Effects of rainfall events on waste-rock surface-water conditions and CO2 effluxes across the surfaces of two waste-rock piles
Bibliographic record
Abstract
The influence of rainfall events on the surface-water conditions of waste rock and the resultant CO2 gas effluxes from waste-rock piles are of value in the development of a long-term management plan for these piles. However, data for the direct measurement of CO2 effluxes through field-scale waste-rock piles are lacking. This study investigated the influence of a short-term, multi-day (29 July to 5 August 2002) heavy rainfall event on waste-rock water conditions and CO2 effluxing from two large waste-rock piles at the Key Lake uranium mine in northern Saskatchewan. The study also investigated spatial and temporal variation in CO2 effluxes in these waste-rock piles over a 2-year period (summer 2000 – summer 2002). Results showed that the impact of a heavy rainfall event on surface-water conditions and CO2 effluxes from these waste-rock piles is of relatively short duration. Results also showed that the CO2 effluxes were relatively uniform, both spatially and temporally (average covariance (CV) is 28%–39%), over the 2-year test period. This information can provide an important tool in the development of a long-term management plan for mine waste-rock piles. Key words: CO2 efflux, waste-rock piles, rainfall events, unsaturated zone.
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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) | 0.000 | 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".