2020年7月黑龙江极端少雨成因初探 |
娄德君, 李永生, 王永光, 陈晨, 张健 |
Preliminary study on the causes of extremely less precipitation in Heilongjiang Province in July 2020 |
LOU Dejun, LI Yongsheng, WANG Yongguang, CHEN Chen, ZHANG Jian |
图6 7月JPI负异常年合成的波作用通量(矢量,单位:m2·s-2)和500 hPa位势高度距平(等值线,单位:gpm) (深、浅灰色区分别为通过α=0.01、0.05显著性检验的500 hPa位势高度距平) |
Fig.6 Composite wave activity flux (vectors, Unit: m2·s-2) and 500 hPa geopotiential height anomaly(contours, Unit: gpm) in negative anomalous years of July JPI (Dark and light grey areas indicate the 500 hPa geopotiential height anomaly passing the significance tests at 0.01 and 0.05 level, respectively) |
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