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vol.22 número3Florística e Fitossociologia em Áreas de Cerradão e Mata Mesofítica na Estação Ecológica de Pirapitinga, MG índice de autoresíndice de assuntospesquisa de artigos
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Floresta e Ambiente

versão impressa ISSN 1415-0980versão On-line ISSN 2179-8087

Resumo

ALMEIDA, Catherine Torres de et al. Assessment of Rainfall Estimates from the TRMM-3B43 Product in the State of Amazonas. Floresta Ambient. [online]. 2015, vol.22, n.3, pp.279-286. ISSN 2179-8087.  http://dx.doi.org/10.1590/2179-8087.112114.

The aim of this study was to evaluate the rainfall data via satellites in Amazonas state, Brazil. To this end, the estimates from the TRMM-3B43 product (2004-2008) were compared with data from seven Conventional Weather Stations (CWS). The comparison was based on the following statistical parameters: Average Error (AE), Root Mean Square Error (RMSE), linear correlation coefficient (r), and Wilmott’s index of agreement (d). The TRMM-3B43 estimates were similar to the surface data and represent well the seasonal variability of rainfall. The data showed high linear correlation (r = 0.83), high index of agreement (d = 0.85), and satisfactory RMSE (66.6 mm/month). Therefore, rainfall estimates from the TRMM-3B43 product can be used as an alternative source of quality data.

Palavras-chave : Amazon; rainfall; remote sensing; validation.

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