山东气象2017，Vol.37Issue(2)：57-64,8.DOI:10.19513/j.cnki.issn2096-3599.2017.02.007
W波段和Ka波段云雷达探测回波对比分析
Comparison of the echoes detected by W-band and Ka-band cloud radars
摘要
Abstract
By analyzing the difference between the echoes detected by the W-band radar and the cloud echoes detected by Ka-band radar at the same time, the detection capabilities of the W-band radar prototype are verified.The results show that: 1) W-band radar prototype operates reliably.The macro-parameters of clouds including the layer, boundary and thicker, the fine structure of cloud and the change of the microphysics parameters of clouds can be obtained by both the two band radars.Strong echoes, small speed and broad spectrum of ice clouds reveal existence of updrafts and more supercooled water.2) The capabilities to detect fog and haze of W-band radar with enhancement pattern in close to the ground is stronger than that of Ka-band radar.The two cloud radars have the same detection capabilities to thin clouds, but the less thicker, lower cloud top and less echo intensity for precipitation and thick clouds with more water content and multilayer clouds are measured by W-band radar because of the stronger attenuation to W-band radar, and the echo intensity of W-band radar is also reduced in the case of Rayleigh scattering.关键词
W波段云雷达/Ka波段云雷达/探测能力/云回波/云微物理参数Key words
W-band cloud radar/Ka-band cloud radar/detection capabilities/cloud echoes/microphysics parameters of clouds分类
大气科学引用本文复制引用
吴举秀,魏鸣,苏涛,王学荣,李勇,范亚驹..W波段和Ka波段云雷达探测回波对比分析[J].山东气象,2017,37(2):57-64,8.基金项目
国家自然科学基金项目(41305031) （41305031）
山东省气象局课题(2015sdqxm13) （2015sdqxm13）
江苏高校优势学科建设工程资助项目(PAPD) （PAPD）
