Satellite-derived global-ocean phytoplankton  phenology indices

Nicholson, Sarah-Anne; Ryan-Keogh, Thomas J.; Thomalla, Sandy J.; Chang, Nicolette; Smith, Marié E.

doi:https://doi.org/10.5194/essd-17-1959-2025

Articles | Volume 17, issue 5

https://doi.org/10.5194/essd-17-1959-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-17-1959-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 5

Data description paper

|

09 May 2025

Data description paper |

| 09 May 2025

Satellite-derived global-ocean phytoplankton phenology indices

Sarah-Anne Nicholson, Thomas J. Ryan-Keogh, Sandy J. Thomalla, Nicolette Chang, and Marié E. Smith

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Views and downloads (calculated since 29 Feb 2024)

Month	HTML	PDF	XML	Total
Feb 2024	15	7	3	25
Mar 2024	194	78	13	285
Apr 2024	91	15	7	113
May 2024	61	24	11	96
Jun 2024	39	20	3	62
Jul 2024	19	19	5	43
Aug 2024	32	12	4	48
Sep 2024	38	16	28	82
Oct 2024	34	23	94	151
Nov 2024	29	13	47	89
Dec 2024	25	14	51	90
Jan 2025	34	12	42	88
Feb 2025	44	25	50	119
Mar 2025	60	20	63	143
Apr 2025	40	14	49	103
May 2025	407	59	54	520
Jun 2025	228	64	27	319
Jul 2025	137	42	4	183
Aug 2025	168	36	0	204

Cumulative views and downloads (calculated since 29 Feb 2024)

Month	HTML	PDF	XML	Total
Feb 2024	15	7	3	25
Mar 2024	194	78	13	285
Apr 2024	91	15	7	113
May 2024	61	24	11	96
Jun 2024	39	20	3	62
Jul 2024	19	19	5	43
Aug 2024	32	12	4	48
Sep 2024	38	16	28	82
Oct 2024	34	23	94	151
Nov 2024	29	13	47	89
Dec 2024	25	14	51	90
Jan 2025	34	12	42	88
Feb 2025	44	25	50	119
Mar 2025	60	20	63	143
Apr 2025	40	14	49	103
May 2025	407	59	54	520
Jun 2025	228	64	27	319
Jul 2025	137	42	4	183
Aug 2025	168	36	0	204

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Total article views: 2,763 (including HTML, PDF, and XML) Thereof 2,738 with geography defined and 25 with unknown origin.

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Latest update: 27 Aug 2025

Short summary

The annual widespread growth of phytoplankton blooms across the global ocean has far-reaching impacts on food security, ecosystem health, and climate. This study uses satellite-derived observations to generate long-term, sustained indices of phytoplankton phenology, capturing the timing, variability, and magnitude of blooms across the global ocean. These indices support the effective monitoring and management of marine resources and help assess the impacts of climate change on ocean ecosystems.