| 4.4.1.3. |
The air temperature, measured about one meter above the ground, shall be between -15 °C and -2°C; the snow temperature, measured at a depth of about one centimeter, shall be between -15 °C and -4 °C. |
a6c0 |
| 4.4.1.3. | The air temperature, measured about one meter above the ground, shall be between -2 °C and -15 °C; the snow temperature, measured at a depth of about one centimeter, shall be between -4 °C and -15 °C. | a0c0 |