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Di Lorenzo, E.; Schneider, N.; Cobb, K. M.; Franks, P. J. S.; Chhak, K.; Miller, A. J.; Mcwilliams, J. C.; Bograd, S. J.; Arango, H.; Curchitser, E.; Powell, T. M.; Riviere, Pascal. |
Decadal fluctuations in salinity, nutrients, chlorophyll, a variety of zooplankton taxa, and fish stocks in the Northeast Pacific are often poorly correlated with the most widely-used index of large- scale climate variability in the region - the Pacific Decadal Oscillation (PDO). We define a new pattern of climate change, the North Pacific Gyre Oscillation (NPGO) and show that its variability is significantly correlated with previously unexplained fluctuations of salinity, nutrients and chlorophyll. Fluctuations in the NPGO are driven by regional and basin-scale variations in wind-driven upwelling and horizontal advection - the fundamental processes controlling salinity and nutrient concentrations. Nutrient fluctuations drive concomitant changes in... |
Tipo: Text |
Palavras-chave: North Pacific Ocean climate; Salinity and nutrient variability; Upwelling and ecosystems. |
Ano: 2008 |
URL: https://archimer.ifremer.fr/doc/00483/59492/62351.pdf |
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