Global and regional climate model simulations in Central Europe in the 18th-20th centuries in comparison with observed and reconstructed climate

Participants:

• Institute of Geography, Faculty of Science, Masaryk University in Brno (Prof. RNDr. Rudolf Brázdil, DrSc.)
• Czech Hydrometeorological Institute, Department of Climatology (RNDr. Aleš Farda, Ph.D.)
• Department of Meteorology, Faculty of Mathematics and Physics, Charles University in Prague (Mgr. Jiří Mikšovský, Ph.D.)

Project aim:

The essential parts of the project are the global and regional climate model integrations focusing on Central Europe in the 18th-20th centuries and their comparison to temperature and precipitation series reconstructed from instrumental measurements, documentary evidence and natural proxy data. The project research will address following questions:

• How reliably can the climate of the 18th-19th centuries be reconstructed from existing measurements and proxies?

• Can the confrontation of past climate model simulations and time series reconstructed from observed data help to improve models? And in case of a positive answer in which aspects and to what extent?

• To which extent are regional and global climate models capable to reproduce temporal and spatial variability of hydrometeorological extremes?

• To which extent is it possible to use the ensemble of simulations to fill in the missing values in time series of natural proxies or documentary data?

• What is the capability of the GCM and RCM to reproduce low and high frequency variability of temperature and precipitation series in Central Europe?

• What are differences in manifestations of natural and anthropogenic climate-forming factors in model outputs and temperature and precipitation (reconstructed and measured) data?

Models utilized at CHMI in the frame of project are:

1. Global Climate Model CNRM-CM5 developed at GMGEC Department of Centre National de Recherches Météorologiques/Météo-France (model ARPEGE as an atmospheric component, model NEMO as an ocean compoment, model TRIP as a river system component, model GELATO as a sea ice model and SURFEX as amodule describing atmosphere interaction with Earth’s surface) 2. Regional Climate Model ALARO-Climate as developed at Czech Hydrometeorological Institute in frame of ALADIN consortium.

2. Regional Climate Model ALARO-Climate as developed at Czech Hydrometeorological Institute in frame of ALADIN consortium.

We hereby acknowledge kind support provided by David Salas y Melia and Stephane Senesi (CNRM-GAME ASTER team)

The project is funded by the Czech Science Foundation under the contract number P209-11-0956.