M.Sc. Tobias Hahn (he/him)

Scientific Coordinator & Doctoral Researcher
Research Department 2: Marine Biogeochemistry
Research Unit: Chemical Oceanography
WGs: Cabo Verde Cooperation and Ocean-Atmosphere-Interaction & Marine Carbon Cycle

Office
Building 5; Room: 3.504
Tel: +49 431 600 1472
Email: thahn(at)geomar.de

Address 
GEOMAR Helmholtz Centre for Ocean Research Kiel
Chemical Oceanography (RD2, CH)
Wischhofstr. 1-3 | 24148 Kiel

Personal Information

  • Place of Birth: Halle/Saale
  • Languages: German, English, French (basic), Norwegian (basic)

Focus areas

  • Marine carbon and oxygen cycle, incl. chemical analysis
  • Observational Chemical Oceanography, such as development and application of sensors on platforms
  • Promotion of young academics, especially in West Africa
  • Science communication and sustainable research (e.g. ethical aspects)

Education & Academic Career

  • 2024–today | Education & Scientific Coordinator, Cabo Verde Cooperation & WASCAL Cabo-Verde Master Research Programme "Climate Change and Marine Sciences", GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel
  • 2022–2024 | Trainee in Science Communication (Focus in Marine Sciences), Press Department & research priority area Kiel Marine Science (KMS), Kiel University
  • 2020–2021 | Research Associate (project DArgo2025), GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel
  • 2015–today | Doctoral Researcher (project AtlantOS, Doctoral Advisor: Prof. Dr. Arne Körtzinger), GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel
  • 2011–2016 | Master of Science in Chemistry, Kiel University, Master's thesis at GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel
  • 2008–2011 | Bachelor of Science in Chemistry, University of Bremen, Bachelor's thesis at AWI Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
  • 1998–2007 | Senior High School Degree, Elisabeth-Gymnasium, Halle/Saale

Research Stays

  • 2010 | Six-week, student research stay at the SDSU San Diego State University in the work group “Bioinorganic Chemistry” of Prof. Carl J. Carrano

Scholarships, Summer School & Voluntary Service

  • 2023–today | Jury Member at "BundesUmweltWettbewerb" ('Federal environmental competition) 
  • 2019 | Potsdam Summer School 2019 "Connecting Science & Society - Communicating Research on Sustainability and Global Change"
  • 2018–2024 | Co-organisator of "FaktOderFake - Wissenschaft erklärt" (Lectures series "Wissenschaft und Alternative Fakten")
  • 2017 | Co-organisator of the Helmholtz doctoral researchers conference NextGen@Helmholtz 2017
  • 2016–today | Jury Member in Chemistry at "Jugend Forscht" ('Youth researches', regional level)
  • 2016–2018 | Volunteer at Arctic Frontiers, Tromsø, Norway
  • 2015–2019 | Supervision of more than 20 school interns
  • 2014 | Theory- and Fieldcourse "Cutting Edge Observational Technology in Marine Biogeochemistry", Sven Lovén Centre, Tjarnö, Sweden
  • 2010 | DAAD-Scholarship in the RISE (Research Internships in Science and Engineering) program, SDSU San Diego State University, San Diego/California (USA)

Research cruises

  • upcoming RV Polarstern PS154/2 | 2026 (1-14.5): WASCAL Floating University, (Sub)Tropical North Atlantic & Gulf of Biscaya & North Sea, Mindelo (Cabo Verde) - Bremerhaven (Germany) | Co-Chief Scientist
  • RV Alkor AL636a | 2025 (16.7): MUSE CVOO Buoy (Deployment), Kiel Bay | Proponent, Chief Scientist 
  • RV Polarstern PS147/2 | 2025 (1-14.4): WASCAL Floating University, (Sub)Tropical North Atlantic & Gulf of Biscaya & North Sea, Mindelo (Cabo Verde) - Bremerhaven (Germany) | Co-Chief Scientist
  • RV Meteor M160 | 2019 (23.11-20.12): MOSES Eddy Study II, Tropical North Atlantic, Mindelo (Cabo Verde) - Mindelo (Cabo Verde)
  • RV Meteor M133 | 2016/2017 (15.12-13.1): SACROSS (South Atlantic Crossing), South Atlantic, Cape Town (South Africa) - Stanley (Falkland Islands/Malvinas) | Co-Organiser
  • RV Meteor M119 | 2015 (8.9-12.10): Climate-Biogeochemistry Interactions in the Tropical Ocean (CRC754), Tropical Atlantic, Mindelo (Cabo Verde) - Recife (Brasil)
  • RV Meteor M116/1 | 2015 (1.5-3.6): OSTRE Third Tracer Survey, Tropical North Atlantic, Pointe-a-Pitre (Guadeloupe) - Mindelo (Cabo Verde)
  • RV Polarstern PS88.2/ANT-XXX/I.2 | 2014 (2-29.11): Climate-Biogeochemistry Interactions in the Tropical Ocean (CRC754), (Sub)Tropical Atlantic, Las Palmas (Spain) - Cape Town (South Africa)
  • RV Meteor M105 | 2014 (17.3-16.4): OSTRE Second Tracer Survey, Tropical North Atlantic, Mindelo (Cabo Verde) - Mindelo (Cabo Verde)
  • RV Maria S. Merian MSM23 | 2012 (26.11-20.12): Oxygen Supply Tracer Release Experiment (OSTRE), Tropical Atlantic, Mindelo (Cabo Verde) - Walvis Bay (Namibia)

Several day cruises with RS POLARFUCHS (Boknis Eck, Chief-Scientist), RC LITTORINA (Boknis Eck Time Series Station, Chief-Scientist), RV ALKOR (Kiel Fjord) and RV OCEANOGRAF (Eckernförder Bay)

Publications

OceanRep