| 利用雷达和自动站资料综合分析风暴移动和发展规律 |
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| 引用本文： | 徐亚钦,翟国庆,黄旋旋,等.利用雷达和自动站资料综合分析风暴移动和发展规律[J].大气科学,2011,35(1):134-146. |
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| 作者姓名： | 徐亚钦 翟国庆 黄旋旋 等 |
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| 作者单位： | 1.浙江大学地球科学系, 杭州,310027;中国气象科学研究院灾害天气国家重点实验室, 北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目40975021， 国家天气灾害实验室重点项目2008LASW-A03， 国家海洋环境预报中心的近海海区雷达资料同化技术研究项目H2081938 |
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| 摘 要： | 为了研究地面中尺度辐合对对流回波发展趋势的影响,本文利用多普勒雷达和经过质量控制的地面加密自动站资料,选取浙江宁波地区较典型的10次强对流天气过程,逐时统计地面辐合场、累计雨量、雷达回波之间的相互对应情况,并进一步通过Shuman-Shapiro滤波来揭示地面中尺度风场辐合与风暴发展的内在联系,最后基于所统计的回波发展...
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| 关 键 词： | 强对流天气 地面辐合 匹配统计 Shuman-Shapiro滤波 风暴外推 |
A Study of the Evolution Regularity of Storm Based on the Data of Radar and Automatic Station |
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| Xu Yaqin,Zhai Guoqing,Huang Xuanxuan and et al.A Study of the Evolution Regularity of Storm Based on the Data of Radar and Automatic Station[J].Chinese Journal of Atmospheric Sciences,2011,35(1):134-146. |
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| Authors: | Xu Yaqin Zhai Guoqing Huang Xuanxuan and |
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| Institution: | 1.Department of Earth Sciences, Zhejiang University, Hangzhou,310027;State Key Lab of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing,1000812.Ningbo Meteorology Bureau, Ningbo,315012 |
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| Abstract: | In order to study the effect of surface mesoscale convergence on the development of convective echoes, the authors analyze statistically the relationship of convergence field, rainfall, and radar echoes in the selected ten convective weather processes in Ningbo region by use of radar and surface automatic station data after quality control. And the role of surface mesoscale wind convergence in the storm development is revealed by use of the Shuman-Shapiro filter. At last, the storm is extrapolated with the cross-correlation method based on the statistics of relationship between the development of echoes and the surface convergence. The results indicate that: The surface mesoscale convergence in front of the radar echoes plays an important role in the echo occurrence and development, particularly the area where there exists surface mesoscale convergence line is more propitious to monomer newborn and development, at the same time it also has a great influence on the future direction and shape of the major echo. After scale separating by use of the Shuman-Shapiro filter it can be found in the front of and between the storms, the wind field interacts obviously with each other, as the transmission and media it plays an important role in the storm development. Finally, after extrapolating the storm based on the ground convergence field with the cross-correlation method, the shape and center of the echo have a very good correspondence between the extrapolation echoes filed and the fact echoes filed. |
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| Keywords: | convective weather surface convergence matching statistic Shuman-Shapiro filter storm extrapolation |
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