CHAPTER 4: AIR PRESSURE & WIND

Barometer

Pressure Gradient

Isobars

Pressure Gradient Force

Geostrophic Wind

Jet Stream

Cyclone

Convergence

Counterclockwise Rotation

Anticyclone

Divergence

Clockwise Rotation

Subsiding Air

Monsoon

Mid-latitude Cyclone

Westerlies

Prevailing Winds

➢ Winds at different scales:

➢ Difference between high & low pressure:

➢ The average atmospheric pressure at sea level:

➢ How air pressure is measured & how it can be changed:

➢ Difference between upper level & surface winds - and the forces that act on each:

➢ Geostrophic winds and jet streams:

➢ Pressure ridges & troughs - and what they mean for storm systems:

➢ Cyclones vs. Anticyclones:

➢ Circulation on a Non-Rotating Earth vs. Rotating Earth

➢ Large scale planetary circulation cells:

Mid-latitude prevailing winds:

➢ Types of local winds:

➢ How wind is measured:

➢ El Niño vs. La Niña events:

➢ How circulation affects precipitation: