Flashcards in Test #3 Deck (22):
At upper levels in the atmosphere, as a parcel of air moves in response to a pressure gradient, it is turned progressively to the right in the northern hemisphere until the pressure gradient and Coriolis forces balance to produce the:
The episodic cessation of the typical upwelling of cold deep water off the coast of Peru (warmer water in the eastern Pacific) and subsequent changes in weather patterns is called the ___________
Lines of equal atmospheric pressure drawn on a weather map.
Cloudy and rainy weather is often associated with the inward and upward convergence of air within ___________
In the Hadley cell convection loop, air rises at the ITCZ and descends in the:
Subtropical high-pressure cells
Which areas of the United States experience tornadoes most frequently
Midwest (oklahoma, Kansas)
Sudden rise of water level caused by a hurricane
Heavy rains along narrow belt are typically found along _________ fronts associated with _________.
Causes air to warm, producing clear conditions
Convergence and uplift typically cause condensation and precipitation
Physical state of the atmosphere at one location and at one time
Pressure exerted by the atmosphere because of the force of gravity acting on the overlying column of air
Atmospheric pressure ___________ with altitude.
An effect of the Earth's rotation that acts like a force to deflect a moving object on the Earth's surface
Coriolis Effect (CE)
Wind at high levels (upper levels) above the Earth's surface moving parallel to the isobars, at a right angle to the pressure gradient
A low-latitude atmospheric circulation cell with rising air over the equatorial trough and sinking air over the subtropical high-pressure belts.
Response to differences in pressure
Rising air is associated with
Descending air is associated with
Patterns of atmospheric circulation that lead to distinctive weather events, such as cyclones or thunderstorms
An extensive body of air in which temperature and moisture characteristics are fairly uniform over a large area