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- Title
Determinação da curva de intensidade-duração-frequência do município de Cruzeiro do Sul - Acre.
- Authors
dos Santos Albrigo, Nayara; Santos Pereira, Maylla Tawanda dos; Dias Soares, Nelma Tavares; Souza Andrade, Gleibson de; de Souza, Vinicius Alexandre Sikora; da Rosa, Ana Lúcia Denardin
- Abstract
Information on extreme rainfall events associated with predictability and probabilities, especially in intensityduration-frequency (IDF) curves, are essential for the development of engineering projects aimed at sanitation, drainage and waterproofing of surfaces, which allow to offer more suitable conditions for dimensioning hydraulic and hydrological works and services. However, much of the North Region of the country does not have this information available or updated. Thus, the objective of this study was to develop the IDF equation for the municipality of Cruzeiro do Sul - AC. A 14-year historical series was used, distributed between 1993 and 2011, such data were analyzed by the Gumbel distribution, the same being related, by means of the daily rain breakdown, for return periods comprising 2 to 100 years and rainfall durations of 5 minutes to 24 hours. In the analysis for the construction of the curve, it was observed that the years 1995 and 2002 corresponded to the years with the highest precipitated height indexes, being 111 mm and 103 mm, respectively, however these events had an estimated return time between 3 and 8 years, which does not denote anomalous events. The IDF curve constructed in the study showed good adherence to the observed data, which proves its use in the region.
- Subjects
PROBABILITY theory; EQUATIONS
- Publication
Revista Ciência e Natura, 2021, Vol 43, p1
- ISSN
0100-8307
- Publication type
Article
- DOI
10.5902/2179460X38301