Estação Chuvosa e Ocorrência de Veranicos em Araçuaí, Itamarandiba e Pedra Azul, na Porção Mineira da Bacia do Rio Jequitinhonha (Rainy Season and Occurrence of Dry Spells in Araçuaí, Itamarandiba and Pedra Azul, in the Jequitinhonha River Basin, in...)
DOI:
https://doi.org/10.26848/rbgf.v4i5.232715Keywords:
Estação chuvosa, veranicos, bacia do rio JequitinhonhaAbstract
Este artigo procura contribuir para a delimitação da duração da estação chuvosa e verificação da ocorrência de veranicos na porção mineira da bacia do rio Jequitinhonha. Acredita-se que um melhor conhecimento da temática poderá subsidiar iniciativas de planejamento do uso dos recursos naturais na região. Foram selecionados dados dos postos pluviométricos da Agência Nacional de Águas (ANA) localizados mais próximos dos municípios de Araçuaí, Itamarandiba e Pedra Azul. Tais localidades representam satisfatoriamente três compartimentos paisagísticos distintos da bacia do rio Jequitinhonha. Os resultados indicam importantes especificidades climáticas nas três localidades em relação à distribuição temporal da precipitação, especialmente quanto ao início e fim do período chuvoso e sua duração. Além disso, as mesmas são submetidas a freqüentes veranicos de intensidades relativamente fortes, que são muitas vezes prejudiciais às atividades agrícolas e outros aproveitamentos hídricos que exigem delimitação de períodos em que o clima é o fator limitante.
Palavras-chave: Estação chuvosa, veranicos, bacia do rio Jequitinhonha.
Rainy Season and Occurrence of Dry Spells in Araçuaí, Itamarandiba and Pedra Azul, in the Jequitinhonha River Basin, in the Portion of the State of Minas Gerais
ABSTRACT
This article seeks contribute for definition of the duration of the rainy season and verification of the occurrence of dry spells in the Jequitinhonha river basin, in the portion of the state of Minas Gerais. It’s believed that a better understanding of thematic can subsidize initiatives of planning of use of natural resources in the region. This study use data from the climatic stations of the Agência Nacional de Águas (ANA), located near the municipalities of Araçuaí, Itamarandiba and Pedra Azul. These areas represent satisfactorily compartments landscaped distinct of the Jequitinhonha river basin. The results indicate important specificities of the climate in the three locations in relation the temporal distribution of precipitation, especially on the beginning and end of the rainy season and it’s duration. Moreover, those are subject to frequent dry spells of intensities relatively strongs, which are often harmful to agricultural activities and other uses of water resources that require delimitation of periods when the climate is the limiting factor.
Keywords: rainy season, dry spells, Jequitinhonha river basin.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2012 Mariana Mendes Silva, Vanderlei de Oliveira Ferreira
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with Revista Brasileira de Geografia Física agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
Authors are permitted to make their work available online before or during the editorial process, on academic social networks, digital repositories, or preprint servers. After publication in Revista Brasileira de Geografia Física, authors are expected to update the preprint or postprint versions on the platforms where they were originally made available, providing a link to the final published version and any other relevant information, with proper recognition of authorship and the initial publication in this journal.
You are free to:
Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
