DOI: 10.1175/JCLI-D-17-0203.1
Scopus记录号: 2-s2.0-85041966016
论文题名: Local and external moisture sources for the Arctic warming over the Barents-Kara Seas
作者: Zhong L. ; Hua L. ; Luo D.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 5 起始页码: 1963
结束页码: 1982
语种: 英语
英文关键词: Arctic
; Blocking
; Hydrology
; North Atlantic Oscillation
; Sea ice
; Water vapor
Scopus关键词: Atmospheric pressure
; Hydrology
; Ice
; Infrared radiation
; Sea ice
; Water vapor
; Arctic
; Blocking
; External sources
; Moisture sources
; Moisture transport
; North Atlantic oscillations
; Relative contribution
; Sea ice melting
; Moisture
; atmospheric blocking
; atmospheric moisture
; evaporation
; hydrology
; Lagrangian analysis
; North Atlantic Oscillation
; numerical model
; sea ice
; warming
; water vapor
; Arctic
; Arctic Ocean
; Barents Sea
; Kara Sea
英文摘要: Water vapor is critical to Arctic sea ice loss and surface air warming, particularly in winter. Whether the local process or poleward transport from lower latitudes can explain the Arctic warming is still a controversial issue. In this work, a hydrological tool, a dynamical recycling model (DRM) based on time-backward Lagrangian moisture tracking, is applied to quantitatively evaluate the relative contributions of local evaporation and external sources to Barents-Kara Seas (BKS) moisture in winter during 1979-2015. On average, the local and external moistures explain 35.4% and 57.3% of BKS moisture, respectively. The BKS, Norwegian Sea, and midlatitude North Atlantic are the three major sources and show significant increasing trends of moisture contribution. The local moisture contribution correlates weakly to downward infrared radiation (IR) but significantly to sea ice variation, which suggests that the recent-decade increase of local moisture contribution is only a manifestation of sea ice melting. In contrast, the external moisture contribution significantly correlates to both downward IR and sea ice variation, thus suggesting that meridional moisture transport mainly explains the recent BKS warming. © 2018 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111654
Appears in Collections: 气候减缓与适应
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作者单位: Chinese Academy of Sciences Key Laboratory of Regional Climate-Environment for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Computational Geodynamics, University of Chinese Academy of Sciences, Beijing, China
Recommended Citation:
Zhong L.,Hua L.,Luo D.. Local and external moisture sources for the Arctic warming over the Barents-Kara Seas[J]. Journal of Climate,2018-01-01,31(5)