Personal profile
Research overview
I am an oceanographer and climate scientist. My research is concerned with understanding how climate-relevant tracers, such as heat and carbon dioxide, are taken up by, stored within, and transported around the ocean. This is achieved by a combination of atmosphere-ocean exchange, the large-scale ocean circulation, turbulent ocean dynamics, and biogeochemical processes. I'm interested in understanding the impact of these processes on the marine environment as well as Earth's climate more broadly. I use a host of tools in my research, including large-scale numerical simulations, process models, theoretical ideas, trajectory analysis, and ocean observations.
Education/Academic qualification
Doctor of Philosophy, Lagrangian Perspectives on Ocean Ventilation, University of Oxford
Award Date: 7 Dec 2017
Master in Science, University of Leeds
Award Date: 1 Sept 2012
Master of Mathematics, Newcastle University
Award Date: 1 Jul 2010
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 13 Climate Action
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SDG 14 Life Below Water
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Collaborations and top research areas from the last five years
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Reframing the carbon cycle of the subpolar Southern Ocean
MacGilchrist, G. A., Garabato, A. C. N., Brown, P. J., Jullion, L., Bacon, S., Bakker, D. C. E., Hoppema, M., Meredith, M. P. & Torres-Valdes, S., Aug 2019, In: Science Advances. 5, 8, 8 p., 6410.Research output: Contribution to journal › Article › peer-review
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Demons in the North Atlantic: variability of deep ocean ventilation
MacGilchrist, G. A., Johnson, H. L., Lique, C. & Marshall, D. P., 16 May 2021, In: Geophysical Research Letters. 48, 9, 9 p., e2020GL092340.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Characterizing the chaotic nature of ocean ventilation
MacGilchrist, G. A., Marshall, D. P., Johnson, H. L., Lique, C. & Thomas, M., Sept 2017, In: Journal of Geophysical Research: Oceans. 122, 9, p. 7577-7594 18 p.Research output: Contribution to journal › Article › peer-review
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Quantifying hydrothermal ammonium mobilization from sediment and implications for the marine biosphere: a case study from the Guaymas Basin, Gulf of California
Rochelle-Bates, N., Long, A., MacGilchrist, G. A., Teske, A. & Stüeken, E. E., 16 Jul 2025, In: Frontiers in Microbiology. 16, 15 p., 1523696.Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific
Shankle, M. G., MacGilchrist, G. A., Gray, W. R., de Lavergne, C., Menviel, L. C., Burke, A. & Rae, J. W. B., 17 Sept 2025, In: Nature Communications. 16, 13 p., 8279.Research output: Contribution to journal › Article › peer-review
Open AccessFile
Datasets
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Model Output for "Southern Ocean CO2 outgassing and nutrient load reduced by a well-ventilated glacial North Pacific"
Shankle, M. (Creator), Menviel, L. (Creator), Rae, J. (Creator), MacGilchrist, G. (Creator), Gray, W. (Creator), de Lavergne, C. (Creator) & Burke, A. (Creator), Zenodo, 2025
Dataset
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Geochemical data from sediments and porewaters of shallow sediment cores from hydrothermal seeps in the Guaymas Basin, Gulf of California
Rochelle-Bates, N. (Creator), Long, A. (Creator), MacGilchrist, G. (Creator), Teske, A. (Creator) & Stüeken, E. E. (Creator), NERC EDS National Geoscience Data Centre, 12 Sept 2024
DOI: 10.5285/53da3dd9-e831-4c4e-8879-c8e8a014ed4d
Dataset
Projects
- 1 Active
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CO2 and climate change: CO2 and climate change: deciphering the role of the high-latitude oceans
MacGilchrist, G. (PI)
17/09/22 → 16/09/26
Project: Standard