Biogeosciences
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Articles | Volume 21, issue 5
Articles | Volume 21, issue 5
https://doi.org/10.5194/bg-21-1117-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-21-1117-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 5
Research article
 | 
07 Mar 2024
Research article |  | 07 Mar 2024

Linking northeastern North Pacific oxygen changes to upstream surface outcrop variations

Sabine Mecking and Kyla Drushka

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Short summary
This study investigates whether northeastern North Pacific oxygen changes may be caused by surface density changes in the northwest as water moves along density horizons from the surface into the subsurface ocean. A correlation is found with a lag that about matches the travel time of water from the northwest to the northeast. Salinity is the main driver causing decadal changes in surface density, whereas salinity and temperature contribute about equally to long-term declining density trends.
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Low-oxygen environments and deoxygenation in open and coastal...
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