Ferreira, Thomás, Frederico Di Pace, Jéssica Delgado, and Thaíse Gomes. 2015. “PRELIMINARY ANALYSIS OF DROUGHT IN 2012 IN SEMI-ARID OF ALAGOAS USING INDICES OF VEGETATION THROUGH SENSOR MODIS”. Journal of Hyperspectral Remote Sensing 5 (1):001-012. https://doi.org/10.29150/jhrs.v5.1.p001-012.