Typhoon and tropical cyclone suck up air from the environment in the space near ground surface on one hand, and on the other hand, in the upper troposphere several thousands to ten thousands meters high, makes sucked air wet and discharges it in large amount into the environment.
台風や熱帯低気圧は、地上付近では周囲から空気を吸い上げる一方、上空数千m～1万mの対流圏上層では、吸い上げた空気を湿らせて周囲に大量に放出している。