| 摘要: |
| 通过对一次典型弓状降雹回波区的流场进行反演及特点分析,发现用矩不变量法反演出的回波区流场结构,与藤田关于弓状回波的概念模式非常吻合,利用该方法估测出的流场、散度场、涡度场所表现出的信息,与降雹实况是一致的。该研究可为中小尺度强天气的监测,提供高时空分辨率的流场资料。 |
| 关键词: 雹暴 弓状回波 流场结构 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金课题49275237的资助 |
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| RETRIEVAL AND ANALYSIS OF AN ARCH SHAPED ECHO ZONE |
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Hu Mingbao1, liu e2, Tang Dazhang3
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1.Air Force Institute of Meteorology, Nanjing, 211101;2.Guizhou Provincial Weather Bureau;3.Nanjing Institute of Meteorology
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| Abstract: |
| In this paper,the stream field structure of arched hail hallout zone,evaluated by using moment invariant has been analysed.The result shows that the structure is approximately to the fujita model well.So,it′s a valuable method using moment invariant to quantitatively analyse the radar data. |
| Key words: Hail storm Arched echo Flow field structure |
