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气象:2009,35(7):33-38
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冷涡内部中尺度变形场的多普勒雷达观测和分析
(1.黑龙江省人工影响天气办公室,哈尔滨 150030;2.黑龙江省气象台)
Doppler Radar Observation and Analysis of Mesoscale Deformation Field in Cold Vortex
(1.Weather Modification Center of Heilongjiang Province, Harbin 150030;2.Meteorological Observatory of Heilongjiang Province)
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投稿时间:2008-02-29    修订日期:2009-04-03
中文摘要: 2005年4月20日,哈尔滨新一代天气雷达观测到东北冷涡内部具有中尺度的变形场结构,即 在雷达速度图上,存在两负两正且互为准对称的现象。在变形场中通常会引起锋生效应,而 雷达观测具有高时空分辨率,可以及时发现这种中尺度的变形场。本文应用实时雷达资料,配 合卫星云图及常规资料场,对该次过程进行分析。说明变形场在冷涡发展的过程中起到了重 要作用。
Abstract:On April 20,2005, a mesoscale deformation field structure in cold vertex was fou nd in the Doppler velocity picture which showed a symmetrical structure. Frontog enesis was usually caused in the deformation field which could be found timely i n radar observation with high spatial temporal resolution. By using the real ti me radar data, satellite image and conventional data. the synoptic process was a n alyzed. It indicated that the deformation field played an important role in the course of development of the cold vortex.
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基金项目:黑龙江省气象局重点技术研究项目“黑龙江省人工影响天气业务系统”资助。
引用文本:
王会山,张云峰,王承伟,安英玉,徐玥,2009.冷涡内部中尺度变形场的多普勒雷达观测和分析[J].气象,35(7):33-38.
Wang Huishan,Zhang Yunfeng,Wang Chengwei,An Yingyu,Xu Yue,2009.Doppler Radar Observation and Analysis of Mesoscale Deformation Field in Cold Vortex[J].Meteor Mon,35(7):33-38.