|Contact:||Dr. Ingo Kirchner EMail Phone +49-30-838-71151|
|Markus Thürkow EMail Phone +49-30-838-54848|
MesoTel aims to improve the accuracy of atmospheric dynamics and of the deterministic forecast of seasonal means over Europe by taking into account the relevant feedback of the atmospheric meso-beta-scale dynamics on the large to planetary scales and vice versa in the climate system on the northern hemisphere.
In particular, the relevance of the meso-beta-scale atmospheric dynamics for the development of extremely growing Rossby wave trains affecting the ocean dynamics and the mean atmospheric flow shall be investigated and a contribution to our understanding of the mechanisms determining the interannual to decadal predictability shall be made.
Hereto a two-way coupled model system consisting of the atmosphere-ocean general circulation model ECHAM/MPIOM and of the regional climate model COSMO-CLM shall be developed. The COSMO-CLM is a model system for operational numerical weather prediction and regional climate modelling designed for the meso-beta scales down to approx. 1km. The ECHAM/MPIOM is designed for simulation of the large to meso-scale climate dynamics down to resolutions of the atmosphere of approx. 50km. In the two-way coupling mode all prognostic model variables (primitive equation variables and humidity components) will be exchanged between the independent models after each ECHAM time step. In this way the ECHAM/MPIOM solution is modified continuously within the COSMO-CLM simulation domain.
Development of a two-way nested model version ECHAM/MPIOM with COSMO-CLM
Analysis of the relevance of the meso-scale dynamics for large scale dynamics over Europe
Improvement of the inter-annaul to decadal predictability of seasonal means for Europe