Predominant speed and directions of winds associated with dry and rainy periods in a coastal basin
DOI:
https://doi.org/10.6008/CBPC2179-6858.2021.011.0010Keywords:
Characterization of winds, Wind power, Beaufort international anemometric scale, Seasonality of the winds, Wind disastersAbstract
The wind's speed and direction analysis during dry and rainy periods is a powerful tool in agronomic projects, monitoring, and management of watersheds, wind energy generation, among others. This study aimed to analyze the predominant speeds and directions of wind during dry and rainy periods in the Rio Grande do Sul Coastal Basin (RS). The methodology was based on scientific articles about the climatological variable wind, based on recommendations from the National Water and Basic Sanitation Agency (ANA), and the Meteorology and Hydrology System of the State of Goiás (SIMEHGO). The climatological data used were provided by the National Institute of Meteorology (INMET), collected on each municipality belonging to the Coastal Basin - RS. The results show that the basin presents a predominantly dry behavior, with a rainy period only in January and February, and also an incident wind direction predominantly northeast (NE). Speeds ranged from 0.9 m.s-1 to 6.1 m.s-1, and the maximum speeds recorded in some municipalities were characterized as the tornado level one (values above 17 m.s-1). The average of speeds no longer has great destructive power, unlike the maximum recorded according to the scale of wind disasters – Beaufort International Anemometric Scale. In summary, the Coastal Basin behaves substantially uniformly.
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