Global Wind Lecture Coriolis Effect apparent deflection of

Global Wind Lecture

Coriolis Effect • apparent deflection of objects (such as airplanes, wind, missiles, and ocean currents) moving in a straight path relative to the earth's surface. – strength is proportional to the speed of the earth's rotation at different latitudes. – Northern Hemisphere deflects to the right. – Southern Hemisphere deflects to the left. • http: //www. youtube. com/watch? v=i 2 mec 3 vgea. I

Intertropical Convergence Zone • from about 5° north and 5° south • trade winds converge in a low pressure zone • Solar heating in the region forces air to rise through convection which results in precipitation. – location varies throughout the year though it remains near the equator, the ITCZ over land ventures farther north or south than the ITCZ over the oceans due to the variation in land temperatures.

Local Winds

Is this a Sea Breeze?

Ah, Sea Breeze!!

Sea Breeze vs. Night Breeze

Valley Breeze

Mountain Breeze

Jet Stream • The major means of transport for weather systems. A jet stream is an area of strong winds ranging from 120 -250 mph that can be thousands of miles long, a couple of hundred miles across and a few miles deep.

Measure Wind Speed = Anemometer

Hand held Anemometer

In action!!

Have a nice day!!