In this project the principal investigator will measure and interpret distributions of chlorofluorocarbons (CFC's or Freons), F-11 and F-12, in the Pacific Ocean on hydrographic sections along 179|E and 149|E, designated by the World Ocean Circulation Experiment (WOCE) as P-14N and P-10, respectively. A principal focus would be on the ventilation and circulation of North Pacific Intermediate Water and Subtropical Mode Water. Also to be addressed are inter-gyre exchange and cross-equatorial exchange. CFC measurements have not been made in these regions before, and are integral to WOCE Hydrographic planning.
