Radiocarbon Content of Dissolved Carbon Dioxide and Methane in Cambridge Bay, Canada (2022)
Bibliographic record
Abstract
A watershed in the coastal Canadian Arctic was sampled along a lake to bay transect for the radiocarbon (Carbon-14) content of dissolved carbon dioxide (CO2) and methane (CH4) to determine the age of carbon being released during the spring thaw. The field campaign was conducted from June 17 to 29 2022 out of the Canadian High Arctic Research Station (CHARS) in Cambridge Bay, Nunavut, Canada. Gas samples were collected via a custom-built vacuum-enhanced membrane contactor extraction system and transported back to the home lab. Bulk gas samples were processed on a vacuum line at the University of Rochester to isolate CH4 and CO2 fractions following procedures detailed in Sparrow and Kessler (2017). These fractions were then graphitized and analyzed at the National Ocean Sciences Accelerator Mass Spectrometry Facility (NOSAMS) for their radiocarbon content. Field sampling was carried out by researchers at the Woods Hole Oceanographic Institution (WHOI).
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| 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 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".