Table 5 Calculated maxima of mean glide rates per day (millimetres per day) for a 20-, 50- and 150-year return period; x = −ln(ln(T/T − 1)), T = return period. Equations are based on values of Table 2
From: Snow gliding on a south-facing slope covered with larch trees
Equation | 20-year return period | 50-year return period | 150-year return period | |
|---|---|---|---|---|
Open slope (1) | y = 1.875 + 6.001x | 19.70 | 25.28 | 31.92 |
Open forest (2) | y = 0.441 + 0.414x | 1.67 | 2.06 | 2.51 |
Dense forest (3) | y = 0.098 + 0.144x | 0.53 | 0.66 | 0.82 |
Small clearing (4) | y = 1.094 + 2.713x | 9.15 | 11.67 | 14.68 |
Boundary of large clearing (5) | y = 1.291 + 3.132x | 10.59 | 13.51 | 16.97 |
Centre of large clearing (6) | y = 0.880 + 2.340x | 7.83 | 10.01 | 12.60 |