Deepening of the nutricline and chlorophyll maximum in the Canada Basin interior, 2003–2009
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Physical and chemical data collected in the Canada Basin interior from 2003–2009 show that recent increases in both Ekman convergence and freshwater input, associated with sea ice retreat and melt, have affected the structure and dynamics of the upper ocean, and such changes accelerated from 2007–2009 when salt‐stratification below the seasonal mixed layer increased about 25%. This increased stratification further constrains vertical heat flux and the winter renewal of nutrients into the euphotic zone. One consequence of increased convergence is that both the depth of the nitracline (i.e. the depth where nitrate concentrations begin to increase from zero) and the depth of the chlorophyll maximum (which occurs slightly below the depth of the nitracline as here both nitrate and light are sufficient to allow primary production) have increased. Nitrate concentrations at the chlorophyll maximum depth have also recently decreased which suggests that the availability of light may play a progressively greater role in determining the depth at which primary production occurs. If these trends continue, assuming that the depth of the winter mixed layer does not deepen, such changes will negatively affect primary productivity as long as the Arctic Oscillation remains anticyclonic and freshwater continues to be stored in the Beaufort Gyre. These findings show that, under such conditions, the response of sea ice retreat in the basin interior is distinct and opposite to the response on adjacent continental shelves where shelf‐break upwelling will increase, bringing nitrate into the euphotic zone and enhancing production.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it