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Record W7133081745

Investigating Climate Characteristics And Their Influence On Heat Flow Through Temperate Region Lake Ice

2023· dissertation· W7133081745 on OpenAlexfundaboutno aff
Laura Alejandra Alvarez Salinas

Bibliographic record

VenueTSpace · 2023
Typedissertation
Language
FieldEarth and Planetary Sciences
TopicArctic and Antarctic ice dynamics
Canadian institutionsnot available
FundersUniversity of Toronto MississaugaUniversity of Toronto
KeywordsSlushArctic ice packSea iceCryosphereIce streamTemperate climateAntarctic sea iceArcticMelt pond
DOInot available

Abstract

fetched live from OpenAlex

This study uses in situ data to determine the heat flow through temperate region lake ice from 2017 to 2022. The study sites, MacDonald Lake and Clear Lake are located in Central Ontario and represent typical lakes in the region. Climate and ice observations were recorded weekly, while ice decay/growth was determined using a Shallow Water Ice Profiler and manual measurements. Results found that there was an increase in slushing events from 2018 to 2022. When slush was present on ice, the temperature gradient through the ice was nonexistent – resulting in an isothermal ice column and no heat flow. Ice thickness and temperatures at the ice-atmosphere interface were the main drivers of heat loss, most notably a maximum heat loss of 0.5 Wm-2, showing less heat loss than through Arctic ice. Finally, there was local-scale variation throughout climate and ice observations, driven by differing site conditions and snow redistribution.

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)0.000
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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.231
Threshold uncertainty score0.458

Distilled classifier scores by category (both heads)

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 communication0.0010.000
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 head0.024
GPT teacher head0.271
Teacher spread0.247 · 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
Published2023
Admission routes2
Has abstractyes

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