Multitemporal Soil Moisture Retrieval over Bare Agricultural Areas by Means of Alpha Model with Multisensor SAR Data

Table 4

Quantitative evaluation of the estimated soil moisture using Alpha model.

Date	Statistical indicators	JiuLong	WanNian
13 Oct. 2015	RMSE (cm^3/cm^3)	0.053	0.057
	R	0.68	0.58
	Sampling number	27	26
6 Nov. 2015	RMSE (cm^3/cm^3)	0.072	0.082
	R	0.51	0.72
	Sampling number	21	23
24 Dec. 2015	RMSE (cm^3/cm^3)	0.052	0.069
	R	0.68	0.68
	Sampling number	30	27
17 Jan. 2016	RMSE (cm^3/cm^3)	0.068	0.075
	R	0.73	0.66
	Sampling number	30	30
5 Mar. 2016	RMSE (cm^3/cm^3)	0.059	0.059
	R	0.92	0.75
	Sampling number	30	30