McCabe-Glynn, S., Johnson, K. R., Strong, C., Berkelhammer, M., Sinha, A., Cheng, H. and Edwards, R. L.: Variable North Pacific influence on drought in southwestern North America since AD 854, Nature Geoscience, 6(8), 617–621, doi:10.1038/ngeo1862, 2013.

d18O (SP13MCUS01A): interpretation3_scope: '' has been replaced by 'isotope'
d18O (SP13MCUS01A): interpretation4_scope: '' has been replaced by 'isotope'

Thermo-Finnigan MAT253 Isotope Ratio Mass Spectrometer (IRMS) or a Thermo-Finnigan Delta V Plus IRMS, with a Kiel IV Carbonate Device both at the Analytical Laboratory for Paleoclimate Studies (ALPS) at the Jackson School of Geosciences, University of Texas at Austin

XRD - shows only calcite peaks and no aragonite peaks

repeat measurements of a carbonate standard has a long-term analytical precision of 0.12?, 2?

Samples pass the Hendy Test. Low correlation between d18O and d13C across a layer. Also d18O replicates between stalagmites, but d13C doesnt. Top of stalagmite is similar to predicted value using dripwater d18O and cave temp

AX: check if age model exists. Note: Speleo age model? It should, as it has ages!

Regression between rainfall amount and stalagmite d18O. "We choose to use 10- year decadal means to compare mean stalagmite ?18O and rainfall amount between wet and dry periods (i.e. different PDV phases) (Figure S8). Dating errors preclude us from using a regression between stalagmite ?18O and rainfall amount yearly data during the instrumental era. The slope of the regression yields a conversion of 1? stalagmite ?18O per 1.4 m/wet season (R2 = 0.74); an inverse correlation known as the ?Amount Effect? (Dansgaard, 1964; Rozanski et al., 1993)."

0.72 per mil of d18O change per 1 m of rainfall per wet season

Partin, J. W., Quinn, T. M., Shen, C.-C., Emile-Geay, J., Taylor, F. W., Maupin, C. R., Lin, K., Jackson, C. S., Banner, J. L., Sinclair, D. J. and Huh, C.-A.: Multidecadal rainfall variability in South Pacific Convergence Zone as revealed by stalagmite geochemistry, Geology, 41(11), 1143–1146, doi:10.1130/g34718.1, 2013.