Abstract
The volume, mean depth of occurence, mean oxygen content, and mean silicate concentration of Weddell Sea water in bivariate classes determined by potential temperature and salinity have been determined from 65 hydrographic stations occupied during the southern summer. The waters of the continental shelf domain (234 × 10 3 km 3) and of the deep oceanic domain (6880 × 10 3km 3) were considered separately. Several water masses stand out either as modes (Antarctic Bottom Water, Shelf Water and Winter Water) or cores (Warm Deep Water, Ice Shelf Water). The volumetric distributions support earlier proposals that bottom water is probably formed in the south-western Weddell Sea by the mixing of cold Shelf Water and Warm Deep Water.
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