Climate of the Past www.clim-past.net 1814-9324 1814-9332 7 2 2011 10.5194/cp-7-451-2011 http://www.clim-past.net/7/451/2011/ http://www.clim-past.net/7/451/2011/cp-7-451-2011.html http://www.clim-past.net/7/451/2011/cp-7-451-2011.pdf 451 472 2011-04-29 A regional climate simulation over the Iberian Peninsula for the last millennium J. J. Gómez-Navarro J. P. Montávez montavez@um.es S. Jerez P. Jiménez-Guerrero R. Lorente-Plazas J. F. González-Rouco E. Zorita Departamento de Física, Universidad de Murcia, Murcia, Spain Departamento de Astrofísica y CC. de la Atmósfera, Universidad Complutense de Madrid, Madrid, Spain Helmholtz-Zentrum Geesthacht, Geesthacht, Germany A high-resolution (30 km) regional paleoclimate simulation of the last millennium over the Iberian Peninsula (IP) is presented. The simulation was performed with a climate version of the mesoscale model MM5 driven by the global model ECHO-G. Both models were driven by the same reconstructions of several external forcing factors. The high spatial resolution of the regional model allows climatologists to realistically simulate many aspects of the climate in the IP, as compared to an observational data set in the reference period 1961–1990. Although the spatial-averaged values developed by the regional model are tightly driven by the boundary conditions, it is capable to develop a different realisation of the past climate at regional scales, especially in the high-frequency domain and for precipitation. This has to be considered when comparing the results of climate simulations versus proxy reconstructions. A preliminary comparison of the simulation results with reconstructions of temperature and precipitation over the IP shows good agreement in the warming trends in the last century of the simulation, although there are large disagreements in key periods such as the precipitation anomalies in the Maunder Minimum. 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