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Record W7132611222

Ice loads on port structures in the Canadian Arctic

2025· article· en· W7132611222 on OpenAlexvenueaboutno aff
Robert Frederking, Jeff L. Brown

Bibliographic record

VenueNPARC · 2025
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicArctic and Antarctic ice dynamics
Canadian institutionsnot available
Fundersnot available
KeywordsSea iceArctic ice packDrift iceAntarctic sea iceArcticSubmarine pipelineSea ice thicknessPort (circuit theory)
DOInot available

Abstract

fetched live from OpenAlex

The growth of communities and economic activity in the Canadian Arctic is resulting in development of new port facilities. Some guidance for these developments has been gained from observations of ice behavior and measurements of local ice forces at Nanisivik. The ice conditions at the site are first-year fast ice during the winter preceded by a 2-to-3-week freeze-up period. During the melt and summer seasons the ice conditions can be described as mobile pack ice, with occasional glacial ice inclusions. The combination of fast ice, a 3-m tide and the steel construction of the wharf leads to the formation of a zone of disturbed ice between the wharf and the first-year ice, complicating the application of existing guidance documents to ice force predictions. Global ice forces based on application of ISO 19906:19 Arctic offshore structures standard yielded an annual global load of 22 MN on a 23-m diameter cell and 75 MN on the 100-m-wide Nanisivik wharf. Extrapolating from the annual mean line load measured on a 0.54-m width, a global load of 10 MN on the 23-m diameter cell was determined. Ice load measurements on hydropower dams provide direction in interpreting ice pressure data over various scales on structures. Observations of ice conditions and measurements of ice loads at Nanisivik, together with dam experience, provide a basis for guidance on predicting ice loading on port structures in the Arctic.

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: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.023
Threshold uncertainty score0.169

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0020.003
Science and technology studies0.0030.001
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.001

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 head0.211
Teacher spread0.203 · 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
Published2025
Admission routes2
Has abstractyes

Explore more

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