eh 80 
5 
70 
Zz 
{ Q it. 
2 60! (see 
= wow DEP EW 
50) ne 2 iN. 
oat j =H Zi. 
w | a= 0 \ : 
o <0 - Saat 
Z 30} | 
5 | 
== 20h } 
ab ee 
ee = am 
ad A is 
Qo | ll Hey 1 otc ae es ee 
re) 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 
EGREE DAYS OF FROST (°F) 
FIGURE 21. COMPUTED ICE-GROWTH CURVES FOR SELECTED SNOW COVERS. 
COMPUTATION BASED ON DATA FROM SITE A, 29 SEPTEMBER I[953. 
80 ¢ 
ICE THICKNESS (I;) IN INCHES 
0) aa 1000 1560 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 950010000 
DEGREE DAYS OF FROST (BASE 28.8°F) 
FIGURE 22. COMPUTED ICE-GROWTH CURVES FOR SELECTED SNOW COVERS. 
COMPUTATION BASED ON DATA FROM SITE A , i2 OCTOBER 1953. 
37 
