气候变化领域集成服务门户(CCPortal): Revisiting the surface-energy-flux perspective on the sensitivity of global precipitation to climate change

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DOI	10.1007/s00382-018-4359-0
	Revisiting the surface-energy-flux perspective on the sensitivity of global precipitation to climate change
	Siler N.; Roe G.H.; Armour K.C.; Feldl N.
发表日期	2019
ISSN	0930-7575
起始页码	3983
结束页码	3995
卷号	52 期号:2020-07-08
英文摘要	Climate models simulate an increase in global precipitation at a rate of approximately 1–3% per Kelvin of global surface warming. This change is often interpreted through the lens of the atmospheric energy budget, in which the increase in global precipitation is mostly offset by an increase in net radiative cooling. Other studies have provided different interpretations from the perspective of the surface, where evaporation represents the turbulent transfer of latent heat to the atmosphere. Expanding on this surface perspective, here we derive a version of the Penman–Monteith equation that allows the change in ocean evaporation to be partitioned into a thermodynamic response to surface warming, and additional diagnostic contributions from changes in surface radiation, ocean heat uptake, and boundary-layer dynamics/relative humidity. In this framework, temperature is found to be the primary control on the rate of increase in global precipitation within model simulations of greenhouse gas warming, while the contributions from changes in surface radiation and ocean heat uptake are found to be secondary. The temperature contribution also dominates the spatial pattern of global evaporation change, leading to the largest fractional increases at high latitudes. In the surface energy budget, the thermodynamic increase in evaporation comes at the expense of the sensible heat flux, while radiative changes cause the sensible heat flux to increase. These tendencies on the sensible heat flux partly offset each other, resulting in a relatively small change in the global mean, and contributing to an impression that global precipitation is radiatively constrained. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Global warming; Hydrologic cycle
语种	英语
scopus关键词	energy flux; evaporation; global warming; hydrological cycle; precipitation (climatology); sensible heat flux; surface energy; thermodynamics
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146424
作者单位	College of Earth, Ocean, and Atmospheric Science, Oregon State University, 104 CEOAS Admin Building, Corvallis, OR 97331, United States; Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States; Department of Atmospheric Sciences, School of Oceanography, University of Washington, Seattle, WA, United States; Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA, United States
推荐引用方式 GB/T 7714	Siler N.,Roe G.H.,Armour K.C.,et al. Revisiting the surface-energy-flux perspective on the sensitivity of global precipitation to climate change[J],2019,52(2020-07-08).
APA	Siler N.,Roe G.H.,Armour K.C.,&Feldl N..(2019).Revisiting the surface-energy-flux perspective on the sensitivity of global precipitation to climate change.Climate Dynamics,52(2020-07-08).
MLA	Siler N.,et al."Revisiting the surface-energy-flux perspective on the sensitivity of global precipitation to climate change".Climate Dynamics 52.2020-07-08(2019).