GEOMAR  Karstensen, Johannes

Dr. Johannes Karstensen

Research scientist in Topic 2

Research Focus

  • Ocean circulation of mass, heat, and other properties
  • Large-scale to submesoscale dynamics
  • Interaction between ocean physics and biogeochemcial and biological processes
  • Optimizing ocean observing

Academic Degrees

July 1999          Ph.D. in Physical Oceanography, University of Hamburg
Dec 1994           Diploma in Physical Oceanography, University of Hamburg

 

Professional Experience

  • 12/2002 – present: Scientist, GEOMAR (IfM, IfM-GEOMAR), RD1: Physical Oceanography
  • 04/2016 – 04/2019: Adjunct Dalhousie University, Halifax, Canada
  • 10/2010 – 11/2010: Lecturer at KAUST, Thuwai, Saudi Arabia
  • 04/2002 – 12/2002: Investigador, PROFC, University of Concepcion, Chile
  • 03/2000 – 04/2002: Postdoctoral Research Scientist, LDEO of Columbia University, USA
  • 01/2000 – 02/2000: Visiting Research Scientist, Niels Bohr Institute, Copenhagen, Denmark
  • 10/1995 – 03/1996: Visiting Research Scientist, FIAMS, Adelaide, Australia
  • 01/1995 – 12/2000: Research Scientist, University of Hamburg, Germany

Committee Membership

International:

  • 2024 – present: Chairperson OceanPractices AISBL
  • 2021 – 2023: German representative G7 FSOI “Data sharing infrastructure”
  • 2021 – 2022: co-chair of endorsed UN Decade Programme “Ocean Practices for the Decade”
  • 2019 – 2024: co-lead of SCICOM subgroup “ICES & Oceanography” 
  • 2019 – 2022: co-chair IOC Ocean Best Practices System
  • 2019 – present: associate Member SWOT Adopt-a-Crossover steering committee
  • 2016 – present: co-chair GOOS/OCG Open Ocean Time Series Stations “OceanSITES”
  • 2016 – present: ICES Science Committee (SCICOM) alternate Germany
  • 2015 – present: Scientific Steering Committee OSNAP (Overturning in the Subpolar North Atlantic Program)
  • 2015 – 2022: Steering team GOOS/OCG “OceanGliders”
  • 2015 – 2021: Steering team EuroGOOS task team “Ocean gliders”
  • 2015 – 2020: Panel Member “Ocean Observations Panel for Climate” (OOPC)
  • 2015 – 2018: Scientific Steering Committee Member NAVIS (North Atlantic Virtual Institute)
  • 2010 – 2014: German Delegate COST action ES0904 ”European Gliding Observatory Network”
  • 2011 – 2015: German Delegate COST action ES1001 ”SMOS MODE”

National:

  • 2020 – present: Member Zukunftsforum Ozean
  • 2018 – 2020: Deutsche Allianz für Meeresforschung e.V. - Data Management Advisory group
  • 2014 – present: Member Steering team “Open Ocean sustained Observations” of KDM
  • 2007 – 2019: Member DFG Kiel Cluster of Excellence ”The Future Ocean”
  • 2008 – 2019: Member DFG SFB 754 ”Climate-Biogeochemistry Interaction in the Tropical Ocean”

Projects

See respect link www.geomar.de/fb1-po/projekte

Editorial Service

  • 2025 – present: Speciality Chief Editor Frontier in Marine Science: Ocean Observations (https://www.frontiersin.org/journals/marine-science/sections/ocean-observation.
  • 2022 – present: Editorial Board member Copernicus Ocean State Report (OSR) published in EGU “State of the Planet” (https://www.state-of-the-planet.net/)
  • 2017 – 2025: Chief-Editor of Frontiers Research Topic “Best Practices in Ocean Observing” (http://journal.frontiersin.org/researchtopic/7173)
  • 2020 – 2021: Editorial Board member Frontiers Research Topic “Ocean Sciences and Ethics” (http://journal.frontiersin.org/researchtopic/16139)
  • 2008: Guest Editor “Progress in Oceanography” A New View of Water Masses After WOCE. A Special Edition for Professor Matthias Tomczak
  • 2007 – 2018: Member Editorial Board „Journal of Operational Oceanography“


