Katja Lohmann

Office

Email: katja.lohmann[at]mpimet.mpg.de

Phone: +49-40-41173-116

Fax: +49-40-41173-298

Room no.: ZMAW 206

 

Mailing Address

Max Planck Institute for Meteorology

Bundesstr. 53

D-20146 Hamburg

Germany

 

Department

The Ocean in the Earth System

 

Research Group

Director's Research Group

Research Interests

Climate variability in the North Atlantic, with particular focus on the subpolar gyre and its exchanges with the Nordic Seas.

Publications

Lohmann, K. and M. Latif (2005): Tropical Pacific decadal variability and the subtropical-tropical cells. Journal of Climate, 18, 5163-5177

 

Lohmann, K. and M. Latif (2007): Influence of El Nino on the upper ocean circulation in the tropical Atlantic Ocean. Journal of Climate, 20, 5012-5018

 

Lohmann, K., H. Drange and M. Bentsen (2009a): Response of the North Atlantic subpolar gyre to persistent North Atlantic Oscillation like forcing. Climate Dynamics, 32, 273-285

 

Lohmann, K., H. Drange and M. Bentsen (2009b): A possible mechanism for the strong weakening of the North Atlantic subpolar gyre in the mid-1990s. Geophysical Research Letters, 36, L15602, doi:10.1029/2009GL039166

 

Sandø, A.B., J.E. Nilsen, Y. Gao and K. Lohmann (2010): Importance of heat transport and local air-sea heat fluxes for Barents Sea climate variability. Journal of Geophysical Research, 115, C07013, doi:10.1029/2009JC005884

 

Langehaug, H.R., P. Rhines, T. Eldevik, J. Mignot and K. Lohmann (2012): Simulated water mass transformation in the North Atlantic Current. Journal of Geophysical Research, 117, C11001, doi:10.1029/2012JC008021

 

Menary, M., W. Park, K. Lohmann, M. Vellinga, M. Palmer, M. Latif and J.H. Jungclaus (2012): A multimodel comparison of centennial Atlantic meridional overturning circulation variability. Climate Dynamics, 38, 2377-2388

 

Nunez-Riboni, I., M. Bersch, H. Haak, J.H. Jungclaus and K. Lohmann (2012): A multi-decadal meridional displacement of the subpolar front in the Newfoundland Basin. Ocean Science, 8, 91-102

 

Robson, J., R. Sutton, K. Lohmann, D. Smith and M. Palmer (2012): Causes of the rapid warming of the North Atlantic Ocean in the mid-1990s. Journal of Climate, 25, 4116-4134

 

Zanchettin, D., C. Timmreck, H. Graf, A. Rubino, S. Lorenz, K. Lohmann, K. Krueger and J.H. Jungclaus (2012): Bi-decadal variability excited in the coupled ocean-atmosphere system by strong tropical volcanic eruptions. Climate Dynamics, 39, 419-444

 

Jungclaus, J.H., N. Fischer, H. Haak, K. Lohmann, J. Marotzke, D. Matei, U. Mikolajewicz, D. Notz and J.S. von Storch (2013): Characteristics of the ocean simulations in MPIOM, the ocean component of the MPI-Earth System Model. Journal of Advances in Modeling Earth Systems, 5, 422-446

 

Lohmann, K., J.H. Jungclaus, D. Matei, J. Mignot, M. Menary, H.R. Langehaug, J. Ba, Y.Q. Gao, O.H. Otterå, W. Park and S. Lorenz (2014): The role of subpolar deep water formation and Nordic Seas overflows in simulated multidecadal variability of the Atlantic meridional overturning circulation. Ocean Science, 10, 227-241

 

Ba, J., N. Keenlyside, M. Latif, W. Park, H. Ding, K. Lohmann, J. Mignot, M. Menary, O.H. Otterå, B. Wouters, D. Salas, A. Oka, A. Belluci and E. Volodin (2014): Multi-model comparison for North Atlantic multi-decadal variability. Climate Dynamics, 43, 2333-2348

