SPATIAL AND TEMPORAL VARIABILITY IN INTENSITY OF AEOLIAN TRANSPORT ON A BEACH AND FOREDUNE
Bibliographic record
Abstract
Abstract: This paper presents results from measurements of the intensity of sand transport by wind on the beach and stoss slope of a vegetated foredune over one day, at Greenwich Dunes, Prince Edward Island, Canada. Measurements of wind speed and direction were made with arrays of cup anemometers and 2-D sonic anemometers. Sediment transport intensity was measured at a height of 2-4 cm above the bed using 6 Sabatech omnidirectional saltation probes which count the impact of saltating grains on a piezoelectric crystal. Individual sensors appear to provide a consistent response to fluctuating sand transport. Where there is a considerable supply of dry sand the saltation system responds very rapidly (1-2 seconds) to fluctuations in wind speed- i.e. to wind gusts. Where sand supply from the surface is limited by moisture or by the presence of vegetation, mean transport rates are much lower and this reflects both a reduction in the instantaneous transport rate and in a transport system that becomes increasingly intermittent. While at this stage the saltation probes cannot provide a reliable estimate of the total sediment flux, they do provide a useful insight into the nature of the transport
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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 | 0.000 |
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".