Gaytsha, Bhutan - bt001 Additional Site Information Edward R. Cook, Paul J. Krusic, and Dorji Dukpa Purpose of Collection: Climatology - precipitation analysis Reference: Cook, E.R., K.J. Anchukaitis, B.M. Buckley, R.D. D'Arrigo, G.C. Jacoby, and W.E. Wright. 2010. Asian Monsoon Failure and Megadrought During the Last Millennium. Science, Vol. 328, Issue 5977, pp.486-489, 23 April 2010. DOI: 10.1126/science.1185188 COFECHA output: Chronology file name : BT001.CRN Measurement file name : BT001.RWL Date checked : 06SEP11 Checked by : B. Bauer Beginning year : 1294 Ending year : 2003 Principal investigators: Edward R. Cook, Paul J. Krusic, and Dorji Dukpa Site name : Gaytsha Site location : Bhutan Species information : TSDU EAST HIMALAYAN HEMLOCK Latitude : 2735 Longitude : 09039 Elevation : M Series intercorrelation: 0.521 Avg mean sensitivity : 0.209 Avg standard deviation : 0.515 Avg autocorrelation : 0.863 Number dated series : 26 Segment length tested : 50 Number problem segments: 25 Pct problem segments : 6.07 PART 5: CORRELATION OF SERIES BY SEGMENTS: Gaytsha 14:24 Tue 06 Sep 2011 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 GATTD06A 1295 1995 .42 .51 .65 .75 .76 .72 .69 .52 .43 .62 .65 .57 .51 .60 .63 .51 .49 .59 .57 .30B 2 GATTD06B 1294 2003 .42 .51 .65 .75 .76 .72 .69 .52 .44 .50 .44 .39 .52 .75 .67 .59 .55 .46 .49 .52 3 GATTD20A 1722 2003 .59 .63 .39 4 GATTD17B 1650 2003 .62 .54 .48 .50 .58 5 GATTD17A 1665 1987 .41 .45 .52 .50 .29B 6 GATTD09A 1590 2003 .37 .49 .53 .50 .52 .53 .36 .23A 7 GATTD20C 1609 2003 .40 .45 .45 .59 .60 .55 .49 8 GATTD07B 1723 2003 .59 .57 .49 9 GATTD19A 1741 2003 .41 .49 10 GATTD19B 1720 2003 .44 .46 .39 11 GATTD18B 1662 2003 .24B .28A .39 .56 .58 12 GATTD11A 1563 2003 .38 .49 .48 .32A .39 .59 .57 .63 .35 13 GATTD11B 1511 2003 .54 .46 .30B .45 .45 .52 .54 .43 .48 .75 .59 14 GATTD07A 1694 2003 .44 .48 .54 .51 15 GATTD18A 1659 2003 .54 .66 .66 .71 .54 16 GATTD09B 1664 2003 .65 .65 .74 .70 .49 17 GATTD16A 1591 1865 .43 .44 .49 .45 .41 .54 .69 .59 18 GATTD08B 1541 2001 .54 .48 .33 .38 .55 .62 .64 .58 .56 .35 19 GATTD08A 1664 1999 .58 .56 .60 .54 .37 20 GATTD05B 1549 2003 .52 .60 .64 .46 .33 .47 .61 .50 .53 .44 22 GATTD01A 1661 2003 .64 .61 .68 .70 .53 23 GATTD02A 1545 2003 .48 .47 .40 .47 .64 .63 .57 .48 .53 .56 24 GATTD02B 1541 2003 .60 .61 .72 .70 .66 .73 .59 .66 .85 .62 25 GATTD04B 1632 2003 .49 .54 .59 .65 .58 .52 26 GATTD10B 1580 2002 .47 .32A .46 .65 .63 .72 .78 .61 Av segment correlation .42 .51 .65 .75 .76 .72 .69 .52 .44 .55 .53 .48 .48 .50 .52 .54 .54 .56 .59 .47 PART 5: CORRELATION OF SERIES BY SEGMENTS: Gaytsha 14:24 Tue 06 Sep 2011 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1775 1800 1825 1850 1875 1900 1925 1950 1975 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 GATTD06A 1295 1995 .34 .58 .48 .45 .58 .67 .67 .75 2 GATTD06B 1294 2003 .59 .65 .60 .57 .58 .46 .39 .63 .64 3 GATTD20A 1722 2003 .42 .50 .24B .45 .64 .49 .35 .39 .42 4 GATTD17B 1650 2003 .60 .44 .49 .38 .42 .39 .31A .50 .47 5 GATTD17A 1665 1987 .44 .59 .53 .49 .45 .42 .42 .57 6 GATTD09A 1590 2003 .30A .52 .67 .57 .49 .47 .47 .52 .50 7 GATTD20C 1609 2003 .45 .25B .32B .43B .49 .53 .52 .59 .55 8 GATTD07B 1723 2003 .45 .42 .33A .42 .36 .42 .59 .55 .51 9 GATTD19A 1741 2003 .49 .69 .69 .69 .61 .55 .57 .51 .48 