气候变化领域集成服务门户(CCPortal): CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: A critical review

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DOI	10.5194/acp-21-9887-2021
	CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: A critical review
	Bright R.M.; Lund M.T.
发表日期	2021
ISSN	1680-7316
起始页码	9887
结束页码	9907
卷号	21 期号:12
英文摘要	Management of Earth's surface albedo is increasingly viewed as an important climate change mitigation strategy both on (Seneviratne et al., 2018) and off (Field et al., 2018; Kravitz et al., 2018) the land. Assessing the impact of a surface albedo change involves employing a measure like radiative forcing (RF) which can be challenging to digest for decision-makers who deal in the currency of CO2-equivalent emissions. As a result, many researchers express albedo change (α) RFs in terms of their CO2-equivalent effects, despite the lack of a standard method for doing so, such as there is for emissions of well-mixed greenhouse gases (WMGHGs; e.g., IPCC AR5, Myhre et al., 2013). A major challenge for converting α RFs into their CO2-equivalent effects in a manner consistent with current IPCC emission metric approaches stems from the lack of a universal time dependency following the perturbation (perturbation "lifetime"). Here, we review existing methodologies based on the RF concept with the goal of highlighting the context(s) in which the resulting CO2-equivalent metrics may or may not have merit. To our knowledge this is the first review dedicated entirely to the topic since the first CO2-eq. metric for α surfaced 20 years ago. We find that, although there are some methods that sufficiently address the time-dependency issue, none address or sufficiently account for the spatial disparity between the climate response to CO2 emissions and α - a major critique of α metrics based on the RF concept (Jones et al., 2013). We conclude that considerable research efforts are needed to build consensus surrounding the RF "efficacy"of various surface forcing types associated with α (e.g., crop change, forest harvest), and the degree to which these are sensitive to the spatial pattern, extent, and magnitude of the underlying surface forcings. © 2021 Ryan M. Bright.
语种	英语
scopus关键词	albedo; carbon dioxide; carbon emission; magnitude; radiative forcing; spatial variation
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246770
作者单位	Department of Forest and Climate, Norwegian Institute of Bioeconomy Research (NIBIO), P.O. Box 115, Ås, 1431, Norway; Centre for International Climate Research (CICERO), Oslo, 0349, Norway
推荐引用方式 GB/T 7714	Bright R.M.,Lund M.T.. CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: A critical review[J],2021,21(12).
APA	Bright R.M.,&Lund M.T..(2021).CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: A critical review.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(12).
MLA	Bright R.M.,et al."CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: A critical review".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.12(2021).