Earth Science: AIR PRESSURE AND WIND - CHAPTER 13 Flashcards
Standard sea level pressure in millibars is
Standard sea level pressure in inches of mercury is
The mercurial barometer was invented by
Which of these instruments is NOT used to measure air pressure?
An altimeter is an adaptation of the
The force that generates wind is
pressure gradient force
Which of these factors influence the magnitude of the Coriolis force?
d)both wind speed and latitude
both wind speed and latitude
Lines on a weather map connecting places of equal air pressure are called
Closely spaced isobars often indicate
A steep pressure gradient
produces strong winds
Widely spaced isobars often indicte
The Coriolis effect influences
In the Northern Hemisphere, the winds associated with a low pressure system (cyclone) blow
COUNTERCLOCKWISE and TOWARD the center
In the Northern Hemisphere, winds associated with a high pressure system blow
CLOCKWISE and OUTWARD from the center
If Earth were not rotating
air would move directly from high to low pressure
Upper air winds
are generally faster than surface winds
High air pressure systems are usually associated with
d)all of these
All of these
Low air pressure systems are usually associated with
In the Southern Hemisphere, the winds associated with a low pressure system blos
CLOCKWISE and TOWARD the center
If "fair" weather were approaching, the pressure tendency would probably be
If stormy weather were approaching, the pressure tendency would probably be
Most of the United States is situated in which zone of prevailing winds?
Another name for the area of equatorial lows is the
This pressure zone is associated with abundant precipitation and warm temperatures.
The subpolar low (polar front) is
A zone where the polar easterlies and the westerlies converge
When are upper air winds faster?
A Santa Ana (or Chinook or Foehn) wind is a
very dry, warm wind flowing down a mountain slope
A sea breeze usually originates during the
day and flows toward the land
A land breeze usually originates during the
evening and flows toward the water
Fast moving currents of air found near the top of the troposphere are called
What is the technical name for a high pressure center?
Low pressure systems are usually associated with clear weather
Cyclones are usually associated with stormy weather
If the barometer indicated 1020 millibars, air pressure would be considered high
The Coriolis effect is strongest at the equator and diminishes in strength poleward.
The pressure gradient force is the driving force behind wind.
A southwest wind blows toward the northeast.
An isobar is a line connecting places of equal humidity.
Anticyclones characteristically have winds blowing out from their centers.
The ultimate cause of a sea breeze is the unequal heating of land and water.
Horizontal movement of air is called wind.
A mountain breeze is best developed in the hottest part of the day.
The region where the trade winds meet is also called the DOLDRUMS
Most of the people living in the United States are under the influence of the wind belt known as the westerlies.
Closely spaced isobars indicate high wind speeds.
In the Northern Hemisphere, winds blow clockwise and outward from the center of anticyclones.