Atmospheric pressure and wind Flashcards
The force exerted by gas molecules in the atmosphere is called atmospheric…?
pressure
If you had a balloon filled with air, according to the ideal gas law, what would cause the air presssure in the balloon to decrease?
Cooling the balloon
If air temp near the surface increases, what will most likely happen?
Density will decrease, and pressure will increase
What would a strong, permanent pressure system over the arctic most likely be called?
Thermal high
What is true about pressure differences on the ground?
High or low areas are relative to nearby values
Which location on the map would have the greatest wind speeds?
C- in the oceans
Which force does not work on upper atmosphere winds?
Friction
What atmospheric circulation is associated with clear conditions?
Cyclones
Which direction do winds travel around a surface high pressure system in the southern hemisphere?
Counterclockwise and outward
What is not true about the Hadley cells circulation pattern?
It is associated with clear conditions at the ITCZ
what is the area of descending air typically found nearby the worlds deserts?
Subtropical high
What are the reliable “winds of commerce” that blow eastward in the tropics?
Trade winds
what are the anti trade winds ?
Upper atmosphere winds over the subtropics
What is not true about El Niño?
it only affects areas near South America
What is the cold water phase of ENSO?
La Niña
