Figure F5. Cross section of subsurface water masses in a transect through the drilling sites, characterized by (A) dissolved oxygen (mM), (B) dissolved phosphate (µM), and (C) salinity. AAIW = Antarctic Intermediate Water, NPIW = North Pacific Intermediate Water, PCW = Pacific Central Water, GU = Gunther Undercurrent, CPDW = Circumpolar Deep Water.