Aeolian processes and landforms in glaciofluvial environments of southeastern Baffin Island, N.W.T, Canada
Bibliographic record
Abstract
The arctic proglacial sandur is one member in the global variation of aeolian processes and forms for which a general model is not yet available, although idealized models applicable to subtropical and temperate environments have been developed by a number of workers. The environmental control which clearly distinguishes the proglacial setting from others relates to the seasonal influence of moisture as water, ice and snow. Large quantities of glacial meltwater effectively submerge much of the sandur surface during the summer, while throughout the remainder of the year, snow cover and interstitial ice can effectively stop aeolian erosion and transport. However, violent sand storms do occur on the sandurs of Baffin Island during particularly dry, cold winters. The source of sediment for winter transport may be provided by (a) sandur sediments which are progressively dried by evaporation and sublimation and (b) the abrasion of the frozen sandur surface by the impact of other saltating grains. As typical of other sandurs on Baffin Island, extensive aeolian deposits flank the Weasel River sandur in Pangnirtung Pass and the Maktak sandur on eastern Cumberland Peninsula. These include sand sheets, climbing dunes, sand drifts and vegetated accumulations. Topography, surface roughness and vegetation are strong controls over the form of these deposits and as a result, they clearly resemble many of the aeolian deposits described from other warmer environments. Unlike the deflation of the sandur itself which is strongly influenced by seasonal adjustments in moisture, the adjacent aeolian deposits are relatively dry throughout the summer and bare of snow in the winter, and therefore, are subject to reworking year round.
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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 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".