The spatial variability of actual evapotranspiration across the Amazon River Basin based on remote sensing products validated with flux towers

Ecological Processes

Table 4 The RMSE and R² metrics used to validate ET-Amazon for integration periods of 2 months or longer. A footprint of one pixel is considered

Direct measurement
250 m	K34	K67	BAN
RMSE	83.49	147.44	52.89
R²	0.993	0.999	0.98
Residual energy balance closure
250 m	K34	K67	BAN
RMSE	25.55	179.41	123.59
R²	0.999	0.996	0.998
Bowen ratio energy balance closure
250 m	K34	K67	BAN
RMSE	38.21	87.21	95.80
R²	0.999	0.993	0.999