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Record W2067859161 · doi:10.1029/2009ja014092

Coexistence of turbulence and discrete modes in the solar wind

2009· article· en· W2067859161 on OpenAlexaff
S. Ghosh, David J. Thomson, W. H. Matthaeus, L. J. Lanzerotti

Bibliographic record

VenueJournal of Geophysical Research Atmospheres · 2009
Typearticle
Languageen
FieldPhysics and Astronomy
TopicSolar and Space Plasma Dynamics
Canadian institutionsQueen's University
Fundersnot available
KeywordsTurbulencePhysicsMagnetohydrodynamic turbulenceWavenumberWave turbulenceSolar windK-epsilon turbulence modelMode (computer interface)ComputationK-omega turbulence modelComputational physicsNonlinear systemStatistical physicsMechanicsClassical mechanicsMagnetohydrodynamicsOpticsPlasmaMathematicsComputer science

Abstract

fetched live from OpenAlex

Motivated by apparently contradictory reports of turbulence and discrete frequency wave‐like signals in the interplanetary medium, we employ numerical simulations to investigate the persistence of wave‐like spatial structures in the presence of strong low‐frequency turbulence. We seek to identify the time scales and other conditions that permit them to remain as identifiable structures in the turbulent medium. The wave‐like structures are initialized as discrete modes in wave number in a series of spectral method magnetohydrodynamic turbulence computations. We find that discrete modes can survive from one to many nonlinear times and that the main factor that determines their survivability is the separation from turbulence in parallel wave number. This corresponds to a separation in their corresponding Alfvén mode frequency.

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)0.001
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: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.209
Threshold uncertainty score0.295

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
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 head0.024
GPT teacher head0.326
Teacher spread0.302 · 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 designObservational
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

Citations18
Published2009
Admission routes1
Has abstractyes

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