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Record W4246737744 · doi:10.2495/afm06045

Nonlinear dynamics of Rossby waves in a western boundary current

2006· article· en· W4246737744 on OpenAlexaff
L. J. Campbell

Bibliographic record

VenueWIT transactions on engineering sciences · 2006
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicOceanographic and Atmospheric Processes
Canadian institutionsCarleton University
Fundersnot available
KeywordsRossby waveNonlinear systemMechanicsBoundary layerPhysicsShear flowFlow (mathematics)Wave propagationAmplitudeCritical speedGeologyClassical mechanicsOpticsAcousticsAtmospheric sciences

Abstract

fetched live from OpenAlex

This paper examines the nonlinear dynamics of a Rossby wave propagating longitudinally in a north-south shear flow. The flow configuration is an idealized model for a western boundary current in an ocean basin. It is assumed that there is a critical layer in the flow, where the shear flow speed is the same as the wave phase speed. The nonlinear critical-layer evolution of the wave depends on the direction of propagation of the wave. Numerical simulations show that an eastwardpropagating wave incident on the critical layer from the west is absorbed by the mean flow at early times. This is the same situation that is known to occur for small-amplitude waves, according to the linear theory. At later times, however, nonlinear waves may be reflected from the critical layer. In contrast, a westwardpropagating wave incident on the critical layer from the east passes through largely unaffected. An approximate analytic solution of the linearized equations is also presented to give further insight into the evolution of the critical layer.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.070
Threshold uncertainty score0.381

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.006
GPT teacher head0.198
Teacher spread0.192 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2006
Admission routes1
Has abstractyes

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