| DOI: | 10.1002/2016GL069632
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| 论文题名: | Sea ice drift and deformation in the coastal boundary zone |
| 作者: | Oikkonen A.; Haapala J.; Lensu M.; Karvonen J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8529
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| EISSN: | 1944-8260
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| 出版年: | 2016
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| 卷: | 43, 期:19 | | 起始页码: | 10303
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| 结束页码: | 10310
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| 语种: | 英语
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| 英文关键词: | coastal radar
; power law scaling
; sea ice deformation
; temperature dependency
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| Scopus关键词: | Atmospheric temperature
; Deformation
; Lattice vibrations
; Ocean currents
; Radar
; Sea ice
; Air temperature
; Coastal radars
; Deformation rates
; Drift velocities
; Power law scalings
; Sea ice deformations
; Short time scale
; Temperature dependencies
; Ice
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| 英文摘要: | Small-scale sea ice deformation was studied in the coastal boundary zone (CBZ). Sequences of coastal radar images from the northern Baltic Sea (13 February to 13 May 2011) were used and trajectories of identifiable objects calculated. Average drift velocities in CBZ are small (<0.01 m/s), and events of high drift speeds are short and local. Deformations follow power law scaling but with an exponent of greater magnitude than in the Arctic. We discovered a connection between air temperature and sea ice deformation on a short time scale. During warm days, the mean deformation rate was significantly higher in all length scales than during cold days. This cannot be explained by changes in ice thickness or concentration, which suggests that the ice pack strength responds to air temperature faster than previously assumed. However, we cannot quantify how much this response is enhanced by lower ice thickness compared to the Arctic. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992382799&doi=10.1002%2f2016GL069632&partnerID=40&md5=9c0fadd7561f24a3974874f0d3701a56
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9492
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| 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: | Finnish Meteorological Institute, Helsinki, Finland
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| Recommended Citation: | |
Oikkonen A.,Haapala J.,Lensu M.,et al. Sea ice drift and deformation in the coastal boundary zone[J]. Geophysical Research Letters,2016-01-01,43(19).
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