Jane Maria de Carvalho Silveira, Sebastião De Lima Júnior, Emílio Sakai, Edson Eiji Matsura, Regina Célia de Matos Pires, Agmon Moreira Rocha
2013 Irriga  
Palavras-chave: agricultura irrigada, geoprocessamento, Nordeste Paulista, sensoriamento remoto. SILVEIRA, J. M. de C.; LIMA JR, S.; SAKAI, E.; MATSURA, E. E.; PIRES, R. C. M.; ROCHA, A. M. IDENTIFICATION OF CENTER PIVOT IRRIGATED AREAS IN TAMBAÚ-VERDE BASIN BY SENSOR CCD/CBERS Identificação e áreas irrigadas por pivô... Irriga, Botucatu, v. 18, n. 4, p. 721-729, outubro-dezembro, 2013 ABSTRACT The study aimed at identifying and quantifying center pivot irrigated areas in the cities of Casa
more » ... ca, Itobi, Mococa, São José do Rio Pardo, Tambaú and Vargem Grande do Sul, which belong to the Tambaú-Verde basin, located in the Northeastern region of São Paulo state. The identification of irrigated areas was performed based on images of the satellite CBERS 2. Mapping was carried out by visual identification of pivots and conversion of the targets of interest into vectors generated by the CCD image, 155/124 orbit-point, acquisition data in 07/21/2007, with space resolution of 20 m and spectral bands 2, 3 and 4. The UTM and SAD69 coordinate systems, spindle 23 South were adopted. The results showed 420 center pivots and the location of higher pivot groupings in each city, amounting to more than 16 thousand hectares of irrigated area. Approximately eight thousand hectares out of this total are located in the sub-basin Tambaú-Verde. Casa Branca city by itself has 188 pivots in more than 9 thousand hectares, which means that 11% of the territorial area of this city is irrigated by the center-pivot system. Images of the CBERS satellite associated with SIG proved to be efficient tools for mapping and monitoring center-pivot irrigated areas.
doi:10.15809/irriga.2013v18n4p721 fatcat:oo7wzyd5mvbjhgxlbobu5vwcx4