Chele La, Bhutan - bt017 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 : BT017.CRN Measurement file name : BT017.RWL Date checked : 01SEP11 Checked by : B. Bauer Beginning year : 1620 Ending year : 2005 Principal investigators: Edward R. Cook, Paul J. Krusic, and Dorji Dukpa Site name : Chele La Site location : Bhutan Species information : LAGR HIMALAYAN LARCH Latitude : 2723 Longitude : 08919 Elevation : M Series intercorrelation: 0.599 Avg mean sensitivity : 0.189 Avg standard deviation : 0.633 Avg autocorrelation : 0.918 Number dated series : 25 Segment length tested : 50 Number problem segments: 15 Pct problem segments : 5.28 PART 5: CORRELATION OF SERIES BY SEGMENTS: Chele La 16:49 Thu 01 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 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 CLLG01B 1735 1949 .39 .73 .65 .50 .62 .67 .60 .54 2 CLLG01A 1743 1949 .61 .75 .75 .66 .59 .57 .49 .39 3 CLLG02A 1717 2005 .76 .79 .81 .79 .71 .61 .68 .73 .74 .64 .56 .58 4 CLLG02B 1695 2005 .74 .80 .76 .75 .77 .70 .66 .66 .67 .80 .83 .85 .85 5 CLLG03A 1682 2005 .78 .76 .74 .74 .67 .71 .65 .67 .81 .79 .75 .82 .79 6 CLLG03B 1679 2005 .65 .69 .71 .69 .71 .65 .71 .78 .84 .87 .81 .82 .80 7 CLLG04A 1719 2005 .55 .67 .70 .66 .58 .63 .61 .63 .74 .67 .63 .69 8 CLLG04B 1694 2005 .67 .69 .64 .79 .70 .63 .55 .60 .75 .76 .72 .57 .62 9 CLLG05A 1797 2005 .22B .25B .50 .62 .83 .84 .82 .82 .81 10 CLLG05B 1806 2005 .16B .48 .70 .81 .80 .80 .74 .76 11 CLLG06A 1798 2005 .40B .42 .41 .55 .63 .81 .78 .77 .79 12 CLLG06B 1806 2005 .46 .54 .58 .65 .77 .73 .70 .66 13 CLLG07A 1695 2005 .38 .42 .63 .76 .67 .41 .42 .49 .55 .54 .50 .68 .73 14 CLLG07b 1705 2005 .41 .63 .76 .76 .56 .50 .39 .68 .84 .68 .72 .76 15 CLLG08A 1773 2005 .56 .56 .49 .41 .40 .59 .64 .56 .38 .45 16 CLLG08B 1773 2005 .54 .55 .51 .47 .47 .64 .69 .53 .35 .41 17 CLLG09A 1789 2005 .41 .42 .56 .49 .61 .70 .60 .59 .55 18 CLLG09B 1803 2005 .47 .64 .59 .66 .71 .66 .72 .74 19 CLLG12B 1744 2005 .51 .67 .66 .58 .51 .52 .65 .70 .72 .72 .72 20 CLLG14A 1658 2005 .66 .76 .79 .62 .63 .69 .47 .42 .52 .57 .41 .48 .71 .73 21 CLLG14B 1620 2005 .40 .46 .77 .81 .72 .77 .74 .56 .48 .40 .46 .48 .63 .82 .75 22 CLLG16A 1655 2005 .24B .63 .75 .49 .50 .52 .42 .59 .51 .50 .66 .66 .70 .70 23 CLLG16B 1653 2005 .58 .69 .63 .38 .30A .29B .47 .50 .40 .52 .72 .68 .59 .63 24 CLLG17B 1686 2005 .72 .63 .38 .31B .43 .35 .46 .37 .21B .19B .24B .44 .54 25 CLLG17C 1640 2005 .41 .47 .48 .48 .38 .28A .21B .25B .32B .36 .53 .64 .49 .42 .52 Av segment correlation .41 .48 .66 .66 .59 .63 .58 .50 .53 .55 .62 .67 .65 .66 .68 PART 7: DESCRIPTIVE STATISTICS: Chele La 16:49 Thu 01 Sep 2011 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 CLLG01B 1735 1949 215 8 0 .543 1.00 3.28 .676 .933 .188 2.72 .513 -.002 2 2 CLLG01A 1743 1949 207 8 0 .587 1.03 3.76 .787 .963 .169 2.54 .365 -.033 2 3 CLLG02A 1717 2005 289 12 0 .716 .98 4.22 .638 .814 .243 2.57 .382 -.033 2 4 CLLG02B 1695 2005 311 13 0 .746 1.16 4.27 .855 .909 .249 2.45 .300 -.003 4 5 CLLG03A 1682 2005 324 13 0 .721 .87 4.35 .846 .948 .225 2.45 .400 .010 2 6 CLLG03B 1679 2005 327 13 0 .724 1.18 5.03 1.072 .948 .202 2.60 .308 -.037 2 7 CLLG04A 1719 2005 287 12 0 .620 .81 2.37 .420 .887 .175 2.61 .367 -.018 2 8 CLLG04B 1694 2005 312 13 0 .667 .96 3.45 .669 .952 .157 2.58 .368 .010 2 9 CLLG05A 1797 2005 209 9 2 .669 1.47 4.14 .864 .959 .150 2.63 .453 -.020 2 10 CLLG05B 1806 2005 200 8 1 .641 1.33 3.61 .741 .949 .166 2.63 .470 .027 2 11 CLLG06A 1798 2005 208 9 1 .640 .91 3.98 .651 .923 .210 2.69 .473 -.025 4 12 CLLG06B 1806 2005 200 8 0 .647 .95 4.41 .754 .960 .198 2.51 .308 .017 1 13 CLLG07A 1695 2005 311 13 0 .561 .88 3.15 .678 .945 .199 2.68 .463 .021 2 14 CLLG07b 1705 2005 301 12 0 .612 1.00 3.78 .825 .950 .188 2.66 .399 -.022 2 15 CLLG08A 1773 2005 233 10 0 .503 1.01 3.45 .734 .938 .187 2.59 .330 -.067 2 16 CLLG08B 1773 2005 233 10 0 .530 1.01 3.39 .778 .953 .184 2.50 .386 -.007 5 17 CLLG09A 1789 2005 217 9 0 .546 1.03 5.00 .872 .947 .194 2.59 .348 -.010 3 18 CLLG09B 1803 2005 203 8 0 .654 1.01 2.88 .551 .897 .201 2.78 .551 -.045 2 19 CLLG12B 1744 2005 262 11 0 .635 1.14 3.87 .694 .864 .215 2.76 .393 -.019 2 20 CLLG14A 1658 2005 348 14 0 .611 .64 3.99 .409 .887 .194 2.58 .325 .010 1 21 CLLG14B 1620 2005 386 15 0 .605 .76 2.51 .417 .885 .183 2.64 .344 .015 1 22 CLLG16A 1655 2005 351 14 1 .534 .86 3.14 .522 .924 .151 2.64 .344 -.027 1 23 CLLG16B 1653 2005 353 14 2 .525 .63 3.06 .428 .925 .153 2.67 .413 -.008 1 24 CLLG17B 1686 2005 320 13 4 .414 .55 1.64 .244 .873 .182 2.66 .402 -.051 1 25 CLLG17C 1640 2005 366 15 4 .401 .47 1.48 .205 .893 .168 2.62 .357 .013 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6973 284 15 .599 .92 5.03 .633 .918 .189 2.78 .385 -.011