Question

Surface temperature of 25 ∘C, which is 15 ∘C higher than the middle-latitude city mentioned in Part A. Vertical soundings reveal an environmental lapse rate of 6.5 ∘C per kilometer and indicate that the tropopause is encountered at 16 kilometers. What is the air temperature at the tropopause?

Answer 1

Answer:

at an altitude of 16 kilometers the temperature of tropopause is -79° C.

Explanation:

Given that:

The surface temperature = 25° C

Vertical constant environmental Lapse Rate ( Change in temperature with height) = 6.5° C/km

Altitude of tropopause = 16 kilometers

It is pertinent to understand that as we move higher up to the tropopause ; temperature decreases.

SO;  we need to  subtract the change in temperature from surface temperature

Thus; Air temperature at tropopause = Surface temperature - (Change in temperature till the altitude of tropopasue)

Air temperature at tropopause =  Surface temperatue - (Lapse Rate × Altitude)

Air temperature at tropopause =  25° C - (6.5 ° C/km  ×  16 km)

Air temperature at tropopause =  25° C -  104° C)

Air temperature at tropopause = -79° C

Thus; at an altitude of 16 kilometers the temperature of tropopause is -79° C.