Acoustic effects of near-bottom soliton packets
Bibliographic record
Abstract
The winter 1997 Primer4 experiment was conducted on the shelfbreak and continental slope south of Cape Code in the Middle Atlantic Bight. Internal solitary waves were surveyed with rapid-sampling thermistor chains, current meters, and an upward looking ADCP. Using the available environmental data we have simulated the generation of these near-bottom solitary internal waves in this region using a forcing tidal velocity of 0.3 m/s to initiate the primitive equation Lamb model. The simulated soliton packets compare favorably in period and amplitude with the measured data taken in the winter 1997 Primer4 experiment. Previously, resonance effects leading to anomalous signal losses have been observed in numerous simulations of acoustic propagation through near-surface soliton packets. The objective of this work is to determine if similar resonance effects are caused by the interaction of the acoustic field with these near-bottom soliton packets. In contrast to our previous acoustic simulations, it was necessary to place the acoustic source and receivers above the thermocline for these near-bottom soliton packet studies. Simulation results will be presented that illustrate the similarities and differences between the acoustic effects produced by the near-surface and near-bottom soliton packets. [Work supported by ONR/NRL.]
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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".