Abstract
An isolated storm-triggered heavy precipitation event near the Central Urban Area (CUA) of Beijing on 9 August 2011 was simulated using a cloud-scale simulation. The atmospheric water budgets in both the initiation area (TA area) and the heavy rainfall region over the CUA (UAS area) associated with the storm were investigated using the three-dimensional (3D) precipitation equation, respectively. The main results showed that the moisture-related rate (QWV) largely offset the hydrometer-related rate (QCM) in both areas, which is different from the previous studies on topographic rainfall and tropical cyclone rainfall. The magnitudes of the precipitation equation related terms were generally more prominent in the UAS area than the TA area, followed by heavier precipitation rate (PS) in the UAS area, due to stronger upward motion contributed by the mature of the system in the former area. Moreover, the initiation, development and movement of the storm also resulted in different vertical dynamic structures in the two areas. And the differences of vertical dynamic structures and their evolutions triggered different water vapor and hydrometeor budgets in these two contiguous areas. Analysis of vertical profiles of hydrometeors in both areas further confirmed the above conclusions.
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.
