2018年常州地区四次降雪过程的滴谱特征分析  

Analysis of Characteristics of Particle Spectrum during Four Snow Processes in Changzhou of 2018

作　　者：温静 雷正翠[1] 吴建秋[1] 黄文彦[1] 钱半吨 WEN Jing;LEI Zhengcui;WU Jianqiu;HUANG Wenyan;QIAN Bandun(Changzhou Meteorological Office of Jiangsu Province,Changzhou Jiangsu 213022;Liyang Meteorological Office of Jiangsu Province,Liyang Jiangsu 213300)

机构地区：[1]常州市气象局,江苏常州213022 [2]溧阳市气象局,江苏溧阳213300

出　　处：《河南科技》2021年第5期147-149,共3页Henan Science and Technology

基　　金：中国气象局预报员专项(CMAYBY2019-043);江苏省气象局科研基金项目(KM201704);江苏省气象局预报员专项(JSYBY201914);常州市气象局项目(1903)。

摘　　要：本文利用NCEP再分析资料和雨滴谱仪揭示常州地区2018年四次降雪过程的微物理特征及规律。结果表明,四次降雪过程的天气形势均为中高层西到西南风、低层东到东北风的配置。低层为降雪过程提供了重要的冷垫条件,而700 hPa西南急流暖湿气流在此冷垫上沿着锋面爬升,为降雪提供了有利的水汽条件和能量条件。In this paper,the Microphysical Characteristics and rules of four snowfall processes in Changzhou region in 2018 were revealed by NCEP reanalysis data and raindrop spectrometer.The results show that the weather situa⁃tion of the four snowfall processes is the middle and high-rise wind from west to southwest,and the low east to north⁃east wind.The lower layer provides important cold pad conditions for the snowfall process,while the warm and wet flow of southwest jet flows of 700 hPa climbs along the front of the cold pad,which provides favorable water vapor and energy conditions for snow falling.

关 键 词：降雪 雨滴谱仪器 粒子谱 

分 类 号：P458.1[天文地球—大气科学及气象学]