Reducing Spurious Dissipation and Energetic Inconsistencies in Realistic Ocean Modelling Applications ((05) M05)

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

The subproject will develop analysis methods to quantify the numerically induced part of the thermohaline overturning circulation in ocean models. It will also focus on the detailed diagnosis and elimination of energy leakages created by the numerical algorithms of FESOM and ICON. Consistent methods for constrained velocity interpolation will be developed to reduce spurious horizontal divergences in regridded model data from unstructured meshes. The project will provide ready-to-use solutions and collaborate with S1 and S2 on their implementation and application in the production codes of FESOM and ICON.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 181: Energy transfers in Atmosphere and Ocean
• Applicant Institution: Universität Hamburg
• Project Heads: Professor Dr. Hans Burchard, since 7/2024; Dr. Sergey Danilov; Professor Dr. Armin Iske; Dr. Knut Klingbeil, until 6/2024; Professor Dr. Winnifried Wollner, since 7/2024