Evaluation of the Operational Simplified Surface Energy Balance Model for Pastureland Evapotranspiration Mapping and Drought Monitoring in North Central Kentucky

Table 1

Descriptive monthly statistics of evapotranspiration (mean ± SEM, range, minimum (min), maximum (max), and sum of ET measured (EC, eddy covariance), simplified surface energy balance (SSEBop) model, and reference Penman–Monteith (P–M) evapotranspiration) for 2016, 2017, and 2018.

		Mean ± SEM	Range	Min	Max	Sum
2016	EC	57.37 ± 12.21	111.83	5.24	117.07	688.46
	SSEBop	55.30 ± 15.75	131.00	0.00	131.00	663.50
	P–M	102.0 ± 9.44	104.54	45.87	150.41	1223.95
2017	EC	49.67 ± 10.94	99.16	2.53	101.69	596.00
	SSEBop	55.54 ± 15.03	128.40	0.00	128.40	666.45
	P–M	109.08 ± 13.34	176.80	47.01	176.80	1308.97
2018	EC	45.52 ± 10.90	98.39	3.21	101.60	546.18
	SSEBop	57.42 ± 15.09	129.0	0.00	129.00	689.00
	P–M	89.77 ± 12.55	134.08	11.21	145.29	1077.28

SEM = standard error of the mean.