STUDY OF CINRAD/SA PRODUCTS FOR A HAIL STORM

Zhu Junjian; Diao Xiuguang; Huang Xiushao

Vol.15, NO.5, 2004

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Zhu Junjian, Diao Xiuguang, Huang Xiushao. Study of CINRAD/SA products for a hail storm. J Appl Meteor Sci, 2004, 15(5): 579-589.

Citation:

Zhu Junjian, Diao Xiuguang, Huang Xiushao. Study of CINRAD/SA products for a hail storm. J Appl Meteor Sci, 2004, 15(5): 579-589.

Zhu Junjian, Diao Xiuguang, Huang Xiushao. Study of CINRAD/SA products for a hail storm. J Appl Meteor Sci, 2004, 15(5): 579-589.

Citation:

Zhu Junjian, Diao Xiuguang, Huang Xiushao. Study of CINRAD/SA products for a hail storm. J Appl Meteor Sci, 2004, 15(5): 579-589.

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STUDY OF CINRAD/SA PRODUCTS FOR A HAIL STORM

Shandong Meteorological Observ atory, J inan 250031

Received Date: 2003-03-24
Rev Recd Date: 2004-05-17
Publish Date: 2004-10-31

Abstract

Abstract

The products of CINRAD/SA during the course of generation, development and motion of a hail-storm which occurred near Dong'e county in Shandong Province on September 27, 2002 are analyzed. The storm has the characteristics of supercell, such as a "V-notch", a boundary weak echo range (BWER) and a mesocyclone. Mesocyclone exists in the storm for almost 90 min. The speed of relative movement (SRM) in different slice can also display the procedure of the mesocyclone occurring, developing and dying out. The storm tracking information (STI), mesocyclone (M), hail index (HI) and vertical integrated liquid water (VIL) are valuable for identifying and forecasting the hail.
- Storm tracking information (STI);
- Hail index (HI);
- Mesocyclone;
- ertical integrated liquid water (VIL)

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References(8)

Figures and Tables

图 1 风暴单体生消和移动路径图

(图中圆点表示不同时刻风暴单体质心的位置, 单体1第1个生成, 单体2、3为单体1右侧不断生成的新单体, 图中距离圈间隔50 km)

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图 2 1.5度仰角反射率PPI产品合成图

（图中回波表示不同时次1.5度仰角的位置图，白色框内数字表示世界时间，右侧表示雷达信息和回波强度等级等。图中距离圈每圈50km）

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图 3 3个单体的生消过程

(单体1首先生成, 单体2、3为单体1右侧不断生成的新单体)

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图 4 CINRAD/SA多是时次、不同仰角反射率合成图

（自左至右按时间顺序排列，从下至上仰角分别为0.5°、1.5°、2.4°、3.4°、4.3°、6.0°）

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图 5 最大反射率和最大垂直积分液态含水量 (VIL) 值在冰雹云发展过程中的变化

(图中细实线为最大VIL值 (kg·m^-2), 粗虚线为最大反射率值, 细虚线为资料中断时段, 粗实线为冰雹实况记录时段)

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图 6 7:50反射率垂直剖面RCS产品

图（a）和0.5°反射率产品图（b）(RCS产品剖面位置为图（b）中A-B，方向接近平行于风暴移动方向)

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图 7 中气旋生成阶段风暴相对径向速度（SRM）产品

（6:31在1.5°仰角上出现正负速度对，之后正负速度不断向上发展，旋转速度不断增大，6:55在3.4°仰角上出现发展对称的中气旋）

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图 8 6:55不同仰角的SRM产品PPI图

（自下至上的仰角分别为1.5°、2.4°、3.4°、4.3°、6.0°）

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表 1 改变冰雹指数算法适配参数回放实验结果

表 2 2002年9月27日山东东阿冰雹风暴CINRAD/ SA生成的中尺度气旋产品特性表

References

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[8]	刘式达, 辛国君.大气中尺度气旋的三维螺旋结构理论.气象学报, 2000, 58(2):151-158. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB200002002.htm