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热带气旋和台风是一回事吗(链接)
Ren Min Ri Bao·2025-09-05 22:22

Group 1 - Tropical cyclones are classified into six categories based on maximum wind speed, including tropical depression, tropical storm, severe tropical storm, typhoon, severe typhoon, and super typhoon [1] - The maximum average wind speed for each category ranges from 10.8-17.1 m/s for tropical depression to over 51.0 m/s for super typhoon [1] - The formation of tropical cyclones requires several necessary conditions, including warm ocean waters, a moist middle troposphere, low vertical wind shear, sufficient Coriolis force, and an initial low-pressure disturbance [1] Group 2 - Tropical cyclones are most common during the summer and autumn seasons and have a lifecycle that can be divided into four stages: formation, development, maturity, and dissipation [2] - Mature tropical cyclones exhibit structures such as an eye, eyewall, and spiral rainbands, with diameters ranging from 100 km to 2000 km [2] - While tropical cyclones that do not make landfall can persist over the ocean for extended periods, those that do land typically weaken rapidly but may still cause significant rainfall and natural disasters due to residual low-pressure systems [2]