西北地区东部春夏季旱涝转换环流特征及其与大西洋海温的关系
张雯, 马阳, 王素艳, 王岱, 李欣

Circulation characteristics of drought-flood transition from spring to summer over the east region of Northwest China and its relationship with Atlantic sea surface temperature
ZHANG Wen, MA Yang, WANG Suyan, WANG Dai, LI Xin
图2 西北地区东部旱转涝(a、b)、涝转旱(c、d)年100 hPa春季(a、c)位势高度距平合成(填色区)及夏季(b、d)位势高度场(等值线)(单位:gpm)
(打点区域为位势高度异常通过95%置信水平的显著性检验,黑色虚线为南亚高压东脊点)
Fig.2 Composites of 100 hPa geopotential height anomalies in spring (the color shaded)(a, c) and 100 hPa geopotential height fields in summer (contours)(b, d) in drought-to-flood (a, b) and flood-to-drought (c, d) years (Unit: gpm)
(the dotted for geopotential height anomalies passing the significance test at the 95% confidence level, the black dash line for the east ridge of South Asia high)