气象学报2026，Vol.84Issue(2)：173-184,12.DOI:10.11676/qxxb2025.20250025
水平对流卷研究进展
Research progress on horizontal convective rolls:A review
摘要
Abstract
Horizontal Convective Rolls(HCRs)are defined as horizontal vortices that rotate in the opposite direction within the convective boundary layer.They are one of the common forms of shallow convection in the atmosphere.HCRs can cause strong turbulence and water vapor mixing in the boundary layer as well as exchanges of mass,momentum,and heat flux between the boundary layer and the free atmosphere.Meteorologists have conducted systematic research on structural characteristics,formation mechanisms,and impacts on the boundary layer of HCRs through field observation experiments,theoretical derivation,flume experiments,and numerical simulations.The results indicate that inflection-point instability and thermal instability are the main mechanisms for the formation of HCRs.The organized turbulent transport associated with HCRs can cause non-uniform distribution of flux in the horizontal direction of the boundary layer.The vertical motion,high specific humidity,and positive temperature anomalies in the ascending branch of the HCRs provide favorable conditions for cold-flow snowstorm and deep convection.At present,large eddy simulation is the main numerical method for studying HCRs.However,the mechanisms by which HCRs trigger heavy snowfall and independently trigger deep convection are still unclear.It is recommended that greater use be made of new remote sensing data in the construction of HCRs'three-dimensional structural models and in the analysis of shallow convective cloud morphology.Cloud penetration experiments on cold-flow snow processes should be conducted to explore the effects of HCR-related aerosols and flux transport on ice microphysical processes.Based on a clear understanding of the structural characteristics of HCRs and the environmental conditions favorable for deep convection initiation,a nowcasting method for HCR-triggered deep convection should be developed using key precursor factors to improve the operational forecasting of HCR-induced hazardous weather.关键词
水平对流卷/外场试验/数值模拟/冷流雪/深对流Key words
Horizontal convective rolls/Field experiment/Numerical simulation/Cold-flow snowstorm/Deep convection分类
天文与地球科学引用本文复制引用
顾问,戴建华,翁之梅,韩志惠,管理,杜明斌,张晶,夏杨..水平对流卷研究进展[J].气象学报,2026,84(2):173-184,12.基金项目
国家自然科学基金(U2142214)、上海市自然科学基金(23ZR1447300、23ZR1456900、24ZR1462900)、华东区域相控阵天气雷达应用联合实验室、中国气象局强对流天气重点创新团队. （U2142214）
