Seasonal beach morphology, shoreline migration, and the influence of mitigation structures on beach erosion in Boundary Bay, British Columbia, Canada
Bibliographic record
Abstract
Beach profiles constructed from elevation data were used to evaluate the seasonal\ncross-shore morphological changes along three transects in Boundary Bay, British\nColumbia, Canada. GPS/GIS data was utilized for the analysis of the seasonal migration\nof the upper shoreface at each transect and along the entire length of the shoreline. The\ndata was compared to the model of seasonal beach change that indicates winter beach\nerosion/retreat and summer beach accretion/progradation. The trends observed in\nBoundary Bay exhibited winter beach accretion/progradation and summer beach\nerosion/retreat and this was in contrast to the generalized model. The results may be\nattributed to the southerly orientation of the mouth of the bay. During winter, storms\narrive from the south and enter the bay directly and enhance erosion from the Point\nRoberts headland and increased longshore sediment drift. The northwesterly wind\ndirection in the summer results in reduced longshore sediment transport and less sediment\nentering the bay. There was no observable impact of the mitigation structures on the\nmorphology of the beach profiles
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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 | 0.000 | 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.006 | 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".