Correction to “Recent and dramatic changes in Pacific storm trajectories as recorded in the δ 18 O of Bristlecone Pine tree ring cellulose”

[1] In the paper “Recent and dramatic changes in Pacific storm trajectories recorded in dO from Bristlecone Pine tree ring cellulose” by M. B. Berkelhammer and L. D. Stott (Geochemistry, Geophysics, Geosystems, 9, Q04008, doi:10.1029/ 2007GC001803, 2008) we reported a 10‰ drop in mean cellulosic dO at the transition between the 19th and 20th centuries from two trees located in Methuselah Grove in the White Mountains of California. Using a simple process model to account for influences of temperature, humidity, and changes in dO of the source water the trees were utilizing for photosynthesis, the authors concluded that a change in the source waters had occurred at the tree site due to a shift in synoptic circulation patterns between the mid‐ 19th and early 20th centuries. A study by Bale et al. [2010] presented additional oxygen isotopic data from cellulose of Bristlecone Pine trees growing near the site of B08 and from a separate, higher‐altitude grove (Blanco Mountain) in the White Mountains. Bale et al. [2010] also document a reduction in cellulose dO near the turn of the 20th century, but the magnitude of this change is considerably smaller than that reported in our original paper. The mean dO values of cellulose through the 20th century also differed significantly between these two studies.