Auxiliary material for Paper 2011GL046735 A reduced estimate of the strength of the ocean's biological carbon pump Stephanie A. Henson and Richard Sanders National Oceanography Centre, Southampton, UK Esben Madsen School of Applied Sciences, Cranfield University, Cranfield, UK Paul J. Morris Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA Frederic Le Moigne and Graham D. Quartly National Oceanography Centre, Southampton, UK Henson, S. A., R. Sanders, E. Madsen, P. J. Morris, F. Le Moigne, and G. D. Quartly (2011), A reduced estimate of the strength of the ocean’s biological carbon pump, Geophys. Res. Lett., 38, L04606, doi:10.1029/2011GL046735. Introduction This auxiliary material contains a text file. 1. 2011gl046735-txts01.pdf Text S1. Details on the 234Th data compiled from the literature and used in this study.