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DOI | 10.1088/1748-9326/ab495d |
Assessing present and future coastal moderation of extreme heat in the Eastern United States | |
Raymond, Colin1,2; Mankin, Justin S.3,4,5 | |
2019-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate models suggest a rapid increase of extremely hot days in coming decades. Cool marine air currently ventilates extreme heat in populous coastal regions, diminishing its impacts, but how well climate models capture this effect is uncertain. Here we conduct a comprehensive observational analysis of coastal extreme-heat ventilation?its length scale, magnitude, and regional patterns?and evaluate two ensembles of downscaled global climate models along the eastern US coast. We find that coastal areas are 2 C?4 C cooler than ?60 km inland, resulting in reductions near 50% in population exposure to temperatures above 35 C. Large seasonal and inter-regional variations are closely linked with land-sea temperature contrasts. High-resolution models underestimate coastal cooling by 50%?75%, implying that substantial and spatiotemporally varying model bias correction is necessary to create accurate projections of coastal extreme heat, which is expected to rise considerably with anthropogenic forcing. Our results underline the importance of regionally- and observationally-based perspectives for assessing future extreme heat and its impacts, and for positioning effective heat-risk management for communities and jurisdictions that span coast-to-inland areas. |
英文关键词 | extreme heat downscaled projections coastal impacts climate change high resolution |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000493057400005 |
WOS关键词 | LARGE-SCALE FLOW ; NEW-YORK-CITY ; SEA-BREEZE ; CLIMATE-CHANGE ; ENSEMBLE PROJECTIONS ; POPULATION EXPOSURE ; REGIONAL CLIMATE ; WARMING CONTRAST ; BIAS CORRECTION ; TEMPERATURE |
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/187998 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Dept Earth & Environm Sci, New York, NY 10027 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA; 3.Dartmouth Coll, Dept Geog, Hanover, NH 03755 USA; 4.Dartmouth Coll, Dept Earth Sci, Hanover, NH 03755 USA; 5.Columbia Univ, Div Ocean & Climate Phys, Lamont Doherty Earth Observ, Palisades, NY USA |
推荐引用方式 GB/T 7714 | Raymond, Colin,Mankin, Justin S.. Assessing present and future coastal moderation of extreme heat in the Eastern United States[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(11). |
APA | Raymond, Colin,&Mankin, Justin S..(2019).Assessing present and future coastal moderation of extreme heat in the Eastern United States.ENVIRONMENTAL RESEARCH LETTERS,14(11). |
MLA | Raymond, Colin,et al."Assessing present and future coastal moderation of extreme heat in the Eastern United States".ENVIRONMENTAL RESEARCH LETTERS 14.11(2019). |
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