% Antarctica 2K 2017 isotope anomalies (relative to 1960-1990 reference interval) % weighting method : unweighted, with grid reduction % smoothing : 5-year binned averages % columns after each regional mean composite give details of n (number of records) as well as 5%, 25%, 75% and 95% levels of composites % col 1 : time, in year AD % col 2 : East Antarctic Plateau (mean; per mil, d18O equivalent) % col 9 : Wilkes Land Coast (mean; per mil, d18O equivalent) % col 16 : Weddell Sea Coast (mean; per mil, d18O equivalent) % col 23 : Antarctic Peninsula (mean; per mil, d18O equivalent) % col 30 : West Antarctic Ice Sheet (mean; per mil, d18O equivalent) % col 37 : Victoria Land Coast (mean; per mil, d18O equivalent) % col 44 : Dronning Maud Land Coast (mean; per mil, d18O equivalent) Time (year AD, centre of 5y bin) 1. East Antarctic Plateau n 5% 25% 75% 95% 2. Wilkes Land Coast n 5% 25% 75% 95% 3. Weddell Sea Coast n 5% 25% 75% 95% 4. Antarctic Peninsula n 5% 25% 75% 95% 5. West Antarctic Ice Sheet n 5% 25% 75% 95% 6. Victoria Land Coast n 5% 25% 75% 95% 7. Dronning Maud Land Coast n 5% 25% 75% 95% 1802.5 -0.5406 28 -1.7538 -1.1864 0.0027 0.8722 -0.7096 2 -0.9178 -0.9178 -0.5014 -0.5014 0.4510 1 NaN NaN NaN NaN -0.4678 2 -0.7525 -0.7525 -0.1832 -0.1832 0.1749 10 -0.5832 -0.1811 0.5735 1.0044 -1.0872 4 -1.8042 -1.5507 -0.6980 -0.6672 -0.9942 2 -1.0441 -1.0441 -0.9443 -0.9443 1807.5 -0.1268 28 -1.5245 -1.2084 0.2789 3.2187 -1.0188 2 -1.6155 -1.6155 -0.4221 -0.4221 1.3410 1 NaN NaN NaN NaN -0.4338 2 -0.9025 -0.9025 0.0348 0.0348 -0.6027 10 -1.8231 -1.0194 -0.2613 0.4143 -0.9971 4 -2.1103 -1.6986 -0.4290 -0.4176 0.4198 2 -1.9483 -1.9483 2.7879 2.7879 1812.5 -0.0841 29 -1.2220 -0.8790 0.6051 1.2937 -0.4481 2 -0.9069 -0.9069 0.0107 0.0107 0.7850 1 NaN NaN NaN NaN -0.1727 2 -0.5485 -0.5485 0.2031 0.2031 0.0603 10 -1.0142 -0.4072 0.4281 1.2143 -0.2295 4 -1.6284 -1.3386 0.9397 1.4093 0.5827 2 0.4017 0.4017 0.7637 0.7637 1817.5 -0.1406 29 -1.7201 -0.5533 0.4890 0.6814 -0.5546 2 -0.6812 -0.6812 -0.4279 -0.4279 1.7370 1 NaN NaN NaN NaN -0.1781 2 -0.3925 -0.3925 0.0363 0.0363 0.1408 10 -0.5506 -0.3080 0.6031 1.1283 -0.9781 4 -3.3079 -2.5742 0.4667 0.7468 -1.8455 2 -3.5526 -3.5526 -0.1383 -0.1383 1822.5 -0.6242 29 -1.4643 -1.1475 -0.0072 0.4359 -0.4509 2 -0.6253 -0.6253 -0.2766 -0.2766 -0.2230 1 NaN NaN NaN NaN -0.0786 2 -0.4705 -0.4705 0.3134 0.3134 0.0839 10 -0.6875 -0.5606 0.2663 1.6193 -0.9972 4 -3.3402 -2.5754 0.4020 0.6297 -0.2178 2 -0.5163 -0.5163 0.0806 0.0806 1827.5 -0.2842 29 -1.6416 -0.9247 0.1018 