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气象:2007,33(1):94-98
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甘肃省秋季飞机人工增雨天气系统分型
(1.中国气象局兰州干旱气象研究所, 兰州 730020;2.甘肃省庆阳市气象局;3.甘肃省人工影响天气办公室)
Weather System Types of Aircraft Artificial Precipitation Enhancement in Autumn in Gansu Province
(1.Institute of Arid Meteorology, Lanzhou 730020;2.Qingyang Meteorological Bureau;3.Gansu Weather Modification Office)
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投稿时间:2005-11-22    修订日期:2006-06-12
中文摘要: 为了探讨甘肃秋季人工增雨天气系统的影响特征,利用甘肃省1991—2002年飞机人工增 雨作业资料,对秋季飞机人工增雨作业情况进行了统计分析;按照甘肃省秋季天气系统特征 ,利用探空资料,建立了甘肃省秋季天气系统自动化“判别模型”,得出甘肃秋季降水的高 空环流可分为三种类型:平直多波动型、西南气流型和西北气流型,其中降水类型以平直多 波动型为主。通过“判别模型”对飞机人工增雨天气系统的分型,结果表明飞机人工增雨作 业的主要天气类型为西南气流型和平直多波动型。可为人工增雨作业区域选择和航线设计提 供天气气候背景。
Abstract:To investigate features of the autumn weather system over Gansu Provin ce in airplane artificial precipitation enhancement, statistical analysis was co nducted, based on the data of airplane artificial precipitation enhancement ope rations from 1991 to 2002. Meanwhile, discriminant model of the autumn weather s ystem of Gansu was established by utilizing the information of sounding data and the autumn weather system features. The results show that upper air circulation of the autumn precipitation in Gansu can be divided into three categories i.e. straight and fluctuant flow pattern, southwest flow pattern and northwest flow p attern. Among those patterns, the straight and fluctuant flow pattern occurred m ore frequently than other two patterns.
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基金项目:国家科技攻关重大项目“西部开发科技行动”之“祁连山空中云水资源开发利用研究”子专 题“云物理特征数值模拟及催化效果的模拟检验”(2004BA901A16 02 02)
引用文本:
王琎,李宗龑,王劲松,沈治广,李宝梓,2007.甘肃省秋季飞机人工增雨天气系统分型[J].气象,33(1):94-98.
Wang Jin,Li Zongyan,Wang Jinsong,Shen Zhiguang,Li Baozi,2007.Weather System Types of Aircraft Artificial Precipitation Enhancement in Autumn in Gansu Province[J].Meteor Mon,33(1):94-98.