Anticyclone

On our planet there are meteorological phenomena linked to atmospheric pressure and the circulation of air masses. One of these phenomena is the cyclone or storm, in which the air masses rotate in one direction at high speeds, producing an unfavorable climatic situation for the ecosystem and characterized by low atmospheric pressure. Faced with these types of environmental events, there is also its counterpart which is the anticyclone , a phenomenon that allows a clear climate without rainfall but that can also affect the ecosystem in other ways and in which there are high pressures.

It is produced by the opposite circulation of air in relation to the direction of the hemisphere in which it is located . This produces changes in temperature and in the climate where it occurs, generating dry, sunny or very cold climates and with clear skies.

Its name is given because they go in the opposite direction to cyclones or storms.

History

It has a cyclical history since this phenomenon is repeated irregularly every year as an effect of pressure changes and the movement of air masses.

Climate changes and environmental deterioration have generated effects on the behavior of anticyclones, sometimes extending their duration and intensity.

How does the anticyclone originate?

It originates with high atmospheric pressure . The air descends on the ground from the upper layers of the atmosphere generating a phenomenon called subsidence .

The development of an anticyclonic air circulation is called anticyclogenesis and depending on how it is, anticyclones are classified as warm or cold .

Effects edit

Anticyclones generate some meteorological effects in the areas where they occur, such as fogs, frost, increased pollution, clear skies and even headaches . All these effects occur in the northern and southern hemispheres of the planet, altering the temperature and movement of the air masses in both spaces.

Representation

Anticyclones are represented on maps with lines connecting points of equal pressure called isobars .

The isobar maps show the graphic representation of the behavior of the anticyclone over the spaces that this phenomenon encompasses.

Examples of anticyclone

In different parts of the world, many types of anticyclones with very specific characteristics have been presented.

Siberian Anticyclone

This meteorological phenomenon occurs in Eurasia for much of the year and is characterized by being a dry and cold air mass with temperatures that can reach -60 ° C. It is the strongest in the northern hemisphere and is responsible for severe winter cold and dry conditions in Siberia .

The start time of this is given in August, takes force in December and continues until the end of April.

Subtropical

In the subtropical zone, large, elongated anticyclones are generated, which tend to stand out in the average pressure distribution in any month. These anticyclones are stationary or move very slowly .

There are two anticyclones in the subtropical zone. These are the Azores and the Pacific

Dynamic

The dynamic Anticyclone originates with the descent of an air mass that is pushed to the surface of the Earth by advection in the high zone. In this type of anticyclone the climate is hot, dry and sunny .

North Atlantic Anticyclone

The North Atlantic anticyclone also known as the Azores anticyclone is a dynamic anticyclone located on the Portuguese islands of the Azores. This phenomenon presents a dry, sunny and hot climate in the summer seasons and its influence can extend in autumn, spring and even in winter. The center of this is usually located in the center of the Cantabrian Sea causing dry winters and displacing existing cyclones.

South Pacific Anticyclone

This anticyclone is the product of high pressure, the circulation of air masses from south to north that collect the existing moisture, transporting it to the coasts where they condense generating low clouds in the months of May to October with high moisture content in the atmosphere.