Sedimentary Records of Contaminant Inputs in Frobisher Bay, Nunavut (2017-2018)
Bibliographic record
Abstract
This dataset includes geochemical and contaminant data measured in surface sediments and sections of sediment cores collected from Koojesse Inlet and other locations in Frobisher Bay, Nunavut. Sediment cores and surface sediment were collected throughout Koojesse Inlet in 2017 by the Canada-Nunavut Geoscience Office aboard MV Nuliajuk vessel. Sediment cores were collected from inner and outer Frobisher Bay in 2018 by University of Manitoba researchers onboard the CCGS Amundsen icebreaker. Geochemical parameters measured in sediment core samples included radioisotopes (210Pb and 137Cs), carbon and nitrogen content, and stable isotopes (δ13C and δ15N). Contaminants measured in selected sediment sections included total mercury (THg), major and trace elements, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and per and polyfluoroalkyl substances (PFASs). This project is part of the Coastal Environmental Baseline Program under the Oceans Protection Plan of Fisheries and Oceans Canada.
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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 | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.013 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.013 | 0.012 |
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".