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Artigo • Rev. bras. meteorol. 35 (4) • Oct-Dec 2020 • https://doi.org/10.1590/0102-77863540065   copy

Parâmetros Biofísicos Aplicados no Parque Nacional da Serra das Confusões, Piauí-Brasil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The objective of this work is to evaluate the biophysical parameters, rainfall and surface temperature in the vegetation conditions, in the Serra das Confusões National Park (SCNP), Piau-NEB. With the aid of the images obtained from the satellite Landsat 8 it was possible to calculate the Normalizes Difference Vegetation Index (NDVI) and the surface temperature (Ts). The SCNP rainfall presented a well-defined seasonality, dry and rainy seasons, which play a crucial role in the vegetation conditions of the SCNP. The NDVI class (> 0.693) had the greatest reduction o the coverage area around 72.7%, while the classes (0.347-0.433) and (0.433-0.52) had an increase of 34.7% and 31, 8%, respectively. In addition, it was clear that vegetation condition influenced the Ts of the region.

Keywords:
vegetation index; surface temperature; orbital sensors

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