Spatiotemporal Variability of Arctic Soil Moisture Detected from High-Resolution RADARSAT-2 SAR Data

Table 2

Variables generated from SAR data.

Variable	Description
Homogeneity^a	A measure of local homogeneity
Contrast^a	A measure of local variation
Correlation^a	A measure of the linear dependency of grey levels of neighbouring pixels
Mean^a	Arithmetic mean of all pixel values
SD^a	Standard deviation of pixel values
VI/VA/VL/U^b	A normalized log measure of texture
HH	intensity of HH polarized backscatter

^aHaralick et al., [75]. ^bOliver and Quegan, [76].