100% Geography 5-Activity #1 Name Vertical Structure of the Atmosphere Pressure

Question

100% Geography 5-Activity #1 Name Vertical Structure of the Atmosphere Pressure is defined as the weight of the air above you. So, when you are on Earth's arth's surface, the entire weight of the atmosphere is felt. If you were to rise into E atmosphere in a hot air balloon, you would observe that the percentage of the atmosphere above you decreases, but a decreasing rate (NOT a constant rate). Here's a general rule For every 5.6 km you go up, the amount of air above your head is cut in half We can substitute the actual weight of the air for the percentage of air above your head. Meteorologists use a unit known as a millibar (mb) to measure the weight of the air. In general, the entire weight of the atmosphere weighs approximately 1000 mb. Using the above mentioned general rule, at an altitude of 5.6 km, only 50% of the air remains above your head. That means: The weight of the air is 500 mb at that elevation; 500 mb is 50% of 1000 mb. Using the above knowledge, complete the chart below. Start at the surface (bottom), and work up. 1) Height Above the Surface Pressure (mb) 28.0 km 22.4 km 16.8 km 11.2 km 5.6 km Surface While the pressure continues to decrease with height throughout the entire depth of the atmosphere, the same can't be said for how temperature decreases with height. However, in the lowest levels of the atmosphere, the temperature does decrease with height. The average decrease in temperature with increasing altitude is 6.5 degrees C for every kilometer you go up. This is referred to as the average environmental lapse rate. The next exercise explores that change in temperature.

Explanation / Answer

Explanation in given in the quiestion itself.

Surface = 100% = 1000mb

5.6km = 50% = 500mb

11.2 km = 25% = 250mb

16.8km = 12.5% = 125mb

22.4 km = 6.25% = 62.5 mb

28 km = 3.125% = 31.25 mb.

Here, elvations are given at an interval of 5.6 km.

In every 5.6 km, % of air goes down by 50%

Same applies to the pressure also.

#Please hit a like, if i helped you.

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