1. Research Center on Remote Sensing and Meteorology (CEPSRM), Federal University of Rio Grande do Sul (UFRGS), Bento Gonçalves Avenue, 9500, 91501-970, Porto Alegre, Brazil;
2. Superior School of Agriculture “Luiz de Queiroz” (ESALQ) University of Sao Paulo (USP), Pádua Dias Avenue, 11, 13418-900, Piracicaba - SP, Brazil;
3. Hydraulic Research Institute (IPH), Federal University of Rio Grande do Sul (UFRGS), Bento Gonçalves Avenue, 9500, 91501-970, Porto Alegre, Brazil