Table 4.

RMSE of the interpolated surfaces.

Interpolated Surface	SM (m3·m−3) at 10 cm				SM (m3·m−3) at 30 cm				WP (kPa) at 30 cm
	# Nodes	Max SM	Min SM	RMSE	# Nodes	Max SM	Min SM	RMSE	# Nodes	Max WP	Min WP	RMSE
Winter 2010–2016	38	0.570	0.180	0.061	38	0.320	0.200	0.030	37	−10	−17	2.12
Spring 2010–2016	55	0.410	0.120	0.062	57	0.300	0.130	0.048	51	−8	−31	4.94
Summer 2010–2016	71	0.330	0.070	0.061	72	0.280	0.050	0.052	59	−22	−99	17.46
Fall 2010–2016	72	0.530	0.040	0.063	72	0.290	0.060	0.051	57	−13	−59	6.01
Fall 2010	24	0.190	0.110	0.059	23	0.190	0.030	0.058	24	−19	−418	41.91
Fall 2016	72	0.500	0.050	0.026	72	0.390	0.040	0.057	69	−25	−207	17.88
8/11/2016	74	0.290	0.006	0.031	74	0.140	0.030	0.024	74	−38	−472	26.53