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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 | |
| 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 |