Jens Karstens

is Postdoctoral Researcher at GEOMAR participating in different projects.

The Project CASCO - Risk workflow for cascading and compounding hazards in coastal urban areas - starting in 2022 is a cooperation of GFZ German Research Centre for Geosciences with GEOMAR (PI Morelia Urlaub) the Centre for Materials and Coastal Research (HZG) and the Alfred Wegener Institute (AWI).

Jens will be working on tsunami modeling and hazard/risk assessment at Etna which is also a case study in the PRE-COLLAPSE project.

For the Helmholtz Young Investigator Project -Do volcanoes collapse retrogressively?- Jens is developing volcano monitoring and early warning technology and methods.

For the project THESEUS -Tsunami hazard of explosive submarine eruptions- Jens provided site survey data for drilling sites of the IODP Expediton 398 "Hellenic Arc Volcanic Field" and works on the volcanostratigraphy of the Minoan Eruption of Santorini (Greece) and the 1650 eruption and tsunami of the underwater volcano Kolumbo, which will also be a case study in the PRE-COLLAPSE project.

Previously Jens worked on 3D reflection seismic analysis of submarine deposited pyroclastic flows and debris avalanches off Montserrat (Lesser Antilles) and the 1888 Sector Collapse of Ritter Island (Papua New Guinea) (PRE-COLLAPSE case study). At Ritter Island he did additional numerical tsunami simulations.

Research Interests

  • Submarine landslides on volcanic flanks and continental margins

  • Volcanic processes on the seafloor and in marine sediments

  • Impact of dynamic external forces on fluid flow and gas hydrate systems

  • Fluid flow related geohazards for drilling activities and CO₂ storage (CCS)

  • Interpretation of seismic and hydroacoustic data

Contact:

RD4 Dynamics of the Ocean Floor - Marine Geodynamics


phone: 0049-431 600-2660
email: jkarstens@geomar.de
room: 8C-203


GEOMAR Helmholtz Centre for Ocean Research, Kiel
24148 Kiel
Germany

 
 CV

Jens Karstens

Education and Career

10/2016 – present      PostDoc at GEOMAR | Helmholtz Centre for Ocean Research Kiel

10/2015 – 09/2016     PostDoc in the Department of Earth Science at the University of Bergen (Norway) in the Marie Curie Initial training Network "GLANAM (Glaciated North Atlantic Margins)"

7/2011 - 6/2015        Ph.D. student in Marine Geophysics at GEOMAR | Helmholtz Centre for Ocean Research Kiel in the project "ECO₂ - Sub-seabed CO₂ Storage: Impact on Marine Ecosystems"

2009 – 2011     M.Sc in Geophysics, Christian-Albrechts-Universität, Kiel, Germany

2006 – 2009     B.Sc. in Applied Geophysics Christian-Albrechts-Universität, Kiel, Germany

Research projects

since 2019 ACT-SENSE - Assuring integrity of CO₂ storage sites through ground surface monitoring

since 2019 SMART - Sustainable management of offshore groundwater resources

since 2017 STEMM-CCS - Strategies for Environmental Monitoring of Marine Carbon Capture and Storage

2016 - 2018 RITTER ISLAND - Tsunami potential of volcanic flank collapses

2015 - 2016 GLANAM – Glaciation of the North Atlantic Margin

2011 - 2015 ECO2 - Sub-seabed CO₂ Storage: Impact on Marine Ecosystems

2010 - 2011 RRS James Cook 45 – Site survey for the IODP leg 341 offshore Montserrat

2007 - 2009 SFB 574 – Volatiles and Fluids in Subduction Zones

Research cruises

FS Poseidon (POS538) | October 2019 (Aegean Sea): P.I., Acquisition of P-Cable 3D, 2D und OBS seismics

FS Maria S. Merian (MSM78) | October 2018 (British North Sea): P.I., RockDrill2 sediment coring, multibeam and sediment echosounder data

RV Alkor (AL512) | July 2018 (German North Sea): P.I.,Acquisition of 2D and OBS seismic data and multibeam data

RV Maria S. Merian (MSM63) | April - May 2017 (British North Sea): Acquisition of 2D and OBS seismic data, multibeam and sediment echosounder data

RV Sonne (SO241) | June - July 2015 (Gulf of California): Acquisition of 2D and OBS seismic, multibeam and sediment echosounder data, sediment coring and Hybis surveying

RV Ocean Researcher V (ORV-1415) | September - October 2014 (South China Sea): Acquisition of 2D, 3D and OBS seismic data

FS Alkor (AL427) | November 2013 (German Baltic Sea): Acquisition of 2D seismic, multibeam and sediment echosounder data

FS Alkor (AL403/404) | October - November 2012 (German and Danish Baltic Sea): Acquisition of 2D and 3D seismic, multibeam, sediment echosounder, side scan sonar data and sediments samples

FS Meteor (M87-2) | May 2012 (Voering Plateau and Nyegga): Acquisition 2D and 3D seismic data, OBS, multibeam and magnetotelluric data and Hybis video dives

