Abstract

DIAZ, Diana  and  VILLEGAS, Nancy. CANONICAL CORRELATION BETWEEN LARGE SCALE CLIMATE OSCILLATIONS AND SURFACE METEOROLOGICAL VARIABLES IN COLOMBIA. rev.udcaactual.divulg.cient. [online]. 2015, vol.18, n.2, pp.543-552. ISSN 0123-4226.

This study examines relationships between available surface meteorology variables and climatic oscillations using canonical correlation analysis (CCA). The general methodology is explained and applied to three particular cases. Canonical loadings and cross loadings from CCA are evaluated for three meteorological stations located in municipalities of Boyacá and Santander. The tests were carry out using temperature and precipitation data and three climate oscillations the Ocean Niño Index (ONI), North Atlantic Oscillation (NAO), and Quasi-biennial oscillation (QBO). The results show the power of this statistical method to identify associations with an acceptable level of confidence using multivariate approach. The analysis reveals relationships mostly between the variables and the ENSO for all cases and a discrete connection with the NAO and QBO. Add climate indices to the group of independent variables increased the explained variance rates between 3 and 7% and therefore contribute to a better understanding of climate dynamics in the country.

Keywords : Climate variability; atmospheric oscillations; Multivariate analysis; El Niño Southern Oscillation (ENSO).

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