Bibliographic record
Abstract
In pipelines, telluric currents are responsible for variations in pipe-to-soil potentials (PSP) that interfere with pipeline surveys and might contribute to pipeline corrosion. This chapter provides a review of the literature on pipeline-telluric interference. It explains the geomagnetic sources of telluric activity, the impacts of earth's deep conductivity structures, pipeline's response to telluric electric fields and the methodology for assessing telluric effects, and mitigation/compensation of telluric effects. The geomagnetic field variations that produce telluric activity have their origin with processes on the Sun. The telluric electric fields produced by geomagnetic field variations will drive telluric currents along a pipeline, as well as in the ground. The size of telluric PSP variations produced during geomagnetic disturbance depends on the amplitude of the geomagnetic field variations, the conductivity structure of the earth, and the pipeline response. The chapter examines the knowledge gaps and open questions about telluric effects.
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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) | 0.027 | 0.018 |
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; both teacher heads agree on what is shown here.
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".