Pembu, Bhutan - bt013 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 : BT013.CRN Measurement file name : BT013.RWL Date checked : 01SEP11 Checked by : B. Bauer Beginning year : 1741 Ending year : 2005 Principal investigators: Edward R. Cook, Paul J. Krusic, and Dorji Dukpa Site name : Pembu Site location : Bhutan Species information : PIWA HIMALAYAN PINE Latitude : 2715 Longitude : 08923 Elevation : M Series intercorrelation: 0.443 Avg mean sensitivity : 0.176 Avg standard deviation : 1.520 Avg autocorrelation : 0.922 Number dated series : 12 Segment length tested : 50 Number problem segments: 8 Pct problem segments : 9.76 PART 5: CORRELATION OF SERIES BY SEGMENTS: Pembu PIWA 16:46 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 pempw02b 1766 2005 .43 .43 .54 .40 .52 .59 .40 .45 .35 .35 2 pempw02a 1741 2005 .64 .67 .58 .57 .52 .41 .39 .46 .38 .35 3 pempw03b 1780 2005 .29A .36 .50 .75 .56 .30A .47 .47 .43 4 pempw04a 1817 2005 .40 .54 .72 .66 .51 .56 .60 .52 5 pempw04b 1817 2005 .54 .54 .59 .58 .52 .43 .49 .16B 6 pempw10a 1840 2005 .43 .53 .61 .49 .45 .55 .46 7 pempw10b 1817 1996 .29B .31B .50 .54 .44 .28A .37 8 pempw06a 1914 2005 .53 .48 .48 .49 9 pempw13b 1894 1993 .47 .55 .52 .34 10 pempw06b 1877 2005 .32B .39 .47 .45 .40 11 pempw13a 1867 1994 .35 .40 .45 .47 .22B 12 pempw08a 1862 1979 .48 .51 .43 .35 .33 Av segment correlation .53 .46 .45 .47 .55 .51 .45 .45 .42 .39 PART 7: DESCRIPTIVE STATISTICS: Pembu PIWA 16:46 Thu 01 Sep 2011 Page 8 ----------------------------------------------------------------------------------------------------------------------------------- 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 pempw02b 1766 2005 240 10 0 .425 1.82 7.62 1.551 .940 .142 2.54 .349 .006 2 2 pempw02a 1741 2005 265 10 0 .496 2.06 9.47 1.894 .921 .177 2.61 .370 -.047 2 3 pempw03b 1780 2005 226 9 2 .439 1.90 6.10 1.349 .944 .189 2.60 .386 -.014 3 4 pempw04a 1817 2005 189 8 0 .561 2.18 7.46 1.660 .925 .206 2.63 .399 -.021 2 5 pempw04b 1817 2005 189 8 1 .381 2.16 8.37 1.435 .922 .189 2.43 .249 .164 2 6 pempw10a 1840 2005 166 7 0 .527 1.82 5.86 1.194 .943 .150 2.57 .417 .000 1 7 pempw10b 1817 1996 180 7 3 .393 1.96 5.00 1.320 .939 .158 2.67 .353 -.040 2 8 pempw06a 1914 2005 92 4 0 .521 2.33 5.98 1.177 .864 .170 2.74 .577 -.098 2 9 pempw13b 1894 1993 100 4 0 .405 2.59 5.50 1.429 .951 .148 2.57 .496 -.024 2 10 pempw06b 1877 2005 129 5 1 .360 2.75 9.07 1.665 .814 .233 2.82 .401 .002 2 11 pempw13a 1867 1994 128 5 1 .358 2.58 5.73 1.416 .937 .180 2.69 .477 .038 2 12 pempw08a 1862 1979 118 5 0 .411 3.38 9.00 1.926 .910 .169 2.72 .439 -.036 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2022 82 8 .443 2.20 9.47 1.520 .922 .176 2.82 .391 -.002