Would you expect the air pressure in a valley that's below sea level to be higher or lower than the air pressure at sea level?
Answer (3)
it would depend on how deep the water or pressure is but I persanlly be higher
The air pressure in a valley below sea level would be higher than the air pressure at sea level due to the greater weight of the air column above the valley, which increases the atmospheric pressure.
One would expect the air pressure in a valley that is below sea level to be higher than the air pressure at sea level. This is due to the increase in the weight of the air column above the valley adding to atmospheric pressure. Higher air pressure arises because there is more air above this point pressuring downward. For instance, at the base of a valley, not only does the weight of the atmospheric air contribute to the pressure, but so does any additional height of air above sea level.
Another way to understand this is if you consider the air as a fluid. In a fluid acted upon by gravity, pressure increases with depth. Thus, as one moves below sea level, the air pressure would similarly increase due to the greater amount of air being above that point.
In summary, valleys below sea level are under higher atmospheric pressure compared to at sea level because of the additional air in the overlying column. This concept is similar to how water pressure increases as you dive deeper into a body of water.
The air pressure in a valley below sea level is higher than at sea level because there is more air above it exterting pressure. This means that the weight of the air column increases as you go below sea level. The principle is similar to how pressure increases with depth in water.
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