Alla faccia di coloro che credono, strakkino in primis, che l'atmosfera si comporti sempre as it is imagined in the model that we call standard atmosphere. Namely, that every 1000 meters of altitude the temperature decreases, and always, of 6.5 °.
To these would be enough of a Voletta 20 minutes, like the one done by me today for work, starting from the plains of Piedmont and ending at the highest dam in Europe, to quickly change your mind.
fact at 9 this morning, thanks to the sun and wind effect Phoeni, near Caselle enjoyed a good morning with 8 degrees centigrade. Temperature rising further if you move behind the line of the foothills.
discrete temperatures were maintained at least at the sun, Until he remained in the valley also going high, always due to the dynamic compression of the wind.
But as soon as you cross the area where the air was "compressed" to dynamic effect, we lost all doubt about the origin arctic air hit us.
So at 2750 meters above sea level, even if in full sun, the thermometer was -17 ° and the condensation froze on the inner surface of the plexiglass booth.
climb the mountains that "smoke" clearly indicate the direction of the wind and what we expect soon.
To remove all doubt ...
Note the ice near the bottom of the Plexiglas frame. The heating is a "ball" for several minutes and his jet black rectangle that is in the lower right.
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