固态毫米波雷达探测模式的对比评估与分析

武静雅; 刘黎平; 郑佳锋

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DOI:10.7519/j.issn.1000-0526.2016.07.002

气象:2016,42(7):790-798

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固态毫米波雷达探测模式的对比评估与分析

武静雅¹, 刘黎平¹, 郑佳锋²

(1.中国气象科学研究院灾害天气国家重点实验室，北京 100081;2.中国气象科学研究院灾害天气国家重点实验室，北京 100081 南京信息工程大学，南京 210044)

Contrast Assessment and Analysis of a Solid State Millimeter Wave Radar Modes

WU Jingya¹, LIU Liping¹, ZHENG Jiafeng²

(1.State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081;2.State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081 Nanjing University of Information Science and Technology, Nanjing 210044)

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投稿时间：2015-10-14 修订日期：2016-02-26

中文摘要: 利用2014年广东阳江和青藏高原外场观测中多种探测仪器的观测资料，对比了灾害天气国家重点实验室与航天科工23所联合研制的固态毫米波雷达三种探测模式最小可测回波强度、可测液态水(冰水)含量、观测同一目标时回波强度的差异以及与K波段微降水雷达回波强度的差异等。结果表明：(1) 毫米波雷达不同模式最小可测回波强度差异与理论差异一致，边界层模式和降水模式能观测近地面全部层云和积云，卷云能观测5km高度冰水含量在0.0007 g·m-3以上的卷云，随着高度上升探测能力有所下降；(2) 毫米波雷达使用不同模式观测同一目标时，不同观测模式宏观回波强度一致，大部分差异不超过3.5 dB；(3) K波段微降水雷达和Pasivel2激光雨滴谱仪的近地面回波强度一致，毫米波雷达与K波段微降水雷达存在系统差异。

中文关键词: 固态毫米波雷达，探测模式，最小可测回波强度，对比分析

Abstract:Based on the data of several instruments applied in the 2014 Yangjiang and Tibetan experiments, the sensitivity, liquid water content (LWC or ice water content, IWC) can be detected and difference between different mode echoes of a new solid state millimeter wave radar (SMMR) constructed by State Key Laboratory of Severe Weather (LaSW) and 23th Institute of Aerospace Science and Technology are contrasted. Also, difference between this radar and micro rain radar (MRR) echo is contrasted. The results show: (1) differences between different modes of SMMR are in reasonable agreement with theoretical results. All the status and cumulus in near surface layer can be observed by boundary layer mode and precipitation mode. Cirrus mode can observe cirrus which ice water content is over 0.0007 g·m-3. Observation capability of all three modes decreased with the increase of height. (2) Differentials between three mode echoes are mostly less than 3.5 dB. (3) MRR echo and Pasivel2 laser optical disdrometer echo are almost same, system difference existed between MRR and SMMR echo.

keywords: solid state millimeter wave radar, modes, sensitivity, contrast and analyze

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基金项目:国家自然科学基金项目(91337103)资助

作者	单位
武静雅	中国气象科学研究院灾害天气国家重点实验室，北京 100081
刘黎平	中国气象科学研究院灾害天气国家重点实验室，北京 100081
郑佳锋	中国气象科学研究院灾害天气国家重点实验室，北京 100081 南京信息工程大学，南京 210044

Author Name	Affiliation
WU Jingya	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081
LIU Liping	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081
ZHENG Jiafeng	State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081 Nanjing University of Information Science and Technology, Nanjing 210044

引用文本：
武静雅,刘黎平,郑佳锋,2016.固态毫米波雷达探测模式的对比评估与分析[J].气象,42(7):790-798.
WU Jingya,LIU Liping,ZHENG Jiafeng,2016.Contrast Assessment and Analysis of a Solid State Millimeter Wave Radar Modes[J].Meteor Mon,42(7):790-798.