RT info:eu-repo/semantics/article T1 The climate change signal in the Mediterranean Sea in a regionally coupled atmosphere-ocean model A1 Parras-Berrocal, Iván A1 Vázquez Medina, Rubén A1 Cabos, William A1 Sein, Dmitry A1 Mañanes-Salinas, Rafael A1 Perez-Sanz, Juan A1 Izquierdo-González, Alfredo A2 Física Aplicada AB We analyze the climate change signal in the Mediterranean Sea using the regionally coupled model REMO-OASIS-MPIOM (ROM; abbreviated from the regional atmosphere model, the OASIS3 coupler and the Max Planck Institute Ocean Model). The ROM oceanic component is global with regionally high horizontal resolution in the Mediterranean Sea so that the water exchanges with the adjacent North Atlantic and Black Sea are explicitly simulated. Simulations forced by ERA-Interim show an accurate representation of the present Mediterranean climate. Our analysis of the RCP8.5 (representative concentration pathway) scenario using the Max Planck Institute Earth System Model shows that the Mediterranean waters will be warmer and saltier throughout most of the basin by the end of this century. In the upper ocean layer, temperature is projected to have a mean increase of 2.7 degrees C, while the mean salinity will increase by 0.2 psu, presenting a decreasing trend in the western Mediterranean in contrast to the rest of the basin. The warming initially takes place at the surface and propagates gradually to deeper layers. Hydrographic changes have an impact on intermediate water characteristics, potentially affecting the Mediterranean thermohaline circulation in the future. PB COPERNICUS GESELLSCHAFT MBH SN 1812-0784 YR 2020 FD 2020-06 LK http://hdl.handle.net/10498/23407 UL http://hdl.handle.net/10498/23407 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 27-feb-2021