Statistical characterization of the diffuse attenuation coefficient over tropical corals
Why this work is in the frame
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Bibliographic record
Abstract
Remote-sensing of submerged features can help to monitor coral reef ecosystems by monitoring spectral signatures within the visible spectrum. A satellite or airborne image could be used to delineate those areas of coral stress requiring immediate attention. One limitation, however, to the accuracy of this technique is that the water column over a submerged coral reef modifies the signal received by the sensor. The authors report on a study in Fiji were measured profiles of the diffuse attenuation coefficient are used to better understand the properties of the water column over various substrates. Downwelling irradiance and upwelling radiance in SeaWiFS channels were collected over coral reefs, debris surface, sand channels, and blue water with depths far beyond the range of the 70 metre cable. Principal components analysis of vertical water column profiles reveals that irradiance values can be used to distinguish between different bottom types based on the magnitude of component loadings. The technique provides consistent output when discriminating between bottom types at various depths. These results may be used to better define algorithms and are encouraging with respect to water column correction for image interpretation.
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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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it