气象学报2016,Vol.74Issue(5):815-826,12.DOI:10.11676/qxxb2016.057
毫米波雷达与无线电探空对云垂直结构探测的一致性分析
Consistency analysis for cloud vertical structure derived from millimeter cloud radar and radiosonde profiles
摘要
Abstract
Millimeter cloud radar is one of the powerful instruments for cloud vertical structure observation.It can continuously monitor cloud changes and obtain complete information of cloud vertical structure including the cloud base height,cloud top height,and cloud thickness etc.Meanwhile,radiosonde observations can directly and accurately describe the vertical structure of atmospheric humidity due to its in situ measurement advantages.Observations of radiosonde can be further processed to gen-erate cloud vertical structure information,which can then be used as a data source to validate the cloud vertical structure ob-served by millimeter cloud radar and assess the performance of millimeter cloud radar for cloud vertical structure observations. In this study,based on the millimeter cloud radar reflectivity data and sounding data collected at Beijing Observatory from 28 October 2014 to 17 February 2015,appropriate methods for calculations of cloud boundary height from the millimeter cloud ra-dar and radiosonde observations are designed or selected,and their consistency is analyzed.The results show that the cloud vertical structures derived from cloud radar and radiosonde observations have a good consistency regarding to the cloud base height,cloud top height in low or middle level,and its vertical stratification.Due to the limitation of the detection capability of the millimeter cloud radar,it can not detect cloud tops above 10 km height.Thereby large differences are found in high-level cloud top height between millimeter cloud radar and radiosonde observations.关键词
毫米波测云雷达/L 波段无线电气球探空/云垂直结构/一致性分析Key words
Millimeter cloud radar/L-band radiosonde/Cloud vertical structure/Consistency analysis分类
天文与地球科学引用本文复制引用
王喆,王振会,曹晓钟..毫米波雷达与无线电探空对云垂直结构探测的一致性分析[J].气象学报,2016,74(5):815-826,12.基金项目
国家自然科学基金项目(41275043、61531019)、江苏省高校优势学科建设工程资助项目(PAPD)。 ()