Air Pressure, Wind

Air that increases in temperature will

14%

86%1. Increase in volume

2. Decrease in volume

What happened here???The interior of the tank car was washed out

& cleaned with steam. Then all the outlet valves were shut and the tank car was sealed. All the workers went home for the evening and when they returned, this is what they found.

Air that increases in temperature will

1. Increase in volume

2. Decrease in volume

Air that decreases in temperature will1. Increase in volume

2. Decrease in volume

Pressure of a Gas =The force that a gas exerts on a certain area

Barometers

Densityof Air

Air Pressure and Altitude

Isobars and Wind

Forces influencing wind direction and speed:Pressure gradient forceCoriolisFriction (at surface)

Pressure Gradient ForceWind moves from higher pressureto lower pressure

Coriolis Effect

Potential Coriolis Victim

Effect of Friction on Surface Winds and Winds Aloft

Upper Level Winds(note: no friction)

Upper level winds

Cyclones & Anticyclones

Anemometer & Wind Vane

Local Winds

Land and Sea Breezes

Mountain & Valley Breeze

Chinooks, Santa Ana Winds, Foehns

Seasonal Shifts

Ocean Currents

What influences the movement of ocean water?

TidesDensity DifferencesWinds and Coriolis

Wind and Coriolis

Upwelling

High Oceanic Productivity

El Nino

El Nino

El Nino

Is this a year with an El Nino?

0%

0% 1. Yes2. No

Air that increases in volume will

0%

0%1. Decrease in pressure

2. Increase in pressure