INFLUÊNCIA DE VARIÁVEIS AMBIENTAIS NA OCORRÊNCIA DA DENGUE UTILIZANDO GEOPROCESSAMENTO EM TERESINA, PIAUÍ
The objective of the present study was to evaluate the seasonal distribution of dengue in the city of Teresina in the year 2017, and to make an analysis correlating environmental aspects with the distribution of the disease. The study area corresponds to a semicircle around the urban area of Teresin...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | Brasil |
| Institución: | Universidade Federal de Uberlândia (UFU) |
| Repositorio: | Hygeia (Uberlândia) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.www.seer.ufu.br:article/47771 |
| Acceso en línea: | https://seer.ufu.br/index.php/hygeia/article/view/47771 |
| Access Level: | acceso abierto |
| Palabra clave: | Dengue Sensoriamento remoto Sazonalidade NDWI NDVI |
| Sumario: | The objective of the present study was to evaluate the seasonal distribution of dengue in the city of Teresina in the year 2017, and to make an analysis correlating environmental aspects with the distribution of the disease. The study area corresponds to a semicircle around the urban area of Teresina, distant 288 m from the most peripheral region, being limited on the west by the state of Maranhão. The distribution of the number of dengue cases in the years 2015 to 2017 was evaluated. Rainfall and air temperature were evaluated for the year 2017. Remote sensing and the use of Landsat 8 images were used to estimate the water bodies, by the NDWI index, and the vegetable land cover by the NDVI index, from May to October 2017, considering the rainy season and the dry season. The results showed that the higher incidence of dengue in the first semester of the year is a reflection of the ideal conditions of the air temperature, the higher rainfall, which reflects on the larger surface occupied by water bodies and greater vegetation cover, favoring the development of the vector and disease. The results obtained with the present research clearly indicate the occurrence of the disease correlated with environmental factors and their seasonality. The analysis of this research can help the public power in the control of the vector and consequently of the disease, indicating that in the first half of the year must take more effective measures in the population control of Aedes aegypti. |
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