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ECMWF细网格模式在阿勒泰地区短时强降水环境场预报中的统计检验 被引量:3
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作者 李博渊 赵江伟 李健丽 《陕西气象》 2020年第1期8-13,共6页
利用ECMWF细网格模式产品对阿勒泰地区2013-2018年5-9月36场短时强降水过程的环境场预报性能进行统计学检验。结果表明:48 h预报时效内模式对海平面气压场、2 m温度场和露点温度场、10 m风场,500 hPa高度场、850 hPa温度场和比湿场及对... 利用ECMWF细网格模式产品对阿勒泰地区2013-2018年5-9月36场短时强降水过程的环境场预报性能进行统计学检验。结果表明:48 h预报时效内模式对海平面气压场、2 m温度场和露点温度场、10 m风场,500 hPa高度场、850 hPa温度场和比湿场及对流层风场预报误差较小,精度较高,在预报业务中为首选物理量;对700 hPa相对湿度场和垂直速度场预报误差较大,且以随机误差为主,在预报业务中注意订正运用。 展开更多
关键词 EC细网格模式 短时强降水 环境场预报 统计检验
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THE OBJE CTIVE ANALOGUE PREDICTION MODEL FOR TROPICAL CYCLONE TRACK WITH COMPREHENSIVE ASSESSMENT OF THE ENVIRONMENT
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作者 钟元 《Journal of Tropical Meteorology》 SCIE 2002年第2期207-217,共11页
An objective analogue prediction model for tropical cyclone (TC) track is put forward that comprehensively assesses the environmental field. With the parameters of the tropical cyclone and environmental field at initi... An objective analogue prediction model for tropical cyclone (TC) track is put forward that comprehensively assesses the environmental field. With the parameters of the tropical cyclone and environmental field at initial and future time, objective analogue criteria are set up in the model. Analogous samples are recognized by comprehensive assessment to historical TC cases for similarity with multivariate criteria,using non-linear analogue indexes especially defined for the purpose. When the historical tracks are coordinateconverted and weighted with reference to analogue indexes,forecast tracks are determined. As shown in model verification and forecast experiments, the model has forecasting skill. 展开更多
关键词 environmental field tropical cyclones analogue forecasts
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