Janna Köhler
- Tel: +49 (0)421 218-62150
- Fax: +49 (0)421 218-62165
- Email: jannak [at] uni-bremen.de
Research Interests
- internal wave propagation and energy flux
- variability in the internal wave field and turbulent mixing
- oceanographic processes at hydrothermal vents
- time series measurements
Curriculum Vitae | |
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since 12/2013 | research scientist (Postdoc), Institute of Environmental Physics (IUP), Bremen |
12/2013 | Ph. D. (Dr. rer. nat.) in physics, University of Bremen |
since 02/2010 | research scientist, Institute of Environmental Physics (IUP), Bremen |
10/2009 | diploma in physics, University of Bremen |
2006-2009 | graduate program in physics with emphasis on theoretical physics and oceanography, University of Bremen |
2004-2006 | undergraduate program in physics, Universit of Bremen |
Projects | |
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DFG Transregio 181 "Energy transfer in Atmosphere and Ocean" | Energy transfer through low mode internal waves |
DFG | Temporal variability in the internal wave field and vertical mixing in the North Atlantic |
DFG | Turbulent mixing in the Deep Western Boundary Current of the North Atlantic at 16°N |
Publications |
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Löb, J., J. Köhler, C. Mertens, M. Walter, Z. Li, J.-S. von Storch, Z, Zhao, und M. Rhein (2020), Observations of the low mode internal tide and its interaction with mesoscale flow south of the Azores, J. Geophys. Res. Ocean, doi:10.1029/2019JC015879. |
Mertens, C., J. Köhler, M. Walter, J.-S. von Storch and M. Rhein (2019), Observations and Models of Low Mode Internal Waves in the Ocean, in: C. Eden and A. Iske (eds.), Energy Transfers in Atmosphere and Ocean, Mathematics of Planet Earth 1, Springer Nature Switzerland AG, 127-144, doi:10.1007/978-3-030-05704-6_4. |
Schmid, F., M. Peters, M. Walter, C. Devey, S. Petersen, I. Yeo, J. Köhler, J.W. Jamieson, S. Walker, J. Sültenfuß (2019), Physico-chemical properties of newly discovered hydrothermal plumes above the Southern Mid-Atlantic Ridge (13°-33°S). Deep Sea Research Part I: Oceanographic Research Papers., doi:10.1016/j.dsr.2019.04.010. |
Köhler, J., M. Walter, C. Mertens, J. Stiehler, Z. Li, Z. Zhao, J.-S. von Storch, and M. Rhein (2019), Energy Flux Observations in an Internal Tide Beam in the Eastern North Atlantic. J. Geophys. Res. Ocean, 124, 5747–5764, doi:10.1029/2019JC015156. |
Devey, C.W., N. Augustin, A. Brandt, N. Brenke, J. Köhler, L. Lins, C. Schmidt, and I.A. Yeo (2018), Habitat characterization of the Vema Fracture Zone and Puerto Rico Trench. Deep Sea Research Part II, Topical Studies in Oceanography, 148, 7-20, doi:10.1016/j.dsr2.2018.02.003. |
Köhler, J., G.S. Völker, and M. Walter (2018), Response of the internal wave field to remote wind forcing by tropical cyclones. J. Phys. Oceanogr., 48, 317-328, doi:10.1175/JPO-D-17-0112.1. |
Köhler, J., C. Mertens, M. Walter, U. Stöber, M. Rhein and T. Kanzow (2014), Variability in the internal wave field induced by the Atlantic Deep Western Boundary Current at 16°N. J. Phys. Oceanogr., 44(2), 492-516, doi:10.1175/JPO-D-13-010.1. |
Köhler, J. (2013), Long-term variability of internal waves and diapycnal mixing: The role of the North Atlantic Deep Western Boundary Current. Ph.D. Thesis, University of Bremen (pdf, in english) |
Steinfeldt, R., T. Tanhua, J. L. Bullister, R. M. Key, M. Rhein, and J. Köhler (2010), Atlantic CFC data in CARINA. Earth System Science Data, 2, 1-15, doi:10.5194/essd-2-1-2010. |
Köhler, J. (2009), Hydrothermal fluxes at the 5°S vent site, southern Mid Atlantic Ridge. Diploma Thesis, University of Bremen. |
Participation in Scientific Cruises |
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FS Poseidon, Pos 533-2 | tropical Atlantic | March 2019 | Las Palmas/Spain - Sao Miguel/Azores | PI: J. Köhler |
FS Poseidon, Pos 523 | tropical Atlantic | May 2018 | Sao Miguel/Azores - Sao Miguel/Azores | PI: M. Walter |
FS Poseidon, Pos 516 | tropical Atlantic | August 2017 | Sao Miguel/Azores - Sao Miguel/Azores | PI: M. Walter |
FS Polarstern, PS101 | Arctic | Sept. - Oct. 2016 | Tromsö/Norway - Bremerhaven/Germany | PI: A. Boetius |
FS Maria S. Merian, MSM-43 | subpolar North Atlantic | Mai - Juni 2015 | St. John's/Canada - Nuuk/Greenland | PI: C. Mertens |
FS Sonne, So237 | subtropical Atlantic | Dec 2014 - Jan 2015 | Las Palmas/Spain - Santo Domingo/Dominican Republic | PI: C. Devey |
FS Polarstern, PS86 | Arctic | Jul 2014 | Tromsö/Norway - Tromsö/Norway | PI: A. Boetius |
FS Maria S. Merian, MSM-25 | South Atlantic | Jan - March 2013 | Cape Town/South Africa - Mindelo/Cape Verde Islands | PI: C. Devey |
RV Roger Revelle, RR1209 | Samoa Passage | Jul - Aug 2012 | Apia/Samoa - Apia/Samoa | PI: M. Alford |
FS Meteor, M85/2 | subpolar North Atlantic | Jun - Aug 2011 | Brest/France - St. John's/Canada | PI: D. Kieke |
FS Meteor, M82/2 | subpolarer North Atlantic | Aug - Sep 2010 | St. John's/Canada - Ponta Delgada/Azores | PI: M. Rhein |
FS Arni Fridriksson, SUBPOLAR-09 | subpolar North Atlantic | Nov 2009 | Reykjavik/Island - Reykjavik/Island | PI: A. Ströh |
FS Meteor, M78/2 | subtropical Atlantic | Apr - May 2009 | Port of Spain/Trinidad - Rio de Janeiro/Brazil | PI: R. Seifert |
FS Sonne, SO196 | Okinawa-Trough, Pacific | Feb - Mar 2008 | Guam/USA - Manila/Philippines | PI: G. Rehder |