1.3773 0.1164 2 -0.1450 -0.1450 0.3778 0.3778 -0.3710 1 NaN NaN NaN NaN -0.685 2 -0.9985 -0.9985 -0.3716 -0.3716 0.4294 10 -1.2585 -0.5411 1.2135 2.3477 -0.1902 4 -1.4868 -1.0292 0.5154 0.5728 -1.6969 2 -2.8115 -2.8115 -0.5823 -0.5823 1832.5 -0.1231 28 -1.5808 -0.4466 0.3441 0.6380 0.0924 2 -0.1687 -0.1687 0.3535 0.3535 1.1970 1 NaN NaN NaN NaN -0.009 2 -0.2265 -0.2265 0.2085 0.2085 0.4367 10 -1.5394 -0.1833 0.6759 3.1068 0.036 4 -1.6479 -1.1756 1.1964 1.5148 -0.0392 2 -0.8663 -0.8663 0.7880 0.7880 1837.5 -0.1901 29 -1.3651 -0.9255 0.7144 1.0964 -0.3915 2 -0.5140 -0.5140 -0.2689 -0.2689 -0.3150 1 NaN NaN NaN NaN 0.5708 2 0.4702 0.4702 0.6715 0.6715 0.8678 10 -0.2503 -0.0193 0.8216 3.6518 -1.3046 4 -1.3632 -1.3596 -1.2387 -1.2021 -0.9864 2 -1.1546 -1.1546 -0.8183 -0.8183 1842.5 -0.4965 28 -1.7139 -1.2895 0.1065 1.4982 -1.1338 2 -2.0165 -2.0165 -0.2510 -0.2510 0.5190 1 NaN NaN NaN NaN -0.8962 2 -1.4825 -1.4825 -0.3099 -0.3099 0.1446 10 -1.0220 -0.2736 0.3278 2.2843 -0.8563 4 -1.3507 -1.3108 -0.3182 -0.0272 0.2227 2 -0.0963 -0.0963 0.5417 0.5417 1847.5 -0.4054 28 -2.8990 -0.8492 -0.0121 1.9246 -0.1461 2 -0.8942 -0.8942 0.6020 0.6020 0.0930 1 NaN NaN NaN NaN -0.6435 2 -0.6965 -0.6965 -0.5905 -0.5905 -0.2707 10 -0.9585 -0.6645 0.2145 0.5190 -0.7673 4 -2.6067 -2.1083 0.5353 0.9182 -0.395 2 -0.7323 -0.7323 -0.0577 -0.0577 1852.5 -0.4166 28 -3.0822 -1.3634 0.5915 1.7769 -0.3107 2 -0.9137 -0.9137 0.2923 0.2923 -0.9030 1 NaN NaN NaN NaN -0.7548 2 -1.3965 -1.3965 -0.1132 -0.1132 0.6505 10 -0.2476 -0.0884 0.7682 3.5043 -0.4933 4 -1.0910 -1.0441 0.1600 0.5145 -0.2623 2 -0.5083 -0.5083 -0.0164 -0.0164 1857.5 -0.4849 28 -1.4261 -1.1049 0.1657 1.0722 0.2896 2 0.2498 0.2498 0.3294 0.3294 0.0030 1 NaN NaN NaN NaN -0.3124 3 -0.7777 -0.7379 0.1896 0.4590 0.4325 11 -0.4867 -0.3421 1.0011 1.1842 -1.1284 4 -2.3721 -2.1909 0.0639 0.6342 -0.9408 2 -1.0972 -1.0972 -0.7843 -0.7843 1862.5 -0.1317 28 -1.5385 -0.5955 0.4235 1.1651 0.7442 2 0.1552 0.1552 1.3332 1.3332 -1.1290 1 NaN NaN NaN NaN -0.5759 3 -1.3045 -1.1309 -0.0125 0.1867 0.1942 12 -0.9805 -0.5013 0.5761 2.0743 -0.2528 4 -1.4476 -1.3560 1.0576 1.7706 0.1172 2 -0.1993 -0.1993 0.4337 0.4337 1867.5 -0.0651 28 -1.0396 -0.6010 0.6396 1.0375 -0.1947 2 -0.2728 -0.2728 -0.1165 -0.1165 -1.1390 1 NaN NaN NaN NaN -0.6981 3 -0.9483 -0.8669 -0.5483 -0.5236 0.0366 12 -1.0658 -0.4058 0.0684 2.4793 0.2648 4 -0.8787 -0.8043 1.5454 2.2543 0.4343 2 0.1389 0.1389 0.7297 0.7297 1872.5 0.0303 28 -1.1438 -0.4108 0.4226 1.3025 -0.1916 2 -0.2854 -0.2854 -0.0979 -0.0979 -0.6890 1 NaN NaN