Articles | Volume 17, issue 3
https://doi.org/10.5194/bg-17-813-2020
https://doi.org/10.5194/bg-17-813-2020
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, Sunke Schmidtko, Steven J. Bograd, Tsuneo Ono, Tetjana Ross, Daisuke Sasano, and Frank A. Whitney

Related authors

Tropical deoxygenation sites revisited to investigate oxygen and nutrient trends
Lothar Stramma and Sunke Schmidtko
Ocean Sci., 17, 833–847, https://doi.org/10.5194/os-17-833-2021,https://doi.org/10.5194/os-17-833-2021, 2021
Short summary
ENSO-driven fluctuations in oxygen supply and vertical extent of oxygen-poor waters in the oxygen minimum zone of the Eastern Tropical South Pacific
Yonss Saranga José, Lothar Stramma, Sunke Schmidtko, and Andreas Oschlies
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-155,https://doi.org/10.5194/bg-2019-155, 2019
Revised manuscript accepted for BG
Short summary
Transport, properties, and life cycles of mesoscale eddies in the eastern tropical South Pacific
Rena Czeschel, Florian Schütte, Robert A. Weller, and Lothar Stramma
Ocean Sci., 14, 731–750, https://doi.org/10.5194/os-14-731-2018,https://doi.org/10.5194/os-14-731-2018, 2018
Short summary
Observed El Niño conditions in the eastern tropical Pacific in October 2015
Lothar Stramma, Tim Fischer, Damian S. Grundle, Gerd Krahmann, Hermann W. Bange, and Christa A. Marandino
Ocean Sci., 12, 861–873, https://doi.org/10.5194/os-12-861-2016,https://doi.org/10.5194/os-12-861-2016, 2016
Short summary
Influence of mesoscale eddies on the distribution of nitrous oxide in the eastern tropical South Pacific
Damian L. Arévalo-Martínez, Annette Kock, Carolin R. Löscher, Ruth A. Schmitz, Lothar Stramma, and Hermann W. Bange
Biogeosciences, 13, 1105–1118, https://doi.org/10.5194/bg-13-1105-2016,https://doi.org/10.5194/bg-13-1105-2016, 2016
Short summary

Related subject area

Biogeochemistry: Open Ocean
Seasonal cycles of biogeochemical fluxes in the Scotia Sea, Southern Ocean: a stable isotope approach
Anna Belcher, Sian F. Henley, Katharine Hendry, Marianne Wootton, Lisa Friberg, Ursula Dallman, Tong Wang, Christopher Coath, and Clara Manno
Biogeosciences, 20, 3573–3591, https://doi.org/10.5194/bg-20-3573-2023,https://doi.org/10.5194/bg-20-3573-2023, 2023
Short summary
Absence of photophysiological response to iron addition in autumn phytoplankton in the Antarctic sea-ice zone
Asmita Singh, Susanne Fietz, Sandy J. Thomalla, Nicolas Sanchez, Murat V. Ardelan, Sébastien Moreau, Hanna M. Kauko, Agneta Fransson, Melissa Chierici, Saumik Samanta, Thato N. Mtshali, Alakendra N. Roychoudhury, and Thomas J. Ryan-Keogh
Biogeosciences, 20, 3073–3091, https://doi.org/10.5194/bg-20-3073-2023,https://doi.org/10.5194/bg-20-3073-2023, 2023
Short summary
Optimal parameters for the ocean's nutrient, carbon, and oxygen cycles compensate for circulation biases but replumb the biological pump
Benoît Pasquier, Mark Holzer, Matthew A. Chamberlain, Richard J. Matear, Nathaniel L. Bindoff, and François W. Primeau
Biogeosciences, 20, 2985–3009, https://doi.org/10.5194/bg-20-2985-2023,https://doi.org/10.5194/bg-20-2985-2023, 2023
Short summary
Importance of multiple sources of iron for the upper-ocean biogeochemistry over the northern Indian Ocean
Priyanka Banerjee
Biogeosciences, 20, 2613–2643, https://doi.org/10.5194/bg-20-2613-2023,https://doi.org/10.5194/bg-20-2613-2023, 2023
Short summary
Exploring the role of different data types and timescales in the quality of marine biogeochemical model calibration
Iris Kriest, Julia Getzlaff, Angela Landolfi, Volkmar Sauerland, Markus Schartau, and Andreas Oschlies
Biogeosciences, 20, 2645–2669, https://doi.org/10.5194/bg-20-2645-2023,https://doi.org/10.5194/bg-20-2645-2023, 2023
Short summary

Cited articles

Amrhein, V., Greenland, S., and McShane, B.: Retire statistical significance, Nature, 567, 305–307, 2019. 
Bange, H. W.: Nutrients measured on water bottle samples during METEOR cruise M91. GEOMAR – Helmholtz Centre for Ocean Research Kiel, PANGAEA, https://doi.org/10.1594/PANGAEA.817174, 2013. 
Bange, H. W.: Nutrients measured on water bottle samples during SONNE cruise SO243. PANGAEA, https://doi.org/10.1594/PANGAEA.861391, 2016. 
Bograd, S. J., Pozo Buil, M., Di Lorenzo, E., Castro, C. G., Schroeder, I. D., Goericke, R., Anderson, C. R., Benitez-Nelson, C., and Whitney, F. A.: Changes in source waters to the Southern California Bight, Deep-Sea Res. Pt. II, 112, 42–52, https://doi.org/10.1016/j.dsr2.2014.04.009, 2015. 
Bond, N. A., Cronin, M. F., Freeland, H., and Mantua, N.: Causes and impacts of the 2014 warm anomaly in the NE Pacific, Geophys. Res. Lett., 42, 3414–3420, https://doi.org/10.1002/2015GL063306, 2015. 
Download
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.
Altmetrics
Final-revised paper
Preprint