Mechanism of destruction of transport barriers in geophysical jets with Rossby waves
نویسندگان
چکیده
منابع مشابه
Uncovering Transport Barriers in Geophysical Flows
Allshouse, Michael (University of Texas, Austin) Accounting for windage in the identification and classification of FTLE ridges Understanding the transport of contaminants on the surface of the ocean is aided by identifying regions of large Lagrangian deformation. Given that the FTLE field measures the local deformation, its ridges represent the locally maximum repelling structures in the flow....
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Transport and mixing properties of Rossby waves in shear flow are studied using tools from Hamiltonian chaos theory. The destruction of barriers to transport is studied analytically, by using the resonance overlap criterion and the concept of separatrix reconnection, and numerically by using PoincarC sections. Attention is restricted to the case of symmetric velocity profiles with a single maxi...
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Rossby waves are an important part of the ocean's response to changes in atmospheric stimuli, and provide a mechanism by which the west of ocean basins learns of changes in the east. In the past decade many papers have discussed their sea surface height signal in the altimetric record, showing that Rossby waves are common in all ocean basins and drawing attention to the discrepancy between obse...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2010
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.81.017202