Energy does not vanish
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 or vice versa heat results in a force.
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, where small-scale vortices as well as mixing processes they induce need to be considered, without fully understanding where the energy for their creation originates from. This is similar in the atmosphere, the only difference being that air is moving instead of water. Again, local turbulences can drive larger movements or vice versa waves on a larger scale can disintegrate into small structures.
All these processes are important for the Earth’s climate and determine how temperatures will rise in the future.
Being Part of the Team: What TRR 181 PhDs say
Existing climate models show energetic and mathematical inconsistencies which may lead to fundamental errors in climate forecasts. Now is the right time to combine recent efforts in Meteorology, Oceanography and applied Mathematics and to go new ways.
The meeting on 16th-17th, March 2021 is a follow up of the workshop on Un/Balanced Flow Decomposition Methodologies that we organized 2019 in Hamburg.
The DFG decided to support the second phase of our Transregio Project. Now we can continue our research for 3,5 years.
Our TRR 181 Project leader Armin Iske and Postdoc Stephan Juricke published in German Science magazine "Spektrum der Wissenschaft - Magazin für Naturwissenschaft": Wie ein Klimamodell entsteht.
Chrysagi, E., Umlauf, L., Holtermann, P., Klingbeil, K. & Burchard, H. (2021). High‐resolution simulations of submesoscale processes in the Baltic Sea: The role of storm events. J. Geophys. Res.-Oceans, doi: https://doi.org/10.1029/2020JC016411.
Carpenter, J. R. , Rodrigues, A., Schultze, L. K. P., Merckelbach, L. M., Suzuki, N., Baschek, B. & Umlauf, L. (2020). Shear Instability and Turbulence Within a Submesoscale Front Following a Storm. Geophys. Res. Lett., doi: https://doi.org/10.1029/2020GL090365.
Juricke, S., Danilov, S., Koldunov, N., Oliver, M.,Sein, D.V.,Sidorenko, D. & Wang, Q. (2020). A Kinematic Kinetic Energy Backscatter Parametrization: From Implementation to Global Ocean Simulations. J. Adv. Model Earth Sy., 12, e2020MS002175. doi: https://doi.org/10.1029/2020MS002175.