Group
Marine Physics and Ocean Climate
Site
Southampton
Email
marilena.oltmanns at noc.ac.uk
Research Interests:
- Anything related to ocean and climate!
- Special preference for ice-ocean-atmosphere dynamics and their feedbacks
- Fascinated about extremes and tipping points (from a distance)
- Always excited about trying out new mathematical methods
Career Stages:
- PhD at Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, US: Analysed Greenland winds and their impacts on the ocean, sea ice and ice sheet
- Postdoc at GEOMAR – Helmholtz Centre for Ocean Research Kiel, Germany: Dived into North Atlantic climate variability and contributed to large, international ocean observing campaigns
- Since 2019: Research/Senior Scientist in Marine Physics and Ocean Climate at NOC, UK
Current PhD Students:
- Francesca Pereira (2021– ): Investigating spice effects on acoustics in the Arctic Ocean using observations and models
- Xuehan Xie (2023– ): Working on freshwater–SST connections in the North Pacific (visiting NOC on a CSC)
- Heather Jaques (2023– ): Analysing restratification processes in the Labrador Sea with gliders (lead supervisor is Louis Clement)
- Harry Ashton-Keys (2023– ): Studying reasons for the spread in AMOC variability in CMIP models (lead supervisor is Jenny Mecking)
- Lisanne Blok (2024– ): Examining drivers of coastal flooding using machine learning and other methods (based in Cambridge; lead supervisor is Ali Mashayek)
- Scott Lewin (2024– ): Estimating the risks of subpolar gyre tipping using dynamical systems analyses (based at Imperial)
- Vedant Vairagi (2024– ): Studying Arctic Ocean variability using ITP data (based at Bangor; lead supervisor is Yueng-Djern Lenn)
- Yeon Choi (2024– ): Investigating vertical heat exchanges in the Arctic Ocean (advisory committee; based at the Alfred Wegener Institute)
- Ufuk Özkan (2024– ): Analysing Arctic sea ice variability and air-sea fluxes with the AWI CM3 coupled model (advisory committee; based at the Alfred Wegener Institute)
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Current projects:
- DIMSUM ("Drivers and impacts of North Atlantic freshwater and heat fluxes unsettling modern-day climate")
- CANARI ("Climate change in the Arctic - North Atlantic region and impacts on the UK").
In addition, I collaborate with the SNAP-DRAGON, WISHBONE, and ArctiCONNECT projects on the dynamics and climate impacts of the subpolar North Atlantic circulation and Arctic – mid-latitude linkages. I am also an active member of the international OSNAP ("Overturning in the Subpolar North Atlantic Program") group and the ASOF community on "Arctic-Subarctic Ocean Fluxes".
Past projects:
- ACSIS project ("North Atlantic Climate System Integrated Study")
- CLASS ("Climate Linked Atlantic Sector Science").
While I worked at GEOMAR - Helmholtz Centre for Ocean Research Kiel, I contributed to large EU projects, including Blue Action, NACLIM, FixO3, SeaDataCloud, AtlantOS, and the German RACE project, which focused on North Atlantic climate variability or on managing ocean data.