Avaliação Climática da bacia Hidrográfica do Rio Camaratuba – PB

Abstract

The rainfall in Northeast Brazil shows great variability, so the monitoring of dry and wet periods is necessary, as this is essential to ensure proper management of water resources. In this context, this paper evaluates the climatology of hydrographic basin of the Rio Camaratuba, located on the northern coast of Paraíba state. We used rainfall data from five cities of the period between the years 1995-2010, using the Rainfall Anomaly Index (TCI) developed by Rooy (1965) and adapted by Araújo et al. (2009), as well as, the weather spatiotemporal, and finally applied to addition and 20% reduction on the annual and monthly average precipitation. The quantitative results showed that the negative anomalies years there were only seven and nine were positive anomalies. And as the rainy season the basin Camaratuba, the rainy season occurs between the months from March to July, with June the wettest month with an average rainfall of 195.06 mm. We also observed a dry season between the months from August to February, and August had the lowest rainfall with 9.11 mm, in which the monthly average is 88.33 mm. By applying spatial east region focused most of rains in all scenarios investigated. What about the 20% increase on the average monthly precipitation was observed a score of 106.00 mm and a decrease of 20% was reached to the level of the average adjusted 70.67 mm rainfall.