PROBABILITY OF PRECIPITATION FOR THE MICROREGION OF TANGARÁ DA SERRA, MATO GROSSO STATE, BRAZIL

Authors

  • Juliano Araújo Martins UNEMAT - Universidade do Estado de Mato Grosso
  • Rivanildo Dallacort UNEMAT - Universidade do Estado de Mato Grosso
  • Miriam Hiroko Inoue UNEMAT - Universidade do Estado de Mato Grosso
  • Adalberto Santi UNEMAT - Universidade do Estado de Mato Grosso
  • Evandro Marcos kolling Instituto Federal Tecnológico do Paraná – IFET
  • Admar Júnior Coletti UNEMAT - Universidade do Estado de Mato Grosso

Keywords:

Gamma distribution, expected precipitation, agricultural planning

Abstract

Due to the irregular occurrence of rainfall in Brazilian Savannas, associated with a vast range of models that aim to evaluate it, this study was carried out to estimate the monthly amount of rainfall, at different probability levels, in Tangará da Serra, Mato Grosso State, Brazil, by using the Gamma function. Pluviometric data from 1970 to 2007 (38 years), provided by the Agência Nacional de Águas (ANA), collected in a pluviometric station located at 14°37’55”S, 57°28’05”W, and 488 m of altitude, were used. The adjustment analysis between estimated and observed data was carried out in accordance with the Kolmogorov-Smirnov adherence test, at 5% of significance, resulting in no significant differences for monthly periods, including those with several values equal or close to zero, allowing the Gamma distribution use. The highest expected monthly precipitation levels took place from November to March (rainy season), while from June to August were noticed the lowest ones (dry period). The other months can be considered as intermediaries between the dry and rainy seasons.

KEY-WORDS: Gamma distribution; expected precipitation; agricultural planning.

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Author Biographies

Juliano Araújo Martins, UNEMAT - Universidade do Estado de Mato Grosso

Acadêmico do curso de Agronomia / Bolsista de Iniciação Científica / FAPEMAT – Fundação de Amparo a Pesquisa do Estado de mato Grosso

Rivanildo Dallacort, UNEMAT - Universidade do Estado de Mato Grosso

Doutor em Agronomia, Dept. Agronomia, Universidade do Estado de Mato Grosso - UNEMAT, Campus Universitário de Tangará da Serra.

Miriam Hiroko Inoue, UNEMAT - Universidade do Estado de Mato Grosso

Doutora em Agronomia, Dept. Agronomia, Universidade do Estado de Mato Grosso - UNEMAT

Adalberto Santi, UNEMAT - Universidade do Estado de Mato Grosso

Doutor em Agronomia, Dept. Agronomia, Instituto Federal Tecnológico do Paraná – IFET

Evandro Marcos kolling, Instituto Federal Tecnológico do Paraná – IFET

Doutor em Agronomia, Dept. Agronomia, Instituto Federal Tecnológico do Paraná – IFET

Admar Júnior Coletti, UNEMAT - Universidade do Estado de Mato Grosso

Acadêmico do curso de Agronomia / Bolsista de Iniciação Científica / PIBIC/CNPQ, Universidade do Estado de Mato Grosso – UNEMAT

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Published

2010-09-14

How to Cite

MARTINS, J. A.; DALLACORT, R.; INOUE, M. H.; SANTI, A.; KOLLING, E. M.; COLETTI, A. J. PROBABILITY OF PRECIPITATION FOR THE MICROREGION OF TANGARÁ DA SERRA, MATO GROSSO STATE, BRAZIL. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 40, n. 3, p. 291–296, 2010. Disponível em: https://revistas.ufg.br/pat/article/view/6365. Acesso em: 21 dec. 2024.

Issue

v. 40, n. 3, Jul./Sep. 2010

Section

Biosystems Engineering

License

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