Articles | Volume 14, issue 1
https://doi.org/10.5194/os-14-69-2018
https://doi.org/10.5194/os-14-69-2018
Research article
 | 
02 Feb 2018
Research article |  | 02 Feb 2018

Response of O2 and pH to ENSO in the California Current System in a high-resolution global climate model

Giuliana Turi, Michael Alexander, Nicole S. Lovenduski, Antonietta Capotondi, James Scott, Charles Stock, John Dunne, Jasmin John, and Michael Jacox

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Cited articles

Alexander, M.: Extratropical Air-Sea Interaction, Sea Surface Temperature Variability, and the Pacific Decadal Oscillation, in: Clim. Dynam.: Why Does Climate Vary?, edited by: De-Zheng, S. and Bryan, F., 189, 123–148, AGU Geophysical Monograph Series, 2010. a
Alexander, M. A., Bladé, I., Newman, M., Lanzante, J. R., Lau, N. C., and Scott, J. D.: The atmospheric bridge: The influence of ENSO teleconnections on air-sea interaction over the global oceans, J. Climate, 15, 2205–2231, 2002. a, b, c
Alexander, M. A., Bhatt, U. S., Walsh, J. E., Timlin, M. S., Miller, J. S., and Scott, J. D.: The atmospheric response to realistic Arctic sea ice anomalies in an AGCM during winter, J. Climate, 17, 890–905, 2004. a
Annamalai, H., Okajima, H., and Watanabe, M.: Possible impact of the Indian Ocean SST on the Northern Hemisphere circulation during El Niño, J. Climate, 20, 3164–3189, 2007. a
Bakun, A.: Global climate change and intensification of coastal ocean upwelling, Science, 247, 198–201, 1990. a
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Short summary
A high-resolution global model was used to study the influence of El Niño/La Niña events on the California Current System (CalCS). The mean surface oxygen (O2) response extends well offshore, where the pH response occurs within ~ 100 km of the coast. The surface O2 (pH) is primarily driven by temperature (upwelling) changes. Below 100 m, anomalously low O2 and low pH occurred during La Niña events near the coast, potentially stressing the ecosystem, but there are large variations between events.