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Record W2149625097 · doi:10.1080/07055900.2013.774259

Improving Statistical Downscaling of General Circulation Models

2013· article· en· W2149625097 on OpenAlexaffvenue
Matthew Lee Titus, Jinyu Sheng, Richard J. Greatbatch, Ian Folkins

Bibliographic record

VenueATMOSPHERE-OCEAN · 2013
Typearticle
Languageen
FieldEnvironmental Science
TopicClimate variability and models
Canadian institutionsDalhousie UniversityMEG-3 (Canada)
Fundersnot available
KeywordsDownscalingClimatologyEnvironmental scienceStatistical modelLinear regressionPrincipal component analysisClimate changeGeneral Circulation ModelProjection (relational algebra)MeteorologyPrecipitationStatisticsMathematicsGeographyGeology

Abstract

fetched live from OpenAlex

Credible projections of future local climate change are in demand. One way to accomplish\nthis is to statistically downscale General Circulation Models (GCM’s). A new method for\nstatistical downscaling is proposed in which the seasonal cycle is first removed, a physically\nbased predictor selection process is employed and principal component regression\nis then used to train the regression. A regression model between daily maximum and minimum\ntemperature at Shearwater, NS, and NCEP principal components in the 1961-2000\nperiod is developed and validated and output from the CGCM3 is then used to make future\nprojections. Projections suggest Shearwater’s mean temperature will be five degrees\nwarmer by 2100.

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 categoriesInsufficient payload (model declined to judge)
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 score0.080
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.000

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 head0.015
GPT teacher head0.223
Teacher spread0.209 · 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.

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

Citations5
Published2013
Admission routes2
Has abstractyes

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