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中文摘要: 通过分析沂蒙山区东北部4县市冰雹天气特征，归纳出造成该区域冰雹天气的4种主要天气形势和5条主要冰雹路径以及雹灾多发时段为5～6月份。据此分型建立了5～6月份短期预报方程，依据雷达探测数据建立了雹云和雷雨云的短时判别指标。
中文关键词: 沂蒙山区，冰雹，判别指标
Abstract:The characteristics of the hail weather over four cities at the northeast of Yimeng mountain in Shandong province were analysed. 4 major weather conditions of hail occurrence and 5 major hail cloud moving trace were presented. The result showed when the hail weather occured was most frequent in May and June. Therefore,a serial of short range forecast equations for May and June were established,and a short range criteria for distinguishing hail cloud and thunder rain cloud was suggested by using radar sounding.
keywords: Yimeng mountain,hail,critria index
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引用文本：
刘龙章,1998.沂蒙山区东北部冰雹特征及预报[J].气象,24(8):37-41.
,1998.The Characteristics of the Hail Cloud over the Northeast of Yimeng Mountain in Shandong Province and Its Forecast Test[J].Meteor Mon,24(8):37-41.
刘龙章,1998.沂蒙山区东北部冰雹特征及预报[J].气象,24(8):37-41.
,1998.The Characteristics of the Hail Cloud over the Northeast of Yimeng Mountain in Shandong Province and Its Forecast Test[J].Meteor Mon,24(8):37-41.