Litang, Sichuan, China - chin020 Additional Site Information Jinbao Li, Keyan Fang, Yang Tao, Edward Cook 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 : CHIN020.CRN Measurement file name : CHIN020.RWL Date checked : 28OCT11 Checked by : B. Bauer Beginning year : 1306 Ending year : 2007 Principal investigators: Jinbao Li Keyan Fang Yang Tao Edward Cook Site name : Litang Site location : China Species information : JUTI TIBETAN JUNIPER Latitude : 3014 Longitude : 10016 Elevation : 4050M Series intercorrelation: 0.483 Avg mean sensitivity : 0.205 Avg standard deviation : 0.297 Avg autocorrelation : 0.862 Number dated series : 44 Segment length tested : 50 Number problem segments: 93 Pct problem segments : 15.74 PART 5: CORRELATION OF SERIES BY SEGMENTS: Litang 09:44 Fri 28 Oct 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 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TAN01A 1767 2007 .40 .54 .41 2 TAN01B 1740 2007 .41 .50 .63 .29A 3 TAN03A 1720 2007 .54 .54 .59 .51 .46 4 TAN03B 1720 1986 .53 .56 .79 .64 .54 5 TAN04A 1680 1980 .46 .49 .54 .69 .69 .74 6 TAN04B 1704 2007 .58 .64 .65 .61 .58 7 TAN05A 1595 2007 .34B .33B .18B .17B .34 .29B .37 .59 .44 .35B 8 TAN05B 1611 2007 .27A .31A .26A .22B .28A .45 .65 .38 .29A 9 TAN06A 1683 2007 .34 .32A .61 .66 .59 .54 10 TAN06B 1759 2007 .54 .55 .41 11 TAN08A 1628 2007 .32A .35 .37 .33 .48 .50 .45 .51 12 TAN08B 1791 2007 .54 .42 13 TAN09A 1706 2007 .35B .37 .40 .55 .57 14 TAN09B 1723 2007 .44 .44 .32A .44 .70 15 TAN10A 1679 2007 .41 .33A .62 .50 .39 .49 16 TAN10B 1444 2007 .48 .44 .38 .45 .56 .34 -.05B .28B .44 .46 .49 .37 .58 .58 .51 .67 17 TAN10C 1416 2007 .45 .41 .28A .33 .31A .34 .17B-.19B .30A .51 .46 .48 .40 .52 .50 .41 .47 18 TAN11A 1817 2007 .36 19 TAN11B 1779 2007 .59 .51 20 TAN12A 1683 2007 .52 .54 .55 .51 .50 .68 21 TAN12B 1676 2007 .46 .32A .41 .56 .51 .52 22 TAN13A 1719 1951 .50 .53 .44 .39 .48 23 TAN13B 1768 2007 .44 .42 .60 24 TAN14A 1683 2007 .35 .35 .31B .42 .74 .63 25 TAN14B 1761 2007 .71 .74 .70 26 TAN15A 1694 2007 .50 .44 .42 .42 .70 .76 27 TAN15B 1750 2007 .47 .69 .74 28 TAN16A 1551 2007 .27B .21B .32A .52 .56 .48 .28A .20A .38 .65 .69 29 TAN16B 1574 1950 .42 .39 .41 .43 .51 .39 .20B .16B .29B .34 .39 30 TAN18A 1645 2007 .15B .12B .27A .33 .51 .54 .47 .48 31 TAN18B 1748 2007 .56 .52 .53 .21B 32 TAN19A 1824 2007 .59 34 TAN21A 1675 2007 .23B .34 .64 .75 .65 .62 35 TAN21B 1716 2007 .55 .63 .77 .67 .67 36 TAN23A 1772 2007 .40 .40 .45 38 TAN24A 1306 2007 .55 .57 .71 .70 .69 .75 .65 .45 .49 .59 .38 .20B .35 .50 .50 .34B .39 .55 .58 .69 39 TAN24B 1343 1998 .55 .57 .72 .74 .76 .80 .70 .58 .53 .51 .46 .25B .26B .48 .40 .25B .48 .56 .52 .64 40 TAN24C 1451 2007 .57 .44 .48 .63 .47 .30A .17B .24B .56 .49 .27B .41 .74 .70 .69 41 TAN25A 1709 2007 .48 .53 .61 .55 .44 42 TAN25B 1720 2007 .46 .47 .50 .55 .44 43 TAN26A 1619 2006 .39 .43 .51 .40 .40 .56 .59 .57 .64 44 TAN26B 1516 2007 .32A .45 .48 .37 .38 .42 .34 .15B .18B .45 .54 .53 .56 Av