If the air temperature is +8 °c at an elevation of 1,350 feet and a standard (average) temperature lapse rate exists, what will be the approximate freezing level?

Approximate freezing level is at 5350 feet.

Explanation:

We know that the standard lapse rate equals per 1000 feet

and freezing occurs at a height where the temperature becomes equal to

Thus the standard equation of temperature at any height becomes

The constant 'c' can be obtained by using the boundary condition that at

h=1350 feet  temperature equals

Thus the height at which temperature becomes zero equals

c. magnitude and direction