Footnote p

^pData from M. Rhein. See Rhein et al. 2004.

Rhein, M. M. Walter, C. Mertens, R. Steinfeldt, and D. Kieke. 2004. The circulation of North Atlantic Deep Water at 16°N, 2000-2003, Geophys. Res. Lett. 31, L14305, doi:10.1029/2004GL019993.