MINIMUM TEMPERATURES CLASSIFICATION AT THE PYRENEES AREA USING EMPIRICAL ORTHOGONAL FUNCTIONS (EOF)

摘要

In order to forecast temperature in complex terrain areas is important to determine the most likely areas to have Cold Air Pool (CAP) formation. In this work Empirical Orthogonal Functions (EOF) were used to determine the spots where the temperature trends to cool more than the surroundings. The EOF decomposition is applied to the minimum temperature time series obtained from Automatic Weather Stations (AWS) located in different altitudes along the Segre Valley in the Pyrenees. The EOF decomposition separates the original time series among its variation patterns, which is useful to separate the different sources of variation.