Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Volume 13, issue 20
Biogeosciences, 13, 5865–5881, 2016
https://doi.org/10.5194/bg-13-5865-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: Hydrography, biogeochemistry, and biology of "dead-zone eddies"...

Biogeosciences, 13, 5865–5881, 2016
https://doi.org/10.5194/bg-13-5865-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 28 Oct 2016

Research article | 28 Oct 2016

Characterization of “dead-zone” eddies in the eastern tropical North Atlantic

Florian Schütte et al.

Related authors

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
Upwelling and isolation in oxygen-depleted anticyclonic modewater eddies and implications for nitrate cycling
Johannes Karstensen, Florian Schütte, Alice Pietri, Gerd Krahmann, Björn Fiedler, Damian Grundle, Helena Hauss, Arne Körtzinger, Carolin R. Löscher, Pierre Testor, Nuno Vieira, and Martin Visbeck
Biogeosciences, 14, 2167–2181, https://doi.org/10.5194/bg-14-2167-2017,https://doi.org/10.5194/bg-14-2167-2017, 2017
Short summary
Oxygen utilization and downward carbon flux in an oxygen-depleted eddy in the eastern tropical North Atlantic
Björn Fiedler, Damian S. Grundle, Florian Schütte, Johannes Karstensen, Carolin R. Löscher, Helena Hauss, Hannes Wagner, Alexandra Loginova, Rainer Kiko, Péricles Silva, Toste Tanhua, and Arne Körtzinger
Biogeosciences, 13, 5633–5647, https://doi.org/10.5194/bg-13-5633-2016,https://doi.org/10.5194/bg-13-5633-2016, 2016
Short summary
Occurrence and characteristics of mesoscale eddies in the tropical northeastern Atlantic Ocean
Florian Schütte, Peter Brandt, and Johannes Karstensen
Ocean Sci., 12, 663–685, https://doi.org/10.5194/os-12-663-2016,https://doi.org/10.5194/os-12-663-2016, 2016
Short summary
Dead zone or oasis in the open ocean? Zooplankton distribution and migration in low-oxygen modewater eddies
Helena Hauss, Svenja Christiansen, Florian Schütte, Rainer Kiko, Miryam Edvam Lima, Elizandro Rodrigues, Johannes Karstensen, Carolin R. Löscher, Arne Körtzinger, and Björn Fiedler
Biogeosciences, 13, 1977–1989, https://doi.org/10.5194/bg-13-1977-2016,https://doi.org/10.5194/bg-13-1977-2016, 2016
Short summary

Related subject area

Biogeophysics: Physical - Biological Coupling
Abundance and viability of particle-attached and free-floating bacteria in dusty and nondust air
Wei Hu, Kotaro Murata, Chunlan Fan, Shu Huang, Hiromi Matsusaki, Pingqing Fu, and Daizhou Zhang
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-94,https://doi.org/10.5194/bg-2020-94, 2020
Revised manuscript accepted for BG
Short summary
Biological and biogeochemical methods for estimating bioirrigation: a case study in the Oosterschelde estuary
Emil De Borger, Justin Tiano, Ulrike Braeckman, Tom Ysebaert, and Karline Soetaert
Biogeosciences, 17, 1701–1715, https://doi.org/10.5194/bg-17-1701-2020,https://doi.org/10.5194/bg-17-1701-2020, 2020
Short summary
Linking tundra vegetation, snow, soil temperature, and permafrost
Inge Grünberg, Evan J. Wilcox, Simon Zwieback, Philip Marsh, and Julia Boike
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-88,https://doi.org/10.5194/bg-2020-88, 2020
Revised manuscript accepted for BG
Short summary
Drivers of the spatial phytoplankton gradient in estuarine-coastal systems: generic implications of a case study in a Dutch tidal bay
Long Jiang, Theo Gerkema, Jacco C. Kromkamp, Daphne van der Wal, Pedro Manuel Carrasco De La Cruz, and Karline Soetaert
Biogeosciences Discuss., https://doi.org/10.5194/bg-2020-40,https://doi.org/10.5194/bg-2020-40, 2020
Revised manuscript accepted for BG
Short summary
Dissolved inorganic nitrogen and particulate organic nitrogen budget in the Yucatán shelf: driving mechanisms through a physical–biogeochemical coupled model
Sheila N. Estrada-Allis, Julio Sheinbaum Pardo, Joao M. Azevedo Correia de Souza, Cecilia Elizabeth Enríquez Ortiz, Ismael Mariño Tapia, and Jorge A. Herrera-Silveira
Biogeosciences, 17, 1087–1111, https://doi.org/10.5194/bg-17-1087-2020,https://doi.org/10.5194/bg-17-1087-2020, 2020
Short summary

Cited articles

Altabet, M. A., Ryabenko, E., Stramma, L., Wallace, D. W. R., Frank, M., Grasse, P., and Lavik, G.: An eddy-stimulated hotspot for fixed nitrogen-loss from the Peru oxygen minimum zone, Biogeosciences, 9, 4897–4908, https://doi.org/10.5194/bg-9-4897-2012, 2012.
Argo Data Management Team: Argo float data, available at: http://doi.org/10.17882/42182#42349, last access: 1 January 2016.
Armi, L. and Zenk, W.: Large Lenses of Highly Saline Mediterranean Water, J. Phys. Oceanogr., 14, 1560–1576, 1984.
Bakun, A.: Global Climate Change and Intensification of Coastal Ocean Upwelling, Science, 247, 198–201, 1990.
Bower, A. S., Armi, L., and Ambar, I.: Direct evidence of meddy formation off the southwestern coast of Portugal, Deep-Sea Res. Pt. I, 42, 1621–1630, 1995.
Publications Copernicus
Download
Short summary
Mesoscale eddies with very low–oxygen concentrations at shallow depth have been recently discovered in the eastern tropical North Atlantic. Our analysis shows that low oxygen eddies occur more frequent than expected and are found even close to the equator (8° N). From budget calculations we show that an oxygen reduction of 7 µmol/kg in the depth range of 50–150 m in the eastern tropical North Atlantic (peak reduction is 16 µmol/kg at 100 m depth) can be associated with the dispersion of these eddies.
Mesoscale eddies with very low–oxygen concentrations at shallow depth have been recently...
Citation
Final-revised paper
Preprint