Impacts of stratospheric planetary wave in midspring on total ozone in northern hemisphere
Bibliographic record
Abstract
The NCEP/NCAR reanalysis data of April in the northern hemisphere from 1979 to 2003 were used to analyze the variations of stratospheric planetary wave,and its impacts on the distribution of total ozone were discussed together with TOMS total ozone data.The results indicate that wave 1 is generally stronger than wave 2 in April in middle-lower stratosphere,and there is a low pressure over the north of Eurasia while a high pressure lies on the north of North America(Eurasia Low-North America High pattern).The corresponding characteristics of total ozone distributions are that the high values of total ozone are in the region from northeast Asia to north Canada and the low values appear from northern Europe to Greenland.When wave 2 is stronger than normal,the vortex is located virtually over polar region(Polar Vortex pattern),where the total ozone is lower.Especially in 1997,wave 1 was the strongest in 25 years and wave 2 was strong too,so that the vortex was more closer to the north pole and at the same position there was a clear ozone hole.During some years when the north pole was controlled by high pressure(Polar High pattern),the high total ozone mostly appeared at the north pole region.
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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 | 0.001 |
| 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 | 0.001 | 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".