Resumo

OJEDA, Mario M.; TEJEDA, Adalberto; MAHE, Moisés  e  RUIZ, Salvador. Análisis preliminar de las tendencias climáticas en tres localidades del estado de Veracruz, y sus posibles causas. Invest. Geog [online]. 1993, n.27, pp.49-68. ISSN 2448-7279.

This paper presents an analysis of the time series of yearly mean temperatures and yearly precipitation during 1923-1988 for Veracruz (19º 12' N, 96º 8' W, 16 masl), Xalapa (19º 32' N, 96º 55' W, 1 420 masl) and Las Vigas (19º 38' N, 97º 5' W, 2 421 masl). In order to weigh in preliminary form the impact of the increase of atmospheric CO₂ concentrations, the presence of El Niño or Southern Oscilation (ENSO), the tropical atmospheric disturbances in the Pacific and the Atlantic Oceans, and the urbanization on both the rainfal and the temperature, we use statistical techniques as smoothing series, box plots, simple correlation and canonical correlation analysis. The conclusions carry out conjetures for future research.

Palavras-chave : Climatic trends; exploratory statistical techniques for time series analysis.