Recent and Expected Future Changes in the Hydrography, Ecology, and Circulation
299
F 12 [pmol/kg
1987
Dislanc IkmJ
1
tt ~ ,a ," 'tI
'91995
400
eoo
1200
1600
1999
Fig. 2. Sections as in Fig. I for the transient tracer CFC-12 (pmollkg); the 1987 sections did not cover
the full zonal range. Near-surface and newly formed deep waters are characterized by higher
concentrations