Water Supply, Alaska - AK029 Additional Site Information Gordon C. Jacoby, Greg Wiles and Parker E. Calkin Detrending Method: Negative exponontial or linear regression with negative or 0 slope Purpose of Collection: Climatology - temperature analyses Cores located at the Tree Ring Lab, Lamont-Doherty Earth Observatory Reference: Wiles, G. C., D'Arrigo, R.D. and Jacoby, G.C., 1998, Gulf of Alaska atmosphere-ocean variability over recent centuries inferred from coastal tree-ring records: Climatic Change 38, 289-306. COFECHA output: Chronology file name : AK029.CRN Measurement file name : AK029.RWL Date checked : 11JUL06 Checked by : B. Bauer Beginning year : 1727 Ending year : 1989 Principal investigators: Gordon C. Jacoby, Greg Wiles, Parker E. Calkin Site name : Water Supply Site location : Alaska Species information : TSME MOUNTAIN HEMLOCK Latitude : 6007 Longitude : -14928 Elevation : 305M Series intercorrelation: 0.654 Avg mean sensitivity : 0.311 Avg standard deviation : 0.425 Avg autocorrelation : 0.683 Number dated series : 24 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Water Supply 12:41 Tue 11 Jul 2006 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 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WS1S 1843 1989 .74 .70 .73 .70 .69 .61 2 WS1N 1827 1989 .65 .61 .53 .50 .67 .74 3 WS2SW 1775 1989 .51 .68 .68 .75 .55 .51 .70 .66 4 WS4W 1848 1989 .75 .82 .78 .76 .61 .54 5 WS4S 1869 1968 .75 .74 .68 .58 6 WS5S 1796 1859 .76 .81 .73 7 WS5S 1861 1989 .71 .72 .79 .83 .80 8 WS5W 1778 1989 .47 .76 .72 .70 .85 .84 .81 .81 9 WS5N 1784 1989 .54 .58 .46 .62 .77 .75 .74 .78 10 WS11NE 1890 1989 .45 .48 .61 .53 11 WS12NE 1778 1989 .56 .82 .66 .57 .72 .83 .80 .68 12 WS12SW 1772 1871 .70 .77 .79 .64 13 WS12SW 1881 1989 .75 .71 .68 .55 14 WS14NW 1837 1989 .39 .40 .51 .59 .63 .56 15 WS15SE 1840 1989 .64 .65 .74 .81 .80 .74 16 WS15NW 1811 1896 .49 .44 .61 17 WS15NW 1898 1989 .72 .73 .65 .60 18 WS17SW 1853 1989 .65 .63 .68 .68 .66 19 WS17NW 1837 1989 .82 .79 .73 .65 .74 .70 20 WS21SW 1727 1896 .58 .62 .65 .55 .57 21 WS21SW 1898 1989 .73 .72 .71 .69 22 WS23NE 1859 1989 .72 .89 .83 .71 .74 23 WS24SE 1795 1969 .43 .66 .77 .78 .85 .80 .76 24 WSYAN 1780 1988 .42 .77 .77 .77 .66 .50 .60 .51 Av segment correlation .64 .56 .70 .65 .68 .70 .69 .70 .66 PART 7: DESCRIPTIVE STATISTICS: Water Supply 12:41 Tue 11 Jul 2006 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 WS1S 1843 1989 147 6 0 .680 .42 1.33 .249 .787 .320 2.67 .472 -.051 2 2 WS1N 1827 1989 163 6 0 .627 .62 2.01 .378 .783 .303 2.57 .439 -.035 4 3 WS2SW 1775 1989 215 8 0 .619 .86 3.27 .502 .721 .285 2.69 .434 .009 1 4 WS4W 1848 1989 142 6 0 .651 .60 1.25 .230 .738 .242 2.36 .313 -.041 1 5 WS4S 1869 1968 100 4 0 .662 .61 1.45 .238 .650 .283 2.60 .455 .057 1 6 WS5S 1796 1859 64 3 0 .692 1.00 3.37 .562 .630 .308 2.89 .609 .006 1 7 WS5S 1861 1989 129 5 0 .778 .65 1.44 .277 .578 .350 2.71 .452 .039 1 8 WS5W 1778 1989 212 8 0 .718 .71 1.86 .378 .686 .363 2.60 .395 .005 3 9 WS5N 1784 1989 206 8 0 .648 .76 3.11 .527 .745 .355 2.79 .463 .013 1 10 WS11NE 1890 1989 100 4 0 .491 1.20 2.78 .441 .378 .338 2.72 .440 -.026 1 11 WS12NE 1778 1989 212 8 0 .676 .63 2.97 .532 .849 .322 2.68 .409 .019 1 12 WS12SW 1772 1871 100 4 0 .667 .70 2.48 .469 .849 .281 2.84 .560 .071 1 13 WS12SW 1881 1989 109 4 0 .640 .63 1.53 .274 .465 .336 2.70 .465 .010 1 14 WS14NW 1837 1989 153 6 0 .509 1.16 3.59 .708 .741 .319 2.70 .407 -.021 1 15 WS15SE 1840 1989 150 6 0 .726 1.18 2.55 .448 .685 .254 2.64 .449 .070 2 16 WS15NW 1811 1896 86 3 0 .575 1.39 6.02 1.005 .766 .343 2.51 .428 -.023 2 17 WS15NW 1898 1989 92 4 0 .628 1.02 2.22 .434 .743 .259 2.71 .545 .046 1 18 WS17SW 1853 1989 137 5 0 .658 1.15 3.48 .453 .483 .328 2.74 .503 .011 1 19 WS17NW 1837 1989 153 6 0 .738 1.09 2.54 .406 .560 .297 2.72 .515 .077 1 20 WS21SW 1727 1896 170 5 0 .571 .74 2.02 .426 .733 .304 2.59 .396 .006 1 21 WS21SW 1898 1989 92 4 0 .720 .52 1.07 .188 .436 .315 2.69 .537 .048 1 22 WS23NE 1859 1989 131 5 0 .737 .98 3.15 .455 .630 .294 2.71 .435 .008 1 23 WS24SE 1795 1969 175 7 0 .673 .99 2.71 .461 .607 .335 2.56 .358 .023 1 24 WSYAN 1780 1988 209 8 0 .592 .45 1.30 .253 .772 .303 2.58 .422 .025 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3447 133 0 .654 .81 6.02 .425 .683 .311 2.89 .443 .013