NORTH-SOUTH TRANSECT OVER AFRICA 
404 
Figure 5 : Variation of the backscattering coefficient along a North-South transect in Africa for may 1992 (—) 
and September 1992 (•••)• 
NORIH SOU IH TRANSECT OVER AFRICA (October 1992) 
Figure 6 : Variation of the backscattering coefficient and the GVI along a North-South transect in Africa for 
October 1992