Comparison of the spatial distribution of precipitation estimated by an S-band Doppler radar and by a rain gauge network in São Paulo, Brazil

Isohyetal maps of daily accumulated precipitation were made using data collected in January, 2015, by a rain gauge network and an S-band Doppler weather radar. The maps were compared to determine the quality of the precipitation estimated using the radar data. The results indicate that within the study area, the S-band Doppler radar and the rain gauge network produced similar results, suggesting that within certain conditions the weather radar can perform as well as a rain gauge network.