AN OBSERVATIONAL STUDY OF THE FREQUENCY, INTENSITY, AND CLIMATOLOGY OF EXTREME RAINFALL EVENTS OVER THE AMAZON
DOI:
https://doi.org/10.5902/2179460X16233Keywords:
Eventos extremos de chuva, climatologia, AmazôniaAbstract
http://dx.doi.org/ 10.5902/2179460X16235
The aim of this study was to identify the extreme rainfall events based on precipitation intensity, with the purpose of determining and classifying the frequency of these events, as well as their climatology. For this purpose we have used data of total daily rainfall derived from MERGE product of the National Institute for Space Research, for the period 1998-2012, focusing the Brazilian Amazon region. After the identification of extreme rainfall events, it was possible to classifying these events into extreme events type I, type II and type III. It was observed that the three types of extreme rainfall have a mean maximum on specific regions of the Amazon, such as the west, southwest and southeast of the state of Amazonas and the northeastern states of Pará and Amapá states. A more detailed analysis showed that type I extreme rainfall, in spite of more frequent, yield small quantities of mean rainfall in the Amazon basin (34,6 mm), when compared to the rare type III extreme rainfall (85,1 mm).
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