SÉRIES TEMPORAIS DO ENHANCED VEGETATION INDEX E CARACTERIZAÇÃO DO USO DO SOLO NO ESTADO DO ESPÍRITO SANTO

Autor:	Alexandre Candido Xavier, Yhasmin Gabriel Paiva, Aristides Ribeiro, André Quintão Almeida, Fábio da Silveira Castro
Rok vydání:	2010
Předmět:	Atmosphere Wet season Hydrology Geography Index (economics) Phenology Dry season General Medicine Physical geography Enhanced vegetation index Vegetation Spatial distribution
Zdroj:	Revista ACTA Geográfica. :25-33
ISSN:	2177-4307 1980-5772
Popis:	Enhanced Vegetation Index images are made by means of bands in the electromagnetic spectrum in the range of blue, red and near infrared. This index minimizes the response effects of soil and atmosphere, besides having high response to phenological variations. This study aims to use the vegetation index modified to characterize the spectrum and temporal behavior of different uses of soil in the State of Espirito Santo – Brazil between June 200 and June 2008. All together, a 16-day series summarizing 192 index images was generated. Random points with good spatial distribution were generate and ranked according the type coverage, using LANDSAT/TM images. The results show that the Enhanced Vegetation was sensitive to the phenological variations of the vegetation, with lower values for the dry season in relation to the rainy season. Similar spectrum behavior was also observed among the different uses of soil for both the Natural Forest and Planted Forest. The lowest index values were found for the category which includes the water bodies very close to the unit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c8f157684fa1eb471386f1d8db220a35 https://doi.org/10.5654/actageo2010.0407.0002 Zobrazit plný text záznamu