NaN NaN -0.4901 3 -0.9485 -0.7950 -0.2241 -0.1872 -0.4534 12 -2.3125 -1.3613 0.1266 2.0477 -1.1641 4 -3.1899 -2.5317 0.0518 0.2548 -1.831 2 -1.9503 -1.9503 -1.7117 -1.7117 1877.5 -0.0974 27 -1.0042 -0.7742 0.5857 0.8346 -0.4261 2 -0.5207 -0.5207 -0.3316 -0.3316 -0.9150 1 NaN NaN NaN NaN 0.0113 3 -0.3822 -0.2615 0.2618 0.3155 0.4808 12 -0.4149 0.0920 0.9407 0.9877 -0.8248 4 -1.2592 -1.1765 -0.4471 -0.2867 -1.2582 2 -1.2663 -1.2663 -1.2501 -1.2501 1882.5 -0.3495 27 -1.9809 -1.2544 0.4760 1.6061 -0.7964 2 -1.3067 -1.3067 -0.2861 -0.2861 -0.0970 1 NaN NaN NaN NaN -0.8466 3 -1.4265 -1.2497 -0.4754 -0.3942 0.1406 12 -1.1380 -0.4489 0.5097 2.1643 -0.5786 5 -1.1365 -0.9764 -0.2015 -0.1032 -0.6871 3 -1.6393 -1.3609 -0.0536 0.1037 1887.5 -0.3884 28 -1.7012 -1.2848 0.3180 1.2894 -0.5028 2 -0.6966 -0.6966 -0.3091 -0.3091 1.0070 1 NaN NaN NaN NaN 0.1749 3 -0.1485 -0.1013 0.4847 0.6329 0.3992 12 -0.1103 0.0393 0.6873 0.8368 -0.581 5 -1.6873 -1.3408 0.1089 0.2456 -0.8542 3 -1.5258 -1.4449 -0.1763 0.1657 1892.5 0.2623 28 -1.0221 -0.6271 1.1983 2.6453 -0.8427 2 -1.6773 -1.6773 -0.0081 -0.0081 0.7290 1 NaN NaN NaN NaN 0.3046 3 -0.0925 -0.0823 0.7807 1.0582 -0.2446 13 -1.2810 -0.9754 0.2818 1.1283 0.0567 5 -0.5733 -0.5508 0.7992 1.2268 -1.558 4 -2.6263 -2.2498 -0.8661 -0.6299 1897.5 0.3144 30 -1.2688 -0.8877 1.0452 2.0515 -0.5337 2 -1.2052 -1.2052 0.1378 0.1378 -0.7050 1 NaN NaN NaN NaN -0.7367 3 -1.2085 -1.0563 -0.4514 -0.4020 0.2424 14 -1.1624 -0.1460 0.3035 1.7417 0.3198 5 -0.8490 -0.4814 1.0455 1.1868 -1.0282 4 -2.1279 -1.7561 -0.3003 0.4398 1902.5 -0.1407 32 -1.4893 -1.1974 0.5569 1.7456 -0.4918 2 -0.9981 -0.9981 0.0146 0.0146 0.7690 1 NaN NaN NaN NaN -0.2369 4 -0.7025 -0.4831 0.0094 0.1016 -0.0244 14 -0.7490 -0.2873 0.1806 0.7874 -0.1501 5 -0.6857 -0.6406 0.4293 0.7408 0.2427 5 -0.2083 -0.1043 0.5898 0.8615 1907.5 -0.0698 33 -2.4606 -1.1312 0.9457 2.8889 -0.8248 2 -1.8010 -1.8010 0.1513 0.1513 -0.0630 1 NaN NaN NaN NaN -0.543 4 -1.2065 -0.9265 -0.1594 -0.0400 -0.334 14 -1.5163 -0.8630 -0.0438 1.4403 -0.5435 5 -0.9645 -0.8431 -0.2601 -0.1872 -0.784 5 -1.5343 -1.4443 -0.1236 0.1787 1912.5 -0.2211 34 -1.4705 -0.9010 0.5448 0.8767 -0.5997 2 -1.1348 -1.1348 -0.0645 -0.0645 1.1330 1 NaN NaN NaN NaN -0.5932 4 -1.0399 -0.9442 -0.2421 -0.0510 -0.0292 14 -0.8549 -0.7303 0.6252 1.4077 0.1487 5 -0.2333 -0.1363 0.4322 0.5247 -0.5684 5 -0.9163 -0.9001 -0.2366 0.3831 1917.5 -0.1204 34 -1.7139 -0.6506 0.2931 1.4712 -0.8672 2 -2.0571 -2.0571 0.3226 0.3226 1.0970 1 NaN NaN NaN NaN -0.1931 4 -0.4368 -0.3057 -0.0806 -0.0407 