Whittier Canal, Alaska - AK028 Additional Site Information Greg Wiles, 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: Villalba, R., D'Arrigo, Cook, E.R., Wiles, G.C. and Jacoby, G.C., 1998, Decadal-scale variability along the extra-tropical western coast of the Americas over the past centuries inferred from tree-ring records: Interhemispheric Paleoclimates of the Americas, Pole-Equator-Pole transect 1 (PEP-1) PAGES-IGBP, Merida, Venezuela March 16-20, 1998. COFECHA output: Chronology file name : AK028.CRN Measurement file name : AK028.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1412 Ending year : 1991 Principal investigators: Greg Wiles, Parker E. Calkin Site name : Wittier Canal Site location : Alaska Species information : TSME MOUNTAIN HEMLOCK Latitude : 6050 Longitude : -14835 Elevation : 300M Series intercorrelation: 0.541 Avg mean sensitivity : 0.272 Avg standard deviation : 0.242 Avg autocorrelation : 0.770 Number dated series : 46 Segment length tested : 50 Number problem segments: 40 Pct problem segments : 6.84 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak028.rwl 13:36 Thu 10 Mar 2005 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 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WC01SW 1505 1991 .56 .42 .51 .45 .34 .48 .63 .54 .43 .55 .58 .51 .56 .43 .31A .38 .61 2 WC02NE 1528 1985 .59 .59 .39 .52 .59 .64 .75 .49 .40 .43 .34 .32B .35 .47 .61 .73 3 WC03NW 1783 1991 .36 .64 .75 .68 .50 .59 4 WC06SE 1753 1991 .58 .56 .70 .67 .71 .62 .56 5 WC06NE 1736 1991 .34 .46 .57 .48 .46 .64 .51 .47 6 WC07SW 1553 1991 .67 .66 .50 .54 .63 .51 .31A .35B .54 .67 .64 .58 .39 .40 .60 7 WC07SE 1595 1991 .47 .57 .64 .53 .60 .70 .60 .65 .60 .46 .40 .44 .62 .62 8 WC08NW 1727 1991 .58 .67 .57 .60 .66 .70 .51 .51 9 WC09SW 1771 1991 .42 .47 .63 .70 .55 .35 .50 10 WC10NE 1757 1991 .55 .29B .37 .64 .65 .73 .73 11 WC11SE 1574 1972 .45 .44 .48 .75 .80 .82 .63 .39 .22B .21B .40 .48 .55 .56 .48 12 WC11NW 1546 1969 .60 .64 .67 .68 .71 .69 .69 .54 .39 .31A .32A .42 .47 .46 .45 .42 13 WC12NW 1730 1988 .47 .69 .73 .50 .53 .52 .55 .73 14 WC14NW 1725 1991 .49 .68 .62 .62 .49 .40 .52 .62 15 WC14N 1737 1991 .42 .47 .43 .47 .69 .64 .61 .67 16 WC16NW 1768 1991 .33 .48 .40 .36 .63 .61 .68 17 WC17NE 1584 1989 .62 .58 .48 .48 .55 .54 .45 .50 .55 .59 .60 .45B .36 .45 18 WC18NW 1773 1991 .45 .41 .43 .53 .43 .43 .65 19 WC19SE 1719 1989 .14B .22B .34B .47 .31A .54 .65 .58 .64 20 WC20SW 