Assessing spatial variability of SO2 field as detected by an air quality network using Self-Organizing Maps, cluster, and Principal Component Analysis

1. Ibarra-Berastegi, G.
2. Sáenz, J.
3. Ezcurra, A.
4. Ganzedo, U.
5. Díaz de Argandoña, J.
6. Errasti, I.
7. Fernandez-Ferrero, A.
8. Polanco-Martínez, J.