Stochastic Geometric Models with Non-stationary Spatial Correlations in Lagrangian Fluid Flows.
Stochastic Geometric Models with Non-stationary Spatial Correlations in Lagrangian Fluid Flows.
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DOI:
10.1007/s00332-017-9431-0
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发表时间:
2018
影响因子:
3
通讯作者:
Holm DD
中科院分区:
文献类型:
--
作者:
Gay-Balmaz F;Holm DD
Inspired by spatiotemporal observations from satellites of the trajectories of objects drifting near the surface of the ocean in the National Oceanic and Atmospheric Administration’s “Global Drifter Program”, this paper develops data-driven stochastic models of geophysical fluid dynamics (GFD) with non-stationary spatial correlations representing the dynamical behaviour of oceanic currents. Three models are considered. Model 1 from Holm (Proc R Soc A 471:20140963,) is reviewed, in which the spatial correlations are time independent. Two new models, called Model 2 and Model 3, introduce two different symmetry breaking mechanisms by which the spatial correlations may be advected by the flow. These models are derived using reduction by symmetry of stochastic variational principles, leading to stochastic Hamiltonian systems, whose momentum maps, conservation laws and Lie–Poisson bracket structures are used in developing the new stochastic Hamiltonian models of GFD.
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影响因子:
1.3
作者:
SCHAUMLOFFEL, KU
通讯作者:
SCHAUMLOFFEL, KU
DOI:
10.1098/rspa.2017.0388
发表时间:
2017-09
期刊:
Proceedings. Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Cotter CJ;Gottwald GA;Holm DD
通讯作者:
Holm DD
DOI:
10.1098/rspa.2014.0963
发表时间:
2015-04-08
期刊:
Proceedings. Mathematical, physical, and engineering sciences
影响因子:
--
作者:
Holm DD
通讯作者:
Holm DD
影响因子:
2.1
作者:
Bou-Rabee, Nawaf;Owhadi, Houman
通讯作者:
Owhadi, Houman
影响因子:
8.6
作者:
KRAICHNAN, RH
通讯作者:
KRAICHNAN, RH