1780 1991 .43 .36 .28B .30B .42 .64 21 WC22SW 1768 1991 .29B .37 .43 .54 .51 .56 .63 22 WC23NE 1565 1673 .57 .53 .60 .50 23 WC23NE 1679 1926 .44 .63 .66 .61 .44 .44 .47 .43 .52 .50 24 WC24NW 1731 1991 .53 .27A .16B .48 .64 .60 .49 .59 25 WC27SE 1412 1700 .36B .45 .44 .60 .48 .41 .47 .52 .71 .54 .53 26 WC27SE 1702 1850 .72 .48 .40 .48 .41 .41 27 WC29NE 1530 1963 .34 .42 .47 .67 .61 .57 .50 .50 .58 .31B .18B .35 .52 .53 .58 .44 28 WC30SE 1511 1663 .77 .73 .66 .53 .57 .56 29 WC30SE 1670 1991 .34 .36B .61 .64 .55 .57 .45 .53 .67 .62 .51 30 WC30NW 1474 1991 .46 .50 .61 .73 .77 .62 .57 .50 .56 .74 .81 .63 .60 .64 .50 .58 .62 .58 .63 31 WC31NW 1582 1991 .57 .66 .65 .63 .73 .74 .67 .56 .45 .60 .69 .64 .62 .69 32 WC33NE 1510 1991 .75 .73 .72 .52 .63 .67 .61 .66 .68 .70 .45 .24B .37 .46 .65 .77 .76 33 WC33NW 1538 1991 .66 .68 .61 .72 .63 .61 .68 .64 .71 .40 .21B .37B .49 .68 .78 .85 34 WC35NE 1593 1988 .65 .55 .56 .62 .78 .69 .60 .49 .37 .49 .56 .62 .63 .59 35 WC37NS 1618 1991 .47 .45 .57 .65 .60 .68 .59 .53 .32B .32A .63 .55 .55 36 WC41NW 1717 1991 .48 .66 .68 .57 .48 .55 .63 .66 .75 37 WC43NW 1635 1991 .26B .43 .56 .78 .76 .65 .51 .51 .60 .61 .51 .52 38 WC44SW 1684 1798 .44 .61 .83 .56 39 WC44SW 1800 1987 .73 .61 .48 .53 .61 40 WC45SW 1536 1908 .59 .80 .69 .65 .58 .63 .68 .52 .20B .33 .57 .58 .54 .57 .48 41 WC47SE 1458 1929 .67 .56 .63 .59 .61 .57 .57 .64 .68 .78 .84 .84 .74 .54 .56 .71 .67 .76 .73 42 WC49SE 1545 1991 .51 .49 .40 .38 .55 .71 .77 .73 .58 .54 .42 .43B .50 .53 .42 .40 43 WC49SW 1570 1991 .38 .38 .54 .69 .69 .65 .49 .46 .55 .49 .46 .59 .62 .60 .50 44 WC49SW2 1657 1991 .79 .69 .62 .68 .64 .37 .34 .54 .45 .38 .49 45 WC49NE 1590 1991 .55 .61 .54 .66 .75 .71 .66 .63 .51 .49 .60 .52 .38 .39 46 WC51SE 1446 1908 .16B .25A .24B .26B .41 .71 .68 .64 .71 .55 .54 .58 .56 .51 .40 .48 .69 .70 .71 Av segment correlation .26 .46 .44 .60 .57 .59 .54 .57 .58 .61 .63 .60 .55 .51 .45 .48 .54 .56 .55 .59 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak028.rwl 13:36 Thu 10 Mar 2005 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 1925 1950 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WC01SW 1505 1991 .66 .62 2 WC02NE 1528 1985 .76 .61 3 WC03NW 1783 1991 .66 .63 4 WC06SE 1753 1991 .77 .75 5 WC06NE 1736 1991 .61 .57 6 WC07SW 1553 1991 .47 .43 7 WC07SE 1595 1991 .52 .43 8 WC08NW 1727 1991 .70 .64 9 WC09SW 1771 1991 .51 .52 10 WC10NE 1757 1991 .65 .55 11 WC11SE 1574 1972 .09B 