Typification of the coastal and water regions around the Iberian Peninsula.

F.X.Niell°, R. Priego°°
°University of Malaga
°°Instituto de Ciencias Marinas, CSIC.Vigo

Two clustering methods has been used to typify the coastal and water regions around the Peninsula Iberica.The clustering method of LOICZ gives a clear distinction between demographic overcrowded areas and Mediterranean and Atlantic regions, anomalies related with upwelling areas are well discriminated using this method. A filtering procedure of the raw data avoiding redundancies has improved the results. The combination of the clustering method with the Principal Component Analysis ( PCA ) or eigenanalysis allows the detection of transitional areas between the areas clearly defined with the use of clustering alone. Some critical evaluations on the advantage of the two methods permit to focus future applications and developments.