Mapping the Seasonal Variations of Chlorophyll Concentrations in the Arabian Gulf and the Gulf of Oman Using MODIS Satellite Data
Bibliographic record
Abstract
The Arabian Gulf is a semi-enclosed large water body that experiences seasonal variations and reversal of its water currents’ flow circulation. The waters of the Arabian Gulf and the Gulf of Oman are characterized by high primary productivity and strong phytoplankton blooms at different times of the year. This research uses MODIS/AQUA chlorophyll concentrations of the two gulfs, along with water- and air-current patterns, to identify the factors and mechanisms that regulate the variations of these chlorophyll concentrations. The study's major findings are that observed chlorophyll concentrations are strongly correlated with wind and water current movement on both gulfs. Further, chlorophyll concentrations in the Arabian Gulf begin to increase in August and reach a peak in December as a result of the upwelling of bottom water currents driven by the north- to north-westerly wind currents, or summer shamals, from June through August. In the Gulf of Oman and the north-eastern Arabian Sea, by contrast, chlorop...
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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) | 0.000 | 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".