weather & performance
Asked by: chackaviation 2171 views Aircraft Systems, General Aviation, Instrument Rating, Private Pilot, Weather
Does temperature inversions have an affect on altimeter readings?
1.) We know that the altimeter reads the altitude based on the pressure. Less pressure and the altimeter will read a higher altitude. More pressure and the altimeter will read a lower altitude.
2.) We know that temperature has an affect on density and pressure. Higher temperatures means that the air will rise and spread out (less dense) and we know that cold air will sink and shrink(more dense).
3.) We also know that there is four types of temperature inversions, mostly dealing with radiation temperature inversions. Temperature inversions means that as altitude increases, temperature increases. Over the cold long nights the temperature from the ground tends to get colder but the air above the ground doesn't necessarily get cold due to the fact that air is a poor conductor. Causing to have the air above the ground to be less cold than the air close to the ground.
If flying at or above a temperature inversion how would you know which altimeter setting to adjust the altimeter?
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