La precipitación en función de la presión y el relieve entre la Iberia húmeda y seca en el espacio vasco-riojano

The present work is based on the pluviometry of five observatories situated in the zone of climatic transition between the Eastern Cantabric and the Ebro river at its passage throuth La Rioja. These precipitations are related to the atmospheric pressure to establish the spatial differences whose distinctive characteristic is the progressive increase in the anticyclonic precipitations towards the seaside. The variations registered are explained as a consequence of relief and proximity of the ocean