Resumo

WATTSN, Christopher  e  SAIZ HERNANDEZ, Juan A.. Monitoreo del desarrollo de trigo en el Valle del Yaqui, Sonora, usando imágenes NOAA AVHRR. Invest. Geog [online]. 1996, n.33, pp.51-61. ISSN 2448-7279.

A series of Normalized Difference Vegetation Index (NDVI) maps were produced using AVHRR images for wheat during the crop cycle October 1993-Winter 1994 in the Yaqui valley, Sonora. The results from analysis of the time series and the value of 0.8 for the correlation coefficient (r² - 0.63) between the values of the NDVI map for March 1991 and field data were considered adequate in this first study, which suggests that the methodology represents a useful option for the real-time monitoring of crops in Northwest Mexico.