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DOI | 10.1038/s41558-018-0339-y |
Polar amplification dominated by local forcing and feedbacks | |
Stuecker, Malte F.1,2; Bitz, Cecilia M.3; Armour, Kyle C.3,4; Proistosescu, Cristian5; Kang, Sarah M.6; Xie, Shang-Ping7; Kim, Doyeon6; McGregor, Shayne8,9; Zhang, Wenjun10; Zhao, Sen10,11; Cai, Wenju12,13,14; Dong, Yue3; Jin, Fei-Fei11 | |
2018-12-01 | |
发表期刊 | NATURE CLIMATE CHANGE |
ISSN | 1758-678X |
EISSN | 1758-6798 |
出版年 | 2018 |
卷号 | 8期号:12页码:1076-+ |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea; USA; Australia; Peoples R China |
英文摘要 | The surface temperature response to greenhouse gas forcing displays a characteristic pattern of polar-amplified warming(1-5), particularly in the Northern Hemisphere. However, the causes of this polar amplification are still debated. Some studies highlight the importance of surface-albedo feedback(6-8), while others find larger contributions from longwave feedbacks(4,9,10), with changes in atmospheric and oceanic heat transport also thought to play a role(11-16). Here, we determine the causes of polar amplification using climate model simulations in which CO2 forcing is prescribed in distinct geographical regions, with the linear sum of climate responses to regional forcings replicating the response to global forcing. The degree of polar amplification depends strongly on the location of CO2 forcing. In particular, polar amplification is found to be dominated by forcing in the polar regions, specifically through positive local lapse-rate feedback, with ice-albedo and Planck feedbacks playing subsidiary roles. Extra-polar forcing is further shown to be conducive to polar warming, but given that it induces a largely uniform warming pattern through enhanced poleward heat transport, it contributes little to polar amplification. Therefore, understanding polar amplification requires primarily a better insight into local forcing and feedbacks rather than extra-polar processes. |
领域 | 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000451919500018 |
WOS关键词 | SEA-ICE ; CLIMATE SENSITIVITY ; REMOTE IMPACTS ; PATTERN ; MODEL |
WOS类目 | Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33885 |
专题 | 资源环境科学 |
作者单位 | 1.Inst Basic Sci, Ctr Climate Phys, Busan, South Korea; 2.Pusan Natl Univ, Busan, South Korea; 3.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 4.Univ Washington, Sch Oceanog, Seattle, WA 98195 USA; 5.Univ Washington, Joint Inst Study Atmosphere & Ocean, Seattle, WA 98195 USA; 6.Ulsan Natl Inst Sci & Technol, Sch Urban & Environm Engn, Ulsan, South Korea; 7.Univ Calif San Diego, Scripps Inst Oceanog, San Diego, CA 92103 USA; 8.Monash Univ, Sch Earth Atmosphere & Environm, Melbourne, Vic, Australia; 9.ARC Ctr Excellence Climate Extremes, Sydney, NSW, Australia; 10.Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China; 11.Univ Hawaii Manoa, Dept Atom Phys, Honolulu, HI 96822 USA; 12.Ocean Univ China, Inst Adv Ocean Studies, Key Lab Phys Oceanog, Qingdao, Peoples R China; 13.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China; 14.CSIRO Oceans & Atmosphere, Ctr Southern Hemisphere Oceans Res, Hobart, Tas, Australia |
推荐引用方式 GB/T 7714 | Stuecker, Malte F.,Bitz, Cecilia M.,Armour, Kyle C.,et al. Polar amplification dominated by local forcing and feedbacks[J]. NATURE CLIMATE CHANGE,2018,8(12):1076-+. |
APA | Stuecker, Malte F..,Bitz, Cecilia M..,Armour, Kyle C..,Proistosescu, Cristian.,Kang, Sarah M..,...&Jin, Fei-Fei.(2018).Polar amplification dominated by local forcing and feedbacks.NATURE CLIMATE CHANGE,8(12),1076-+. |
MLA | Stuecker, Malte F.,et al."Polar amplification dominated by local forcing and feedbacks".NATURE CLIMATE CHANGE 8.12(2018):1076-+. |
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