An Overview of the Northeast China Cold Vortex and Short-Term Climate Forecast

The Northeast China cold vortex (NECV) is an important synoptic system in the Eastern Asia. It plays a very important role on the climate anomaly over the Northeast China, North China, even the Changjiang-Huaihe region and south of the region in late spring and early summer. Since 1970s, the research of NECV has been focused on weather structure, mesoscale features and the physical process of rainstorm and so on. Now the attentions turn to its activity automatic monitoring by computer, climatic characteristics, frequency impacting on the region summer low temperature and the predictable signals. In the future, we should pay more attentions on the synoptic and climatic scale diagnosis, abstracting its predictable signals from high correlations and physical processes, and on combination of diagnosis and numerical prediction. In all, it is helpful to improve the prediction of NECV by merging the multiple spatial and temporal scales.