The objective of this work was to compare the global incident solar radiation data from three micrometeorological towers located in the northern region of the state of São Paulo, with data available from other sources: nearest surface meteorological stations and satellite estimates (model GL1.2). The linear regression between the GL1.2 model radiation estimates with observations in the closed area indicated a better fit than the one obtained with the nearest meteorological station. These results suggest that the GL1.2 model radiation estimates can be used to fill Ki flaws measured in micrometeorological towers and potentially as a forcing in surface schemes and hydrological models applied to watersheds in the region.
