气候变化领域集成服务门户(CCPortal): Weak hydrological sensitivity to temperature change over land, independent of climate forcing

CCPortal

DOI	10.1038/s41612-017-0005-5
	Weak hydrological sensitivity to temperature change over land, independent of climate forcing
	Samset B.H.; Myhre G.; Forster P.M.; Hodnebrog Ø.; Andrews T.; Boucher O.; Faluvegi G.; Fläschner D.; Kasoar M.; Kharin V.; Kirkevåg A.; Lamarque J.-F.; Olivié D.; Richardson T.B.; Shindell D.; Takemura T.; Voulgarakis A.
发表日期	2018
ISSN	23973722
卷号	1 期号:1
英文摘要	We present the global and regional hydrological sensitivity (HS) to surface temperature changes, for perturbations to CO2, CH4, sulfate and black carbon concentrations, and solar irradiance. Based on results from ten climate models, we show how modeled global mean precipitation increases by 2–3% per kelvin of global mean surface warming, independent of driver, when the effects of rapid adjustments are removed. Previously reported differences in response between drivers are therefore mainly ascribable to rapid atmospheric adjustment processes. All models show a sharp contrast in behavior over land and over ocean, with a strong surface temperature-driven (slow) ocean HS of 3–5%/K, while the slow land HS is only 0–2%/K. Separating the response into convective and large-scale cloud processes, we find larger inter-model differences, in particular over land regions. Large-scale precipitation changes are most relevant at high latitudes, while the equatorial HS is dominated by convective precipitation changes. Black carbon stands out as the driver with the largest inter-model slow HS variability, and also the strongest contrast between a weak land and strong sea response. We identify a particular need for model investigations and observational constraints on convective precipitation in the Arctic, and large-scale precipitation around the Equator. © 2018, The Author(s).
语种	英语
scopus关键词	arctic environment; black carbon; carbon dioxide; climate change; climate forcing; climate modeling; concentration (composition); global warming; hydrological response; methane; model test; precipitation intensity; solar radiation; sulfate; temperature effect; Arctic
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178226
作者单位	CICERO Center for International Climate and Environmental Research, Oslo, Norway; University of Leeds, Leeds, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; Laboratoire de Météorologie Dynamique, Institut Pierre-Simon Laplace, Université Pierre et Marie Curie/CNRS, Paris, 75005, France; NASA Goddard Institute for Space Studies and Center for Climate Systems Research, Columbia University, New York, NY, United States; Max-Planck-Institut für Meteorologie, Hamburg, Germany; Imperial College London, London, United Kingdom; Canadian Centre for Climate Modelling and Analysis, Gatineau, QC, Canada; Norwegian Meteorological Institute, Oslo, Norway; NCAR/UCAR, Boulder, CO, United States; Duke University, Durham, NC, United States; Kyushu University, Fukuoka, Japan
推荐引用方式 GB/T 7714	Samset B.H.,Myhre G.,Forster P.M.,et al. Weak hydrological sensitivity to temperature change over land, independent of climate forcing[J],2018,1(1).
APA	Samset B.H..,Myhre G..,Forster P.M..,Hodnebrog Ø..,Andrews T..,...&Voulgarakis A..(2018).Weak hydrological sensitivity to temperature change over land, independent of climate forcing.npj Climate and Atmospheric Science,1(1).
MLA	Samset B.H.,et al."Weak hydrological sensitivity to temperature change over land, independent of climate forcing".npj Climate and Atmospheric Science 1.1(2018).