Anticyclone

A high-pressure, anti cyclone maximum or is an area in which the air pressure at sea level is high relative to the surroundings. This is in contrast to a low-pressure area, which in fact relatively with a low barometer is measured. The symbol for a high pressure is the letter  H.  They are used on weather maps to indicate where a high pressure is and always appear in the center of a high pressure area where the air pressure is highest.

A rule of thumb for meteorologists is increasing pressure to announce a weather improvement, while falling pressure leads to worsening weather. In practice, however, this will not always be the case. This has to do with the descending air in the high-pressure area.

The wind turns to a high pressure in the northern hemisphere of the earth's surface with the pointers clockwise in the Southern Hemisphere at the hands of the clock, theanticyclonic circulation . This is caused by the rotation of the earth.

High pressure areas move more slowly across the earth's surface than lows. Sometimes they prolonged standing still. If a high pressure stationary above example Norway, performs in the long cold winter winds from the east of the Netherlands, while talking about a long period will be hot in the summer.

An offshoot of the high pressure system is called a ridge of high pressure, high pressure quickly passing a trekrug or between tall. Best known is the Azores high to the Azores islands created by the exchange of heat between the tropics and the polar regions

Types [ edit ]
High pressure areas can be classified according to aetiology:
 * dynamic ;
 * thermal ;
 * orographic .

See also [ edit ]

 * European anticyclone
 * Blockade
 * Transportkou