气候变化领域集成服务门户(CCPortal): Latent heat must be visible in climate communications

CCPortal

DOI	10.1002/wcc.779
	Latent heat must be visible in climate communications
	Matthews, Tom; Byrne, Michael; Horton, Radley; Murphy, Conor; Pielke, Roger; Raymond, Colin; Thorne, Peter; Wilby, Robert L.
发表日期	2022
ISSN	1757-7780
EISSN	1757-7799
卷号	13 期号:4 页码:12
英文摘要	Anthropogenic forcing is driving energy accumulation in the Earth system, including increases in the sensible heat content of the atmosphere, as measured by dry-bulb temperature-the metric that is almost universally used for communications about climate change. The atmosphere is also moistening, though, representing an accumulation of latent heat, which is partly concealed by dry-bulb temperature trends. We highlight that, consistent with basic theory, latent heat gains are outpacing sensible heat gains over about half of the Earth's surface. The difference is largest in the tropics, where global hotspots of total heat accumulation are located, and where regional disparities in heating rates are very poorly represented by dry-bulb temperatures. Including latent heat in climate-change metrics captures this heat accumulation and therefore improves adaptation-relevant understanding of the extreme humid heat and precipitation hazards that threaten these latitudes so acutely. For example, irrigation can lower peak dry-bulb temperatures, but amplify latent heat content by a larger margin, intensifying dangerous heat stress. Based on a review of the research literature, our Perspective therefore calls for routine use of equivalent temperature, a measure that expresses the combined sensible and latent heat content of the atmosphere in the familiar units of degrees C or K. We recognize that dry-bulb air temperature must remain a key indicator of the atmospheric state, not least for the many sectors that are sensitive to sensible heat transfer. However, we assert here that more widespread use of equivalent temperature could improve process understanding, public messaging, and adaptation to climate change. This article is categorized under: Assessing Impacts of Climate Change > Observed Impacts of Climate Change Paleoclimates and Current Trends > Earth System Behavior
英文关键词	climate change communication; equivalent temperature; extreme heat; heat accumulation; sensible heat
学科领域	Environmental Studies; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000782406200001
来源期刊	WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272933
作者单位	University of London; King's College London; University of St Andrews; University of Oxford; Columbia University; Maynooth University; University of Colorado System; University of Colorado Boulder; California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); Loughborough University
推荐引用方式 GB/T 7714	Matthews, Tom,Byrne, Michael,Horton, Radley,et al. Latent heat must be visible in climate communications[J],2022,13(4):12.
APA	Matthews, Tom.,Byrne, Michael.,Horton, Radley.,Murphy, Conor.,Pielke, Roger.,...&Wilby, Robert L..(2022).Latent heat must be visible in climate communications.WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE,13(4),12.
MLA	Matthews, Tom,et al."Latent heat must be visible in climate communications".WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE 13.4(2022):12.