2021年京津冀秋季降水10~20 d低频振荡特征

韩世茹, 车少静, 于长文, 马贵东

Characteristics of 10-20 days low-frequency oscillation of autumn precipitation over the Beijing-Tianjin-Hebei region in 2021

HAN Shiru, CHE Shaojing, YU Changwen, MA Guidong

图5 不同位相500 hPa位势高度异常（等值线，单位：dagpm）和散度异常（阴影，单位：10-6s-1）分布 （“H”表示高压，“L”表示低压；方框为京津冀地区所在位置，下同）

Fig.5 The distribution of geopotential height field anomaly (contours, Unit: dagpm) and divergency anomaly (the shaded, Unit: 10-6s-1) at 500 hPa in different phases (The “H” is for high pressure, and the “L” is for low pressure, the box shows the location of the Beijing-Tianjin-Hebei region, the same as below)