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BG | Articles | Volume 17, issue 3
Biogeosciences, 17, 813–831, 2020
https://doi.org/10.5194/bg-17-813-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Ocean deoxygenation: drivers and consequences – past, present...

Biogeosciences, 17, 813–831, 2020
https://doi.org/10.5194/bg-17-813-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 17 Feb 2020

Research article | 17 Feb 2020

Trends and decadal oscillations of oxygen and nutrients at 50 to 300 m depth in the equatorial and North Pacific

Lothar Stramma et al.

Data sets

Physical oceanography (CTD) during METEOR cruise M138 G. Krahmann https://doi.org/10.1594/PANGAEA.892575

Physical oceanography (CTD) during METEOR cruise M135 S. Schmidtko, M. Visbeck, and G. Krahmann https://doi.org/10.1594/PANGAEA.904009

Hydrochemistry of water samples during METEOR cruise M135 T. Tanhua and M. Visbeck https://doi.org/10.1594/PANGAEA.890441

Physical oceanography during METEOR cruise M91 G. Krahmann and H. W. Bange https://doi.org/10.1594/PANGAEA.858090

Nutrients measured on water bottle samples during METEOR cruise M91 H. W. Bange https://doi.org/10.1594/PANGAEA.817174

Physical oceanography during METEOR cruise M90 G. Krahmann https://doi.org/10.1594/PANGAEA.830245

Hydrochemistry of water samples during METEOR cruise M90 L. Stramma and M. Lohmann https://doi.org/10.1594/PANGAEA.857751

Physical oceanography during METEOR cruise M77/4 G. Krahmann https://doi.org/10.1594/PANGAEA.777907

Hydrochemistry during METEOR cruise M77/4 T. Tanhua, J. Karstensen, F. Malien, E. Ryabenko, and A. Kock https://doi.org/10.1594/PANGAEA.793153

Physical oceanography during METEOR cruise M77/3 G. Krahmann https://doi.org/10.1594/PANGAEA.777255

Hydrochemistry during METEOR cruise M77/3 T. Kalvelage, G. Krahmann, and T. Tanhua https://doi.org/10.1594/PANGAEA.793154

Physical oceanography during SONNE cruise SO243 L. Stramma and M. Lohmann https://doi.org/10.1594/PANGAEA.861388

Nutrients measured on water bottle samples during SONNE cruise SO243 H. W. Bange https://doi.org/10.1594/PANGAEA.861391

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Short summary
The influence of climate signals in the Pacific, especially the Pacific Decadal Oscillation and the North Pacific Gyre Oscillation, as well as El Niño–La Niña and an 18.6-year nodal tidal cycle on oxygen and nutrient trends is investigated. At different locations in the Pacific Ocean different climate signals dominate. Hence, not only trends related to warming but also the influence of climate signals need to be investigated to understand oxygen and nutrient changes in the ocean.
The influence of climate signals in the Pacific, especially the Pacific Decadal Oscillation and...
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