10 GATTD19B 1720 2003 .55 .72 .72 .72 .59 .55 .57 .67 .66 11 GATTD18B 1662 2003 .51 .60 .70 .63 .57 .61 .58 .54 .58 12 GATTD11A 1563 2003 .33 .57 .68 .69 .63 .46 .30A .27A .26A 13 GATTD11B 1511 2003 .60 .61 .68 .60 .39 .44 .57 .66 .62 14 GATTD07A 1694 2003 .59 .72 .53 .56 .70 .54 .55 .64 .61 15 GATTD18A 1659 2003 .48 .61 .56 .57 .70 .76 .53 .44 .45 16 GATTD09B 1664 2003 .47 .55 .36 .33A .60 .72 .70 .44 .39 17 GATTD16A 1591 1865 .65 .60 .23B 18 GATTD08B 1541 2001 .48 .69 .64 .64 .63 .58 .56 .68 .68 19 GATTD08A 1664 1999 .50 .63 .62 .64 .64 .57 .55 .57 20 GATTD05B 1549 2003 .49 .43 .33B .41 .43 .41B .49 .49 .47 21 GATTD04A 1781 2003 .50 .55 .49 .49 .42 .37 .46 .62 .62 22 GATTD01A 1661 2003 .52 .60 .34 .27B .60 .50 .34B .47 .43 23 GATTD02A 1545 2003 .52 .35 .50 .66 .59 .54 .57 .53 .50 24 GATTD02B 1541 2003 .51 .39B .50 .74 .74 .72 .63 .74 .77 25 GATTD04B 1632 2003 .58 .55 .63 .63 .46 .39 .47 .57 .53 26 GATTD10B 1580 2002 .52 .63 .76 .73 .68 .73 .73 .55 .52 Av segment correlation .50 .56 .52 .55 .56 .53 .52 .56 .53 PART 7: DESCRIPTIVE STATISTICS: Gaytsha 14:24 Tue 06 Sep 2011 Page 11 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 GATTD06A 1295 1995 701 28 1 .555 .60 3.19 .415 .948 .172 2.51 .249 .005 9 2 GATTD06B 1294 2003 710 29 0 .529 .58 3.57 .521 .947 .206 2.65 .338 -.020 3 3 GATTD20A 1722 2003 282 12 1 .433 .60 4.59 .680 .809 .294 2.57 .307 -.028 1 4 GATTD17B 1650 2003 354 14 1 .479 .72 1.71 .282 .850 .173 2.67 .388 .018 1 5 GATTD17A 1665 1987 323 13 1 .454 .68 1.64 .304 .810 .202 2.78 .329 -.017 1 6 GATTD09A 1590 2003 414 17 2 .463 .74 5.77 .628 .904 .207 2.80 .394 -.030 3 7 GATTD20C 1609 2003 395 16 3 .465 1.02 3.71 .620 .868 .214 2.75 .347 -.043 4 8 GATTD07B 1723 2003 281 12 1 .471 1.57 5.78 1.026 .850 .194 2.89 .442 -.040 2 9 GATTD19A 1741 2003 263 11 0 .549 1.56 4.78 1.026 .893 .196 2.70 .453 .015 1 10 GATTD19B 1720 2003 284 12 0 .592 1.46 5.93 1.081 .920 .198 2.64 .329 -.055 2 11 GATTD18B 1662 2003 342 14 2 .501 1.09 3.83 .627 .750 .277 2.76 .458 -.023 1 12 GATTD11A 1563 2003 441 18 4 .449 .66 3.42 .462 .876 .188 2.85 .388 -.019 2 13 GATTD11B 1511 2003 493 20 1 .518 .91 4.98 .739 .883 .200 2.75 .318 -.040 3 14 GATTD07A 1694 2003 310 13 0 .570 1.10 6.33 .925 .892 .189 2.81 .338 -.044 2 15 GATTD18A 1659 2003 345 14 0 .573 1.13 3.58 .563 .809 .236 2.67 .315 -.038 2 16 GATTD09B 1664 2003 340 14 1 .569 .45 1.75 .220 .723 .321 2.67 .324 -.040 2 17 GATTD16A 1591 1865 275 11 1 .483 .56 1.64 .305 .910 .207 2.74 .388 -.004 3 18 GATTD08B 1541 2001 461 19 0 .539 .80 2.39 .515 .895 .249 2.57 .287 -.037 3 19 GATTD08A 1664 1999 336 13 0 .538 .56 2.74 .396 .844 .273 2.62 .316 -.059 1 20 GATTD05B 1549 2003 455 19 2 .455 .93 2.60 .440 .841 .209 2.74 .375 -.044 2 21 GATTD04A 1781 2003 223 9 0 .494 .76 1.64 .249 .790 .161 2.62 .402 -.014 1 22 GATTD01A 1661 2003 343 14 2 .502 1.01 1.89 .278 .710 .162 2.53 .307 -.016 2 23 GATTD02A 1545 2003 459 19 0 .519 .90 2.66 .479 .901 .179 2.52 .293 -.033 4 24 GATTD02B 1541 2003 463 19 1 .647 .92 3.69 .479 .900 .178 2.74 .310 -.039 2 25 GATTD04B 1632 2003 372 15 0 .535 .43 1.04 .219 .902 .186 2.59 .367 -.036 2 26 GATTD10B 1580 2002 423 17 1 .605 .51 1.66 .241 .779 .217 2.59 .258 -.016 3 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 10088 412 25 .521 .82 6.33 .515 .863 .209 2.89 .339 -.026