Research Group
Opportunities
- I will open a postdoc position within the SOFIA project in late 2026.
- If you are interested in joining our team for student research projects, please get in touch.
- I’m also happy to support fellowship applications, such as the Marie Skłodowska-Curie Fellowship, VR International Postdoc (17/02 deadline), and Carl Tryggers Postdoc (14/05 deadline). Reach out if you’d like to discuss project options.
Group Members

Johan Edholm (PhD)
Johan’s primary interest lies in air-sea interactions, ranging from local, small-scale effects to broad, global implications. He focuses on the autonomous technologies that allow us to observe these interactions from the coast to the open ocean.
Privately, he enjoys quality time with friends and family, whether that means enjoying good music and fine dining or playing board games. He is also an avid traveller who enjoys exploring new cultures and seeking out new adventures.

Vincent Doriot (PhD)
Vincent examines fine-scale mixed layer dynamics from high-resolution underwater gliders. While his current work focuses on the Southern Ocean, he has plans to explore the complex processes of the Agulhas Current.
Outside of work, Vincent is passionate about music, both as a listener and a guitar player. In the warmer months, he explores nature looking for wildlife with his camera, while winter finds him at his computer playing video games.

Lovisa Sunnercrantz (MSc)
Lovisa is a masters student in Physical Oceanography at the University of Gothenburg. She is doing her one-year masters thesis with us focusing on estimating vertical velocities and vertical exchange at meso- to submesoscale fronts in the Cape Basin, using autonomous glider observations and satellite altimetry.
Outside of her studies, she loves diving and enjoys climbing and spending time with friends.

Neha Ramsarup (PhD)
Neha explores how the dynamic Agulhas Current influences South Africa’s coastal systems, using autonomous instruments and satellites to track meanders, eddies, and upwelling events in Algoa Bay. Her work uncovers the fine-scale processes that shape the coastal environment and its ecosystems.
When she’s not working, Neha can usually be found chasing sunsets and taking photos whenever the light is just right. She also enjoys dancing and spending time with friends, especially when there’s good music and good energy

Julia Noack (PhD)
Starting March 2026 ... Julia will start working with the COAS model simulation as part of the SOFIA project, with the goal to reveal the regional and seasonal hotspots of fine-scale dynamics driven ventilation.

Paula Damke (PhD)
Starting March 2026 ... Paula will focus on the link between Southern Ocean air-sea interactions and submesoscale dynamics. Her PhD will contribute to the VR project understanding storm-impacts on Southern Ocean air-sea heat and carbon exchange.
Professional Guidelines
We have a set of professional guidelines that explain how we work together.

Polar Gliders Group retreat to Bornö field station in west Sweden, September 2023.
Former group members
PhD GRADUATES:
Theo Spira (University of Gothenburg, 2025). Supervised with Prof. Sebastiaan Swart (GU), main collaborator Prof. Alex Haumann (AWI). Thesis: Antarctic Winter Water: its role in Southern Ocean dynamics and sea ice variability. Publications: [1] Observed Spatiotemporal Variability of Antarctic Winter Water.
MASTERS:
Renske Koets (M.Sc. Oceanography, University of Gothenburg, 2025). Supervised with Prof. Sebastiaan Swart (GU), main collaborator Prof. Kathy Donohue (URI). Thesis: Vertical circulation in the Cape Cauldron using Apparent Oxygen Utilization.
Gonzalo Ruiz (M.Sc. Oceanography, University of Gothenburg, 2025). Supervised with Prof. Sebastiaan Swart, main collaborator Dr. Sarah Nicholson (SOCCO, CSIR). Thesis: Drivers of CO2 variability in the Cape Cauldron using Wave Glider data.
Michaela Edwinson (M.Sc. Oceanography, University of Gothenburg, 2024). Supervised with Prof. Sebastiaan Swart (GU). Thesis: Drivers of Air-sea heat flux in the Cape Basin.
Blandine Jacobs (M.Sc. Oceanography, University of Gothenburg, 2024). Supervised with Dr. Bastien Queste (GU). Thesis: Time and space variability of air-sea heat fluxes in the Amundsen Sea. Publication: Jacob et al. 2025. Thesis awarded as 2nd best Marine Science masteers thesis in Sweden.
Bongiwe Jojo (M.Sc. University of Cape Town, 2024) Supervised with: Dr. Sarah Nicholson (SOCCO/CSIR). Thesis: Understanding the interannual variability of pCO2 in the sea-ice impacted the Southern Ocean.
David Hagman (M.Sc. Oceanography, University of Gothenburg, 2021). Supervised with Prof. Sebastiaan Swart (GU). Thesis: Unraveling the uncertainties of bulk-derived heat fluxes: A case study for the Southern Ocean.
Sean Evans (M.Sc. Physical Oceangraphy, University of Cape Town, 2021). Supervised with: Prof. Nico de Bryun (UP), Dr. Mia Wege (UP), Prof. Isabelle Ansorge (UCT). Thesis: Seal-borne sensors reveal fine-scale foraging ecology and evidence for topographically enhanced downstream restratification at Marion Island.
Johan Edholm (M.Sc. Oceanography, University of Gothenburg, 2021). Supervised with Prof. Sebastiaan Swart (GU) and Dr. Sarah Nicholson (SOCCO, CSIR). Thesis: Atmospheric rivers over the South Atlantic Ocean, and their impact on freshwater fluxes to the upper ocean. Publication: Edholm et al., 2022.
BACHELORS:
Daniel Clason (B.Sc. Oceanography, University of Gothenburg, 2025). Supervised with Prof. Sebastiaan Swart (GU). Thesis: Mid-latitude cyclone air-sea heat flux response over the Agulhas Current.
Lovisa Sunnercrantz (B.Sc. Oceanography, University of Gothenburg, 2024). Supervised with Johan Edholm (GU). Thesis: Storm impacts on the Southern Ocean air-sea heat and carbon flux with contribution to Prend et al., 2025.
Johan Edholm (B.Sc. Oceanography, University of Gothenburg, 2020). Supervised with Prof. Sebastiaan Swart (GU) and Dr. Sarah Nicholson (SOCCO/CSIR). Thesis: Atmospheric rivers over the South Atlantic Ocean, and their impact on freshwater fluxes to the upper ocean.