Normalized difference vegetation index for drought monitoring. MAUSAM, [S. l.], v. 38, n. 2, p. 239–240, 1987. DOI: 10.54302/mausam.v38i2.3039. Disponível em: https://mausamjournal.imd.gov.in/index.php/MAUSAM/article/view/3039. Acesso em: 22 dec. 2025.