FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2039454555> ?p ?o ?g. }

• W2039454555 endingPage "3744" @default.
• W2039454555 startingPage "3722" @default.
• W2039454555 abstract "Nonlinear motions of a shallow water barotropic vortex on a β plane differ substantially from the analogous linear motions. The nonlinear model described here, in which wavenumber 1–3 asymmetries interact with each other and the mean vortex, predicts that an initially completely cyclonic vortex will accelerate toward the NNW, reaching a speed of 2.5 m s−1 at 48 h. During the rest of the 240-h calculation, the speed varies by <0.5 m s−1 as the direction turns from NNW to NW. The vortex accelerations are in phase with temporal changes of vortex-relative angular momentum (LR). The turning of the track coincides with a transition of the wavenumber 1 asymmetry from a single dipole to a double dipole. The latter structure appears to be another orthogonal solution of the second-order radial structure equation for a neutral linear normal mode. The corresponding linear model, in which β forces only wavenumber 1, shows only the single dipole structure and straight NNW accelerating motion that reaches a speed of 9 m s−1 at 240 h. The slower motion in the nonlinear model stems from wave-induced changes in the axisymmetric vortex and vacillation between the orthogonal modal structures. A nonlinear calculation with zero initial LR on a β plane follows a curving path dictated by a barotropically unstable linear mode for the first 144 h. Subsequently, the double dipole structure for that mode appears as the track turns toward the NW and the speed accelerates from 1 to 2 m s−1. A spatially uniform geostrophic environmental current on an f plane causes vortex motion by advection and by propagation. The potential vorticity (PV) gradient due to the current acts much as β does. Although the PV gradient is typically 0.1 of that due to β, the induced propagation toward high potential vorticity is ½–¼ of that on a β plane because super-position of the vortex on the geopotential gradient amplifies the PV gradient's effect. In a quiescent environment on an f plane, initial asymmetries that project onto the normal modes induce long-lasting motion that retains about half its speed to 240 h. If the initial speed is ≥2 m s−1, vacillation between orthogonal modal structures may cause dramatic turns and accelerations of the vortex track." @default.
• W2039454555 created "2016-06-24" @default.
• W2039454555 creator A5000399138 @default.
• W2039454555 date "1994-12-01" @default.
• W2039454555 modified "2023-09-27" @default.
• W2039454555 title "Nonlinear Motion of a Shallow Water Barotropic Vortex" @default.
• W2039454555 doi "https://doi.org/10.1175/1520-0469(1994)051<3722:nmoasw>2.0.co;2" @default.
• W2039454555 hasPublicationYear "1994" @default.
• W2039454555 type Work @default.
• W2039454555 sameAs 2039454555 @default.
• W2039454555 citedByCount "23" @default.
• W2039454555 countsByYear W20394545552014 @default.
• W2039454555 countsByYear W20394545552017 @default.
• W2039454555 countsByYear W20394545552020 @default.
• W2039454555 crossrefType "journal-article" @default.
• W2039454555 hasAuthorship W2039454555A5000399138 @default.
• W2039454555 hasBestOaLocation W20394545551 @default.
• W2039454555 hasConcept C121130766 @default.
• W2039454555 hasConcept C121332964 @default.
• W2039454555 hasConcept C140820882 @default.
• W2039454555 hasConcept C155675718 @default.
• W2039454555 hasConcept C158622935 @default.
• W2039454555 hasConcept C173523689 @default.
• W2039454555 hasConcept C17825722 @default.
• W2039454555 hasConcept C2524010 @default.
• W2039454555 hasConcept C29712183 @default.
• W2039454555 hasConcept C33923547 @default.
• W2039454555 hasConcept C57879066 @default.
• W2039454555 hasConcept C62520636 @default.
• W2039454555 hasConcept C74650414 @default.
• W2039454555 hasConceptScore W2039454555C121130766 @default.
• W2039454555 hasConceptScore W2039454555C121332964 @default.
• W2039454555 hasConceptScore W2039454555C140820882 @default.
• W2039454555 hasConceptScore W2039454555C155675718 @default.
• W2039454555 hasConceptScore W2039454555C158622935 @default.
• W2039454555 hasConceptScore W2039454555C173523689 @default.
• W2039454555 hasConceptScore W2039454555C17825722 @default.
• W2039454555 hasConceptScore W2039454555C2524010 @default.
• W2039454555 hasConceptScore W2039454555C29712183 @default.
• W2039454555 hasConceptScore W2039454555C33923547 @default.
• W2039454555 hasConceptScore W2039454555C57879066 @default.
• W2039454555 hasConceptScore W2039454555C62520636 @default.
• W2039454555 hasConceptScore W2039454555C74650414 @default.
• W2039454555 hasIssue "24" @default.
• W2039454555 hasLocation W20394545551 @default.
• W2039454555 hasOpenAccess W2039454555 @default.
• W2039454555 hasPrimaryLocation W20394545551 @default.
• W2039454555 hasRelatedWork W1981031148 @default.
• W2039454555 hasRelatedWork W2003497297 @default.
• W2039454555 hasRelatedWork W2011991805 @default.
• W2039454555 hasRelatedWork W2039454555 @default.
• W2039454555 hasRelatedWork W2052177239 @default.
• W2039454555 hasRelatedWork W2101242705 @default.
• W2039454555 hasRelatedWork W2463011821 @default.
• W2039454555 hasRelatedWork W2889896485 @default.
• W2039454555 hasRelatedWork W2891740679 @default.
• W2039454555 hasRelatedWork W2910676247 @default.
• W2039454555 hasVolume "51" @default.
• W2039454555 isParatext "false" @default.
• W2039454555 isRetracted "false" @default.
• W2039454555 magId "2039454555" @default.
• W2039454555 workType "article" @default.