Initializing decadal climate predictions with the GECCO oceanic synthesis (2009)
Pohlmann, H., Jungclaus, J., Koehl, A., Stammer, D., Marotzke, J.
This study aims at improving the forecast skill of climate predictions through the use of ocean synthesis data for initial conditions of a coupled climate model. For this purpose, the coupled model...
Long-term polar motion excited by ocean thermal expansion (2009)
Landerer, F., Jungclaus, J. H., Marotzke, J.
Ocean warming is commonly considered unable to excite significant long-term trends in polar motion. Here, however, we argue that this assumption needs to be revised. We demonstrate that steric sea...
Baehr, J., Stroup, A., Marotzke, J.
We investigate if and how the monitoring strategy for the meridional overturning circulation (MOC) implemented at 26 degrees N in the Atlantic can also be applied at a latitude in the South Atlantic....
Warm Paleocene/Eocene climate as simulated in ECHAM5/MPI-OM (2009)
M. Heinemann, J. H. Jungclaus, J. Marotzke
We investigate the late Paleocene/early Eocene (PE) climate using the coupled atmosphere-ocean-sea ice model ECHAM5/MPI-OM. The surface in our PE control simulation is on average 297 K warm and...
J. Baehr, S. Cunnningham, H. Haak, P. Heimbach, T. Kanzow, J. Marotzke
Daily timeseries of the meridional overturning circulation (MOC) estimated from the UK/US RAPID/MOCHA array at 26.5° N in the Atlantic are used to evaluate the MOC as simulated in two global...
The transition from the present-day climate to a modern Snowball Earth (2009)
We use the coupled atmosphere–ocean general circulation model ECHAM5/MPI-OM to investigate the transition from the present-day climate to a modern Snowball Earth, defined as the Earth in modern...
J. Marotzke, W. D. Nordhaus, J. T. Overpeck, D. M. Peteet, R. A. Pielke, R. T. Pierrehumbert, ...
change, and makes the case that abrupt change poses the largest potential threat to society in the future, partly because of our current inability to anticipate abrupt climate change with enough...
Kanzow, T., Hirschi, J.J-M., Meinen, C.S., Rayner, D., Cunningham, S.A., Marotzke, J., ...
The Atlantic Meridional Overturning Circulation (MOC) carries up to one quarter of the global northward heat transport in the Subtropical North Atlantic. A system monitoring the strength of the MOC...
Detecting potential changes in the meridional overturning circulation at 26°N in the Atlantic (2008)
Baehr, J., McInerney, D., Keller, K., Marotzke, J.
Three methods are analyzed for the design of ocean observing systems to monitor the meridional overturning circulation (MOC) in the North Atlantic. Specifically, a continuous monitoring array to...
Timely detection of changes in the meridional overturning circulation at 26°N in the Atlantic (2007)
Baehr, J., Haak, H., Alderson, S., Cunningham, S.A., Jungclaus, J.H., Marotzke, J.
It is investigated how changes in the North Atlantic meridional overturning circulation (MOC) might be reliably detected within a few decades, using the observations provided by the RAPID-MOC 26°N...
Abstract Remote Visualisation of Large Oceanic Datasets (2007)
Lj West, J Stark, Pd Killworth, P Challenor, J Marotzke
The global high-resolution ocean model, OCCAM, has been run by D. Webb and colleagues at the Southampton Oceanography Centre (SOC) for many years. It was configured to resolve the energetic scales of...
Palmer, M.D., Naveira Garabato, A.C., Stark, J.D., Hirschi, J., Marotzke, J.
A regional general circulation model (GCM) of the Indian Ocean is used to investigate the influence of prescribed diapycnal diffusivity (Kd) on quasi-steady states of the meridional overturning...
Numerical models are used to test whether the meridional overturning circulation (MOC) can be reconstructed from boundary densities and the wind stress. In idealized model setups without topography...
Regional dynamic and steric sea level change in response to the IPCC-A 1B scenario (2007)
Landerer, F., Jungclaus, J., Marotzke, J.
This paper analyzes regional sea level changes in a climate change simulation using the Max Planck Institute for Meteorology (MPI) coupled atmosphere–ocean general circulation model ECHAM5/MPI-OM....
Present-day and ice-covered equilibrium states in a comprehensive climate model (2007)
We show that in a comprehensive climate model both the current climate and a completely ice-covered Earth are stable states under today's total solar irradiance (TSI) and CO2 level. We employ the Max...
Ocean bottom pressure changes lead to a decreasing length-of-day in a warming climate (2007)
Landerer, F., Jungclaus, J., Marotzke, J.
We use a coupled climate model to evaluate ocean bottom pressure changes in the IPCC-A1B climate scenario. Ocean warming in the 21st and 22nd centuries causes secular oceanic bottom pressure...
Temporal variability of the Atlantic meridional overturnung circulation at 26.5 degrees N (2007)
Cunningham, S. A., Kanzow, T., Rayner, D., Baringer, M. O., Johns, W. E., Marotzke, J., ...
The vigor of Atlantic meridional overturning circulation (MOC) is thought to be vulnerable to global warming, but its short-term temporal variability is unknown so changes inferred from sparse...
Observed flow compensation associated with the MOC at 26.5 degrees N in the Atlantic (2007)
Kanzow, T., Cunningham, S. A., Rayner, D., Hirschi, J. J. M., Johns, W. E., Baringer, M. O., ...
The Atlantic meridional overturning circulation (MOC), which provides one-quarter of the global meridional heat transport, is composed of a number of separate flow components. How changes in the...
The influence of diapycnal mixing on quasi-steady overturning states in the Indian Ocean (2007)
Palmer, M. D., Garabato, A. C. N., Stark, J. D., Hirschi, J. J. M., Marotzke, J.
A regional general circulation model (GCM) of the Indian Ocean is used to investigate the influence of prescribed diapycnal diffusivity (Kd) on quasi-steady states of the meridional overturning...
Baehr, J., Haak, H., Alderson, S., Cunningham, S. A., Jungclaus, J. H., Marotzke, J.
It is investigated how changes in the North Atlantic meridional overturning circulation (MOC) might be reliably detected within a few decades, using the observations provided by the RAPID-MOC 26...
Lucas, M. A., Hirschi, J. J., Marotzke, J.
re-examined in two ocean general circulation models at coarse resolution in an idealised single-hemisphere setting. Two sets of results are presented, where the surface meridional temperature...
Smith, R. S., Dubois, C., Marotzke, J.
A low-resolution coupled ocean–atmosphere general circulation model (OAGCM) is used to study the characteristics of the large-scale ocean circulation and its climatic impacts in a series of global...
Partnerschaft Erdsystemforschung (2006)
Andrae, M. O., Claussen, M., Heimann, M., Lelieveld, J., Marotzke, J.
Earth system research partnership (2006)
Andrae, M. O., Claussen, M., Heimann, M., Lelieveld, J., Marotzke, J.
Johanna Baehr, Klaus Keller, Jochem Marotzke, J. Baehr, J. Marotzke
Abstract We analyze the ability of an oceanic monitoring array to detect potential changes in the North Atlantic meridional overturning circulation (MOC). The observing array is ‘deployed’ into a...
Ocean circulation and climate in an idealised Pangean OAGCM (2004)
Smith, R. S., Dubois, C., Marotzke, J.
An idealised Pangean configuration is integrated in a coupled ocean atmosphere general circulation model to investigate the form of the ocean circulation and its impacts on the large scale climate...