Internal characteristics of a bromide tracer zone during natural flow in the Borden aquifer, Ontario, Canada.
Bibliographic record
Abstract
A planned natural gradient bromide tracer experiment, over a distance of 100 m, is in progress in a forest area at Canadian Forces Base Borden, Ontario, to provide information for the design of a monitoring network for a subsequent experiment involving a release of a three-component chlorinated solvent DNAPL into the unconfined sand aquifer. Detailed three dimensional monitoring of the bromide over time, hydraulic conductivity measurements of cores, and groundwater velocity measurements all show variability of hydraulic conductivity and groundwater flux by less than a factor of three. This slight variability was sufficient to cause separation of the tracer zone into three persistent, distinct segments after a travel distance of only 10 m. Separation also occurred in three previous tracer experiments in a nearby, shallower portion of the Borden aquifer indicating the strong influence of very subtle hydraulic conductivity features on solute transport.
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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".