畜牧与饲料科学
畜牧與飼料科學
축목여사료과학
ANIMAL HUSBANDRY AND FEED SCIENCE
2011年
8期
72-73
,共2页
久旱转雨%河套倒槽%数值释用
久旱轉雨%河套倒槽%數值釋用
구한전우%하투도조%수치석용
drouth turning to rain%inverted trough of Hetao%explanation and application with numerical products
利用常规观测资料、卫星云图、雷达回波等资料,对2009年4月18—21日内蒙古通辽市一次久旱转雨过程进行成因分析。结果表明,有利的大尺度环流、充足的水汽条件和较强的上升运动,同时低层有冷空气入侵激发该次降水的产生。降水是由于高空槽东移加强形成低涡、地面配合倒槽产生的。新一代天气雷达资料分析表明,回波具有明显的、典型的普雨降水系统特征。数值预报产品对这次过程的预报效果较好,深入数值预报产品的使用研究是提高重大天气预报质量的有效途径。
利用常規觀測資料、衛星雲圖、雷達迴波等資料,對2009年4月18—21日內矇古通遼市一次久旱轉雨過程進行成因分析。結果錶明,有利的大呎度環流、充足的水汽條件和較彊的上升運動,同時低層有冷空氣入侵激髮該次降水的產生。降水是由于高空槽東移加彊形成低渦、地麵配閤倒槽產生的。新一代天氣雷達資料分析錶明,迴波具有明顯的、典型的普雨降水繫統特徵。數值預報產品對這次過程的預報效果較好,深入數值預報產品的使用研究是提高重大天氣預報質量的有效途徑。
이용상규관측자료、위성운도、뢰체회파등자료,대2009년4월18—21일내몽고통료시일차구한전우과정진행성인분석。결과표명,유리적대척도배류、충족적수기조건화교강적상승운동,동시저층유랭공기입침격발해차강수적산생。강수시유우고공조동이가강형성저와、지면배합도조산생적。신일대천기뢰체자료분석표명,회파구유명현적、전형적보우강수계통특정。수치예보산품대저차과정적예보효과교호,심입수치예보산품적사용연구시제고중대천기예보질량적유효도경。
Based on the conventional observation data,satellite cloud images and radar echo data,the causes of a weather process of drouth turning to rain in Tongliao City of Inner Mongolia during April 18th～21st of 2009 were analyzed.The results showed that the advantageous large-scale circulation,ample vapor conditions,stronger ascending motion and cold air intrusion in low layers caused the occurrence of this rainfall.The eastward shift of upper trough reinforced to form the low vortex and inverted trough appeared on the ground,which led to the precipitation.The data analysis of new-generation weather radar showed that the echoes had obvious and typical characteristics of general rainfall.The forecast effects of using numerical forecast products on this process were better.Further application and research of numerical forecast products was an effective way to enhance the forecast quality of great weather processes.
