Research Article
A New Dynamical Index for India-Burma Trough
Figure 1
(a) The geopotential height (unit: gpm) and wind (unit: m s−1), (b) the divergence field (contour interval: s−1), (c) vorticity (interval: s−1), and (d) vertical velocity (interval: 0.05 Pa s−1) over 700 hPa in winter half year (from December to the next May) from 1978/1979 to 2011/2012 (written as 1979–2012). The violet area is the TP, and red line denotes trough axis (same for the following context).
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