气候变化领域集成服务门户(CCPortal): Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers

CCPortal

DOI	10.1029/2019RG000691
	Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers
	Hodnebrog Ø.; Aamaas B.; Fuglestvedt J.S.; Marston G.; Myhre G.; Nielsen C.J.; Sandstad M.; Shine K.P.; Wallington T.J.
发表日期	2020
ISSN	87551209
卷号	58 期号:3
英文摘要	Human activity has led to increased atmospheric concentrations of many gases, including halocarbons, and may lead to emissions of many more gases. Many of these gases are, on a per molecule basis, powerful greenhouse gases, although at present-day concentrations their climate effect is in the so-called weak limit (i.e., their effect scales linearly with concentration). We published a comprehensive review of the radiative efficiencies (RE) and global warming potentials (GWP) for around 200 such compounds in 2013 (Hodnebrog et al., 2013, https://doi.org/10.1002/rog.20013). Here we present updated RE and GWP values for compounds where experimental infrared absorption spectra are available. Updated numbers are based on a revised “Pinnock curve”, which gives RE as a function of wave number, and now also accounts for stratospheric temperature adjustment (Shine & Myhre, 2020, https://doi.org/10.1029/2019MS001951). Further updates include the implementation of around 500 absorption spectra additional to those in the 2013 review and new atmospheric lifetimes from the literature (mainly from WMO (2019)). In total, values for 60 of the compounds previously assessed are based on additional absorption spectra, and 42 compounds have REs which differ by >10% from our previous assessment. New RE calculations are presented for more than 400 compounds in addition to the previously assessed compounds, and GWP calculations are presented for a total of around 250 compounds. Present-day radiative forcing due to halocarbons and other weak absorbers is 0.38 [0.33–0.43] W m−2, compared to 0.36 [0.32–0.40] W m−2 in IPCC AR5 (Myhre et al., 2013, https://doi.org/10.1017/CBO9781107415324.018), which is about 18% of the current CO2 forcing. ©2020. The Authors.
英文关键词	global warming potentials; halocarbons; radiative efficiencies
语种	英语
来源期刊	Reviews of Geophysics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/188078
作者单位	Center for International Climate Research (CICERO), Oslo, Norway; Vice-Chancellor's Office, Northumbria University, Newcastle, United Kingdom; Department of Chemistry, University of Oslo, Oslo, Norway; Department of Meteorology, University of Reading, Reading, United Kingdom; Research and Advanced Eng., Ford Motor Company, Dearborn, MI, United States
推荐引用方式 GB/T 7714	Hodnebrog Ø.,Aamaas B.,Fuglestvedt J.S.,et al. Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers[J],2020,58(3).
APA	Hodnebrog Ø..,Aamaas B..,Fuglestvedt J.S..,Marston G..,Myhre G..,...&Wallington T.J..(2020).Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers.Reviews of Geophysics,58(3).
MLA	Hodnebrog Ø.,et al."Updated Global Warming Potentials and Radiative Efficiencies of Halocarbons and Other Weak Atmospheric Absorbers".Reviews of Geophysics 58.3(2020).