Observed Change in Sahel Rainfall, Circulations, African Easterly Waves, and Atlantic Hurricanes Since 1979
Figure 10
Horizontal maps of linear trends of (a) the potential function (; contours + shadings) and (b) the stream function (; shadings) of the column-integrated water vapor flux , superimposed with the divergent and rotational components of the water vapor flux (vectors). Tropical cyclogeneses during the 1979–1995 and 1996–2010 periods are overlaid as blue dots and red dots, respectively.
