Temporal analysis of desertification vulnerability in Northeast Brazil using Google Earth Engine. - Marks Melo Moura; Letícia Siqueira Walter; Tarcila Rosa da Silva Lins; Emmanoella Costa Guaraná Araujo; Ernandes Macedo da Cunha Neto; Gabriel Mendes Santana; Iací Dandara Santos Brasil; Thiago Cardoso Silva (Trans. GIS, 2022)