ALONG-STREAM AND TEMPORAL VARIABILITY IN THE WEST GREENLAND CURRENT SYSTEM
Bibliographic record
Abstract
The West Greenland Current System (WGCS) is a narrow boundary current which en- ters the Labrador Sea from the southeast and flows northward along the west Greenland coast. As part of the cyclonic circulation within the basin, it has recently received atten- tion due to its contribution to Labrador Sea Water (LSW), having been observed with surface drifters, satellite altimetry, and synoptic hydrographic measurements. Direct velocity measurements, especially in the winter months, have been sparse, and there are few previous papers that look at the continuity between the East and West Greenland Current Systems. Additionally, while evidence has been found for a correlation between Labrador Sea processes and North Atlantic Oscillation (NAO), it is still unclear whether this correlation extends to current strength and if so whether it is the same correlation found east of Greenland.\nThis study makes use of an acoustic Doppler current profiler (ADCP) mounted on the hull of the container ship Nuka Arctica. Every three weeks, the ship crosses between Denmark and Greenland via the Irminger Sea before rounding Cape Farewell and continuing north along the Greenland coast. Two ADCP systems have operated: a 150 kHz ADCP providing measurements to 400 m depth from 1999-2002, and a 75 kHz ADCP providing measurements to 800m depth from 2012-2016. During these periods, there were two years with a negative winter NAO and 3-4 years of wintertime measurements. Here, transport and velocities over 400 meters depth are compared at six current cross sections including one in the EGCS. Transport in the WGCS is found to be up to 1.6 Sv lower in the EGCS, indicating deflection off of Eirik Ridge. Winter transport is generally higher than summer with a more pronounced difference in the EGCS. Similarly, with a 6-18 month lag, a negative NAO phase corresponds to a lower transport in the EGCS. The relationship between the NAO and the WGCS is not clear.
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How this classification was reachedexpand
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 | 0.002 | 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 | 0.000 | 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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".