A or a: depth of PGIW salinity maximum for northeast or southwest 

 monsoon, respectively 



B or b: depth of SSW salinity minimum 



C or c: depth of upper RSIW salinity maximum (upper lobe) 



C or c': depth of lower RSIW salinity maximum (lower lobe after 

 interfingering with AAIW and/or BIW) 



C" or c": depth of NIDW salinity maximum (generally below BIW salinity 

 minimum) 



D or d: depth of AAIW salinity minimum 



E or e: depth of BIW salinity minimum 



A/C or a/c; depth of salinity maximum caused by mixing of PGIW and RSIW 



B/D or b/d: depth of salinity minimum caused by mixing of SSW and AAIW 



D/E or d/e; depth of salinity minimum caused by mixing of AAIW and BIW. 



The "B" or "b" notations above are used only In the presence of RSIW. 



TREATMENT OF DATA 



All sound velocity profiles (Figures B-3 through B-38) were derived 

 according to the equation of Wilson, 1960. All T-S profiles were drawn from 

 either Hansen cast or salinity-temperature-depth recorder (STD) observations. 

 Sound velocity and T-S profiles for any given season and location represent 

 the same single observation in all cases. No averaging processes were used 

 in the construction of the profiles. Although the given profiles are not typical 

 of any large region, they show general trends encountered throughout the area. 



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