Oceanic dipoles in a surface quasi-geostrophic model
Oceanic dipoles in a surface quasi-geostrophic model
复制标题
表面准地转模型中的海洋偶极子
DOI:
10.1017/jfm.2023.87
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发表时间:
2023
影响因子:
3.7
通讯作者:
Crowe, M.N.
中科院分区:
文献类型:
--
作者:
Johnson, E.R.;Crowe, M.N.
Analysis of satellite altimetry and Argo float data leads Ni et al. (J. Geophys. Res., 125, 2020, e2020JC016479) to argue that mesoscale dipoles are widespread features of the global ocean having a relatively uniform three-structure that can lead to strong vertical exchanges. Almost all the features of the composite dipole they construct can be derived from a model for multipoles in the surface quasi-geostrophic equations for which we present a straightforward novel solution in terms of an explicit linear algebraic eigenvalue problem, allowing simple evaluation of the higher radial modes that appear to be present in the observations and suggesting that mass conservation may explain the observed frontogenetic velocities.
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