1961—2017年京津冀地区寒潮活动特征
李红英, 林纾, 王云鹏, 黄鹏程, 于亚楠

Characteristics of cold wave activities in Beijing-Tianjin-Hebei region from 1961 to 2017
LI Hongying, LIN Shu, WANG Yunpeng, HUANG Pengcheng, YU Yanan
图3 1961—2017年京津冀地区寒潮累计发生站次年际变化及其线性趋势
Fig.3 Inter-annual variation of accumulative occurrence stations of cold wave in BTH region from 1961 to 2017 and its linear trend