Towards Consistent Subgrid Momentum Closures ((03) M03)

• Subject Area: Mathematics ; Atmospheric Science ; Oceanography
• Term: since 2016
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 274762653

Energy-consistent parameterisation of ocean eddies remains a major challenge. Previously, we developed a toolbox of momentum closures, test cases, and diagnostics. These new closures considerably improved energetics and hydrography at eddy-permitting resolutions. Now, we will extend the closures across scales, reduce errors in numerical momentum advection, and analyse the transfer of energy between scales and between kinetic and potential energy in the model. Ultimately, we will make the schemes usable across a wide range of resolutions and provide clear recommendations regarding which scheme is best for which purpose.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 181: Energy transfers in Atmosphere and Ocean
• Applicant Institution: Universität Hamburg
• Project Heads: Dr. Sergey Danilov, since 7/2024; Dr. Almut Gaßmann, until 6/2024; Dr. Stephan Juricke; Dr. Janin Jäger, since 7/2024; Dr. Peter Korn, until 6/2024; Professor Dr. Marcel Oliver