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The state of California current, 2000 – 2001 : a third straight La Niña year

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https://ir.library.oregonstate.edu/concern/articles/6395w874z

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  • This report is the eighth in a series that describe recent oceanographic observations within the California Current system, from Oregon to Baja California. The emphasis here is placed on the observations conducted concurrently by the CalCOFI (California Cooperative Oceanic Fisheries Investigations), IMECOCAL (Investigaciones Mexicanas de la COrriente de CALifornia), and GLOBEC-LTOP (GLOBal Ecosystems Long-Term Observation Program) programs from April 2000 to January 2001. The large-scale oceanic and atmospheric conditions over the tropical Pacific indicated a third straight La Niña year. Coastal conditions exhibited weaker than normal upwelling off northern Baja California and southern California through 2000 and early 2001. Measurements off Oregon, southern California, and Baja California denoted oceanographic conditions near the climatological norm. Likewise, zooplankton biomass decreased from the high levels observed in 1999 to nearly normal values, while cold-water species of seabirds did not increase off southern California. A return to more normal levels of the monitored features of the CCS does not yet support the idea of a climate regime shift.
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  • 42
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