Estimation of air-sea carbon flux in the Western Arctic Ocean using in-situ and remotely sensed data
Bibliographic record
Abstract
Affected by global warming and rapid sea ice change, the Western Arctic Ocean is a strong potential carbon sink. In order to get a high resolution basin-scale estimate of the air-sea flux of CO 2 and carbon uptake in the Western Arctic Ocean from 180°E to 135°W, 65°N to 85°N, we applied an extrapolation method. Empirical relationship between marine partial pressure of carbon dioxide ( p CO 2 sw ), Sea Surface Temperature (SST) and salinity were derived from underway measurements collected during the 3 rd CHINARE, in August 2008. p CO 2 sw was computed from remotely sensed SST, and salinity produced by remotely sensed Colored Dissolved Organic Matter (CDOM). Air-sea CO 2 flux was calculated from the air-sea difference of p CO 2 and remotely sensed wind speed. Results showed that in August, 2008, the monthly CO 2 flux was highest in the Chukchi Sea, secondly in the Beaufort Sea and then in the Canada Basin. In August, the Western Arctic Ocean was a net atmospheric sink for CO 2 and carbon absorption was 4.8 TgC.
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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.
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".