## 3 Results
### Class Separability and Feature Selection
** & **FEATURES** & **OL** & **BS** & **BM** & **BW** & **HT** & **ST** & **WI** & **WT** & **AV** \\ \hline
1 & ALOS-2 & quad & K-Matrix & 200 & 1196 & 120 & 138 & 138 & 138 & 138 & 135 & 200 & 137 \\ \hline
2 & Landsat TM & n/a & (Band 1-5 \& 7) & 200 & 1191 & 184 & 200 & 194 & 1.83 & 1.83 & 200 & 192 \\ \hline
3 & R-2 & quad & K-Matrix & 200 & 1197 & 157 & 186 & 161 & 167 & 169 & 199 & 180 \\ \hline
4 & ALOS-2 & HHVV & K-Matrix & 199 & 1.51 & **1.31** & 1.82 & **1.69** & 1.60 & **1.64** & **1.64** & **1.65** \\ \hline
5 & TSX & HHVV & K-Matrix & 197 & 186 & 1.33 & 1.51 & 1.39 & 1.52 & 1.46 & 1.87 & **1.61** \\ \hline
6 & ALOS & HHHV & K-Matrix & 199 & 1.32 & **1.31** & 1.82 & **1.43** & 1.50 & 1.40 & 1.60 & **1.53** \\ \hline
7 & R-2 & HHVV & K-Matrix & 197 & 168 & **1.22** & 1.58 & **1.24** & 1.32 & 1.31 & 1.53 & **1.53** \\ \hline
8 & ALOS-2 & quad & HHHV/VV & 199 & **1.33** & **1.13** & 1.81 & 1.44 & 1.45 & 1.66 & 1.43 & **1.53** \\ \hline
9 & TSX & HHVV & HH/VV & 196 & 195 & 120 & 125 & 126 & 1.45 & 1.20 & 1.76 & 1.48 \\ \hline
10 & ALOS-2 & quad & DBL3/VOL3/ODD3 & 198 & 1.21 & 1.08 & 1.81 & 1.40 & 1.42 & 1.54 & 1.38 & **1.47** \\ \hline
11 & ALOS-2 & VVVH & K-Matrix & 192 & 123 & 108 & 182 & 1.40 & 1.34 & 1.43 & 1.44 & **1.46** \\ \hline
12 & TSX & HHHV & K-Matrix & 196 & 1.55 & **1.07** & 1.39 & 1.27 & 1.41 & 1.16 & 1.83 & **1.45** \\ \hline
13 & R-2 & quad & DBL3/VOL3/ODD3 & 194 & 1.68 & 109 & 1.44 & **1.16** & 1.45 & 1.17 & 1.67 & **1.45** \\ \hline
14 & ALOS-2 & HHHV & K-Matrix & 189 & 1.17 & **1.08** & 1.84 & 1.49 & 1.37 & 1.29 & 1.40 & **1.44** \\ \hline
15 & R-2 & quad & HHHV/VV & 197 & 1.27 & 100 & 1.35 & 1.20 & 1.37 & 1.15 & 1.49 & **1.41** \\ \hline
16 & TSX & HHHV & HH/HV & HH/HV & 195 & 1.52 & **1.00** & 1.29 & 1.23 & 1.38 & 1.13 & 1.76 & **1.41** \\ \hline
17 & ALOS & HHHV & HH/HV & 185 & 1.44 & 108 & 1.73 & 1.23 & 1.40 & 1.18 & 1.48 & 1.39 \\ \hline
18 & ALOS-2 & VVVH & VV/VH & 196 & 1.40 & 1.48 & 1.75 & 1.27 & 1.28 & 1.47 & 1.29 & 1.39 \\ \hline
19 & R-2 & HHHV & K-Matrix & 197 & 1.65 & 1.08 & 1.30 & 1.15 & 1.33 & 1.48 & 1.46 & **1.35** \\ \hline
