The surface pressures at the bases of warm and cold columns of air are equal. air pressure in the warm column of air will with increasing height than in the cold column.

In atmospheric science, surface pressure is the atmospheric pressure at a location on Earth's surface. It is directly proportional to the mass of air over that location. For numerical reasons, atmospheric models such as general circulation models (GCMs) usually predict the nondimensional logarithm of surface pressure.

The answer is decrease more slowly