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 M-Day took place on Monday, November 15th, 2021. On that day we met to exchange ideas on new mathematical concepts and new numerical methods. The low Corona Warnstufe in Bremen made it possible to meet in person and experience a normal conference-like retreat.
Our newsletter comes out every three months and includes information about the work done in our project and more.
From Wednesday to Friday, September 22-24, the first Annual Retreat of our TRR 181 after 2 years absence due to the Corona pandemic took place in Lüneburg, Seminaris Hotel.
Gender and Diversity in AI: „Hello Siri, do machines have prejudices?“
The TRR 181 seminar is held every other week in the semester and as announced during semester break. The locations of the seminar changes between the three TRR181 locations, but is broadcastet online for all members of the TRR.
10th Warnemünde Turbulence Days (WTD) on "Interfaces and turbulent boundary layers", from December 5 to 9, 2021
Prugger, A., Rademacher, J. D. M., & Yang, J. (2021): Geophysical fluid models with simple energy backscatter: explicit flows and unbounded exponential growth. https://arxiv.org/abs/2105.14728
Merckelbach, L.M. and Carpenter, J.R. (2021): Ocean Glider Flight in the Presence of Surface Waves. J. Atmos. Ocean Tech., 38(7), 1265-1275, doi: 10.1175/JTECH-D-20-0206.1.
Funke, C.S., Buckley, M.P., Schultze, L.K., Veron, F., Timmermans, M.E., & Carpenter, J.R. (2021): Pressure fields in the airflow over wind-generated surface waves. J. Phys.Oceanogr., doi: 10.1175/JPO-D-20-0311.1.