Saber
versão impressa ISSN 1315-0162
Resumo
LOPEZ-MONROY, Fabiola e TROCCOLI-GHINAGLIA, Luis. Approach about climate at Margarita island and its importance in ocean processes. Saber [online]. 2014, vol.26, n.4, pp.465-471. ISSN 1315-0162.
In order to identify temporal weather patterns in Margarita Island, Venezuela, time series were analyzed between 1966 and 2012 for the accumulated precipitation and evaporation, and between 1975 and 2008 for the average wind speed. The Cluster analysis performed showed a marked seasonality: January to June form a dry period characterized by low precipitation (95 mm period-1), and from July to December there is a moderate rainy period (264 mm period-1), which intensifies during the last two months in response to a latitudinal decline of Arctic cold fronts, with both interdecadal cycles of droughts and extreme rainfall. Evaporation was high surpassing precipitation throughout the year (276 and 249 mm period-1 in the dry and rainy periods, respectively). The season of highest average wind speed corresponded to February to June ( = 6.1 m s-1), a period with appropriate wind speed to generate upwelling, while during the rest of the year the winds are weaker (
= 4.6 m s-1).
Palavras-chave : Meteorology; precipitation; winds; metocean.