气候变化领域集成服务门户(CCPortal): Nonlinear Coupling Between Longwave Radiative Climate Feedbacks

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DOI	10.1029/2020JD033995
	Nonlinear Coupling Between Longwave Radiative Climate Feedbacks
	Huang H.; Huang Y.
发表日期	2021
ISSN	2169897X
卷号	126 期号:8
英文摘要	The radiative feedbacks of such climate variables as air temperature, water vapor, and clouds influence the energy budget of the climate system. Measuring the strength of each feedback is of critical importance for understanding the climate sensitivity and its spread in climate models. Most feedback analyses to-date, such as those using the kernel method, have been based on a linear decomposition of the radiation budget and neglect the nonlinear effects between the feedbacks. In this work, we quantify the coupling effects between different longwave radiative feedbacks based on partial radiative perturbations using a radiative transfer model. Two climate change scenarios, the El niño-Southern Oscillation (ENSO) and the quadrupling CO2 (4xCO2), are examined. We find that the coupling effect between water vapor and cloud is the strongest among all the coupling effects and can amount to 50% or greater of the univariate cloud feedback. This significant coupling effect results from the masking effect of the two feedbacks on each other and can be well explained by a simple analytic model. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	coupling effect; radiative feedback
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185286
作者单位	Department of Atmospheric and Oceanic Sciences, McGill University, Montreal, Canada; Department of Atmospheric and Oceanic Sciences, Peking University, Beijing, China
推荐引用方式 GB/T 7714	Huang H.,Huang Y.. Nonlinear Coupling Between Longwave Radiative Climate Feedbacks[J],2021,126(8).
APA	Huang H.,&Huang Y..(2021).Nonlinear Coupling Between Longwave Radiative Climate Feedbacks.Journal of Geophysical Research: Atmospheres,126(8).
MLA	Huang H.,et al."Nonlinear Coupling Between Longwave Radiative Climate Feedbacks".Journal of Geophysical Research: Atmospheres 126.8(2021).