京津冀冬季冷空气过程的低频特征及西伯利亚高压低频变化的影响
马宁, 何丽烨, 梁苏洁, 郭军

Low-frequency characteristics of winter-time cold air activity in the Beijing-Tianjin-Hebei region and the impacts of low-frequency variation of the Siberian High
MA Ning, HE Liye, LIANG Sujie, GUO Jun
图4 京津冀冬季低频气温位相划分示意图及冷空气过程位相分布
Fig. 4 Schematic diagram of 8 phases in a period of low-frequency temperature oscillation in winter anddistribution of cold air activity for the 8 phases in the BTH region