GSTDTAP  > 气候变化
DOI10.1002/2016GL071537
Drifter observations of submesoscale flow kinematics in the coastal ocean
Ohlmann, J. C.1; Molemaker, M. J.2; Baschek, B.3,4; Holt, B.5; Marmorino, G.6; Smith, G.6
2017
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2017
卷号44期号:1
文章类型Article
语种英语
国家USA; Germany
英文摘要

Fronts and eddies identified with aerial guidance are seeded with drifters to quantify submesoscale flow kinematics. The Lagrangian observations show mean divergence and vorticity values that can exceed 5 times the Coriolis frequency. Values are the largest observed in the field to date and represent an extreme departure from geostrophic dynamics. The study also quantifies errors and biases associated with Lagrangian observations of the underlying velocity strain tensor. The greatest error results from undersampling, even with a large number of drifters. A significant bias comes from inhomogeneous sampling of convergent regions that accumulate drifters within a few hours of deployment. The study demonstrates a Lagrangian sampling paradigm for targeted submesoscale structures over a broad range of scales and presents flow kinematic values associated with vertical velocities O(10)mh(-1) that can have profound implications on ocean biogeochemistry.


英文关键词submesoscale Lagrangian kinematics
领域气候变化
收录类别SCI-E
WOS记录号WOS:000393954900039
WOS关键词SOUTHERN CALIFORNIA BIGHT ; GULF-OF-MEXICO ; LAGRANGIAN OBSERVATIONS ; CURRENT SYSTEM ; PART I ; MESOSCALE ; SURFACE ; TRANSITION ; VORTICITY ; MOTION
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/27812
专题气候变化
作者单位1.Univ Calif Santa Barbara, Earth Res Inst, Santa Barbara, CA 93106 USA;
2.Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA;
3.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA;
4.Helmholtz Zentrum Geesthacht, Inst Coastal Res, Geesthacht, Germany;
5.CALTECH, Jet Prop Lab, Pasadena, CA USA;
6.Naval Res Lab, Washington, DC 20375 USA
推荐引用方式
GB/T 7714
Ohlmann, J. C.,Molemaker, M. J.,Baschek, B.,et al. Drifter observations of submesoscale flow kinematics in the coastal ocean[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(1).
APA Ohlmann, J. C.,Molemaker, M. J.,Baschek, B.,Holt, B.,Marmorino, G.,&Smith, G..(2017).Drifter observations of submesoscale flow kinematics in the coastal ocean.GEOPHYSICAL RESEARCH LETTERS,44(1).
MLA Ohlmann, J. C.,et al."Drifter observations of submesoscale flow kinematics in the coastal ocean".GEOPHYSICAL RESEARCH LETTERS 44.1(2017).
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