"Average altitude" refers to the height at which something typically exists or occurs in relation to sea level.
Full definition
The average altitude is 1150 meters.
They compared this with
the average altitude of the snowline and the latitude of each range.
In a 2014 study, the percentage of adults with «serious thoughts of suicide» ranged from 3.3 percent in Connecticut (
average altitude 490 feet) to 4.9 percent in Utah (average altitude 6,100 feet).
Tibet is the highest region in the world, with
an average altitude of 4000 meters.
Dawn is now orbiting Ceres at
an average altitude of only 240 miles (385 kilometers), which is closer than the International Space Station is to Earth.
A total of about 36 hours of data have been accumulated with the LXeTPC at
an average altitude of 39 km.
A brisk walk into the surrounding hills near Goulongzhu's home would quickly leave me breathless; Zhongchacun is 7,614 feet above sea level, and in an area where 14,000 feet above sea level is
the average altitude, the village's elevation is relatively mild.
I'm no atmospheric scientist and haven't really considered the stratospheric cooling issue but, if an increase in the amount of atmospheric CO2 raised
the average altitude from which the stratosphere receives radiation in the CO2 bands, wouldn't it receive less radiation in those bands?
Therefore,
the average altitude from which heat can radiate to space increases.