C-Band Polarimetric Coherences and Ratios for Discriminating Sea Ice Roughness

Table 4

Matrix of significance values from non-parametric Kruskal-Wallis tests for independence between ice types based on polarimetric parameters and near (N), middle (M), and far (F) range groupings. The number of data samples is: SCFYI, 𝑁=14; DFYI, 𝑁=8; PI, 𝑁=14; SCFF, 𝑁=18; DFF, 𝑁=10.

	Near range					Middle range					Far range
	SCFYI	DFYI	PI	SCFF	DFF	SCFYI	DFYI	PI	SCFF	DFF	SCFYI	DFYI	PI	SCFF	DFF
𝜌VVHH
SCFYI
DFYI	.285					.015					.094
PI	.028	.094				.509	.𝟎𝟎𝟎				.𝟎𝟎𝟎	.𝟎𝟎𝟏
SCFF	.463	.119	.𝟎𝟎𝟐			.011	.322	.𝟎𝟎𝟏			.014	.199	.𝟎𝟎𝟎
DFF	.004	.013	.028	.𝟎𝟎𝟎		.𝟎𝟎𝟓	.483	.𝟎𝟎𝟎	.000		.𝟎𝟎𝟎	.𝟎𝟎𝟒	.420	.000
𝜌HHVH
SCFYI
DFYI	.201					.201					.035
PI	.𝟎𝟎𝟔	.𝟎𝟎𝟎				.𝟎𝟎𝟓	.𝟎𝟎𝟓				.018	.221
SCFF	.429	.𝟎𝟎𝟖	.𝟎𝟎𝟎			.125	.156	.001			.046	.184	.277
DFF	.𝟎𝟎𝟐	.𝟎𝟎𝟐	.𝟎𝟎𝟎	.𝟎𝟎𝟎		.𝟎𝟎𝟏	.𝟎𝟎𝟎	.𝟎𝟎𝟎	.𝟎𝟎𝟎		.𝟎𝟎𝟏	.𝟎𝟎𝟎	.𝟎𝟎𝟎	.000
𝜌RRLL
SCFYI
DFYI	.308					.048					.030
PI	.164	.106				.082	.513				.𝟎𝟎𝟎	.357
SCFF	.𝟎𝟎𝟔	.𝟎𝟎𝟏	.039			.418	.𝟎𝟎𝟓	.𝟎𝟎𝟐			.015	.023	.𝟎𝟎𝟎
DFF	.023	.197	.𝟎𝟎𝟎	.𝟎𝟎𝟎		.069	.483	.170	.𝟎𝟎𝟑		.𝟎𝟎𝟎	.042	.117	.002
𝛾co
SCFYI
DFYI	.285					.018					.𝟎𝟎𝟏
PI	.028	.094				.𝟎𝟎𝟏	.183				.𝟎𝟎𝟎	.308
SCFF	.463	.119	.𝟎𝟎𝟐			.𝟎𝟎𝟎	.𝟎𝟎𝟎	.𝟎𝟎𝟎			.𝟎𝟎𝟎	.𝟎𝟎𝟏	.𝟎𝟎𝟎
DFF	.𝟎𝟎𝟒	.013	.028	.𝟎𝟎𝟎		.466	.017	.𝟎𝟎𝟏	.𝟎𝟎𝟎		.𝟎𝟎𝟎	.𝟎𝟎𝟑	.𝟎𝟎𝟓	.000
𝛾cross
SCFYI
DFYI	.𝟎𝟎𝟓					.149					.041
PI	.437	.𝟎𝟎𝟏				.214	.357				.164	.041
SCFF	.118	.𝟎𝟎𝟎	.179			.𝟎𝟎𝟔	.𝟎𝟎𝟓	.𝟎𝟎𝟏			.𝟎𝟎𝟎	.013	.𝟎𝟎𝟏
DFF	.𝟎𝟎𝟎	.010	.𝟎𝟎𝟎	.𝟎𝟎𝟎		.𝟎𝟎𝟒	.204	.𝟎𝟎𝟔	.𝟎𝟎𝟎		.420	.042	.354	.𝟎𝟎𝟎^#

#Bold numbers indicate important significant values.