Mathematics – Logic
Scientific paper
Jun 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3412604c&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 12, CiteID L12604
Mathematics
Logic
9
Oceanography: Physical: Eastern Boundary Currents, Oceanography: Physical: Eddies And Mesoscale Processes, Oceanography: Biological And Chemical: Nutrients And Nutrient Cycling (0470, 1050), Oceanography: Biological And Chemical: Phytoplankton
Scientific paper
The offshore propagation of mesoscale eddies contributes significantly to expanding the area of high chlorophyll concentration beyond the coastal upwelling center as shown by satellite data of chlorophyll, wind stress, sea level anomalies between (1997-2003) off central Chile. Mesoscale eddies (~6.45 × 103 km2) formed near the coastal zone in spring-summer have mean seaward speeds of ~1.68 km d-1 and reach ~500 km offshore in winter. Chlorophyll concentrations along eddy paths are elevated by nutrient pumping and by nutrients and/or chlorophyll transported from the coastal zone. Eddies make up >50% of the winter (weak upwelling) chlorophyll peak in the coastal transition zone. Coupling between eddies and upwelling extends central Chile's high productivity area offshore and prolongs it towards winter.
Correa-Ramirez Marco A.
Hormazabal Samuel
Yuras Gabriel
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