Atmospheric Low-Frequency Oscillation and Extended Range Forecast

作者：Sun Guowu · 发表于：Gaoyuan qixiang · 年份：2010 · 被引用次数：4 · 研究领域：Environmental and Agricultural Sciences、Evaluation Methods in Various Fields、Remote Sensing and Land Use

To study extended range forecast from the view of atmospheric low-frequency,a new approach using the forecasting method of low-frequency synoptic chart(LFSC) is introduced recently.And the main points for LFSC technique methods of LFSC are analyzed.The low-frequency weather systems(low-frequency cyclones and anticyclones) on LFSC and its action characteristic can be used to determine qualitatively the confluence between the south and north air current(warm and cool air),and cause precipitation processes.Using LFSC method,it shows that the forecast results are good in Shanghai area from June to October 2009 and its forecast validity period is 15～45 days.So the LFSC method can be applied in extended range forecast.