Let’s say we are flying over a large, flat part of Africa. Half of the area is hotter
than the other half. The surface pressure is 1000 hPa everywhere. If we fly over
at an elevation of 500 m above the surface, in which area does the pressure gauge
(altimeter) in our plane read the lowest pressure?
(a) The cold part.
(b) The hot part.
(c) The gauge reads the same pressure everywhere.
(d) The gauge varies with the latitude and the temperature of the surface.
than the other half. The surface pressure is 1000 hPa everywhere. If we fly over
at an elevation of 500 m above the surface, in which area does the pressure gauge
(altimeter) in our plane read the lowest pressure?
(a) The cold part.
(b) The hot part.
(c) The gauge reads the same pressure everywhere.
(d) The gauge varies with the latitude and the temperature of the surface.