气象2018，Vol.44Issue(3)：416-424,9.DOI:10.7519/j.issn.1000-0526.2018.03.008
合肥地区一次小雨过程的W波段云雷达的云物理特征分析
Analysis on Cloud Physical Characteristics of a Light Rain Process in Hefei Detected by W-Band Cloud Radar
摘要
Abstract
Using the data detected by the W-band ground radar developed by China,the physical process of a cloud system with light rain in Hefei was analyzed,and the microphysical parameters in the water cloud and cirrus cloud were retrieved preliminarily based on the data from two different regions detected by the ground and airborne W-band radars.The results showed that:(1) The corresponding height where the echo intensity increased,and the Doppler velocity,linear depolarization ratio (LDR) and spectral width suddenly increased was the top of melting layer,then the thickness of melting layer was initially estimated according the LDR bright band.(2) Using empirical relations,the ice and liquid water content of cirrus cloud and water cloud were retrieved,and the effective radius of ice crystal cloud particles were also obtained using the derived formula.(3) Using bin-by-bin correction method in the groups,the echo intensity of water cloud was corrected,then the liquid water content was retrieved based on the corrected echo intensity,so the retrieval errors were reduced.关键词
W波段云雷达/云微物理特性/云微物理参数反演/LDR亮带/衰减订正Key words
W-band cloud radar/micro-characteristics of cloud/microphysical parameter retrieval/linear depolarization ratio (LDR) bright band/attenuation correction分类
天文与地球科学引用本文复制引用
吴举秀,马传成,陈庆亮,刘伟,张骞,王锡芳..合肥地区一次小雨过程的W波段云雷达的云物理特征分析[J].气象,2018,44(3):416-424,9.基金项目
国家自然科学基金项目(41305031)、公益性行业(气象)科研专项(GYHY201306040、GYHY201406033)、山东省气象局面上课题(2015sdqxm13)和江苏高校优势学科建设工程资助项目(PAPD)共同资助 （41305031）
