Ice core drilling at King Col, Mount Logan 2002
Bibliographic record
Abstract
An ice core of 220.52 m was drilled at King Col (60°35' 20 N, 140°36' 15W; 4135m), a saddle near Mount Logan (5959 m), the Canada's highest mountain, in order to better understand 1) anthropogenic impact on the Pacific sector of the Arctic, 2) decadal and interdecadal climate changes in the North Pacific, and 3) dynamical behavior of cold mountain glaciers. The thickness of the glacier was estimated by an ice-penetrating radar survey at five points and the drilling site was decided at the flattest surface of which depth was calculated as 222 m. The recovered ice cores showed the site was located at dry snow zone with a very limited amount of melt-freeze ice layers. Temperature of the borehole was -18.0 °C at 10 m-depth and -17.7 °C at 220.52 m. The Nye time scale suggested that the ice core covers approximately several hundreds years to a millennium record of past climate and atmospheric proxy signals, provided annual accumulation rates from 0.4 to 1.0 m a -1 in ice.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.009 | 0.002 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".