Representation of Coastal Upwelling and Environmental Interactions in the Southern Benguela in Satellite Era Reanalysis
Bibliographic record
Abstract
The ability of ocean and atmosphere reanalysis products to represent coastal upwelling in the southern Benguela (28°-36°S, 14°-20°E) is studied in the period 1980-2008. Mean maps, depth sections and seasonal cycle are analyzed for ocean color, sea surface temperature (SST), vertical velocity, winds and ocean currents in the zone. The paper first evaluates coastal winds and cross-shelf gradients of temperature in a variety of products; then provides an analysis of inter-relationships among variables averaged in the St Helena Bay sub-area. The 30km Coupled Forecast System reanalysis resolves the cool strip of SST with a 1℃~2℃ warm bias, while subsurface zonal overturning and a longshore current jet are featured in the 50km Simple Ocean Data Assimilation reanalysis. Mean coastal upwelling rates of 1-2 m/day are consistent with observations. The expected links are found between the annual cycle of meridional wind stress and longshore currents, and between uplift, temperature and salinity. A new finding is a connection between the zonal wind stress and chlorophyll anomalies (-35.86 mg m -3 /N m -2 ). When the subtropical anticyclone is located south-west of Africa, offshore winds prevail and phytoplankton blooms in the southern Benguela.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 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 | 0.001 |
| 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 teacher head, 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".