Publications

Cruises (63)

  • Open Ocean RVs

2026 SeaBLOOM (main: Dr. Fehmi Dilmahamod; co-proposer/co-chief scientist)
2024 RV Maria S Merian 129/1 & 2 Baltic Sea/subpolar North Atlantic (proposer/chief scientist)
2022 RV Meteor M184 subpolar North Atlantic (proposer/chief scientist)
2020 RV Maria S. Merian 94 subpolar North Atlantic (proposer/chief scientist)
2020 RV Maria S. Merian 89 EUREC4A++ mesoscale Eddy cruise (proposer/chief scientist)
2020 RV Meteor M161 EUREC4A atmosphere cruise (co-proposer)
2018 RV Maria S. Merian 74 (proposer/chief scientist)
2017 RV Maria S. Merian 61 (co-proposer)
2017 RV Maria S. Merian 60 (proposer/chief scientist)
2016 RV Maria S. Merian 54 (proposer/chief scientist)
2016 RV Meteor M124 (proposer/chief scientist)
2014 N/O Thalassa MSM40 (replacement Maria S. Merian) (proposer/chief scientist), 2014
2013 RV Meteor 96 (proposer/chief scientist)
2012 RV Maria S. Merian 21/1a (proposer/chief scientist)
2011 RV Meteor 85/2 (proposer/chief scientist),
2010 RV Meteor 82/1 (secondary user) 
2009 RV Maria S. Merian MSM12/1 (secondary user)
2008 N/O Thalassa SPNA081 (secondary user)
2007 RV Maria S. Merian MSM05/41 (secondary user)
2006 RSS DISCOVERY 309 1 (secondary user)

  • Coastal Ocean RVs (chief scientist only; AL= RV Alkor, POS= RV Poseidon)

AL229 (09/2003), AL240 (07/2004), AL247 (10/2004), AL268 (10/2005), AL273 (02/2006), AL280 (06/2006), AL289 (10/2006), AL305 (09/2007), AL321 (06/2008), AL362 (09/2010), AL33/11 (09/2011), AL03/12 (09/2012), AL423 (09/2013), AL02/14 (09/2014), POS490 (09/2015), AL482 (07/2016), AL500 (09/2017), POS529 (09/2018), AL529 (10/2019), AL564 (09/2021), AL559 (08/2023), AL617 (08/2024)

  • Responsible scientist

2012 RV Maria S. Merian (Tropical Atlantic; MSM23): CTD, salinometer
2010 RSS James Clark Ross (Northeast Atlantic; Cruise 221): mooring, lander
2009 RV Meteor (South East Pacific; M77-4): CTD, glider, underway (uw)-data
2009 RV Maria S. Merian (Subpolar North Atlantic; MSM12-1): CTD, mooring
2008 RV Maria S. Merian (Tropical Atlantic; MSM08-1): CTD, salinometer

2007 RV Maria S. Merian (Subpolar North Atlantic; MSM05-4): CTD, mooring
2006 RV Maria S. Merian (Tropical Atlantic; MSM04-1): CTD, vmADCP, uw-data
2006 RSS Discovery (Subpolar North Atlantic): mooring

2005 NO l’Atalante (Tropical Atlantic; MOVE): lADCP, vmADCP, CTD, uw-data

2004 RSS Charles Darwin (Subpolar North Atlantic; CD162b): mooring

2004 RV Meteor (Tropical Atlantic; M60-4): vmADCP, lADCP, moorings, uw-data
2003 RV Sonne (Tropical Atlantic; MOVE): lADCP, vmADCP, CTD, uw-data

1997 RV Sonne (Bay of Bengal, WOCE): CTD, mooring

1996 GMMOS Discovery (Arabian Sea, WOCE): mooring

1995 RV Franklin (Indonesian Throughflow; WOCE I7): Seasoar, CTD

1993 FS Valdivia (Subpolar North Atlantic; WOCE AR7 East): CTD

1989 FS Valdivia (Faroe/Shetland Channel): CTD