Ranpeng Li

RD4: Dynamics of the Ocean Floor

Phone: +49 431 600-2376
E-mail: rli(at)geomar.de

My name is Ranpeng. I started my PhD in the summer of 2024. My research focuses on the solid part of the Earth - the seafloor and below - through numerical simulations. I am interested in how mineral phases change, how rocks deform and move, and how mantle convection shapes planetary evolution. I am a big fan of science fiction, literature, and board games. I don’t like bugs - both inside and outside my code.

Activities:

• Helmholtz Juniors (Survey working group), RD4 council
• Outreach and post-doc contact, Mailing lists

Sina Acksen

RD 2:  Biogeochemical modelling

Phone: +49 431 600-2465
E-mail: sacksen(at)geomar.de

Hi everyone, my name is Sina, and I recently started as a doctoral researcher in October 2024. Before this, I was already affiliated with GEOMAR during my master’s thesis, where I participated in the GAME program. My research focuses on simulations with an Earth system model to better understand the long-term effects of alkalinity enhancement in the oceans as a method for carbon dioxide removal from the atmosphere. Outside of work, I enjoy climbing and my favorite food wraps, which I sometimes eat about three times per week.. :)

Activities:

• RD2 council, Staff council, Directorate
• Mailing list, Newsletter & WhatsApp, FYORD representative

Lukas Schreiber

FB2: Marine Biogeochemistry

Phone: +49 431 600-2032
E-mail: lschreiber(at)geomar.de

Hello everyone, my name is Lukas (Schreiber) and I have been doing my PhD since March 2024. Potential induestrial-scale deep-sea mining activities provoke sediment plumes in the water column, whose effects I am investigating on organisms and biogeochemical cycle with computer models. My university education involves bachelor programme Technical Physics at TU Ilmenau and Climate Physics at Uni Kiel/Geomar for the master degree. In my free time I enjoy dancing Lindy Hop and playing inline hockey.

Activities:

• RD2 council, Gender Equality & Diversity
• Newsletter & WhatsApp, Website & Intranet

Lisa Heinz

RD4: Dynamics of the Ocean Floor

Phone: +49 431 600-1432
E-mail: lheinz(at)geomar.de

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Activities:

• Staff council, Scientific council
• RD4 council, Website & Intranet

Lukas Schattenhofer

RD4: Dynamics of the Ocean Floor

Phone +49 431 600-2325
E-mail: lschattenhofer@geomar.de

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Activities:

• Gender Equality & Diversity, Directorate
• RD4 council, Scientific council

Federico Scarscelli

RD 1:  Ocean Circulation and Climate Dynamics

Phone: +49 431 600-4455
E-Mail: fscarscelli(at)geomar.de

My name is Federico Scarscelli, I started my PhD at GEOMAR in March 2025, as member of MarDATA. I work in the Physical Oceanography group, focusing on Data Mining and Machine Learning techniques applied to oceanographic data.

In my free time, I enjoy sailing, freediving and scuba diving.

Activities:

• Helmholtz Juniors (survey working group)
• RD1 council, HSE contact, Scientific Advisory Board

Femke Thoben

FB3: Marine Ecology

Phone: +49 431 600-1945
E-Mail: fthoben(at)geomar.de

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Activities:

• RD3 council, HSE contact, Scientific Advisory Board
• Outreach and post-doc contact