<b>Lacunarity analysis of daily rainfall data in Pernambuco, Brazil

Autores

  • Leandro Ricardo Rodrigues de Lucena Universidade Federal Rural de Pernambuco
  • Silvio Fernandes Xavier Junior Universidade Estadual da Paraí­ba
  • Tatijana Stosic Universidade Federal Rural de Pernambuco
  • Borko Stosic Universidade Federal Rural de Pernambuco

DOI:

https://doi.org/10.4025/actascitechnol.v40i1.36655

Palavras-chave:

fractal, meteorology, climatic phenomena.

Resumo

 

Here we report a study of the temporal variation in daily rainfall recorded at meteorological stations in the state of Pernambuco, Brazil using the method of lacunarity to evaluate dry spell distribution. Results indicate coastal region rainfall has lower lacunarity and shows a more homogeneous behaviour with respect to dry spell duration. In the semiarid and dry regions rainfall series demonstrate higher lacunarity, indicating more complex behaviour and greater variation in dry spell duration. We show that clustering based on calculated lacunarity values can be used to identify geographical regions with characteristic temporal variability in rainfall pattern. For Pernambuco, three distinct spatial patterns were identified: one in the Zona de Mata, another in southern Agreste and Sertão Pernambucano, and third in Sertão São Francisco and the northern part of Agreste.

 

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Publicado

2018-09-01

Como Citar

Lucena, L. R. R. de, Xavier Junior, S. F., Stosic, T., & Stosic, B. (2018). <b>Lacunarity analysis of daily rainfall data in Pernambuco, Brazil. Acta Scientiarum. Technology, 40(1), e36655. https://doi.org/10.4025/actascitechnol.v40i1.36655

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Estatí­stica

 

0.8
2019CiteScore
 
 
36th percentile
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0.8
2019CiteScore
 
 
36th percentile
Powered by  Scopus

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