A station at an altitude of 900 m (about 3,000 feet)above sea level measures an air pressure of 930 mb.Under normal conditions,which of the values below do you think would be the most realistic sea level pressure for this station?

Question

Quizplus · Accepted Answer

To find the sea level pressure, we need to use the formula for the barometric equation:

P = P0 * e^(-h/Scale Height)

where P is the sea level pressure, P0 is the station pressure (930 mb), h is the altitude of the station (900 m), and Scale Height is a constant that depends on the temperature and atmospheric conditions.

Assuming standard atmospheric conditions, Scale Height is about 8 km. Substituting the values:

P = 930 * e^(-900/8000) = 1019 mb

Therefore, the most realistic sea level pressure for this station is about 1,020 mb (rounded to the nearest 10 mb).

Choices A, B, and D are not realistic because they are either too low or too high compared to the sea level pressure calculated above.

A Station at an Altitude of 900 M (About 3,000