0.2171 14 -0.3609 -0.2394 0.3346 1.2642 -0.0879 5 -0.9251 -0.6352 0.3787 0.4268 -0.5182 5 -2.1583 -1.2233 0.1869 0.4816 1922.5 0.4515 35 -1.0634 -0.4466 1.5996 2.0568 -0.1099 2 -0.2386 -0.2386 0.0188 0.0188 0.0790 1 NaN NaN NaN NaN -0.2998 4 -0.6885 -0.6038 0.0042 0.0902 0.0107 14 -1.5842 -0.0720 0.4412 0.5293 0.3662 5 0.0318 0.1473 0.5531 0.5728 -0.0887 5 -0.8483 -0.4133 0.2359 0.2696 1927.5 0.2095 35 -1.5059 -0.7058 0.6650 2.6460 -0.3502 2 -0.5941 -0.5941 -0.1064 -0.1064 -0.5630 1 NaN NaN NaN NaN -0.8114 4 -1.3210 -1.1958 -0.4270 -0.3839 -0.0883 14 -1.3236 -0.6966 0.3433 0.9714 -0.1565 5 -1.3288 -0.9469 0.5451 0.6605 -0.498 5 -0.9999 -0.8501 -0.1458 0.1327 1932.5 0.1175 36 -0.8458 -0.6378 0.6264 1.8920 -0.4267 2 -0.9749 -0.9749 0.1215 0.1215 -0.1350 1 NaN NaN NaN NaN -0.5256 4 -1.4865 -0.8607 -0.1906 -0.1553 0.0234 14 -0.9371 -0.0664 0.3196 0.4391 0.4947 5 -0.3704 -0.0713 0.9780 1.0288 -0.81 6 -1.5490 -1.1963 -0.4387 0.2741 1937.5 0.9 36 -0.4511 0.0313 1.1384 4.0509 -1.0804 2 -1.9197 -1.9197 -0.2410 -0.2410 0.0110 1 NaN NaN NaN NaN -0.0754 4 -0.3405 -0.2235 0.0727 0.1863 0.535 14 -0.6729 -0.0185 0.8463 2.2276 0.2192 5 -0.5242 -0.3904 0.8808 1.1708 -1.1902 6 -1.7023 -1.5609 -0.8117 -0.3163 1942.5 0.1759 37 -1.8536 -0.8128 1.1955 2.1311 -0.1375 2 -0.2546 -0.2546 -0.0205 -0.0205 0.2270 1 NaN NaN NaN NaN -0.0757 4 -0.3575 -0.2886 0.1373 0.3975 0.2887 14 -0.9637 -0.0997 0.7379 1.3930 -0.0482 4 -0.5139 -0.5139 0.4175 0.4175 -0.6653 6 -1.2733 -1.1875 -0.0117 0.0621 1947.5 0.3705 36 -0.8298 -0.1899 1.2793 1.7221 -0.1621 2 -0.2766 -0.2766 -0.0476 -0.0476 1.1270 1 NaN NaN NaN NaN -0.5353 4 -1.0855 -0.7800 -0.2906 -0.2094 -0.1872 14 -1.7557 -0.4623 0.3661 0.5516 -0.0701 4 -0.6427 -0.6427 0.5024 0.5024 -0.8624 6 -1.5503 -1.3076 -0.4697 -0.2819 1952.5 -0.3724 36 -1.2660 -1.0221 0.2008 0.7129 0.0283 2 -0.2705 -0.2705 0.3271 0.3271 -0.5850 1 NaN NaN NaN NaN -0.3205 4 -0.7625 -0.6853 0.0442 0.1743 -0.0026 14 -0.4159 -0.2472 0.1930 0.4633 -0.0301 4 -0.5901 -0.5901 0.5299 0.5299 -0.9912 6 -1.7563 -1.4651 -0.5639 -0.4459 1957.5 0.3663 36 -1.0752 -0.1505 1.0459 1.5665 -0.3122 2 -0.5546 -0.5546 -0.0698 -0.0698 0.4210 1 NaN NaN NaN NaN -0.1638 4 -0.5466 -0.3556 0.0279 0.1282 -0.4457 14 -1.1679 -0.7564 -0.2157 0.1039 0.6255 4 0.5915 0.5915 0.6596 0.6596 0.0346 7 -1.1763 -0.4162 0.5188 1.0716 1962.5 0.1482 38 -1.0286 -0.4835 0.3712 1.3051 -0.3205 2 -0.4017 -0.4017 -0.2394 -0.2394 -0.5210 1 NaN NaN NaN NaN -0.2444 4 -0.4916 -0.4621 -0.0268 0.2950 -0.4229 14 -1.2117 -0.5966 -0.1816 0.1914 -0.4271 4 -0.4645 -0.4645 -0.3896 -0.3896 0.1533 7 -0.8186 -0.8134 0.7963 1.1461 1967.5 -0.1883 38 -1.2908 -0.4193 0.2352 0.5238 -0.013 2 -0.4208 -0.4208 0.3947 0.3947 -0.2750 1 NaN NaN NaN NaN -0.5127 4 -0.6257 -0.5645 -0.4608 -0.4192 0.1179 15 -0.6255 -0.1701 0.2627 1.2987 0.9183 4 0.4566 0.4566 1.3800 1.3800 -0.0755 7 -1.3803 -0.4914 0.6263 0.7761 1972.5 -0.0189 38 -0.7870 -0.3934 0.7120 0.9301 -0.4852 2 -0.9822 -0.9822 0.0118 0.0118 -0.6450 1 NaN NaN NaN NaN 0.4256 4 -0.0083 0.1789 0.6722 0.8009 0.3282 16 -0.3725 -0.2318 0.8300 1.2954 -0.1038 4 -0.4529 -0.4529 0.2453 0.2453 0.2882 7 -0.3783 -0.2848 0.8243 1.7481 1977.5 0.0374 39 -0.8190 -0.3300 0.3124 0.9944 -0.1434 2 -0.5187 -0.5187 0.2319 0.2319 -0.3350 1 NaN NaN NaN NaN -0.0332 4 -0.4054 -0.2769 0.2106 0.2335 -0.3855 16 -1.4907 -0.9992 0.1633 0.4481 -0.1405 4 -0.2758 -0.2758 -0.0053 -0.0053 0.5679 7 -0.5817 0.1976 1.0543 1.2001 1982.5 -0.2355 39 -1.1044 -0.6271 0.2060 0.3178 0.582 2 0.5538 0.5538 0.6103 0.6103 1.0790 1 NaN NaN NaN NaN 0.179 4 -0.1535 -0.1324 0.4905 0.6815 0.45 16 -0.3099 -0.1862 0.8449 1.2789 0.1302 4 0.0035 0.0035 0.2569 0.2569 -0.0334 7 -0.7447 -0.3469 0.2404 0.8540 1987.5 0.2949 38 -0.6721 -0.2093 0.8319 1.4170 0.38 2 -0.1940 -0.1940 0.9540 0.9540 0.6970 1 NaN NaN NaN NaN 0.1856 4 -0.5235 -0.0991 0.4704 0.4959 -0.128 15 -1.5372 -0.3328 0.2451 0.6250 -0.3771 4 -1.2339 -1.2339 0.4797 0.4797 0.0965 7 -0.7395 -0.1801 0.4483 0.4952 1992.5 -0.1098 37 -1.7589 -0.9378 0.3636 1.6176 -0.3518 1 NaN NaN NaN NaN -1.5623 1 NaN NaN NaN NaN 0.1405 3 -0.2887 -0.1745 0.4486 0.5421 0.3649 15 -0.3627 0.1127 0.6318 0.9493 0.6456 4 -0.0508 -0.0508 1.3419 1.3419 0.8 6 0.6713 0.7315 0.8685 0.8845 1997.5 0.6216 18 -1.3671 -0.3575 1.6037 2.5182 NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN 0.5949 3 0.3757 0.4311 0.7580 0.8116 0.1317 15 -1.1051 -0.3458 0.8079 0.8680 -1.2467 3 -1.6147 -1.6147 -0.8787 -0.8787 0.5679 4 0.0972 0.3289 0.8070 0.9523 2002.5 0.0921 6 -1.7227 -0.0229 0.9337 0.9507 NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN 0.5509 3 0.4138 0.4551 0.6397 0.6598 0.2033 5 -0.8436 -0.3991 0.8056 1.2038 -1.2246 2 -1.3606 -1.3606 -1.0886 -1.0886 0.3563 2 -0.4615 -0.4615 1.1740 1.1740 2007.5 0.6357 4 -1.1789 -0.4109 1.6824 2.5723 NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN 0.5383 2 0.0868 0.0868 0.9898 0.9898 0.9463 2 0.7324 0.7324 1.1603 1.1603 NaN 0 NaN NaN NaN NaN 0.5825 1 NaN NaN NaN NaN 2012.5 NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN 2.1462 1 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN NaN 0 NaN NaN NaN NaN