Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 11
Articles | Volume 23, issue 11
https://doi.org/10.5194/bg-23-3871-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-3871-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 11
Research article
 | 
12 Jun 2026
Research article |  | 12 Jun 2026

Understanding the resilient carbon cycle response to the 2014–2015 Blob event in the Gulf of Alaska using a regional ocean biogeochemical model

Yumi Abe, Takamitsu Ito, Amanda H. V. Timmerman, Christopher T. Reinhard, and Joseph P. Montoya

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Short summary
Marine heatwaves are defined by periods of unusually high sea temperature. Although warmer seawater usually reduces the ocean’s ability to absorb carbon dioxide, observations in the Gulf of Alaska showed a surprising drop in carbon dioxide during the 2014–2015 “Blob” heatwave. Using an ocean biogeochemical model, we found that this decline resulted from reduced dissolved inorganic carbon caused by weakened physical supply in winter 2013, just before the Blob began.
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