Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
20 Cards in this Set
- Front
- Back
Which 2 factors influence the Earth's temperature?
|
The length of day & the angle of the Sun's rays.
|
|
What are the major factors that result in the wide distribution of pressure over the earth's surface?
|
The unequal heating of Earth's surface due to it's tilt, rotation, & differential insolation
|
|
What effect does Coriolis force have on thermal circulation in the Northern Hemisphere?
|
The rotation of Earth causes a force that affects thermal circulation, causing it to be deflected to the right of the direction of movement in the northern hemisphere.
|
|
According to the 3-cell theory, how many circulation belts are there?
|
SiX
|
|
According to the 3-cell theory, what type of pressure system would you normally find at 30 degrees north latitude?
|
subsidence or high pressure is usually found at 30 degrees north latitude
|
|
What is the predominant wind system in the tropics?
|
The trade winds
|
|
Name 2 types of pressure gradient.
|
Horizontal & Vertical
|
|
What is the difference between centrifugal force & centripetal force?
|
CentriPETal Force is directed toward the center of rotation.
CentriFUGal Force is directed outward from the center of rotation. |
|
What is the difference between gradient wind & geostrophic wind?
|
Gradient Wind flow is parallel to the curved portion of the analysis. Geostrophic Wind is the windflow that is parallel to that portion of the analysis showing straight flow.
|
|
What is the relationship between centrifugal force and pressure gradient force around anticyclones?
|
the centrifugal force acts with the pressure gradient force
|
|
What is the term that defines the formation of an anticyclone or the intensification of an existing anticyclone?
|
Anticyclogenesis
|
|
What is the direction of the windflow around a cyclone?
|
Counterclockwise
|
|
How do temperatures change within a Cold-Core Low?
|
Temperatures decrease toward the center.
|
|
Low pressure due to intense heating over the southwestern US is an example of which type of low-pressure system?
|
Warm-Core Low
|
|
What is the cause of monsoon winds?
|
The unequal heating & cooling of land & water surfaces.
|
|
What causes land & sea breezes?
|
The diurnal (daily) contrast in the heating of local water & land areas.
|
|
Describe Bernoulli's theorem
|
Pressures are least where velocities are greatest, & pressures are greatest where velocities are least.
|
|
When does a valley breeze usually reach its maximum?
|
in the early afternoon
|
|
What causes eddies?
|
When the wind flows over or adjacent to rough terrain, buildings, mountains or other obstructions.
|
|
What causes Foehn winds?
|
Adiabatic heating of descending air on the lee sides of mountains.
|