DOI: 10.1002/2016GL069333
论文题名: Contributions of growth and deformation to monthly variability in sea ice thickness north of the coasts of Greenland and the Canadian Arctic Archipelago
作者: Kwok R. ; Cunningham G.F.
刊名: Geophysical Research Letters
ISSN: 0094-8779
EISSN: 1944-8510
出版年: 2016
卷: 43, 期: 15 起始页码: 8097
结束页码: 8105
语种: 英语
英文关键词: Arctic Ocean
; deformation
; growth
; sea ice
Scopus关键词: Deformation
; Growth (materials)
; Sea ice
; Thermodynamics
; Thickness control
; Arctic ocean
; Canadian Arctic Archipelago
; Coupled analysis
; Ice deformation
; Redistribution process
; Regional variability
; Sea-ice thickness
; Seasonal changes
; Ice
英文摘要: Regional variability in monthly CryoSat-2 sea ice thickness is partitioned into contributions from dynamics and thermodynamics using ice deformation calculated from large-scale ice drift. For five winters (December to April, 2011–2015), over a region of persistent convergence north of the coasts of Greenland and the Canadian Arctic Archipelago, deformation explains ~34% of the overall variance (up to 69% in 2014/2015) in monthly thickness changes. Approximately 42–56% (or ~ 0.6 m) of the seasonal changes in mean regional ice thickness can be attributed to divergence and shear. The estimated area-averaged growth of 0.12 ± 0.03 m/month compares favorably with measurements from ice mass balance buoys. Examination of the time-variable thickness distributions shows areas covered by ice < 3 m are reduced, while areas of thicker ice (>3 m) increased. Albeit at fairly coarse resolution, this coupled analysis of thickness changes and deformation offered a first look at the character of the regional thickness redistribution process. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982899104&doi=10.1002%2f2016GL069333&partnerID=40&md5=3631bff02e64c7c0f82fb476d6c78cff
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9742
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Kwok R.,Cunningham G.F.. Contributions of growth and deformation to monthly variability in sea ice thickness north of the coasts of Greenland and the Canadian Arctic Archipelago[J]. Geophysical Research Letters,2016-01-01,43(15).