Abstract
Abstract Tropical showers from warm cumulus-type clouds were studied numerically in an axisymmetric cloud model. Drop sizes were classified into 61 groups and condensation (evaporation), collection and breakup processes were introduced. The distinctive character of such shower—heavy, short-lived and localized nature, without any strong wind speed change near the ground—was simulated successfully. Because of the weak inflow, raindrop size distribution is primarily determined by the vertical trajectory of drops. The calculated raindrop size distribution agrees relatively well with the Marshall-Palmer size distribution curve. A one-dimensional cylindrical cloud model (Asai-Kasahara) is also compared with the present symmetric cloud model, and it was found that both rainfall and the life cycle for deep clouds were difficult to stimulate by a simple one-dimensional model. It was also found that the disturbance area due to the cumulus-type cloud is more localized than in the stratocumulus-type cloud.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
