Transient simulation of the REMO regional climate model and its evaluation over Hungary

A couple of years ago the REMO model originally developed by the Max Planck Institute for Meteorology (MPI-M) in Hamburg was adapted at the Hungarian Meteorological Service with the aim to become an essential tool for providing realistic regional climate estimations for the next few decades particularly for the area of the Carpathian Basin. This area of interest is especially important considering the fact that one of the largest uncertainties in climate projections can be found over the Carpathian Basin, as it had already been identified by former large international climate projects. Various versions of the REMO model have already been tested all over the world for different geographical domains, however, recently further validations and tests have been started also at the Hungarian Meteorological Service in the framework of the CLAVIER EU project. The article is dealing with the 100-year transient simulation of REMO5.0 model for the period 1951-2050. The lateral boundary conditions for the domain covering continental Europe with 25 km horizontal resolution were provided by the ECHAM5/MPI-OM global atmosphcre-ocean general circulation model with the use of A1B SIZES scenario for the future. On the one hand, present article is dedicated to summarize in detail the validation results of the experiment for the past climate, and on the other hand, to introduce the preliminary climate change estimations based on REMO results for the future. Special emphasis is put on evaluating the performance of the REMO model for the Carpathian Basin in general and for Hungary in particular.