Mini-weather shelters: statistical analysis for comparison and evaluation of efficiency

In the context of the disciplines of climatology of the Department of Geography of University of Sao Paulo, site investigations allow students to practice climatologic analysis using electronic sensors installed in meteorological mini-shelters, designed by tutors and post graduate students. Based on the models of meteorological mini-shelters described as Tarifa (TAR), Abrigo de Baixo Custo (ABC) [Shelter of Low Cost] e Quatro Águas(4AS) [Four Waters], this research made a comparative analysis of registered data, using as reference the Automatic Meteorological Station installed on the premises of the Geography building. The efficiency data from these mini-shelters demonstrated that, although all presented different results in relation to the Automatic Meteorological Station (EMA), they also presented a performance very satisfactory around 80% of all sampled period, allowing the achievement of good results for use in academic and technical work