The energy of a closed system is steady. It is not lost but rather converted into other forms, such as when kinetic energy is transferred into thermal energy. However, this fundamental principle of natural science is often still a problem for climate research. For example, in case of the calculation of ocean currents and circulation, where small-scale vortices as well as diapycnal mixing and the deep convection processes they induce, need to be considered, to compute how heat content is redistributed along the entire water column and how such processes may change in the future. Similarly, in the atmosphere, the conversion of available potential energy into kinetic energy is the key driver of atmospheric dynamics at a variety of scales, from the zonal-mean general circulation to mesoscale convection. Local turbulent processes can drive larger movements and waves on a larger scale can disintegrate into small structures. All these processes are important for the Earth’s climate and determine its evolution in the future.

How exactly the energy transfers between waves, eddies, local turbulence and mixing in the ocean and the atmosphere works, often remains unclear. This session wants to discuss this by inviting contributions from oceanographers, meteorologists, climate modelers, and mathematicians. We are particularly interested in coupled atmosphere-ocean studies, we are also aiming at filling a knowledge gap on deep ocean processes, as well as novel subgrid-scale parameterizations, and studies of the energy budget of the complex Earth system, including the predictability of the global oceanic thermohaline circulation and thus climate variability.

Invited speakers:
Martin Wild, ETH, Zürich, Switzerland
Raffaele Ferrari, MIT, USA
Robert Weller, WHOI and OOI Research Infrastructures, USA

Co-organized as AS2.9/NP6.8/OS4.17
Convener: Christian Franzke | Co-conveners: C. Eden, Valerio Lembo, Nadia Lo Bue, Monika Rhein
| Fri, 12 Apr, 08:30–12:30
Room E2
| Attendance Fri, 12 Apr, 14:00–15:45
Hall X5

Friday, 12 April 2019 | Room E2

Chairperson: Carsten Eden & Monika Rhein
08:30–08:45 |
Remi Tailleux
08:45–09:00 |
Florian Kokoszka, Federico Falcini, Daniele Iudicone, Mireno Borghini, Katrin Schroeder, and Stefania Sparnocchia
09:15–09:30 |
| solicited
| Highlight
Raffaele Ferrari
09:30–09:45 |
Manita Chouksey, Carsten Eden, and Nils Brüggemann
09:45–10:00 |
Lars Umlauf, Jen-Ping Peng, and Peter Holtermann
10:00–10:15 |
Stephan Juricke, Sergey Danilov, Anton Kutsenko, and Marcel Oliver
Coffee break
Chairperson: Nadia Lo Bue & Valerio Lembo
10:45–11:00 |
| solicited
Robert Weller, James Poterma, Albert Plueddemann, Roger Lukas, Fernando Santiago-Mandujano, and Bruce Howe
11:00–11:15 |
Friederike Pollmann, Carsten Eden, and Dirk Olbers
11:15–11:30 |
Jeemijn Scheen and Thomas Stocker
11:30–11:45 |
| solicited
Martin Wild
11:45–12:00 |
Chun Lei Liu
12:00–12:15 |
Marwa Almowafy, Gerd Baumgarten, Kathrin Baumgarten, Manfred Ern, Michael Gerding, Franz-Josef Lübken, and Irina Strelnikova