秋季巴伦支海海冰与中国京津冀地区2月气温变化的联系

张国宏

Relationship between autumn sea ice in the Barents Sea and change of temperature in February in Beijing-Tianjin-Hebei region of China

ZHANG Guohong

图5 Feb4-20中国京津冀地区气温PC1与海平面气压场(等值线)、风场[通过α=0.10及以上显著性检验的箭头(下同)](a)和500 hPa高度场(c)的相关系数(a、c)以及秋季巴伦支海关键区Iicec回归的Feb4-20海平面气压场(等值线,单位:hPa)、风场(箭头,单位:m·s-1)(b)和500 hPa高度场(d,单位:dagpm)距平(b、d) (红色方框为西伯利亚高压关键区,填色区由浅至深分别通过α=0.10、0.05、0.01的显著性检验)

Fig.5 Correlation coefficient (a, c) between PC1 of temperature in Beijing-Tianjin-Hebei region and sea level pressure field (contours), wind field (arrows with the significance tests of 0.10 level and above (the same as below)) from 4 to 20 February (a) and 500 hPa geopotential height field (c), and anomaly field (b, d) of sea level pressure field (contours, Unit: hPa), wind field (arrows, Unit: m·s-1) (b) and 500 hPa geopotential height field (d, Unit: dagpm) from 4 to 20 February regressed by Iicec in the key areas of the Barents Sea in autumn (The red box is the key area of the Siberian high; the colour shaded areas from shallow to deep passed the significance tests at 0.10, 0.05 and 0.01 level, respectively)