the temperate climate region show significant synergistic effects between UHI and HWs in current climate, with an average of 0.4 K higher UHI2m or 2.8 K higher UHIs during HWs than during normal days. These synergistic effects, however, diminish in future warmer climates. In contrast, the daytime synergistic effects for cities in dry regions are insignificant in the current climate, but emerge in future climates. At night, the synergistic effects are similar across climate regions in the current climate, and are stronger in future climate scenarios. We use a biophysical factorization method to disentangle the mechanisms behind the interactions between UHI and HWs that explain the spatial-temporal patterns of the interactions. Results show that the difference in the increase of urban versus rural evaporation and enhanced anthropogenic heat emissions (air conditioning energy use) during HWs are key contributors to the synergistic effects during daytime. The contrast in water availability between urban and rural land plays an important role in determining the contribution of evaporation. At night, the enhanced release of stored and anthropogenic heat during HWs are the primary contributors to the synergistic effects. |
英文关键词 | heat wave urban heat island surface evaporation surface biophysical processes climate change |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000425435300003 |
WOS关键词 | CLIMATE-CHANGE ; ENERGY DEMAND ; MORTALITY ; TEMPERATURE ; IMPACT ; VARIABILITY ; EXTREMES ; HEALTH ; MODEL ; ADAPTATION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36543 |
专题 | 气候变化 |
作者单位 | 1.Princeton Univ, Program Sci Technol & Environm Policy STEP, Princeton, NJ 08544 USA; 2.Princeton Univ, Woodrow Wilson Sch Publ & Int Affairs, Princeton, NJ 08544 USA; 3.Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA; 4.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Climate Sci Dept, Berkeley, CA USA; 5.Princeton Univ, Program Atmospher & Ocean Sci AOS, Princeton, NJ 08544 USA; 6.Univ Washington, Dept Global Hlth, Seattle, WA 98195 USA; 7.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USA; 8.Univ Illinois, Dept Nat Resources & Environm Sci, Champaign, IL USA; 9.Univ Illinois, Natl Ctr Supercomp Applicat, Champaign, IL USA; 10.Lawrence Berkeley Natl Lab, Int Energy Anal Dept, China Energy Grp, Berkeley, CA USA |
推荐引用方式 GB/T 7714 | Zhao, Lei,Oppenheimer, Michael,Zhu, Qing,et al. Interactions between urban heat islands and heat waves[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(3). |
APA | Zhao, Lei.,Oppenheimer, Michael.,Zhu, Qing.,Baldwin, Jane W..,Ebi, Kristie L..,...&Liu, Xu.(2018).Interactions between urban heat islands and heat waves.ENVIRONMENTAL RESEARCH LETTERS,13(3). |
MLA | Zhao, Lei,et al."Interactions between urban heat islands and heat waves".ENVIRONMENTAL RESEARCH LETTERS 13.3(2018). |
条目包含的文件 | 条目无相关文件。 |
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