Construction of an ionosonde station in Xiamen and preliminary observations
Bibliographic record
Abstract
A new ionosonde station is constructed in Xiamen and preliminary observation are briefly introduced.At this station the Canada Advanced Digitial Ionosonde (CADI) is selected as the main equipment,and a set of folded dipole antennas and a pairs folded dipole are used as transmit and received antennas,respectively.With the internet and a special net system of CMA,the observed data is transfered to the National Center for Spaceweather in Beijing very quickly and the equipment is able to be controlled far away.By using observed data at this station during August,2008,we found that the f_oF2 has a pronounced daily variation,and it usually maximizes at 14～16LT with an amplitude of 5～15MHz and minimizes at 4～6LT with an amplitude of 4 MHz.The IRI2007 seems to be able to reproduce the observed medium f_oF2,but it fails to forecast the daily f_oF2 due to the day to day variability of ionosphere in Xiamen.
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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 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 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".