Analysis of the variability of the ocean currents in the Coast of Bays area
Bibliographic record
Abstract
While of importance for processes such as transport of particles to and from aquaculture sites, little has been done to study the ocean current regime to support the aquaculture activities in the Coast of Bays, an area of the south coast of Newfoundland. To complete this gap and to understand the nearshore water circulation, Acoustic Doppler Current Profilers (ADCPs) were used to measure ocean currents in the Coast of Bays between 2009 and 2014. This work describes statistics of measured water currents and results of tidal analyses (sea level and ocean currents). The analyses were performed on two layers within the water column, namely the upper 0-20 m depth and the layer below 20 m.Significant spatial and temporal variability of the currents was observed. Low median speeds were found in sheltered coves and higher median speed in constricted areas such as those around sills and those within narrow channels. The maximum recorded current speed at each station was generally five to ten times larger than its median speed. In the vertical, the current speed near the surface was generally higher than that at depth with median speed in the upper 20 m being more than 1.3 times that at depths below 20 m. Median current speed tended to be slightly higher in the fall compared to other seasons. The analysis of the monthly variability of the current speed shows the highest maximum current speeds happening in summer or fall months. Tidal contribution to the variance of the sea level was high (~84%) while that of the vertically averaged currents was very low (~10%) except in the upper Bay d’Espoir where it was around 25%. This suggests that in addition to the tides, other and more important forcing drive the coastal circulation in the Coast of Bays region.This information serves as a baseline for ocean current conditions and for understanding the role of tides in driving the water circulation in the area. It also helps in assessing the potential connection among aquaculture sites and helps in the development of regulatory measures (e.g. Bay Management Areas) to ensure the sustainability of aquaculture activities in Newfoundland and Labrador.
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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 | 0.001 |
| 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) | 0.000 | 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 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".