气候变化领域集成服务门户(CCPortal): Last Glacial Maximum (LGM) climate forcing and ocean dynamical feedback and their implications for estimating climate sensitivity

CCPortal

DOI	10.5194/cp-17-253-2021
	Last Glacial Maximum (LGM) climate forcing and ocean dynamical feedback and their implications for estimating climate sensitivity
	Zhu J.; Poulsen C.J.
发表日期	2021
ISSN	1814-9324
起始页码	227
结束页码	243
卷号	17 期号:1
英文摘要	Equilibrium climate sensitivity (ECS) has been directly estimated using reconstructions of past climates that are different than today's. A challenge to this approach is that temperature proxies integrate over the timescales of the fast feedback processes (e.g., changes in water vapor, snow, and clouds) that are captured in ECS as well as the slower feedback processes (e.g., changes in ice sheets and ocean circulation) that are not. A way around this issue is to treat the slow feedbacks as climate forcings and independently account for their impact on global temperature. Here we conduct a suite of Last Glacial Maximum (LGM) simulations using the Community Earth System Model version 1.2 (CESM1.2) to quantify the forcing and efficacy of land ice sheets (LISs) and greenhouse gases (GHGs) in order to estimate ECS. Our forcing and efficacy quantification adopts the effective radiative forcing (ERF) and adjustment framework and provides a complete accounting for the radiative, topographic, and dynamical impacts of LIS on surface temperatures. ERF and efficacy of LGM LIS are
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183612
作者单位	Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, CO 80305, United States; Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, United States
推荐引用方式 GB/T 7714	Zhu J.,Poulsen C.J.. Last Glacial Maximum (LGM) climate forcing and ocean dynamical feedback and their implications for estimating climate sensitivity[J],2021,17(1).
APA	Zhu J.,&Poulsen C.J..(2021).Last Glacial Maximum (LGM) climate forcing and ocean dynamical feedback and their implications for estimating climate sensitivity.Climate of the Past,17(1).
MLA	Zhu J.,et al."Last Glacial Maximum (LGM) climate forcing and ocean dynamical feedback and their implications for estimating climate sensitivity".Climate of the Past 17.1(2021).