Reliability of MODIS Evapotranspiration Products for Heterogeneous Dry Forest: A Study Case of Caatinga

Table 2

Brief statistical summary and Root Mean Square Error (RMSE) of all nine evapotranspiration models.

Model	Product	Min and max obs. values (mm)	Min and max pred. values (mm)	RMSE (mm)
	Monthly MOD16A2	4.31 to 40.15	0.83 to 32.4	4.91
			4.6 to 35.8	3.68
	Monthly SAFER		4.5 to 28.94	1.97
			5.68 to 34.32	2.86
	8-day MOD16A2	0.83 to 18.95	0.33 to 12.17	2.18
			1.07 to 16.47	1.99
	8-day SAFER		1.06 to 13.02	1.13
			1.49 to 23.3	2.27
	Daily SAFER	0.07 to 1.91	0.12 to 1.45	0.15