APPLICATION OF ATMOSPHERIC INTRASEASONAL OSCILLATION IN PRECIPITATION FORECAST OVER SOUTH CHINA
LIN Ai-lan
JI Zhong-ping
GU De-jun
LI Chun-hui
ZHENG Bin
HE Chao
Abstract：Atmospheric intraseasonal oscillation (ISO) plays important roles in the evolution of weather and climate.ISO is one of the predictability sources for medium-and extended-range forecast.Moreover,there exists close relationship between ISO and seasonal rainfall in interannual time scale.In this review,the study on the interannual variation of ISO is first introduced briefly,and the impact of ISO on the precipitation over South China and its application in operational forecast is addressed.We focus especially on the impact of MJO on the precipitation over South China,forecast of torrential rain in rainy seasons based on quasi biweekly oscillation,impact of multiple scales interaction between tropical ISO and weather systems outside tropics on severe rain,contribution of ISO to the seasonal precipitation,quantitative precipitation forecasting model for extended-range.Finally,some thinking about further ISO application and research is proposed.
Keywords：atmospheric intraseasonal oscillationMJOquasi biweekly oscillationprecipitation over South Chinatorrential rain
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 878-889 )