Stability analysis of a deep hole in the east channel of the Mackenzie Delta, Northwest Territories
Bibliographic record
Abstract
Due to the discovery of vast quantities of hydrocarbon reserves in the late 1960s, exploration of the Mackenzie Delta led to the detection of several anomalous deep holes. The proposed pipeline from the Mackenzie Delta-Beaufort Sea region to Alberta has renewed interest in studying the stability of these holes. Environment Canada commissioned a detailed measurement of the 3D flow velocities using an ADCP in a benchmarked region of the East Channel. In this investigation, a 3D CFD package was employed to model the study reach using the 'k'-[epsilon] turbulence model with wall functions. The main goal was to study flow velocity and bed shear stress distributions during various flow scenarios to ultimately provide an initial assessment of the scour hole stability. The CFD package was capable of simulating the complex 3D flow reasonably well. Results indicated that erosion and deposition were key processes during open-water and ice-covered flow conditions respectively.
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| 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".