 

Jungclaus, J.H., K. Lohmann and D. Zanchettin (2014): Enhanced 20th century heat transfer to the Arctic simulated in the context of climate variations over the last millennium. Climate of the Past, 10, 2201-2213

 

Lohmann, K., J. Mignot, H.R. Langehaug, J.H. Jungclaus, D. Matei, O.H. Otterå, Y.Q. Gao, T.L. Mjell, U.S. Ninnemann and H.F. Kleiven (2015): Using simulations of the last millennium to understand climate variability seen in paleo-observations: Similar variation of Iceland-Scotland overflow strength and Atlantic Multidecadal Oscillation. Climate of the Past, 11, 203-216

 

Gao, Y.Q., J. Sun, F. Li, S. He, S. Sandven, Q. Yan, Z. Zhang, K. Lohmann, N. Keenlyside, T. Furevik and L. Suo (2015): Arctic sea ice and Eurasian climate: A review. Advances in Atmospheric Sciences, 32, 92-114

 

Moreno-Chamarro, E., D. Zanchettin, K. Lohmann and J.H. Jungclaus (2015): Internally generated decadal cold events in the northern North Atlantic and their possible implications for the demise of the Norse settlements in Greenland. Geophysical Research Letters, 42, 908-915

 

Müller, W.A., D. Matei, M. Bersch, J.H. Jungclaus, H. Haak, K. Lohmann, G. Compo, P.D. Sardeshmukh and J. Marotzke (2015): A 20th-century reanalysis forced ocean model to reconstruct North Atlantic multi-decadal climate variability from 1872-2010. Climate Dynamics, 44, 1935–1955

 

Hátún, H., K. Lohmann, D. Matei, J.H. Jungclaus, S. Pacariz, M. Bersch, A. Gislason, J. Ólafsson and P.C. Reid (2016): An inflated subpolar gyre blows life toward the northeastern Atlantic. Progress in Oceanography, 147, 49-66

 

Langehaug, H.R., D. Matei, T. Eldevik, K. Lohmann and Y.Q. Gao (2017): On model differences and skill in predicting sea surface temperature in the Nordic and Barents Seas. Climate Dynamics, 48, 913-933

 

Moreno-Chamarro, E., D. Zanchettin, K. Lohmann and J.H. Jungclaus (2017): An abrupt weakening of the subpolar gyre as trigger of Little Ice Age-type episodes. Climate Dynamics, 48, 727-744

Curriculum vitae

Education

1993:
Erasmus Program: School of Ocean Sciences, University of North Wales, Bangor, UK

1993 - 1999:
Study of physical oceanography, University of Kiel, Germany
Thesis (in German):  Tidal correction of ship-based current measurements

2000-2005:
PhD at the Max Planck Institute for Meteorology, Hamburg, Germany
Thesis: Tropical Pacific/Atlantic climate variability and the subtropical-tropical cells


Work experience

September 2005 - October 2008:

PostDoc at the Nansen Environmental and Remote Sensing Center / Bjerknes Center for Climate Research, Bergen, Norway

EU-FP6 Project DYNAMITE (Understanding the dynamics of the coupled climate system)


since November 2008:

Scientist at the Max Planck Institute for Meteorology, Hamburg, Germany

EU-FP7 Project THOR (Thermohaline overturning circulation - at risk?), 2009-2012

EU-FP7 Project NACLIM (North Atlantic Climate: Predictability of the climate in the North Atlantic/European sector related to North Atlantic/Arctic Ocean sea surface temperature and sea ice variability and change), 2013-2016

EU-H2020 Project PRIMAVERA (Process-based climate simulation: Advances in high-resolution modelling and European climate risk assessment), 2016-2019

EU-H2020 Project BlueAction (), 2017-2020