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Table 4

Pearson’s correlation coefficients calculated between thermophysical variables and TB for each frequency/polarization channel. DOI: https://doi.org/10.1525/elementa.412.t4

Frequency/polarizationCorrelation coefficientsa

WetnessbPercent cloud coverHour of samplingAir temperatureSnow depthSnow temperature

 
19 H 0.1859 –0.1222 (0.89)b 0.7411 (0.35)   0.5173 (0.19)   0.2238 (0.59) 0.0815 (0.85) 
19 V 0.2212 –0.0969 (0.93)   0.8853 (0.00)* 0.3575 (0.38)   0.3256 (0.43) 0.0083 (0.98) 
37 H 0.6271 –0.0025 (0.38)   0.6204 (0.10)   0.6057 (0.11)   0.239 (0.57) 0.0364 (0.93) 
37 V 0.9066 0.0707 (0.65)   0.5017 (0.21)   0.3921 (0.34)   0.1449 (0.73) 0.0029 (0.99) 
89 H 0.6837 0.231 (0.24)   0.5196 (0.19)   0.7502 (0.03)* –0.2301 (0.58) 0.3456 (0.40) 
89 V 0.7644 0.1891 (0.40)   0.5163 (0.19)   0.6575 (0.08)   –0.2852 (0.49) 0.4203 (0.30) 
Frequency/polarizationCorrelation coefficientsa

WetnessbPercent cloud coverHour of samplingAir temperatureSnow depthSnow temperature

 
19 H 0.1859 –0.1222 (0.89)b 0.7411 (0.35)   0.5173 (0.19)   0.2238 (0.59) 0.0815 (0.85) 
19 V 0.2212 –0.0969 (0.93)   0.8853 (0.00)* 0.3575 (0.38)   0.3256 (0.43) 0.0083 (0.98) 
37 H 0.6271 –0.0025 (0.38)   0.6204 (0.10)   0.6057 (0.11)   0.239 (0.57) 0.0364 (0.93) 
37 V 0.9066 0.0707 (0.65)   0.5017 (0.21)   0.3921 (0.34)   0.1449 (0.73) 0.0029 (0.99) 
89 H 0.6837 0.231 (0.24)   0.5196 (0.19)   0.7502 (0.03)* –0.2301 (0.58) 0.3456 (0.40) 
89 V 0.7644 0.1891 (0.40)   0.5163 (0.19)   0.6575 (0.08)   –0.2852 (0.49) 0.4203 (0.30) 

a P values shown in parentheses; asterisks indicate statistically significant (95% confidence interval) coefficients.

b Calculated using point-biserial correlation.

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