Exam 18: Air Pressure and Wind

Why are coastal and mountainous regions often much more windy than other locations at similar latitudes? Also, from this and earlier chapters on meteorology, are there other weather characteristics that are perhaps unique or different for these areas?

In the Northern Hemisphere, the winds associated with a low pressure system cyclone. blow_____ .

Asia has an intense monsoon, but North America also experiences a low- intensity monsoon. What causes monsoons?

Horizontal movement of air is called _____ .

Which of the following devices measures both wind direction and speed?

If the barometer indicated 1020 millibars, air pressure would be considered _____ .

Where is the Coriolis force greatest?

Cyclones are usually associated with_____ weather.

Under normal conditions the predominant winds in the equator region go from and there is _____ water off the coast of South America.

If stormy weather were approaching, the pressure tendency would probably be_____ .

The force that generates wind is _____ .

Low air pressure systems are usually associated with _____ .

Closely spaced isobars indicate _____ .

In a mercurial barometer increased air pressure will make the mercury level_____ .

Inches of mercury is something that would only be used in America. Elsewhere in the world, the mercury height would be in millimeters, or about 760mm 76cm.. Mercury has a density of about 13.56 g/cm³, or in other words, each cm of mercury weighs about 13,300 dynes. So 760mm of mercury weighs 1,013,000 dynes. 1 mb is 1 dyne/cm², so what is the air pressure in mb?

The subpolar low polar front. is _____ .

Where was the El Niño phenomena first recognized?

Why is the Santa Ana wind a danger signal in southern California?

Anticyclones characteristically have winds blowing _____ from their centers.

The force that generates wind is known as the _____ force.