In the tropics, cyclonic systems known as tropical depressions may develop with central pressures less than 2 mb lower than the environment. Associated with periods of intense rain, these systems usually move westward. Those which intensify significantly pressures falling below mb are called tropical cyclones or hurricanes. Because their horizontal scale is far less than that of their middle-latitude counterparts, the pressure gradient is tighter, resulting in more intense winds.
Bibliography: Anthes, R. Create a List. List Name Save. Rename this List. Rename this list. List Name Delete from selected List. Save to. Save to:. Save Create a List. Create a list. Save Back. Cyclone and Anticyclone. Grades 6—8 , 9— As it cools down, the particles in the air contract and moves closer together due to a loss of energy.
This causes the air to become heavier, putting more pressure on the surface below, which results in the creation of a high-pressure system. As mentioned, winds blow from a high-pressure to a low-pressure system. In the case of an anticyclone, it blows and diverges away from the center of the high-pressure system.
As this article clearly illustrated, there are some clear differences between a cyclone and an anticyclone. Both weather phenomena are characterized by wind circulation around a pressure system, but that is where the similarities end. In this article, we examined the primary differences between these two meteorological events. We also took a closer look at how each phenomenon develops and what its characteristics are. Until next time, keep your eye on the weather! Cyclones Vs Anticyclones The difference between a cyclone and an anticyclone was already summarized during the introduction, but a more elaborate explanation will help better understand how the two phenomena differ.
Cyclone vs Anticyclone: The Key Differences The following table highlights the key differences between a cyclone and an anticyclone. Also known as Lows. Also known as Highs. Circulates a low-pressure system. Circulates a high-pressure system. In a cyclone, air near the ground is pushed towards the low-pressure center of the cyclone and then rises upward, expanding and cooling as it moves. As it cools, the rising air becomes more humid, leading to cloudiness and high humidity within the cyclone.
Cyclonic winds move across nearly all regions of the Earth except the equatorial belt and are generally associated with rain or snow. Anticyclone is any large wind system that rotates about a center of high atmospheric pressure, clockwise in the northern hemisphere and counterclockwise in the southern hemisphere.
This generally produces light, steady rain to the northeast of a low, ahead of the warm front. Cyclones also draw in cold air from the north. This colder air forms a cold front, which collides with the warm, moist air to produce showers and thunderstorms to the southeast of a low, ahead of the cold front.
Anticyclones are areas of high pressure. The sinking air spreads out when it reaches the ground, producing a divergence at the surface. Aloft, air rushes in to fill the void, creating a convergence aloft. Anticyclones produce a stable atmosphere. Anticyclones, or highs, are also referred to as blocking highs because they tend to force areas of low pressure to travel around them. For example, a hurricane tropical cyclone that encounters an area of high pressure will be deflected around the cyclone.
Blocking highs have spared the East Coast of the United States from many hurricane strikes, pushing them out over the Atlantic Ocean. In general, anticyclones are associated with fair weather.
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