| 新一代天气雷达在河西走廊强对流天气预报中的应用 |
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| 引用本文： | 曹玲,窦永祥,杨晓玲,牛金龙.新一代天气雷达在河西走廊强对流天气预报中的应用[J].甘肃气象,2007,25(4):30-35. |
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| 作者姓名： | 曹玲 窦永祥 杨晓玲 牛金龙 |
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| 作者单位： | 甘肃省张掖市气象局 甘肃张掖734000(曹玲，窦永祥，牛金龙)，甘肃省武威市气象局 甘肃武威733000(杨晓玲) |
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| 基金项目： | 甘肃省气象局2007年重点项目“数值预报释用技术在河西常规要素精细化和灾害性天气落区预报中的应用”资助 |
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| 摘 要： | 通过对2006年张掖地区强对流天气的多普勒雷达资料分析,总结了本地强对流天气的雷达带状、块状强度回波特征;分析了强对流天气的中尺度系统中低空急流、暖平流、冷平流、逆风区、垂直风切变的雷达回波特征,将回波进行客观定量化,并引进了稳定度指标,得出具有可操作性的短时预报简明判据。
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| 关 键 词： | 强对流天气 雷达回波 短时预报 |
| 文章编号： | 1006-7639(2007)-04-0030-06 |
| 修稿时间： | 2007年5月20日 |
Aplication of New Generation Weather Radar Data in Short-term Forecast of Strong Convective Weather |
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| CAO ling,DOU Yongxiang,YANG Xiaoling,NIU Jinglong.Aplication of New Generation Weather Radar Data in Short-term Forecast of Strong Convective Weather[J].Gansu Meteorology,2007,25(4):30-35. |
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| Authors: | CAO ling DOU Yongxiang YANG Xiaoling NIU Jinglong |
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| Abstract: | By analyzing the doppler radar data of the strong convective weather processes occurred in Zhangye city in 2006,the intensity characteristics of belt-shaped and block echoes are summarized.Radar echo characteristics of mesoscale system of strong convective weather processes,including low-jet,warm advection,cold advection,contrary wind area and vertical wind shear,are analyzed.The echo features are quantified objectively,and the stability index is introduced.The concise criterion for feasibility short-time forecast is obtained. |
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| Keywords: | strong convective weather radar echo short-term forecast |
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