Global Winds and Coriolis Effect

Why are there global winds?

• because the cold air sinkes from the poles to the equator
• because the earth is rotating from east to west
• because the sun heats the air at the equator more than anywhere else on earth

Which way to the global winds blow in each hemisphere?

• east to west in Northern Hemisphere and west to east in the Southern Hemisphere
• west to east in Northern Hemisphere and east to west in Southern Hemisphere
• North to south in the Northern Hemisphere and south to north in Southern Hemisphere
• south to north in the Northern Hemisphere and north to south in the Southern Hemisphere

What is the Coriolis Effect and how does it effect global winds?

• Curving of winds due to rotation of earth curves wind counterclockwise in Northern Hemisphere and clockwise in the Southern Hemisphere
• Movement of ocean currents caused by earth rotation' counterclockwise in Northern Hemisphere and clockwise in Southern Hemisphere
• curve of global winds caused by global rotation clockwise in Northern Hemisphere and counterclockwise in Southern Hemisphere

How does the Coriolis Effect influence hurricanes and cyclones

• determines how powerful they will be
• determines where they will go
• determines where they form
• determines the direction of the wind rotation

Where do hurricanes form?

• In the pacific off South America
• In the Atlantic off South America
• In the Atlantic off Africa
• In the Gulf of Mexico

The two most important things to hurricanes are

• high pressure and cool water
• low pressure and cool water
• low pressure and warm water
• high pressure and warm water

In the Northern Hemisphere, hurricane winds blow

• harder than in the Southern Hemisphere
• counterclockwise
• clockwise
• less than in the Southern Hemisphere

Why do hurricanes lose so much of their power when they hit land?

• they run into high pressure which kills hurricanes
• land is cooler than water therefore the hurricane loses the energy it needs from warm temperatures
• the land breezes shear the hurricane therefore making it harder for it to stay together
• the hurricane no longer receives heat and moisture from the warm ocean it uses for fuel

Why do hurricanes benefit from strong upper level winds?

• The upper level winds are warm and moist and provide most fuel for the storm
• the upper level winds help to move the rising air away from the hurricane helping the winds to move haster
• the upper level winds help to drive the hurricane winds down faster to increase circulation of the winds
• the upper level winds offset wind shear so it does not weaken the storm