Grupo de Meteorología de Santander

Un enfoque multidisciplinar para la meteorología y el clima

ESCENA (http://proyectoescena.uclm.es) was part of the Spanish Strategic action on energy and
climate change. Funded by the Spanish government, this call aimed at providing the scientific basis
for the assessment of regional climate change impacts over Spain (including continental Spain, the
Balearic and Canary islands). The ESCENA project (2008-2011) agglutinated the regional climate
modelling efforts. Four different institutions contributed simulations using 4 different Regional Climate
Models (RCMs): Universidad de Castilla-La Mancha (UCLM, PROMES model), Universidad de
Murcia (UMUR, MM5 model), Universidad de Alcalá de Henares (UAHE, REMO model) and
Universidad de Cantabria (UCAN, WRF model).
The boundary forcing came from the Global Climate Model (GCM) simulations generated by the third
Coupled Model Intercomparison Project (CMIP3) for the 4th IPCC Assessment Report (AR4). We
used three different GCMs (ECHAM5-MPIOM, CNRM-CM3 and HadCM3) forced by the A1B, A2, and
B1 emissions scenarios. An interesting feature of the experimental setup in ESCENA was the
GCM/RCM matrix, which was designed to enable the comparison of different RCMs projections with a
single specific change (RCM, scenario, GCM, parameterization). This allows the exploration of the
role of different sources of uncertainty. The RCM simulations cover a common minimum domain
encompassing the whole Spanish territory with a horizontal resolution of 25 Km.
The project focused on the near future, simulating a control period (1950-2000, 1950 left as spin-up
and disregarded in the analyses) forced by the 20C3M historical scenario and continued by a 50-year
period, 2001-2050, of future projection. In this work we present the main results of the project,
focusing on the future climate projection scenarios for impact-relevant variables.