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28<br />

technique, as it is based on the analysis of model data only,<br />

it can be used the same way for scenarios runs even<br />

reproducing possible changes in these dependencies.<br />

The comparison of the results of reanalysis run and control<br />

run for reference period is presented in Fig. 2 for selected<br />

stations from targeted area after the correction to the real<br />

terrain height for temperature. Although annual bias being<br />

just nearly exactly zero, in monthly data the warm bias of<br />

temperature in GCM driven simulation for colder season is<br />

much higher than for reanalysis driven run, while for<br />

summer season it is opposite.<br />

°C)<br />

4<br />

3<br />

2<br />

1<br />

0<br />

Acknowledgements<br />

This work is supported in framework of EC FP6 STREP<br />

CECILIA (GOCE 037005). Some contributions to the<br />

tasks are supported from local sources as well under<br />

Research Plan of MSMT, No. MSM 0021620860, and in<br />

framework of the project supported by Czech Science<br />

Foundation under No. 205/06/P181. We acknowledge the<br />

E-Obs dataset from the EU-FP6 project ENSEMBLES<br />

(http://www.ensembles-eu.org) and the data providers in<br />

the ECA&D project (http://eca.knmi.nl).<br />

References<br />

Giorgi, F., M.R. Marinucci, and G.T. Bates, Development<br />

of a second generation regional climate model<br />

(RegCM2). Part I: Boundary layer and radiative<br />

transfer processes. Mon. Wea. Rev., 121, 2794-2813,<br />

1993a.<br />

temperature bias (<br />

-1<br />

-2<br />

-3<br />

-4<br />

RegCM-ECHAM<br />

RegCM-ERA<br />

Year I II III IV V VI VII VIII IX X XI XII<br />

MONTH<br />

Giorgi, F., M.R. Marinucci, G.T. Bates, and G. DeCanio,<br />

Development of a second generation regional climate<br />

model (RegCM2). Part II: Convective processes and<br />

assimilation of lateral boundary conditions. Mon. Wea.<br />

Rev., 121, 2814-2832, 1993b.<br />

Figure 2. Temperature bias (distribution at 25 Czech<br />

weather stations, after correction for altitude<br />

mismatch, 1961-1990)<br />

4. Future scenarios<br />

Scenarios runs driven by RegCM@25km forced by GCM<br />

ECHAM5 has been performed for 2021-2050 and 2071-<br />

2100 with climate change signal analysis with respect to<br />

control experiment for period 1961-1990. Fig. 3 presents the<br />

preliminary differences based on two decades completed.<br />

Haylock, M.R., N. Hofstra, A.M.G. Klein Tank, E.J. Klok,<br />

P.D. Jones, M. New, A European daily high-resolution<br />

gridded dataset of surface temperature and<br />

precipitation. J. Geophys. Res (Atmospheres), 113,<br />

D20119, doi:10.1029/2008JD10201, 2008.<br />

Huth, R., R. Mládek, L. Metelka, P. Sedlák, Z. Huthová,<br />

S. Kliegrová, J. Kyselý, L. Pokorná, M. Janoušek, T.<br />

Halenka, On the integrability of limited-area<br />

numerical weather prediction model ALADIN over<br />

extended time periods. Studia geoph. geod., 47, 863-<br />

873, 2003.<br />

Figure 3. Changes 2021-2040 (left panels) and 2071-2089 (right panels) against CTRL1961-1970 for<br />

temperature (upper panels) and precipitation (lower panels).

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