Spatial-Temporal Interpolation of Reference Evapotranspiration for Pakistan

Table 7

Models performance according to decade (2006–2015) and SEE for Blaney-Criddle and Hargreaves models, where () indicates statistically significant trends.

	Season	Model	Intercept	Slope		SEE
Bahawalnagar	Dry	BCR	2.46	0.72	0.68	0.82
		HGR	3.37	3.14	0.97	7
	Rainy	BCR	1.37	0.7	0.84	0.3
		HGR	−1.05	2.39	0.93	2.62
	Annual	BCR	0.42	1.05	0.88	0.88
		HGR	−3.38	3.12	0.98	7.49
Bahawalpur	Dry	BCR	2.26	0.78	0.64	0.89
		HGR	3.19	3.17	0.97	7.53
	Rainy	BCR	1.79	0.63	0.84	0.4
		HGR	−0.97	2.34	0.94	2.91
	Annual	BCR	0.54	1.05	0.88	0.98
		HGR	−3.17	3.12	0.98	8.04
DG Khan	Dry	BCR	2.16	0.79	0.76	0.83
		HGR	−3.37	3.14	0.97	7.63
	Rainy	BCR	1.8	0.66	0.84	0.49
		HGR	−0.49	2.32	0.95	2.77
	Annual	BCR	0.82	0.99	0.92	0.96
		HGR	−2.94	3.09	0.98	8.11
Faisalabad	Dry	BCR	4.62	0.37	0.44	1.32
		HGR	−0.34	2.64	0.97	6.9
	Rainy	BCR	2.66	0.31	0.43	0.64
		HGR	0.48	1.89	0.91	2.79
	Annual	BCR	2.18	0.69	0.46	1.47
		HGR	−1.73	2.75	0.9	7.44
Jhang	Dry	BCR	4.8	0.33	0.39	1.29
		HGR	0.05	2.56	0.98	7.03
	Rainy	BCR	2.73	0.28	0.41	0.69
		HGR	0.55	1.88	0.91	2.91
	Annual	BCR	2.35	0.64	0.43	1.47
		HGR	−1.46	2.68	0.9	7.61
Khanpore	Dry	BCR	4.46	0.41	0.43	1.19
		HGR	−0.9	2.78	0.98	7.46
	Rainy	BCR	2.59	0.32	0.36	0.6
		HGR	0.41	1.97	0.91	3.27
	Annual	BCR	1.75	0.75	0.44	1.36
		HGR	−2.53	2.92	0.89	8.14
Lahore APT	Dry	BCR	4.63	0.36	0.47	1.34
		HGR	−0.56	2.68	0.97	6.79
	Rainy	BCR	2.64	0.34	0.41	0.66
		HGR	0.4	1.93	0.9	3.84
	Annual	BCR	2.35	0.65	0.44	1.5
		HGR	−1.66	2.75	0.9	7.36
Lahore PBO	Dry	BCR	4.66	0.38	0.53	1.53
		HGR	−0.59	2.68	0.98	6.36
	Rainy	BCR	2.8	0.33	0.44	0.6
		HGR	0.45	1.94	0.92	2.67
	Annual	BCR	2.46	0.69	0.48	1.66
		HGR	−1.49	2.75	0.93	6.9

BCR: Blaney Criddle, HGR: Hargreaves