Bakun, Philippines - ph001 Additional Site Information William E. Wright and Nestor Baguinon 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 : PH001.CRN Measurement file name : PH001.RWL Date checked : 26OCT11 Checked by : B. Bauer Beginning year : 1721 Ending year : 2005 Principal investigators: William E. Wright Nestor Baguinon Site name : Bakun Site location : Philippines Species information : PIKE KHASI PINE Latitude : 1647 Longitude : 12043 Elevation : M Series intercorrelation: 0.457 Avg mean sensitivity : 0.293 Avg standard deviation : 1.385 Avg autocorrelation : 0.707 Number dated series : 34 Segment length tested : 50 Number problem segments: 14 Pct problem segments : 8.43 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bakun 15:36 Wed 26 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BKP02a 1830 1940 .43 .70 .69 .62 2 BKP07a 1886 1960 .40 .55 .57 3 BKP09a 1806 1975 .21B .53 .69 .56 .49 .66 .64 4 BKP09b 1842 1995 .48 .61 .56 .46 .41 .39 5 BKP12b 1885 1975 .68 .62 .46 .44 6 BKP12c 1877 1975 .33B .57 .36 .33 7 BKP12d 1885 2005 .54 .47 .42 .35 .30A 8 BKP14b 1918 1950 .59 9 BKP15a 1839 1900 .49 .45 .44 10 BKP15c 1920 2004 .42 .50 .40 .34 11 BKP15b 1851 1970 .41 .52 .41 .51 12 BKP16a 1839 1970 .28A .32A .51 .42 .39 13 BKP17a 1833 1950 .54 .52 .48 .54 .56 14 BKP17b 1841 1960 .61 .65 .61 .53 .43 15 BKP22a 1846 1929 .53 .51 .48 .44 16 BKP24a 1870 2005 .31A .35 .29A .43 .47 .38 17 BKP26a 1950 2005 .54 .61 18 BKP28a 1940 2005 .43 .52 .52 19 BKP28b 1862 2005 .29A .34B .27A .40 .61 .61 20 BKP29a 1842 1971 .47 .42 .41 .57 .74 21 BKP29b 1890 2005 .57 .69 .56 .58 .54 22 BKP30a 1896 2001 .36 .42 .32A .44 .43 23 BKP31a 1915 2005 .39 .56 .53 .51 24 BKP32a 1890 2005 .31B .45 .43 .54 .44 25 BKP32b 1888 1969 .50 .56 .43 26 BKP33a 1855 2005 .53 .67 .40 .39 .41 .40 27 BKP33b 1748 2005 .40 .43 .70 .55 .44 .55 .58 .52 .55 .53 .52 28 BKP33c 1721 2005 .32A .35 .61 .54 .41 .47 .58 .49 .47 .53 .57 29 BKP034a 1865 1995 .62 .67 .64 .48 .33B 30 BKP034b 1915 1950 .53 31 BKP35a 1880 2005 .45 .63 .47 .49 .48 32 BKP35b 1881 2005 .44 .56 .56 .56 .50 33 BKP37a 1798 2005 .51 .50 .59 .46 .45 .63 .59 .53 .48 34 BKP37b 1782 1902 .54 .57 .66 .56 .52 Av segment correlation .36 .39 .59 .47 .50 .50 .50 .51 .48 .48 .48 PART 7: DESCRIPTIVE STATISTICS: Bakun 15:36 Wed 26 Oct 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 BKP02a 1830 1940 111 4 0 .590 2.60 8.11 1.656 .870 .217 2.57 .438 -.001 1 2 BKP07a 1886 1960 75 3 0 .418 2.49 11.56 2.381 .810 .358 2.82 .403 -.006 2 3 BKP09a 1806 1975 170 7 