This study investigates the large-scale circulation anomalies of strong and weak cold surges in southern China. Results show that the strong and weak surges are associated with a distinct Rossby wave train across Eurasia projecting onto the Scandinavia (SCAND) and Eurasian (EU) patterns. On one hand. the strong surge is preceded by a positive SCAND pattern and a transition of the EU p... https://www.themightyhobbyers.shop/product-category/pop-super/