气候变化领域集成服务门户(CCPortal): Numerical Simulation and the Underlying Mechanism of a Severe Hail-Producing Convective System in East China

CCPortal

DOI	10.1029/2019JD032285
	Numerical Simulation and the Underlying Mechanism of a Severe Hail-Producing Convective System in East China
	Yin L.; Ping F.; Xu H.; Chen B.
发表日期	2021
ISSN	2169897X
卷号	126 期号:11
英文摘要	A severe convective system that produced egg-sized hail in Jiangsu province in eastern China on April 28, 2015 was simulated using a cloud-resolving Weather Research and Forecasting model with the spectral bin microphysics scheme. The simulation reproduced the two stages of the convective system: the linear convective system (LCS) and the bow echo system (BES) stages. During the LCS stage, the intensity of updrafts was slightly stronger than that in the BES stage, with abundant supercooled water above the −20°C layer, and graupel and hail mainly generated in this period. The microphysical budget analyses and size distribution characteristics of hail were studied within one cell that produced hail during the LCS. It was suggested that hail mainly formed through water-graupel collision and increased in size by collecting liquid water. Hail particles with smaller diameter were located around the perimeter of the main updrafts, while larger ones were distributed at the left edge of the updrafts. Trajectories and size growth processes of hailstones within the chosen cell were calculated by a three-dimensional hail growth model, and it was found that hail originated from the middle levels on the east side of the updrafts, and were transformed westward and downward to the lower levels. They continued to ascend along the left edge of the updrafts and experienced one or more up-down recycles and fell down to the ground on the west side of the updrafts. © 2021. The Authors.
英文关键词	hail growth model; Hailstorm; mechanism research; spectral bin microphysics scheme
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185142
作者单位	Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; School of Remote Sensing and Geomatics Engineering, Nanjing University of Information Science and Technology, Nanjing, China; Beijing Institute of Applied Meteorology, Beijing, China; School of Atmospheric Sciences, Nanjing University, Nanjing, China
推荐引用方式 GB/T 7714	Yin L.,Ping F.,Xu H.,et al. Numerical Simulation and the Underlying Mechanism of a Severe Hail-Producing Convective System in East China[J],2021,126(11).
APA	Yin L.,Ping F.,Xu H.,&Chen B..(2021).Numerical Simulation and the Underlying Mechanism of a Severe Hail-Producing Convective System in East China.Journal of Geophysical Research: Atmospheres,126(11).
MLA	Yin L.,et al."Numerical Simulation and the Underlying Mechanism of a Severe Hail-Producing Convective System in East China".Journal of Geophysical Research: Atmospheres 126.11(2021).