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Record W4400365049 · doi:10.5194/ems2024-429

Characterizing snow seasons through the application of a new Multivariate Snow Index 

2024· preprint· en· W4400365049 on OpenAlexaff
Anna Albalat, Laura Trapero, Marc Lemus‐Canovas, Marc Pons

Bibliographic record

Venuenot available
Typepreprint
Languageen
FieldEarth and Planetary Sciences
TopicCryospheric studies and observations
Canadian institutionsUniversity of Saskatchewan
Fundersnot available
KeywordsSnowMultivariate statisticsIndex (typography)Environmental scienceMultivariate analysisPhysical geographyClimatologyMeteorologyGeographyStatisticsMathematicsComputer scienceGeology

Abstract

fetched live from OpenAlex

The European mountain bioregion are potentially vulnerable to the effects of climate change, both from an ecological and a socio-economic perspective. At the end of the 21st century, the level of greenhouse gases will play a fundamental role in emission scenarios and temperature increases. In recent decades, the snow depth in the European mountain regions like the Pyrenees has tended to decrease due to a rise in average temperature and precipitation variability. Several sectors, such as snow tourism and hydroelectric power generation, have been affected by this changing snow trends. In order to follow the winter snow seasons, a multivariate snow index (MSI) has been proposed to characterize the climatic variability of the snowpack in time and space, with the aim of detecting extreme changes. This new index consists in the objective characterization of the snowdepth anomaly and is based on high/low quantiles of daily maximum snow height distributions to characterise the seasons in terms of surplus or scarcity. This approximation is more suitable for making comparisons between regions and detecting variations in climatic extremes and could be applied to snow data sets from any region, at different spatial scales and for both the present and future climate. The analysis of extreme trends in duration and intensity helps to identify areas where the decrease in these parameters are more relevant and statistically significant. In this sense the proposed indicators will complement the classical snow indicators that are currently monitored, helping to provide a better regional characterization of the temporal evolution of the snowdepth.

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)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
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 head0.055
GPT teacher head0.283
Teacher spread0.228 · 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 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

Citations0
Published2024
Admission routes1
Has abstractyes

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