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DOI | 10.5194/acp-20-2953-2020 |
Impact of poleward heat and moisture transports on Arctic clouds and climate simulation | |
Baek, Eun-Hyuk1; Kim, Joo-Hong2; Park, Sungsu3; Kim, Baek-Min4; Jeong, Jee-Hoon1 | |
2020-03-12 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:5页码:2953-2966 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Many general circulation models (GCMs) have difficulty simulating Arctic clouds and climate, causing substantial inter-model spread. To address this issue, two Atmospheric Model Intercomparison Project (AMIP) simulations from the Community Atmosphere Model version 5 (CAMS) and Seoul National University (SNU) Atmosphere Model version 0 (SAMO) with a unified convection scheme (UNICON) are employed to identify an effective mechanism for improving Arctic cloud and climate simulations. Over the Arctic, SAMO produced a larger cloud fraction and cloud liquid mass than CAMS, reducing the negative Arctic cloud biases in CAMS. The analysis of cloud water condensation rates indicates that this improvement is associated with an enhanced net condensation rate of water vapor into the liquid condensate of Arctic low-level clouds, which in turn is driven by enhanced poleward transports of heat and moisture by the mean meridional circulation and transient eddies. The reduced Arctic cloud biases lead to improved simulations of surface radiation fluxes and near-surface air temperature over the Arctic throughout the year. The association between the enhanced poleward transports of heat and moisture and increase in liquid clouds over the Arctic is also evident not only in both models, but also in the multi-model analysis. Our study demonstrates that enhanced poleward heat and moisture transport in a model can improve simulations of Arctic clouds and climate. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519929600001 |
WOS关键词 | MIXED-PHASE CLOUDS ; MODEL VERSION 5 ; SEA-ICE ; TEMPERATURE ; CONVECTION ; ATMOSPHERE ; AMPLIFICATION ; SENSITIVITY ; RADIATION ; BIASES |
WOS类目 | Environmental Sciences ; 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/278678 |
专题 | 地球科学 |
作者单位 | 1.Chonnam Natl Univ, Fac Earth Syst & Environm Sci, 77 Yongbong Ro, Gwangju 61186, South Korea; 2.Korea Polar Res Inst, Unit Arctic Sea Ice Predict, 26 Songdomirae Ro, Incheon 21990, South Korea; 3.Seoul Natl Univ, Sch Earth & Environm Sci, 1 Gwanak Ro, Seoul 08826, South Korea; 4.Pukyong Natl Univ, Dept Environm Atmospher Sci, 49 Yongso Ro, Busan 48513, South Korea |
推荐引用方式 GB/T 7714 | Baek, Eun-Hyuk,Kim, Joo-Hong,Park, Sungsu,et al. Impact of poleward heat and moisture transports on Arctic clouds and climate simulation[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(5):2953-2966. |
APA | Baek, Eun-Hyuk,Kim, Joo-Hong,Park, Sungsu,Kim, Baek-Min,&Jeong, Jee-Hoon.(2020).Impact of poleward heat and moisture transports on Arctic clouds and climate simulation.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(5),2953-2966. |
MLA | Baek, Eun-Hyuk,et al."Impact of poleward heat and moisture transports on Arctic clouds and climate simulation".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.5(2020):2953-2966. |
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