Mapping South America's Drylands through Remote Sensing - A Review of the Methodological Trends and Current Challenges. - Khalil Ali Ganem; Yongkang Xue; Ariane de Almeida Rodrigues; Washington Franca-Rocha; Marceli Terra de Oliveira; Nathália S. Carvalho; Efrain Yury Turpo Cayo; Marcos Reis Rosa; Andeise Cerqueira Dutra; Yosio Edemir Shimabukuro (Remote. Sens., 2022)