Low-Cost GPS Receivers for the Monitoring of Sunflower Cover Dynamics

Table 2

values and correlation coefficients () between VWC and optical thickness, for the elevation angle ranges 65–85°; 45–65°; and 25–45°.

		65–85°	45–65°	25–45°
With all VWC data		0.1	0.09	0.09
		0.85	0.72	0.75
Without outlier		0.15	0.155	0.16
		0.93	0.92	0.96