(MDPI, 2023) López Rodríguez, José Javier; Ayuso-Muñoz, José Luis; Goñi Garatea, Mikel; Gimena Ramos, Faustino; Ingeniería; Ingeniaritza
In recent years, numerous studies have been carried out on changes in the temperature and
precipitation regimes and in the frequency of the extreme events that are a result of climate change.
While there is evidence of an increase in temperature at a global level, this globality does not seem to
occur with precipitation. The Igeldo weather station (San Sebastian) has one of the longest recorded
rainfall intensity series in Spain and can be considered as representative of the Cantabrian coast. This
circumstance makes it the ideal place to analyse the trend of the pluviometric regime of this area,
and this was precisely the objective of this study. A total of 165 series of pluviometric parameters
were obtained to characterise the pluviometric regime. The Mann–Kendall and Spearman tests were
applied to evaluate the trends of the different parameters, and the Pettitt test was applied to detect
the existence of change points. In all the series, it was proven that there were no significant trends
or change points. Significant increasing trends were only detected in the series of maximum winter
precipitation. In general terms, it can be concluded that the precipitation regime in Igeldo is quite
stationary in the context of climate change.