segment correlation .55 .57 .71 .63 .59 .57 .50 .43 .50 .41 .25 .30 .35 .41 .39 .38 .48 .54 .55 .54 PART 5: CORRELATION OF SERIES BY SEGMENTS: Litang 09:44 Fri 28 Oct 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TAN01A 1767 2007 .36 .41 .32A .38 .53 .54 .39 2 TAN01B 1740 2007 .14B .49 .54 .60 .66 .61 .65 3 TAN03A 1720 2007 .54 .62 .63 .51 .46 .54 .48 4 TAN03B 1720 1986 .63 .56 .39 .68 .75 .63 5 TAN04A 1680 1980 .52 .42 .39 .42 .47 .36 6 TAN04B 1704 2007 .49 .42 .44 .43 .50 .50 .57 7 TAN05A 1595 2007 .34 .23A .14B .23A .32A .44 .39 8 TAN05B 1611 2007 .34 .15B .24B .38 .31A .42 .41 9 TAN06A 1683 2007 .52 .22B-.02B .34 .47 .33B .29A 10 TAN06B 1759 2007 .21B .18B .14B .44 .41 .29A .43B 11 TAN08A 1628 2007 .37 .18B .17B .30A .26B .29B .33B 12 TAN08B 1791 2007 .24B .23A .35 .40 .18B .01B .10B 13 TAN09A 1706 2007 .57 .50 .28A .41 .53 .63 .58 14 TAN09B 1723 2007 .53 .40 .48 .62 .50 .54 .39 15 TAN10A 1679 2007 .50 .61 .57 .54 .60 .67 .64 16 TAN10B 1444 2007 .82 .80 .61 .50 .62 .56 .58 17 TAN10C 1416 2007 .64 .65 .52 .48 .59 .74 .64 18 TAN11A 1817 2007 .39 .47 .62 .70 .81 .62 .58 19 TAN11B 1779 2007 .57 .74 .74 .61 .69 .70 .65 20 TAN12A 1683 2007 .73 .77 .68 .45 .51 .55 .39 21 TAN12B 1676 2007 .60 .69 .65 .42 .40 .60 .50 22 TAN13A 1719 1951 .58 .55 .50 .49 .53 23 TAN13B 1768 2007 .59 .56 .41 .38 .53 .61 .66 24 TAN14A 1683 2007 .55 .65 .71 .72 .77 .57 .51 25 TAN14B 1761 2007 .59 .52 .53 .69 .60 .46 .28A 26 TAN15A 1694 2007 .68 .57 .56 .60 .71 .77 .71 27 TAN15B 1750 2007 .72 .78 .72 .63 .70 .74 .73 28 TAN16A 1551 2007 .67 .60 .57 .48 .53 .38 .38 29 TAN16B 1574 1950 .49 .46 .49 .40 .40 30 TAN18A 1645 2007 .35 .38 .47 .14B .28B .38 .41 31 TAN18B 1748 2007 .38 .57 .41 .21B-.01B .09B .14B 32 TAN19A 1824 2007 .60 .58 .67 .67 .63 .70 .55 33 TAN19B 1858 2007 .73 .69 .64 .58 .68 .64 34 TAN21A 1675 2007 .73 .79 .70 .59 .57 .61 .53 35 TAN21B 1716 2007 .71 .66 .64 .48 .39 .42 .34B 36 TAN23A 1772 2007 .43 .65 .72 .40 .44 .60 .51 37 TAN23B 1859 2007 .51 .59 .47 .49 .52 .42 38 TAN24A 1306 2007 .71 .53 .44 .63 .65 .65 .62 39 TAN24B 1343 1998 .75 .60 .33 .49 .71 .73 40 TAN24C 1451 2007 .70 .45 .37 .62 .62 .63 .70 41 TAN25A 1709 2007 .30A .42 .64 .62 .58 .71 .58 42 TAN25B 1720 2007 .29A .45 .65 .73 .75 .75 .61 43 TAN26A 1619 2006 .53 .50 .61 .52 .70 .69 .67 44 TAN26B 1516 2007 .35 .28B .49 .59 .65 .62 .63 Av segment correlation .52 .51 .49 .50 .53 .54 .50 PART 7: DESCRIPTIVE STATISTICS: Litang 09:44 Fri 28 Oct 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 TAN01A 1767 2007 241 10 1 .404 .57 2.23 .316 .905 .157 2.61 .366 .011 2 2 TAN01B 1740 2007 268 11 2 .478 .55 1.34 .203 .855 .146 2.54 .400 -.067 1 3 TAN03A 1720 2007 288 12 0 .515 .90 1.96 .352 .838 .189 2.56 .351 -.025 1 4 TAN03B 1720 1986 267 11 0 .588 .61 1.61 .369 .920 .191 2.61 .310 -.033 2 5 TAN04A 1680 1980 301 12 0 .492 .55 1.79 .470 .959 .189 2.48 .296 -.007 1 6 TAN04B 1704 2007 304 12 0 .521 .53 1.66 .320 .945 .186 2.71 .448 -.009 1 7 TAN05A 1595 2007 