ABSTRACT
ABSTRACT: We analyzed values of temperature and relative humidity every two hours as month-year-localization, to detect the different microclimates present in the Cathedrals of Salamanca. To avoid the effect of seasonal time series have been carried out 8 different analysis (4 of temperature and 4 of relative humidity) in spring, summer, autumn and winter. The sensors were placed on the outside (environmental station) and inside (different heights inside of the two cathedrals and north and south positions in the Cloister). Canonical biplot was applied to different matrices, where the rows of the tested were divided into 21 groups (populations). When comparing the data from external sensor of the old cathedral (dome), with respect to the data of internal sensors of the building, the fluctuations in relative humidity and temperature were found. There are microenvironments in Cathedrals and the Cloister at some hours and months. There are not differences in the Cloister in spring and the both Cathedrals in winter and autumn.
