Prominent renewal of weddell Sea Deep Water from a remote source

摘要

Three transient tracer sections of CFC-11 across the Weddell Sea are presented, collected during "Polarstern" cruises ANT X/4 (July 1992), ANT XIII/4 (May 1996) and ANT XV/4 (April 1998). The corresponding sections of silicate, a quasi-steady-state tracer, are displayed for comparison and As a supplement. Two distinct CFC-11 maximum layers are found in the deep water, one centered Near 2200 m and another near 3500 m.