摘要
利用2022年7月昆明地区一次冰雹过程的X波段双偏振相控阵阵列天气雷达资料,采用三维变分同化算法,对其演变过程的特征进行分析,得到冰雹初生发展、孕育成熟、降雹消散阶段的组合反射率、双偏振量等特征,研究结果表明X波段相控阵阵列雷达具有高时空分辨率的特征,通过偏振信息获取云中粒子的微观特征,有助于低纬高原中小尺度天气的精细化探测。
Based on the X-band dual-polarization phased array weather radar data of a hailstorm process in Kunming in July 2022,and by using a three-dimensional variational assimilation algorithm,the characteristics of its evolution process are analyzed,and the combined reflectivity and double polarization of hail in the initial development,gestation maturity,hail dissipation stage,etc.are obtained,The research results show that X-band phased array radar has the characteristics of high spatiotemporal resolution,and the microscopic characteristics of particles in the cloud obtained through polarization information is of great help to the fine detection of small-scale weather in the low-latitude plateau.
作者
张涛
徐八林
何倩
马芳
温艳合
李成鹏
ZHANG Tao;XU Balin;HE Qian;MA Fang;WEN Yanhe;LI Chengpeng(Key Open Laboratory of Atmospheric Sounding,China Meteorological Administration,Chengdu 610225,China;Yunnan Atmospheric Detection Technology Support Center,Kunming 650034,China;Anning Meteorological Bureau,Kunming 650300,China;Yunnan Provincial Center for Artificial Weather Modification,Kunming 650034,China)
出处
《灾害学》
CSCD
北大核心
2023年第4期89-93,227,共6页
Journal of Catastrophology
基金
国家自然基金(U2142204)
云南省科技厅(202203AC100021)
中国气象局大气探测重点实验室(2021KLAS01Z)。
关键词
相控阵阵列雷达
冰雹
双偏振
跃增
低纬高原
西南地区
phased array radar
hail
double polarization
jump increase
low-latitude plateau
southwest China