1 .423 1.57 5.23 .990 .746 .268 2.79 .346 -.049 1 4 BKP09b 1842 1995 154 6 0 .447 2.15 9.28 1.196 .522 .334 2.87 .402 .011 1 5 BKP12b 1885 1975 91 4 0 .571 1.56 4.28 .761 .676 .308 2.67 .439 -.027 1 6 BKP12c 1877 1975 99 4 1 .335 2.26 4.94 .833 .479 .281 2.59 .349 -.106 1 7 BKP12d 1885 2005 121 5 1 .393 3.55 9.63 1.827 .776 .262 2.58 .427 -.062 1 8 BKP14b 1918 1950 33 1 0 .586 3.89 11.79 2.129 .540 .331 2.95 .690 -.062 2 9 BKP15a 1839 1900 62 3 0 .478 3.20 8.80 1.269 .558 .263 2.54 .383 .008 1 10 BKP15c 1920 2004 85 4 0 .360 2.29 4.73 1.115 .737 .282 2.65 .523 -.004 1 11 BKP15b 1851 1970 120 4 0 .443 3.00 7.79 1.370 .759 .228 2.55 .316 -.022 1 12 BKP16a 1839 1970 132 5 2 .337 2.48 9.64 2.249 .866 .300 2.84 .438 -.029 1 13 BKP17a 1833 1950 118 5 0 .542 3.13 7.86 1.367 .739 .275 2.78 .481 .043 2 14 BKP17b 1841 1960 120 5 0 .539 2.95 7.50 1.478 .747 .303 2.54 .348 -.011 1 15 BKP22a 1846 1929 84 4 0 .455 2.85 9.38 2.136 .829 .283 2.86 .506 -.055 2 16 BKP24a 1870 2005 136 6 2 .360 2.58 11.42 1.869 .562 .295 3.13 .494 -.022 1 17 BKP26a 1950 2005 56 2 0 .557 3.93 11.18 2.049 .499 .344 2.58 .428 -.108 1 18 BKP28a 1940 2005 66 3 0 .448 1.40 3.30 .677 .756 .255 2.85 .583 .004 1 19 BKP28b 1862 2005 144 6 3 .349 2.57 7.06 1.303 .747 .232 2.68 .418 -.055 1 20 BKP29a 1842 1971 130 5 0 .516 2.03 8.83 1.160 .518 .327 3.20 .501 .007 2 21 BKP29b 1890 2005 116 5 0 .552 2.14 11.21 1.469 .513 .362 2.79 .395 .019 1 22 BKP30a 1896 2001 106 5 1 .396 3.04 9.93 2.023 .831 .274 2.57 .430 .054 1 23 BKP31a 1915 2005 91 4 0 .434 1.50 4.46 .921 .840 .249 2.74 .545 -.038 1 24 BKP32a 1890 2005 116 5 1 .391 3.17 8.44 1.787 .842 .240 2.77 .457 -.016 5 25 BKP32b 1888 1969 82 3 0 .424 3.63 7.97 1.796 .838 .245 2.58 .427 -.039 1 26 BKP33a 1855 2005 151 6 0 .455 1.34 9.22 1.184 .528 .305 2.73 .419 -.046 1 27 BKP33b 1748 2005 258 11 0 .459 1.43 5.82 1.021 .800 .292 2.60 .335 .007 1 28 BKP33c 1721 2005 285 11 1 .441 1.19 4.70 .700 .696 .326 2.75 .406 -.007 1 29 BKP034a 1865 1995 131 5 1 .476 3.40 11.42 2.535 .820 .321 2.78 .481 -.051 3 30 BKP034b 1915 1950 36 1 0 .534 2.73 4.90 1.013 .567 .286 2.74 .561 .032 2 31 BKP35a 1880 2005 126 5 0 .492 2.18 7.58 1.541 .846 .251 2.59 .378 -.050 2 32 BKP35b 1881 2005 125 5 0 .466 1.64 7.19 1.473 .821 .304 2.83 .431 -.085 2 33 BKP37a 1798 2005 208 9 0 .517 1.62 6.38 1.113 .695 .334 2.74 .427 -.064 2 34 BKP37b 1782 1902 121 5 0 .552 1.42 7.78 .943 .402 .361 2.83 .367 -.044 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4059 166 14 .457 2.25 11.79 1.385 .707 .293 3.20 .424 -.025