413 17 10 .317 .41 1.38 .286 .863 .291 2.66 .341 -.037 9 8 TAN05B 1611 2007 397 16 9 .322 .40 1.77 .313 .859 .343 2.59 .339 -.001 2 9 TAN06A 1683 2007 325 13 5 .391 .70 2.19 .481 .890 .205 2.58 .340 -.025 1 10 TAN06B 1759 2007 249 10 5 .351 .53 1.11 .176 .649 .230 2.48 .320 -.012 1 11 TAN08A 1628 2007 380 15 7 .332 .74 1.65 .325 .894 .159 2.66 .342 -.024 1 12 TAN08B 1791 2007 217 9 5 .275 .58 1.70 .257 .882 .162 2.61 .357 -.030 2 13 TAN09A 1706 2007 302 12 2 .462 .66 1.89 .448 .953 .157 2.53 .317 .019 2 14 TAN09B 1723 2007 285 12 1 .467 .68 2.43 .472 .955 .167 2.53 .329 -.020 1 15 TAN10A 1679 2007 329 13 1 .516 .38 .95 .145 .796 .205 2.54 .347 -.003 1 16 TAN10B 1444 2007 564 23 2 .497 .34 .85 .130 .834 .176 2.62 .344 -.034 1 17 TAN10C 1416 2007 592 24 5 .419 .40 1.04 .200 .905 .181 2.75 .381 -.030 1 18 TAN11A 1817 2007 191 8 0 .540 1.01 1.95 .332 .826 .149 2.50 .421 -.033 1 19 TAN11B 1779 2007 229 9 0 .628 .92 1.99 .326 .755 .212 2.63 .374 .007 1 20 TAN12A 1683 2007 325 13 0 .569 .38 1.35 .257 .916 .212 2.59 .343 -.039 3 21 TAN12B 1676 2007 332 13 1 .519 .45 1.65 .352 .938 .229 2.46 .389 -.028 2 22 TAN13A 1719 1951 233 10 0 .493 .71 1.10 .167 .736 .136 2.51 .363 -.008 4 23 TAN13B 1768 2007 240 10 0 .507 .66 1.37 .225 .866 .141 2.51 .313 .004 1 24 TAN14A 1683 2007 325 13 1 .536 .70 1.89 .294 .872 .167 2.67 .318 .028 1 25 TAN14B 1761 2007 247 10 1 .568 .94 1.95 .283 .720 .170 2.54 .340 .011 1 26 TAN15A 1694 2007 314 13 0 .594 .56 2.19 .387 .921 .219 2.55 .331 -.028 1 27 TAN15B 1750 2007 258 10 0 .672 .53 2.05 .318 .877 .229 2.37 .241 .002 1 28 TAN16A 1551 2007 457 18 5 .446 .48 2.71 .497 .945 .246 2.65 .433 .007 2 29 TAN16B 1574 1950 377 16 3 .390 .38 1.94 .369 .948 .264 2.71 .450 .001 2 30 TAN18A 1645 2007 363 15 5 .335 .43 1.69 .295 .932 .192 2.59 .350 -.034 1 31 TAN18B 1748 2007 260 11 5 .333 .32 .87 .173 .881 .260 2.70 .367 -.013 1 32 TAN19A 1824 2007 184 8 0 .597 .86 1.77 .346 .838 .189 2.49 .346 -.008 2 33 TAN19B 1858 2007 150 6 0 .679 .75 1.40 .233 .670 .221 2.45 .357 -.020 1 34 TAN21A 1675 2007 333 13 1 .583 .71 2.22 .328 .843 .202 2.53 .357 .010 2 35 TAN21B 1716 2007 292 12 1 .576 .59 1.97 .300 .862 .218 2.67 .349 .034 1 36 TAN23A 1772 2007 236 10 0 .494 .91 2.17 .338 .761 .207 2.45 .307 -.056 1 37 TAN23B 1859 2007 149 6 0 .493 .94 2.48 .340 .748 .206 2.52 .401 -.041 1 38 TAN24A 1306 2007 702 27 2 .536 .51 1.66 .245 .864 .188 2.63 .336 -.003 1 39 TAN24B 1343 1998 656 26 3 .554 .46 1.31 .200 .834 .198 2.50 .323 -.008 1 40 TAN24C 1451 2007 557 22 4 .512 .48 1.40 .211 .838 .187 2.68 .329 .003 1 41 TAN25A 1709 2007 299 12 1 .515 .91 1.95 .360 .849 .177 2.67 .403 -.014 1 42 TAN25B 1720 2007 288 12 1 .527 .84 1.58 .320 .847 .174 2.72 .429 .016 1 43 TAN26A 1619 2006 388 16 0 .530 .75 2.24 .410 .857 .293 2.56 .320 .007 3 44 TAN26B 1516 2007 492 20 4 .415 .53 1.34 .231 .784 .252 2.48 .308 .000 7 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 14599 591 93 .483 .58 2.71 .297 .862 .205 2.75 .351 -.011