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The state of California current, 2001 – 2002 : will the Californa current system keep its cool, or is El Niño coming?

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Title The state of California current, 2001 – 2002 : will the Californa current system keep its cool, or is El Niño coming?
Names Schwing, Franklin B. (creator)
Gaxiola-Castro, Gilberto (creator)
Goméz-Valdéz, José (creator)
Kosro, P. Michael, 1951- (creator)
Mantyla, Arnold W. (creator)
Smith, Robert L. (Robert Lloyd), 1935- (creator)
Bograd, Steven J. (creator)
García, Joaqúin (creator)
Huyer, Adriana, 1945- (creator)
Lavaniegos, Bertha E. (creator)
Ohman, Mark D. (creator)
Sydeman, William J. (creator)
Wheeler, Patricia A. (creator)
Collins, Curtis A. (creator)
Goericke, Ralf (creator)
Hyrenbach, K. David (creator)
Lynn, Ronald J. (creator)
Peterson, William T. (creator)
Venrick, Elizabeth (creator)
Date Issued 2002 (iso8601)
Abstract This report summarizes physical and biological conditions
in the California Current System (CCS), from
Oregon to Baja California, in 2001 and 2002. The principal
sources of the observations described here are the
CalCOFI (California Cooperative Oceanic Fisheries
Investigations), IMECOCAL (Investigaciones Mexicanas
de la Corriente de California), and U.S. GLOBECLTOP
(Global Ecosystems Long-term Observation Program) programs. Large-scale atmospheric and oceanic
conditions in the Pacific point to a fourth consecutive
La Niña-like year. This has contributed to generally
stronger than normal upwelling and uncharacteristically
cool waters in much of the CCS, a pattern that has persisted
since late 1998. Biological productivity has been
generally higher as well, particularly off Oregon. Within
the observed interannual fluctuations of recent years,
these conditions suggest a generally elevated production off California and Oregon, but cool conditions have led
to lower than normal zooplankton biomass off Baja
California. Although the tropical Pacific has exhibited
some indications of a developing El Niño, it is not likely
to impact the CCS during the productive upwelling season
of 2002. These observations are continuing evidence
that a regime shift may have occurred in 1998, resulting
in substantial change in ecosystem structure in the
CCS. Continued monitoring and analysis of the state of
the CCS in this context is needed. We outline a plan
for an integrated monitoring program for the entire region,
through the creation of ACCEO (Alliance for
California Current Ecosystem Observation).
Genre Article
Identifier http://hdl.handle.net/1957/13715

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