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中国农学通报 ›› 2019, Vol. 35 ›› Issue (13): 112-118.doi: 10.11924/j.issn.1000-6850.casb18100052

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

X波段双偏振多普勒雷达降水观测

王湘玉, 王雨琪, 李洋   

  1. 内蒙古通辽市气象局
  • 收稿日期:2018-10-16 修回日期:2018-12-21 接受日期:2019-01-10 出版日期:2019-05-05 发布日期:2019-05-05
  • 通讯作者: 王湘玉
  • 基金资助:
    国家自然科学基金项目“基于X波段双偏振雷达参量的强对流云雨滴谱参数反演与验证研究”(项目批准号:41575037)。

X-Band Double Polarization Doppler Radar: Precipitation Observation

  • Received:2018-10-16 Revised:2018-12-21 Accepted:2019-01-10 Online:2019-05-05 Published:2019-05-05

摘要: 以X波段双偏振雷达的多种参数为依据,综合使用雷达及相关雨量站的降水观测资料,从基本组成及雷达工作方式2 个方面简述了X波段双偏振多普勒雷达,并针对2014 年8 月9 日内蒙古地区的一次对流性降水天气过程,着重分析X波段双偏振多普勒雷达降水观测。结果表明:(1)在流性雷暴云降水过程中,大部分冰晶类将会在6~8 km融化为小雨滴,或以冻滴的形式存在;(2)强雷暴云天气发生时,在强雷暴云中上层的存在大部分的小粒子,并无大量的水成物粒子存在。该研究不仅能够探索雷达对降水进行定量估测的能力,还能够通过提升X波段双偏振雷达降水观测的适用性,以期为今后X波段双偏振多普勒雷达在降水观测中的应用提出一定的参考依据。

关键词: 豇豆, 豇豆, 始花节位, 遗传, 主基因, 多基因

Abstract: Based on various parameters of X- band double polarization radar and the observation data of precipitation from radar and related stations, we briefly described the X-band double polarization doppler radar from two aspects: basic composition and working modes, and aiming at a convective precipitation weather process in Inner Mongolia on August 9, 2014, we analyzed the X-band double polarization doppler radar precipitation observation. The results showed that: (1) during the process of fluid thunderstorm cloud precipitation, most ice crystals would melt into small raindrops in 6-8 km, or existed in the form of frozen droplets; (2) when strong thunderstorm clouds occurred, in the upper part of a strong thunderstorm cloud, most of the small particles were present, and there were not a large number of water-forming particles. The research can not only explore the radar’s ability to quantitatively estimate precipitation, but also improve the applicability of X-band double polarized radar to precipitation observation.