Supplementary data file for McCulloch, GRL comment on Thompson et al (PNAS 2006). TCZ Tropical Composite dO18 Z-score index HCZ Himalayan Composite dO18 Z-score index ACZ Andean Composite dO18 Z-score index G Guliya dO18 (o/oo) P Puruogangri Du Dunde Da Dasuopu Q Quelccaya H Huascaran S Sajama . indicates missing value Bottom Year TCZ HCZ ACZ G P Du Da Q H S 1600 -0.43 0.13 -0.99 -13.260 -14.675 . -20.775 -18.755 -19.590 -16.210 1610 -0.22 -0.50 0.06 -13.180 -14.720 -11.010 -21.295 -18.455 -18.860 -14.550 1620 -0.98 -0.13 -1.83 -13.970 -15.730 -10.485 -20.845 -18.845 -19.385 -20.475 1630 -0.15 0.39 -0.69 -13.865 -14.370 -10.285 -20.035 -18.030 -19.290 -17.665 1640 -0.50 0.16 -1.17 -14.195 -13.795 -10.390 -19.950 -18.470 -19.265 -17.575 1650 -0.43 0.01 -0.88 -15.605 -14.090 -10.750 -20.725 -17.720 -19.190 -18.165 1660 -0.58 -0.09 -1.08 -15.620 -15.075 -10.765 -20.625 -19.315 -19.130 -16.560 1670 -0.54 0.03 -1.11 -13.705 -14.610 -11.680 -19.280 -19.145 -18.970 -16.605 1680 -0.30 0.28 -0.88 -14.735 -15.055 -10.945 -19.585 -18.750 -19.050 -17.650 1690 -0.05 0.59 -0.70 -13.940 -15.040 -11.600 -19.425 -18.860 -18.755 -16.760 1700 -0.23 0.54 -1.00 -11.960 -14.175 -11.350 -19.930 -19.075 -18.155 -18.450 1710 -0.51 0.32 -1.33 -13.870 -14.745 -11.390 -20.680 -18.450 -19.565 -18.360 1720 -0.40 0.23 -1.03 -14.920 -15.135 -10.645 -19.765 -17.705 -20.070 -17.205 1730 -0.89 -0.13 -1.64 -13.890 -15.360 -11.045 -21.990 -19.390 -19.310 -18.525 1740 -0.21 0.12 -0.54 -14.010 -15.470 -10.525 -19.295 -18.465 -18.110 -18.255 1750 -0.32 0.13 -0.77 -13.515 -15.520 -10.095 -19.630 -19.400 -18.390 -16.590 1760 -0.17 -0.17 -0.18 -12.705 -14.850 -10.600 -21.085 -18.685 -17.235 -18.215 1770 -0.54 -0.34 -0.74 -14.005 -14.895 -11.255 -21.040 -18.770 -18.445 -17.250 1780 0.10 -0.27 0.46 -13.005 -14.300 -10.500 -21.520 -18.555 -16.730 -16.890 1790 0.85 0.46 1.24 -13.365 -14.855 -11.190 -18.670 -18.250 -16.390 -15.130 1800 0.04 -0.16 0.23 -14.385 -15.290 -10.870 -19.625 -18.280 -17.120 -17.450 1810 -0.74 -0.19 -1.29 -15.105 -16.325 -10.685 -20.670 -19.745 -18.330 -18.710 1820 0.14 0.24 0.03 -15.230 -15.180 -10.825 -19.355 -18.220 -16.635 -19.980 1830 0.40 0.16 0.64 -15.605 -13.800 -10.835 -19.975 -18.110 -17.275 -16.040 1840 0.24 0.12 0.36 -15.060 -15.470 -10.880 -19.715 -17.845 -17.965 -16.355 1850 0.28 0.54 0.02 -12.925 -14.890 -11.415 -18.980 -18.225 -17.820 -17.060 1860 0.12 0.40 -0.17 -15.480 -14.580 -11.040 -20.200 -18.440 -17.530 -17.825 1870 0.10 0.32 -0.12 -15.705 -13.570 -10.530 -18.645 -18.820 -16.555 -19.385 1880 0.91 1.13 0.68 -14.320 -14.855 -10.245 -18.645 -17.920 -17.070 -16.955 1890 -0.36 0.24 -0.95 -14.345 -15.575 -10.290 -20.235 -18.420 -18.995 -18.100 1900 0.52 0.25 0.78 -15.920 -16.000 -10.360 -18.585 -17.370 -17.790 -16.245 1910 0.34 0.74 -0.06 -14.165 -14.295 -10.915 -19.780 -17.890 -18.075 -17.820 1920 0.92 1.47 0.37 -15.900 -12.530 -10.515 -19.015 -17.715 -17.275 -17.900 1930 1.10 1.40 0.80 -14.980 -13.930 -10.595 -18.405 -16.980 -16.980 -16.980 1940 1.51 1.74 1.28 -14.245 -14.595 -10.010 -17.140 -16.870 -17.130 -16.475 1950 0.96 1.43 0.49 -13.865 -13.875 -8.950 -17.910 -17.700 -17.840 -15.745 1960 1.54 1.34 1.74 -13.860 -13.740 -9.870 -17.970 -16.735 -16.445 -16.365 1970 0.26 1.17 -0.64 -12.990 -13.765 -9.825 -17.670 -18.535 -18.170 -18.835 1980 1.12 1.56 0.68 -13.310 -12.945 . -18.575 -17.155 -17.330 -17.805 1990 1.74 2.09 1.39 . -13.685 . . -16.395 . .