20 & ALOS-2 & HHVV & DBL2/ODD2 & 193 & 105 & 109 & 1.69 & 1.29 & 1.25 & 1.23 & 1.29 & **1.33** \\ \hline
21 & R-2 & HHVV & DBL2/ODD2 & 193 & 1.59 & 1.06 & 1.28 & 1.09 & 1.07 & 1.09 & **1.71** & **1.33** \\ \hline
22 & TSX & HHVV & DBL2/ODD2 & 194 & 174 & 108 & 112 & 1.02 & 1.21 & 1.18 & 1.63 & **1.32** \\ \hline
23 & ALOS-2 & HHHV & HH/HV & 186 & 1.45 & 1.08 & 1.76 & 1.30 & 1.26 & 1.28 & 1.17 & **1.32** \\ \hline
24 & ALOS-2 & HHVV & VO2/GDD2 & 187 & 109 & 109 & 109 & 1.67 & 1.31 & 1.25 & 1.16 & **1.23** & **1.30** \\ \hline
25 & R-2 & HHHV & HH/HV & 186 & 1.64 & 1.44 & 1.21 & 1.11 & 1.28 & **1.01** & 1.27 & **1.29** \\ \hline
26 & TSX & HHVV & VOL2/GDD2 & 193 & 174 & 188 & 109 & 103 & 1.13 & 1.44 & 1.75 & **1.28** \\ \hline
27 & R-2 & HHVV & HH/VV & 196 & 1.56 & 1.04 & 1.20 & 1.05 & 1.07 & 1.08 & 1.39 & **1.28** \\ \hline
28 & ALOS-2 & HHVV & HH/VV & 196 & 109 & 109 & 1.32 & 1.15 & 1.17 & 1.40 & **1.47** & **1.27** \\ \hline
29 & R-2 & VVVH & K-Matrix & 191 & 1.56 & 1.08 & 1.01 & 1.05 & 1.25 & 1.04 & 1.44 & **1.26** \\ \hline
30 & ALOS-2 & quad & ENT/ALPT/ANII & 200 & 193 & 1.89 & 1.40 & 1.20 & 1.29 & 1.13 & **1.16** & **1.25** \\ \hline
31 & R-2 & VVVH & VV/VH & 190 & 1.54 & 1.84 & 1.04 & 1.01 & 1.26 & 1.01 & 1.32 & **1.23** \\ \hline
32 & R-2 & HHVV & VO2/GDD2 & 193 & 1.57 & 1.08 & 1.09 & 1.02 & **1.06** & 1.08 & 1.48 & **1.22** \\ \hline
33 & ALOS-2 & HWHV & ENT/ALPC & 199 & 1.40 & 1.27 & 1.04 & 1.09 & 1.05 & 1.04 & **1.14** & **1.14** \\ \hline
34 & TSX & HHHV & ENT/ALPC & 185 & 1.04 & 1.03 & 1.02 & 1.08 & 1.08 & 1.04 & **1.16** & **1.08** \\ \hline
35 & ALOS-2 & VVVH & ENT/ALPC & 192 & 1.08 & 1.04 & 1.47 & 1.04 & 1.08 & 1.04 & **1.09** & **1.08** \\ \hline
36 & R-2 & quad & ENT/ALPT/ANI & 1.33 & 1.04 & 1.02 & 1.08 & 1.04 & 1.03 & 1.81 & **1.07** \\ \hline
37 & R-2 & HHVV & ENT/ALPT & 1.36 & 1.04 & 1.03 & 1.02 & 1.04 & 1.06 & 1.04 & 1.57 & **1.04** \\ \hline
38 & TAS & HHVV & ENT/ALPC & 1.00 & 1.05 & 1.01 & 1.01 & 1.01 & 1.01 & 1.01 & 1.04 & 1.57 & **1.0 the loss of polarization during the scattering process) and K4 (diattenuation element showing the difference between HH and VV intensities) are good descriptors for the examined tundra land cover classes.