globalchange  > 科学计划与规划
DOI: 10.1002/2016GL069799
论文题名:
Persistent artifacts in the NSIDC ice motion data set and their implications for analysis
作者: Szanyi S.; Lukovich J.V.; Barber D.G.; Haller G.
刊名: Geophysical Research Letters
ISSN: 0094-8459
EISSN: 1944-8190
出版年: 2016
卷: 43, 期:20
起始页码: 10800
结束页码: 10807
语种: 英语
英文关键词: Eulerian and Lagrangian indicators ; MYI ice extent ; sea ice drift and deformation
Scopus关键词: Lagrange multipliers ; Ocean currents ; Sea ice ; Ice velocity ; Lagrangian ; Multi-year ices ; MYI ice extent ; Numerical experiments ; Sea ice motion ; Sea-ice drift ; Snow and ice ; Ice
英文摘要: In this study we evaluate weekly Equal-Area Scalable Earth Grid (EASE-Grid) sea ice velocities released by the National Snow and Ice Data Centre (NSIDC). We identify persistent Eulerian and Lagrangian features that arise solely as an artifact of the method used in the incorporation of buoy data. This, in turn, significantly impacts calculation of sea ice motion gradients, including divergence, convergence, and shear. Our numerical experiments and comparison with observations further demonstrate the impact of these artificial features on climatological assessments, including age-of-ice studies. In particular, we find that age-of-ice studies using this data set significantly underestimate multiyear ice extent by an average of 0.8 × 106 km2 in the month of March. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995598438&doi=10.1002%2f2016GL069799&partnerID=40&md5=a183e113528e6c9e8f8d3794e8cc375e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9422
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: Institute for Mechanical Systems, ETH Zürich, Zürich, Switzerland

Recommended Citation:
Szanyi S.,Lukovich J.V.,Barber D.G.,et al. Persistent artifacts in the NSIDC ice motion data set and their implications for analysis[J]. Geophysical Research Letters,2016-01-01,43(20).
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