青藏高原东北侧局地冰雹最大雹径识别方法  

The Discriminating Method of the Maximal Hail Diameter on the Northeast Tibetan Plateau

作　　者：刘治国[1] 王鹏祥[1] 杨建才[1] 毛玉琴 梁海河[3] 冀兰芝[1] 

机构地区：[1]兰州中心气象台 [2]甘肃省山丹县气象局,甘肃山丹734100 [3]中国气象局大气探测技术中心,北京100081

出　　处：《灾害学》2007年第4期15-20,共6页Journal of Catastrophology

基　　金：中国气象局项目(CMATG2007Z08);国家自然科学基金(40475011);甘肃省气象局项目(2006RA-3)(2007-18)

摘　　要：以3D-Barnes方案插值的新一代天气雷达反射率因子等高平面资料，用垂直累积液态含水量的理论模式计算雹云单体在降雹过程中的VIL，再用MAX函数逐个提取最大VIL（简称：VILmax），采用统计和回归处理技术，对2004～2006年5～8月青藏高原东北侧局地雹云单体的VILmax与对应地面冰雹最大雹径（简称：Rmax）之间的关系进行详细分析。结果表明，青藏高原东北侦4局地冰雹Rmax与对应单体VILmax之间存在明显的正相关关系。Based on constant altitude plan data, like reflectivity factor of China new generation weather radar which is interpolated with 3D-Barnes scheme, VIL （Vertically Integrated Liquid Water Content, shortened form： VIL） during hailing process of hailstone cell is calculated with its theoretical model, and the maximum of VIL （shortened form： VILmax） is identified by use of MAX function. With methods of statistic and regression equation, the relation of VILmax of hailstone cell with the maximal hail diameter of local hail on ground in the northeast Tibetan plateau from May to August of 2004 - 2006 is analyzed in detail. Results show that there is apparent direct correlativity of VILmax of hailstone cell with the maximal hail diameter on ground in the northeast Tibetan plateau.

关 键 词：雹云单体 垂直累积液态含水量 雹径识别 青藏高原东北侧 

分 类 号：P426.64[天文地球—大气科学及气象学]