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Its fairly easy to see from the top of a good hill just how much pollen, dust or wood smoke is in the valleys and depressions depending on the season. That layer can run to 30mtrs+ and removes a lot of detail just to the naked eye.
Getting height above that ground fog of particles achieves a lot, its about getting above or away from the airborne pollutants, not just having less atmosphere above you.
Don't forget the hPa/millibar, that changes the density of the air above you as well.
Last edited by mura_gadi; 14-09-2022 at 12:33 PM.
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