e; Table 1. Incidence angles (degrees). 
  
  
  
  
  
  
Nadir Mode Narrow Mode 
October 30, 1990 March 20,199] October 30,1990 March 20, 1991 
Target C-HHX-HH C-VVX-VV C-HHC-HV C-VHC-VV C-HHX-HH C-VVX-VV C-HHC-HV C-VHC-VV 
Bl 2945 141.41 35:71 33773. 5888 -::59.75-115983 : 5929 
B2 30.06... 41.77. 36,15 34,19 ‚539.054. 60.03.... 60.00... 59,55 
B3 27.84 140.31 34.34 à 3218 "- 8848 5929 3028 5875 
B4 29.2] 41.8%: 438,93 :133.734—,,58.88 59.78 5996 59.29 
B5 28.54, 40.03. 3480 32.54 08.93 1 3982 , 59,71 59.42 
GI 34.0755546,01 "5540.45 38.57% 360.87 ^ 6L55 61.48 61.27 
G2,3,4 34.54 . 4$78. ,0,40:05 — .38.05....,60.5641,.61.26:.,..61.33.... 6119 
G5 34.54 * 4878 . 40.536 3837: "6075 | 6:52 6l 56 61.19 
TFA 32.30555:48.02,50 38.60. 136,66 4160.12 11:160.96. 161.02 160.43 
Table 2. Snow distribution statistics. 
  
  
  
  
  
Target Snow Snow-Water 
Depth (cm) Equivalent (cm) 
ngles MIN. MAX. AVG. MIN. MAX. AVG. 
Bl 47 138 67.6 12 31 20.4 
to B2 62 150 97.8 12 34 23.0 
ided B3 45 115 57.2 10 26 12.9 
torial B4 44 136 90.5 11 38 24.5 
"the B5 118 122 120.0 22 25 23.5 
; Gl 60 90 74.8 1 21 14.3 
| to G2 44 104 722 7 22 14.4 
rs to G3 68 102 87.3 17 2S 22.1 
ction G4 31 93 61.8 7 31 17.4 
gram G5 56 108 90.6 11 28 20.4 
pixel TFA 81 123 99.9 17 32 26.9 
r one TFRI 40 95 51.6 9 24 13.2 
] the TFR2 57 103 85.8 14 30 21.2 
alues 
HH The SWE (as the dependent variable) was equations: 
data regressed over the raw and filtered DN-s SWE=17.6+0.17DNyqw (r=0.37; SE=2.73) and 
separately (Figure 2). The analysis provided the SWE=16.0+0.22DN{filterea(r=0.22; SE=2.86) 
following simple linear regression 
39 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996