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Record W2181306627

Information-based potential seasonal climate predictability

2012· article· en· W2181306627 on OpenAlexaff
Youmin Tang, D. Chen

Bibliographic record

VenueEGUGA · 2012
Typearticle
Languageen
FieldEnvironmental Science
TopicClimate variability and models
Canadian institutionsUniversity of Northern British Columbia
Fundersnot available
KeywordsPredictabilityClimatologyForcing (mathematics)Sea surface temperatureEnvironmental scienceForecast skillClimate modelEl Niño Southern OscillationMode (computer interface)MeteorologyClimate changeComputer scienceMathematicsStatisticsGeologyGeographyOceanography
DOInot available

Abstract

fetched live from OpenAlex

In this study, the potential predictability of the northern America (NA) surface air temperature was explored using information-based predictability framework and ENSEMBLE multiple model ensembles. The emphasis was put on the comparison between information-based and conventional SNR (signal-to noise ratio)-based potential predictability, and the optimal decomposition of predictable component using the method of maximizing the predictable information (or equivalent the maximum of SNR). It was found that the conventional SNR-based measure underestimates the potential predictability, in particular in these areas where the predictable signals are relatively weak. The most predictable components of the NA surface air temperature can be characterized by the interannual variability mode and the long term trend mode. The former is inherent to the tropical Pacific sea surface temperature (SST) forcing such as ENSO (El Nino and Southern Oscillation) whereas the latter is closely associated with the global warming. The amplitude of the two modes has geographical variations in different seasons. Furthermore, the possible physical mechanisms responsible for the two most predictable modes and the potential benefits for the improvement of actual prediction skill were discussed.

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation 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: none
Teacher disagreement score0.001
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.002
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.008
GPT teacher head0.214
Teacher spread0.205 · 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 source (direct Gemma or distilled Codex), 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
Published2012
Admission routes1
Has abstractyes

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