Permafrost degradation under expanding thermokarst lakes, Yukon, Canada
Bibliographic record
Abstract
This poster presents patterns of permafrost degradation under lakes with eroding shorelines in Old Crow Flats, Northern Yukon. Old Crow Flats is an arctic peatland in the continuous permafrost zone. Two shorelines with contrasting rates of recession, bank morphology, and vegetation cover were studied in the field. Depth to permafrost beneath the lakes was measured by jet drilling. Permafrost degradation occurs under very shallow water. Snow drifting on the ice surface affects patterns of permafrost degradation despite minimal effect on mean annual lake bottom temperatures. This poster was presented at the IPY 2012: From Knowledge to Action Conference, held April 22-27, 2012, in Montreal, QC, Canada. http://www.ipy2012montreal.ca/index.php Citation of conference poster: Roy-Léveillée P, Burn CR. (2012) Talik geometry and permafrost degradation under thermokarst lakes in the Old Crow Flats, Yukon Territory, Canada. IPY 2012: From Knowledge to Action, April 22-27, 2012, Montreal, QC.
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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 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
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".