CHARACTERIZATION OF TEMPORAL RAINFALL DISTRIBUTION IN FLORIANÓPOLIS, SANTA CATARINA, BRAZIL

Autores

  • Álvaro José Back Epagri/Estação Experimental de Urussanga http://orcid.org/0000-0002-0057-2186
  • Maria Laura Guimarães Rodrigues Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)

DOI:

https://doi.org/10.5380/rbclima.v28i0.73260

Palavras-chave:

Hyetograph, drainage, advance coefficient, design rainfall, Chicago method

Resumo

Temporal rainfall distribution is an important information for the preparation of the design hyetograph, directly influencing peak flow. This study analyzes the temporal rainfall distribution of Florianópolis city. We used rainfall data from 1986 to 2012 obtained from the Brazilian National Meteorological Institute (code 83897). Heavy rainfall events were classified and individualized, and intensities were determined at each 5% interval of the duration. Rainfall was classified in Huff quartiles and identified by season and duration. Rainfall accumulation curves in the 10-90 percentiles were determined as well as 50% probability curves for each season and duration. The results showed that type I rainfall is the most frequent and that summer rains have a more anticipated pattern. Important differences were found between rainfall durations. The advance coefficient varies with rainfall duration, and averaged 0.389

Biografia do Autor

Álvaro José Back, Epagri/Estação Experimental de Urussanga

Professor do Programa de Pós-Graduação em Ciências Ambientais da Universidade do Extremo Sul Catarinense (PPGCA/UNESC), Pesquisador da Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)

Maria Laura Guimarães Rodrigues, Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)

Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina, Centro de Informações de Recursos Ambientais e de Hidrometeorologia de Santa Catarina, Florianópolis, Santa Catarina, Brasil

Downloads

Publicado

2021-04-06

Como Citar

Back, Álvaro J., & Rodrigues, M. L. G. (2021). CHARACTERIZATION OF TEMPORAL RAINFALL DISTRIBUTION IN FLORIANÓPOLIS, SANTA CATARINA, BRAZIL. Revista Brasileira De Climatologia, 28. https://doi.org/10.5380/rbclima.v28i0.73260

Edição

Seção

Artigos