ABSTRACT SATELLITE GPS MEASUREMENTS OF LANDFAST ICE DISPLACEMENTS IN THE CANADIAN BEAUFORT DURING THE
Bibliographic record
Abstract
Three GPS (Global Positioning System) beacons were placed on the landfast ice cover of the Southeastern Beaufort Sea in mid-February, 2003. Changes in the positions of these beacons, roughly 35 km offshore of Richards Island and the Tuktoyaktuk Peninsula, were deduced from data relayed through the System Argos satellite network.This data acquisition program was carried out for Devon Canada for input to a planned drilling program. Position data with sufficient continuity from two of the three beacons were used to document landfast ice movements at both the western and eastern ends of the area of interest. Consistent, but less detailed data, were acquired at the third, central, beacon site. The results showed capabilities forresolving movements with as small as 2m in both the north-south and east-west directions on time scales of 6 to 12 hours. All detected movements were limited to a period in March and involved a single primarily southward, ice displacement event, approximately 10 m in magnitude. Smaller (2-5m) eastward components of this displacement dissipated over a, roughly, week-long period immediately following the event. Satellite imagery and ice velocity data from mobile, more offshore, pack ice, allowed identification of the causal source of the displacements.
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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 | 0.002 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".