3. What is cyclone?
Answers
Answer:
A cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure.
Answer:
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Explanation:
In meteorology, a cyclone (/ˈsaɪ.kloʊn/) is a large scale air mass that rotates around a strong centre of low atmospheric pressure.[1][2] Cyclones are characterized by inward spiralling winds that rotate about a zone of low pressure.[3][4] The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale (the synoptic scale). Warm-core cyclones such as tropical cyclones and subtropical cyclones also lie within the synoptic scale.[5] Mesocyclones, tornadoes, and dust devils lie within smaller mesoscale.[6] Upper-level cyclones can exist without the presence of a surface low and can pinch off from the base of the tropical upper tropospheric trough during the summer months in the Northern Hemisphere. Cyclones have also been seen on extraterrestrial planets, such as Mars, Jupiter, and Neptune.[7][8] Cyclogenesis is the process of cyclone formation and intensification.[9] Extratropical cyclones begin as waves in large regions of enhanced mid-latitude temperature contrasts called baroclinic zones. These zones contract and form weather fronts as the cyclonic circulation close and intensifies. Later in their life cycle, extratropical cyclones occlude as cold air masses undercut the warmer air and become cold core systems. A cyclone's track is guided over the course of its 2 to 6-day life cycle by the steering flow of the subtropical jet stream.
Weather fronts mark the boundary between two masses of air of different temperature, humidity, and densities, and are associated with the most prominent meteorological phenomena. Strong cold fronts typically feature narrow bands of thunderstorms and severe weather, and may on occasion be preceded by squall lines or dry lines. Such fronts form west of the circulation centre and generally move from west to east; warm fronts form east of the cyclone centre and are usually preceded by stratiform precipitation and fog. Warm fronts move poleward ahead of the cyclone path. Occluded fronts form late in the cyclone life cycle near the centre of the cyclone and often wrap around the storm centre.
Tropical cyclogenesis describes the process of development of tropical cyclones. Tropical cyclones form due to latent heat driven by significant thunderstorm activity and are warm core.[10] Cyclones can transition between extratropical, subtropical, and tropical phases. Mesocyclones form as warm core cyclones over land and can lead to tornado formation.[11] Waterspouts can also form from mesocyclones, but more often develop from environments of high instability and low vertical wind shear.[12] In the Atlantic and the northeastern Pacific oceans, a tropical cyclone is generally referred to as a hurricane (from the name of the ancient Central American deity of wind, Huracan), in the Indian and South Pacific oceans it is called a cyclone, and in the northwestern Pacific, it is called a typhoon.[13] The growth of instability in the vortices is not universal. For example, the size, intensity, moist-convection, surface evaporation, the value of potential temperature at each potential height can affect the nonlinear evolution of a vortex.[14][15] IF HELPFUL PLEASE MARK AS BRAINLIEST.