FS Meteor (M86-3) | January – February 2012 (Adriatic Sea): Acquisition of three OBS and OBH refraction seismic profiles

FS Alkor (AL381) | October 2011 (German Baltic Sea): Acquisition of seismic, side scan sonar data and sediments samples

FS Alkor (AL374) | May - June 2011 (Norwegian North Sea): Acquisition of sedimemt echosounder and multibeam data

FS Alkor (AL360) | September 2010 (German Baltic Sea): Acquisition of seismic, side scan sonar data and sediments samples

RRS James Cook (JC45/46) | April – May 2010 (Caribbean Sea): Collection of 3D and 2D seismic, swath bathymetry and side scan sonar data

FS Poseidon (P393) | January 2010: (Alboran Sea and Gulf of Cardiz): Recovery and deployment of OBS networks

FS Heincke (HE306) | June 2009 (German North Sea): Acquisition of seismic, side scan sonar and OBS data

Publications

Publications as 1st and 2nd author:

Preine, J., Karstens, J., Hübscher, C., Nomikou, P., Schmid, F., Crutchley, G.J., Druitt, T., and Papanikolaou, D., 2022. Spatio-temporal evolution of the Christiana-Santorini-Kolumbo volcanic field, Aegean Sea. Geology.


Kühn, M., Karstens, J., Berndt, C., and Watt, S.F.L. accepted Seismic reconstruction of seafloor sediment deformation during volcanic debris avalanche emplacement offshore Sakar Island, Papua New Guinea, 2021. Marine Geology. Marine Geology, 439, 106563. doi: 10.1016/j.margeo.2021.106563


Watt, S.F.L., Karstens, J., and Berndt, C., 2021. Volcanic-island lateral collapses and their submarine deposits. In Volcanic Debris Avalanches – From Collapse to hazard, Springer books. doi: 10.1007/978-3-030-57411-6


Karstens, J., Kelfoun, K., Watt, S.F.L., and Berndt, C., 2020. Numerical tsunami simulations of the 1888 Ritter Island sector collapse. International Journal of Earth Sciences, 1-19. doi: 10.1007/s00531-020-01854-4


Watt, S.F.L., Karstens, J., Micallef, A., Berndt, C., Urlaub, M., Desai, A., Klaucke, I., Böttner, C., Day, S., Downes, H., Kühn, M., and Elger, J., 2019. From catastrophic collapse to multi-phase deposition: flow transformation, seafloor interaction and triggered eruption following a volcanic-island landslide. Earth and Planetary Science Letters, 517, pp. 135-147. doi: 10.1016/j.epsl.2019.04.024


Karstens, J., Berndt, C., Urlaub, M., Watt, S.F.L., Micallef, A., Kühn, M., Klaucke, I., Muff, S., Klaeschen, D., Roth, T., Böttner, C., Schramm, B., Elger, J., Ray, M., and Brune, S., 2019. From gradual spreading to catastrophic collapse - 3D seismic reconstruction of the 1888 Ritter Island volcanic sector collapse. Earth and Planetary Science Letters, v. 517, pp. 1-13. doi: 10.1016/j.epsl.2019.04.009


Karstens, J., Haflidason, H., Becker, L., Berndt, C., Rüpke, L., Planke, S., Liebetrau, V., Schmidt, M., and Mienert, J., 2018. Glacigenic sedimentation pulses triggered post-glacial gas hydrate dissociation. Nature Communications, 9 (635), doi: 10.1038/s41467-018-03043-z


Vielstädte, L., Karstens, J., Haeckel, M., Schmidt, M., Liebetrau, V., Reimann, S., Linke, P., McGinnis, D., and Wallmann, K., 2015. Quantification of methane emissions at abandoned gas wells in the Central North Sea. Marine and Petroleum Geology, v. 68, pp. 848-860. doi: 10.1016/j.marpetgeo.2015.07.030


Karstens, J., and Berndt, C., 2015. Seismic chimneys in the Southern Viking Graben – Implications for palaeo fluid migration and overpressure evolution. Earth and Planetary Science Letters, v. 412, pp. 88-100. doi: 10.1016/j.epsl.2014.12.017


Karstens, J., Crutchley, G.J., Berndt, C., Talling, P.J., Watt, S.F.L., Hühnerbach, V., Le Friant, A.L., Lebas, E., Trofimovs, J., and Watt, S.F.L., 2013. Emplacement of pyroclastic deposits offshore Montserrat: Insights from 3D seismic data. Journal of Volcanology and Geothermal Research, v. 257, pp. 1-11. doi: 10.1016/j.jvolgeores.2013.03.004


Crutchley, G.J., Karstens, J., Berndt, C., Talling, P.J., Watt, S.F.L., Vardy, M.E., Hühnerbach, V., Urlaub, M., Sarkar, S., Klaeschen, D., Paulatto, M., Le Friant, A., Lebas, E., and Maeno, F., 2013. Insights into the emplacement dynamics of volcanic landslides from high-resolution 3D seismic data acquired offshore Montserrat, Lesser Antilles. Marine Geology, v. 335, pp. 1–15. doi: 10.1016/j.margeo.2012.10.004