Footnotes

^aaData from M. Rhein/R. Steinfeldt. See Kieke et al. 2006

Kieke, D., M. Rhein, L. Stramma, W. M. Smethie, D. A. LeBel, and W. Zenk. 2006. Changes in the CFC inventories and formation rates of Upper Labrador Sea Water, 1997-2001. J. Phys. Oceanogr, 36:64-86.