Resumen
A two-dimesional hydrostatic mesometeorological model has been applied to analyze a typical atmospheric local circulation observed in anorthern zone of the iberian peninsula during the summer. by means of two model simulation with different land-use type distributions, the definitive influence of the aridity of the soils in the central plateau on the intensity and inland penetration of the sea-breeze and on the development of the cuasi-permanent iberian surface thermal low in the summer season is shown.