Water may be detected as a salinity maximum vithin the Central 

 Water Mass column. This is commonly called the Red Sea influence 

 and is quite pronounced along the coast of Africa north of the 

 Mozambique Channel. 



The delineation of water mass boundaries as presented in 

 Figure 20 represents in broad outline the extent of the subsurface 

 vaters. As more data from the International Indian Ocean Expedition 

 is processed and made available, it will be possible to confirm 

 these boundaries in greater detail. 



71 



