Radar and Numerical Modeling Investigations of Dynamical and Microphysical Processes Within Deep Subtropical Convection During CaPE

9704547作为先前研究的延续，首席调查员将继续调查热带深层对流中风暴动力学和微物理之间的相互作用。分析部分包括：(A)用于确定内部流动的多个多普勒雷达，(B)用于确定整体微观物理的多参数雷达，以及(C)用于确定现场微物理和运动学的飞机数据。这些数据集的综合将产生对深对流中相互作用的微物理、运动学和电场的全面描述。进一步整合这些数据将有助于评估雷达测量的准确性。此外，数值模拟将用于进一步研究深对流的动力学和微物理过程，并将有助于解释各种雷达和飞机观测。这项延续建议下包括的具体任务包括：确定潜热的随时间变化的垂直分布情况，查明与深对流中的潜热有关的重要微物理过程，以及潜热对深降水对流动力学的影响；调查近地单元动态和微观物理相互作用的各种机制；a)利用飞机和多个多普勒数据，检查单体(风暴)的卷积性质，并进行3维数值模拟；b)量化与多次多普勒风反演和多参数雷达测量有关的误差和过滤。该项目的成功完成将促进对热带对流中降水产生方式的理解。***

9704547 Knupp In a continuation of previous research, the Principal Investigator will pursue investigation of the interactions between storm dynamics and microphysics in deep tropical convection. The analysis components include: (a) multiple Doppler radar for determination of internal flows, (b) multiparameter radar for determination of bulk microphysics, and (c) aircraft data for determination of in situ microphysics and kinematics. Integration of these data sets will yield a comprehensive description of the interacting microphysical, kinematic and electric fields within deep convection. Further integration of these data will facilitate evaluation of the accuracy of radar measurements. In addition, numerical simulations will be used to further study the dynamical and microphysical processes of deep convection, and will facilitate interpretation of the various radar and aircraft observations. Specific tasks included under this continuation proposal include: determination of the time-dependent vertical profiles of latent heating, identification of the important microphysical processes associated with latent heating within deep convection, and the impact of latent heating on the dynamics of deep precipitating convection; investigation of the various mechanisms by which cells in proximity interact dynamically and microphysically; a) examination of the cell (storm) entrainment properties using aircraft and multiple Doppler data, and 3-D numerical simulations; b) quantification of errors and filtering associated with multiple Doppler wind retrievals and multiparameter radar measurements. Successful completion of this project will advance understanding of how precipitation is produced in tropical convection. ***