The circulation and salt stratification over the south branch of the Yangtze estuary
Bibliographic record
Abstract
Abstract The hydrodynamics of China’s Yangtze Estuary is very complicated, due to highly irregular bathymetry, large freshwater discharge from the Yangtze River, strong tidal currents, large salinity gradients and strong interaction between the river and sea waters. Oceanographic measurements were made over the lower part of the Yangtze Estuary (the South Branch of the Yangtze Estuary) to examine the circulation structure and intra-tidal variability of salinity. The least-squares fit to main harmonics was made to explore the sub-tidal circulation. The observed ADCP currents were decomposed into the along-channel and cross-channel velocity to examine the spatial and temporal variability of circulation in the region.The observed study in the 2005 wet season and the 2009 dry season in different channels showed that the tidal straining effect is a major forcing mechanism on salinity stratification and sub-tidal circulation of the Yangtze Estuary. The tidal straining induced circulation was found to be equally important as the classical gravitational circulation in the Yangtze Estuary. This played an important role in maintaining semi-diurnal periodic salinity stratification in the 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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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".