EVALUATION OF EVAPOTRANSPIRATION PRODUCTS BASED ON MOD16 REMOTE SENSING AND GLEAM IN LBA PROGRAM FLOXING FLOW SITES
Ciência E Natura
EVALUATION OF EVAPOTRANSPIRATION PRODUCTS BASED ON MOD16 REMOTE SENSING AND GLEAM IN LBA PROGRAM FLOXING FLOW SITES
Autor Correspondente: Adriana Aparecida Moreira | [email protected]
Palavras-chave: lba, modis gleam, validation
Resumos Cadastrados
Resumo Inglês:
The objective of this work was to analyze the performance of the evapotranspiration (ET) datasets of the MOD16 and GLEAM models at nine sites in which turbulent flow monitoring towers are installed. For this purpose, the data of both products were purchased and the daily averages calculated. The ET estimated by the models were compared to those observed in the turbulent flux monitoring towers of the Biosphere-Atmosphere Large Scale Project in the Amazon (LBA). Statistical analysis was performed through the correlation coefficient (R), mean square error (RMSE) and mean error (BIAS). The results indicate that the two ET products analyzed are able to represent in general the behavior of ET observed in the flux towers. MOD16 and GLEAM present similar statistics, when compared with the observed data. Both model estimates and turbulent flow towers are subject to the uncertainties that influence the analysis of ET products.
