Circulation classification of persistent low-temperature snowfall events in Henan Province and characteristics of upper- and lower-level circulation configurations based on K-means clustering
WU Lu, LIAO Zhen, DONG Zhenhua, ZHU Leilei, YANG Ting, SU Xiaole
Journal of Glaciology and Geocryology . 2026, (3): 738 -752 .  DOI: 10.7522/j.issn.1000-0240.2026.0055