Abstract: Furthering understanding of Arctic marine geology through the United Nations Convention on the Law of the Sea
Bibliographic record
Abstract
In November 2003 Canada ratifi ed the United Nations Convention on the Law of the Sea (UNCLOS), which establishes under international law the concept of the 200 nautical mile exclusive economic zone (EEZ). Within the EEZ, coastal states exercise sovereignty for the purposes of exploration, exploitation, conservation, and management of natural resources of the water column, seabed, and subsoil. Beyond the EEZ, article 76 of the convention allows countries with wide continental margins to claim jurisdiction of the seabed and subsoil using criteria involving bathymetry, sediment thickness, and geological interpretation of the crust. Along the Atlantic and Arctic margins of Canada the territory potentially claimable under article 76 is equivalent to the area of the three prairie provinces. The Canadian claim will be based on existing and newly acquired geophysical data including singleand multi-beam bathymetry, spot soundings, gravity, magnetics, and seismic refl ection and refraction surveys. The government allocated $70 million to the Department of Fisheries and Oceans and to Natural Resources Canada in September 2004 to acquire and compile all the necessary data and to prepare the claim, which must be submitted by November 2013. Remoteness and the presence of sea ice pose signifi cant challenges to data acquisition along the Arctic margin, and little is known about the bathymetry, sediment thickness, and geology especially in comparison with the Atlantic margin. Fortuitously, potential Canadian and Danish claims parallel Lomonosov Ridge, which is a 1500–2000 m high by 200 km wide, fl at-topped, crustal feature extending 1800 km between the North American and Eurasian plates. This provides the impetus for a joint Canadian and Danish seismic refraction experiment, which will be conducted during April and May of 2006, to determine if Lomonosov Ridge can be used to extend the Canadian and Danish Arctic claims. The experiment, named Lorita-1 (Lomonosov Ridge Test of Appurtenance, phase 1), will also be a valuable step in building logistical support for future UNCLOS data collection programs in the Arctic.
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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 | 0.006 | 0.011 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.007 | 0.007 |
| Scholarly communication | 0.012 | 0.006 |
| Open science | 0.002 | 0.005 |
| Research integrity | 0.003 | 0.005 |
| Insufficient payload (model declined to judge) | 0.018 | 0.006 |
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".