Figure 8

Annual and seasonal variations of zonal wind speed (u) and meridional wind speed (v) at 500 hPa during entire period (P, 1960–2015), P1(1960–1975), P2(1976–2006) and P3(2007–2015). The linear trends (m/s per year) are given in the legend of the figure panels. Values in italic and bold and in bold represent the correlation coefficient were statistically significant at 0.01 and 0.05 confidence level, respectively.