Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016)

Fischer, Gerhard; Romero, Oscar E.; Karstensen, Johannes; Baumann, Karl-Heinz; Moradi, Nasrollah; Iversen, Morten; Ruhland, Götz; Klann, Marco; Körtzinger, Arne

doi:https://doi.org/10.5194/bg-18-6479-2021

Articles | Volume 18, issue 24

https://doi.org/10.5194/bg-18-6479-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Concerted multidisciplinary and multi-platform eddy studies...

https://doi.org/10.5194/bg-18-6479-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 24

Research article

|

17 Dec 2021

Research article |

| 17 Dec 2021

Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016)

Gerhard Fischer, Oscar E. Romero, Johannes Karstensen, Karl-Heinz Baumann, Nasrollah Moradi, Morten Iversen, Götz Ruhland, Marco Klann, and Arne Körtzinger

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Jun 2023	12	13	1	26
Jul 2023	18	17	0	35
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Cumulative views and downloads (calculated since 17 May 2021)

Month	HTML	PDF	XML	Total
May 2021	144	33	2	179
Jun 2021	43	9	0	52
Jul 2021	51	21	4	76
Aug 2021	45	19	2	66
Sep 2021	18	14	2	34
Oct 2021	31	31	0	62
Nov 2021	33	30	1	64
Dec 2021	255	57	3	315
Jan 2022	108	36	1	145
Feb 2022	52	17	2	71
Mar 2022	49	20	0	69
Apr 2022	42	14	3	59
May 2022	31	13	0	44
Jun 2022	38	4	0	42
Jul 2022	18	3	0	21
Aug 2022	53	14	1	68
Sep 2022	32	12	1	45
Oct 2022	38	10	1	49
Nov 2022	23	14	0	37
Dec 2022	27	12	0	39
Jan 2023	37	24	0	61
Feb 2023	23	10	2	35
Mar 2023	27	9	2	38
Apr 2023	23	11	1	35
May 2023	15	11	0	26
Jun 2023	12	13	1	26
Jul 2023	18	17	0	35
Aug 2023	24	13	2	39
Sep 2023	11	11	0	22
Oct 2023	36	8	3	47
Nov 2023	20	2	1	23
Dec 2023	1	0	1

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Short summary

Low-oxygen eddies in the eastern subtropical North Atlantic can form an oasis for phytoplankton growth. Here we report on particle flux dynamics at the oligotrophic Cape Verde Ocean Observatory. We observed consistent flux patterns during the passages of low-oxygen eddies. We found distinct flux peaks in late winter, clearly exceeding background fluxes. Our findings suggest that the low-oxygen eddies sequester higher organic carbon than expected for oligotrophic settings.

Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016)

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