Infra‐red FTS measurements of CH<sub>4</sub>, N<sub>2</sub>O, O<sub>3</sub>, HNO<sub>3</sub>, HCl, CFC‐11 and CFC‐12 from the MANTRA balloon campaign
Bibliographic record
Abstract
The Middle Atmosphere Nitrogen TRend Assessment (MANTRA) campaign is intended to address the question of whether possible changes in the mid‐latitude nitrogen budget can account for discrepancies between predicted and observed ozone loss at these latitudes. In addition, MANTRA seeks to establish consistency between old and new measurement techniques. We report here the results of infra‐red spectral measurements made with a high resolution Fourier Transform Spectrometer (FTS) during the August 1998 MANTRA flight. Vertical mixing ratio profiles of methane, nitrous oxide, ozone, nitric acid, hydrogen chloride, CFC‐11 and CFC‐12 are presented. The error estimates on the retrieved values are larger than typical for this type of measurement, due mostly to instrument problems that occurred during flight. In addition, the CFC values are larger than expected. Possible reasons for this are discussed.
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 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 | 0.000 | 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) | 0.001 | 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 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".