中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋地质与环境重点实验室
Contribution of warm and moist atmospheric flow to a record minimum July sea ice extent of the Arctic in 2020

文献类型：期刊论文

作者Liang, Yu1,5,7; Bi, Haibo1,6,7; Huang, Haijun1,7; Lei, Ruibo2,5; Liang, Xi4; Cheng, Bin3; Wang, Yunhe1
刊名CRYOSPHERE
出版日期2022-03-31
卷号16期号:3页码:1107-1123
ISSN号1994-0416
DOI10.5194/tc-16-1107-2022
通讯作者Bi, Haibo(bhb@qdio.ac.cn) ; Huang, Haijun(hjhuang@qdio.ac.cn)
英文摘要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.
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
语种英语
出版者COPERNICUS GESELLSCHAFT MBH
WOS记录号WOS:000776044500001
源URL[http://ir.qdio.ac.cn/handle/337002/178606]  
专题海洋研究所_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.Zhejiang Univ, Technol & Equipment Engn Ctr Polar Observat, Zhoushan 316000, Peoples R China
3.Finnish Meteorol Inst, Polar Meteorol & Climatol, POB 33, Helsinki 00931, Finland
4.Natl Marine Environm Forecasting Ctr, Key Lab Res Marine Hazard Forecasting Ctr, Beijing 100081, Peoples R China
5.MNR, Key Lab Polar Sci, Polar Res Inst China, Shanghai 200136, Peoples R China
6.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
7.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China
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.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。