气象科学2017，Vol.37Issue(4)：478-486,9.DOI:10.3969/2016jms.0039
2015年10月29日弱降雨前后的层状云微物理参数反演和分析
Microphysical parameters retrieval and analysis on stratus cloud before and after light rainfall on October 29,2015
摘要
Abstract
In order to study the cloud microphysical properties,the data of Ka-band millimeter radar and microwave radiometer were used to retrieve the stratus cloud microphysical variables of a light rainfall process over Shouxian,Anhui province on Oct.29 2015.Both single-factor and double-factor methods were used for retrieval.The methodology was firstly introduced,and then the cloud microphysical variables were retrieved and comparatively analyzed.The result shows as that:(1) the stratus cloud droplet concentration was about 1000 cm-3 before rainfall,and the effective radius was smaller than 4.5 micrometers.(2)The stratus cloud droplet concentration turned to be significantly less,about 500 cm-3 after rainfall,but the effective radius was slightly increased by 1 to 1.5 micro-meters.(3) Cloud liquid water content weakly increased after rainfall,no more than 0.1 g/m3.(4)Before rainfall,the cloud microphysical variables fluctuated significantly with height,but the tendency became smoothly after rainfall,which implied that the cloud was getting more stable dynamically.关键词
毫米波雷达和微波辐射计/云微物理参数/反演/对比分析Key words
Millimeter-wavelength radar and microwave radiometer/Cloud microphysical variable/Retrieval/Comparable analysis分类
天文与地球科学引用本文复制引用
黄佳欢,黄兴友,黄勇,韦凯华,马雷..2015年10月29日弱降雨前后的层状云微物理参数反演和分析[J].气象科学,2017,37(4):478-486,9.基金项目
国家自然科学基金资助项目(41475034) （41475034）
国家重点基础研究发展计划(973计划)项目(2013CB430101) （973计划）
江苏省高等学校大学生实践创新训练计划项目(201410300052) （201410300052）
