Trapped in the ice: the formation of liquid water layers within lake ice and the effect on phytoplankton communities
Bibliographic record
Abstract
Winter lake ice conditions are undergoing rapid changes because of alterations in global and regional hydroclimatic conditions. The traditional understanding of lake ice growth and evolution through a winter period is the downward progression of ice until air temperatures rise and melt, and breakup ensues. A unique meteorological condition of substantial mid-winter warming in the foothills of the Canadian Rockies allowed for the identification of a phenomenon where a liquid water layer was trapped between ice layers near the surface of a lake. Phytoplankton analysis identified that the interstitial water layer had a bloom of motile phytoplankton belonging to the order Chlamydomonadales . Stable isotopes suggest the upward movement of pelagic water in combination with landscape runoff contributed to the formation of the interstitial water layer. This study provides new insights and illustrates the complexities involved in understanding the physicochemical and biological mechanisms involved in shaping the winter ecology, as well as subsequent ice-free periods, of lakes under a changing climate.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| 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".