| Contribution of warm and moist atmospheric flow to a record minimum July sea ice extent of the Arctic in 2020 | |
| Liang, Yu1,2,4; Bi, Haibo1,2,3; Huang, Haijun1,2; Lei, Ruibo4,7; Liang, Xi5; Cheng, Bin6; Wang, Yunhe1 | |
| 2022-03-31 | |
| 发表期刊 | CRYOSPHERE
 |
| ISSN | 1994-0416 |
| 卷号 | 16期号:3页码:1107-1123 |
| 通讯作者 | Bi, Haibo(bhb@qdio.ac.cn) ; Huang, Haijun(hjhuang@qdio.ac.cn) |
| 摘要 | The satellite observations unveiled that the July sea ice extent of the Arctic shrank to the lowest value, since 1979, in 2020 with a major ice retreat in the Eurasian shelf seas including Kara, Laptev, and East Siberian seas. Based on the ERA-5 reanalysis products, we explored the impacts of warm and moist air-mass transport on this extreme event. The results revealed that anomalously high energy and moisture converged into these regions in the spring months (April to June) of 2020, leading to a burst of high moisture content and warming within the atmospheric column. The convergence is accompanied by local enhanced downward longwave surface radiation and turbulent fluxes, which is favorable for initiating an early melt onset in the region with severe ice loss. Once the melt begins, solar radiation plays a decisive role in leading to further sea ice depletion due to ice-albedo positive feedback. The typical trajectories of the synoptic cyclones that occurred on the Eurasian side in spring 2020 agree well with the path of atmospheric flow. Assessments suggest that variations in characteristics of the spring cyclones are conducive to the severe melt of sea ice. We argue that large-scale atmospheric circulation and synoptic cyclones acted in concert to trigger the exceptional poleward transport of total energy and moisture from April to June to cause this record minimum of sea ice extent in the following July. |
| DOI | 10.5194/tc-16-1107-2022 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | General Project of Natural Science Foundation of Shandong Province[ZR2020MD100] ; National Natural Science Foundation of China[41406215] ; National Natural Science Foundation of China[42076185] ; National Natural Science Foundation of China[41976219] ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2020Q12] ; Open Funds for the Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences[MGE2020KG04] ; Academy of Finland[317999] |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000776044500001 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/178607 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Bi, Haibo; Huang, Haijun |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 4.MNR, Key Lab Polar Sci, Polar Res Inst China, Shanghai 200136, Peoples R China 5.Natl Marine Environm Forecasting Ctr, Key Lab Res Marine Hazard Forecasting Ctr, Beijing 100081, Peoples R China 6.Finnish Meteorol Inst, Polar Meteorol & Climatol, POB 33, Helsinki 00931, Finland 7.Zhejiang Univ, Technol & Equipment Engn Ctr Polar Observat, Zhoushan 316000, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Liang, Yu,Bi, Haibo,Huang, Haijun,et al. Contribution of warm and moist atmospheric flow to a record minimum July sea ice extent of the Arctic in 2020[J]. CRYOSPHERE,2022,16(3):1107-1123. |
| APA | Liang, Yu.,Bi, Haibo.,Huang, Haijun.,Lei, Ruibo.,Liang, Xi.,...&Wang, Yunhe.(2022).Contribution of warm and moist atmospheric flow to a record minimum July sea ice extent of the Arctic in 2020.CRYOSPHERE,16(3),1107-1123. |
| MLA | Liang, Yu,et al."Contribution of warm and moist atmospheric flow to a record minimum July sea ice extent of the Arctic in 2020".CRYOSPHERE 16.3(2022):1107-1123. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| tc-16-1107-2022.pdf（10392KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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