Geography Ch.4
_______ currents are circular movements of rising and descending air.
Convectional
Which of the following phenomena occur in the tropical South Pacific Ocean during ENSO?
- Upwelling of colder ocean waters slows down near the South American coast. - Trade winds of the South Pacific weaken and may even reverse direction. - A low-pressure system forms over the eastern South Pacific.
Why are anticyclones not generally associated with clouds and rain?
Air in anticyclones undergoes warming as the air descends.
Why are cyclones generally associated with clouds and rain?
Air in cyclones undergoes cooling as it rises.
During the day, air above sea is ______ than it is above land.
Cooler
Ocean frontal systems that spin off from currents such as the Gulf Stream, akin to atmospheric storms, are known as __________.
Eddies
One of the world's most powerful currents, located off the east coast of the United States, is the __________.
Gulf Stream
As discussed in the video, air always moves from _____ atmospheric pressure regions to _____ atmospheric pressure regions.
High; low
Land to sea breezes occur during_______.
Nighttime
The Gulf Stream transports warm water into the __________.
North Atlantic
Sea to land breeze blows in an _______ direction
Onshore
El Niño's global impac
PHOTO ON PHONE MAY 5th AT 10:59 pm
Understanding the sequence of processes creating local winds PHOTO ON PHONE
TAKEN MAY 5th @ 10:34 pm
As shown in the video, what causes the item to deflate?
The higher pressure inside the item forces the air out into the lower pressure of the room.
What common household item is used in this video to demonstrate differences in atmospheric pressure?
a balloon
What is an anticylone?
a center of high atmospheric pressure
What is a cyclone?
a center of low atmospheric pressure
What older household item is used in this video to demonstrate the Coriolis effect?
a turntable (record player)
When a meander from the Gulf Stream pinches off into the warm water south of the current, the eddy is called a __________.
cold-core eddy or ring
Which way does air move in an anticyclone in the Northern Hemisphere?
down, and in a clockwise direction
Which way does air move in an anticyclone in the Southern Hemisphere?
down, and in a counterclockwise direction
Which way does air converge on a cyclone in the Northern Hemisphere?
in a counterclockwise direction
How does air move near the top of a cyclone?
in the same direction as air in the upper atmosphere
Fluctuations in the flow of the Gulf Stream current result in curving loops of water known as __________.
meanders
Even though it's on the same spinning planet, the Coriolis effect influences moving objects and diverts them to the _____ of their intended direction in the Northern Hemisphere and to the _____ of their intended direction in the Southern Hemisphere.
right; left
The Coriolis effect is _____ at the equator and is _____ at the poles.
zero; strongest
