International Year of Planet Earth 5. Applications of Seafloor Mapping on the Canadian Atlantic Continental Shelf
Bibliographic record
Abstract
Canada’s final mapping frontier is its offshore territory. Compared to Canada’s landmass, only a limited portion of Canada’s seafloor has been mapped using the modern technology of multi-beam sonar. Where this high-resolution mapping technique has been applied on Canada’s Atlantic continental margin, insight has been gained into the studies of seafloor habitat mapping, Quaternary history and sea-level change, sediment bedforms and dynamics, and seafloor conditions for in-stream tidal power. Seafloor habitat mapping in Canada provides the knowledge base to effectively manage offshore fisheries, evaluate marine protected areas, minimize the environmental impact of offshore development, and resolve seafloor-use conflicts. Multibeam sonar mapping has revealed a complex glacial landsystem developed on the Canadian Atlantic continental shelf and supports the concept of the late glacial maximum reaching the shelf edge. The application of multibeam sonar technology offers unprecedented images of bedform geomorphology and this knowledge is crucial to understanding sediment mobility and its effect on seafloor habitat, engineering, and infrastructure. To minimize the risk to engineering infrastructure on the seabed, planning of tidal-energy developments in regions of large tidal range requires detailed information about the water depth, seafloor substrate and sediment mobility, and long-term seabed change garnered using multibeam sonar mapping techniques. SOMMAIRE L’ultime frontiere de la cartographie du Canada est son territoire extracotier. Par rapport a son territoire continental, seule une faible portion du territoire extracotier canadien a ete cartographie par la technique moderne d’imagerie sonar multifaisceaux. La ou cette technique de cartographie de haute resolution a ete utilisee sur la marge continentale canadienne atlantique, on a pu faire des progres dans l’etude de cartographie d’habitat du fond marin, de l’histoire quaternaire des fluctuations du niveau de la mer, de la morphologie des couches et de la dynamique sedimentaires, ainsi que des caracteristiques du fond marin en vue de l’installation de centrales maremotrices. La cartographie d’habitat du fond marin permet de constituer une base de connaissances necessaires pour gerer efficacement la peche hauturiere, etablir la valeur des zones marines protegees, minimiser les incidences environ-nementales des activites de mise en valeur extracotieres, et resoudre les conflits d’utilisation des fonds marins. La cartographie par imagerie sonar multifaisceaux a montre qu’un systeme complexe de terres emergees s’est developpe sur le plateau continental atlantique du Canada et qui correspond au concept d’un maximum glaciaire ayant atteint la limite du plateau continental. L’utilisation de la technologie sonar multifaisceaux permet d’obtenir des images sans precedents de la morphologie des depots, et ces connaissances sont cruciales pour comprendre la mobilite des sediments et les repercussions sur l’habitat du fond marin, les amenagements et les infrastructures. Dans le but de minimiser les risques sur les infrastructures installees sur le fond marin, la planification d’installations maremotrices en zones de marees a grandes variations exige des informations detaillees sur la profondeur d’eau, la nature du fond marin et la mobilite des sediments, ainsi que sur les changements a longs termes obtenues par l’utilisation de technique de cartographie sonar multifaisceaux.
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How this classification was reachedexpand
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) | 0.002 | 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 teacher head, 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".