12 WC11NW 1546 1969 .31A 13 WC12NW 1730 1988 .65 .56 14 WC14NW 1725 1991 .64 .55 15 WC14N 1737 1991 .73 .62 16 WC16NW 1768 1991 .78 .79 17 WC17NE 1584 1989 .54 .51 18 WC18NW 1773 1991 .77 .70 19 WC19SE 1719 1989 .54 .12B 20 WC20SW 1780 1991 .68 .57 21 WC22SW 1768 1991 .62 .49 24 WC24NW 1731 1991 .66 .48 27 WC29NE 1530 1963 .35 29 WC30SE 1670 1991 .45 .41 30 WC30NW 1474 1991 .64 .47 31 WC31NW 1582 1991 .78 .61 32 WC33NE 1510 1991 .70 .73 33 WC33NW 1538 1991 .71 .70 34 WC35NE 1593 1988 .21A .07B 35 WC37NS 1618 1991 .68 .57 36 WC41NW 1717 1991 .66 .72 37 WC43NW 1635 1991 .67 .59 39 WC44SW 1800 1987 .75 .83 42 WC49SE 1545 1991 .52 .63 43 WC49SW 1570 1991 .55 .55 44 WC49SW2 1657 1991 .56 .55 45 WC49NE 1590 1991 .61 .63 Av segment correlation .60 .57 PART 7: DESCRIPTIVE STATISTICS: ak028.rwl 13:36 Thu 10 Mar 2005 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 WC01SW 1505 1991 487 19 1 .499 .51 1.25 .248 .794 .267 2.66 .368 -.012 3 2 WC02NE 1528 1985 458 18 1 .506 .44 1.39 .236 .779 .284 2.53 .281 -.013 3 3 WC03NW 1783 1991 209 8 0 .578 .59 1.66 .277 .832 .226 2.75 .461 -.004 2 4 WC06SE 1753 1991 239 9 0 .648 .56 1.51 .217 .741 .218 2.65 .391 -.020 3 5 WC06NE 1736 1991 256 10 0 .488 .82 2.27 .338 .771 .229 2.64 .342 -.024 3 6 WC07SW 1553 1991 439 17 2 .516 .40 1.00 .167 .782 .242 2.50 .307 -.022 8 7 WC07SE 1595 1991 397 16 0 .531 .39 .98 .176 .796 .235 2.70 .395 -.028 2 8 WC08NW 1727 1991 265 10 0 .602 .55 1.26 .251 .711 .335 2.58 .345 .021 3 9 WC09SW 1771 1991 221 9 0 .528 .43 1.47 .330 .888 .255 2.69 .344 -.054 2 10 WC10NE 1757 1991 235 9 1 .537 1.15 3.86 .523 .728 .232 2.68 .344 .032 1 11 WC11SE 1574 1972 399 16 3 .481 .27 .88 .152 .838 .267 2.88 .407 .035 1 12 WC11NW 1546 1969 424 17 3 .497 .31 1.12 .185 .849 .260 2.85 .411 -.038 1 13 WC12NW 1730 1988 259 10 0 .555 .46 1.30 .240 .832 .244 2.54 .362 -.050 5 14 WC14NW 1725 1991 267 10 0 .545 .90 2.88 .372 .599 .286 2.87 .501 -.011 4 15 WC14N 1737 1991 255 10 0 .568 .79 4.88 .441 .703 .280 2.77 .395 -.026 7 16 WC16NW 1768 1991 224 9 0 .571 .68 1.56 .256 .734 .219 2.57 .422 .035 1 17 WC17NE 1584 1989 406 16 1 .519 .31 1.15 .197 .774 .325 2.87 .385 -.015 7 18 WC18NW 1773 1991 219 9 0 .535 .81 2.15 .426 .715 .299 2.82 .318 -.015 1 19 WC19SE 1719 1989 271 11 5 .392 .43 1.47 .278 .784 .324 2.63 .395 -.046 4 20 WC20SW 1780 1991 212 8 2 .431 .48 1.64 .259 .823 .265 2.63 .341 -.022 1 21 WC22SW 1768 1991 224 9 1 .514 .52 1.17 .193 .682 .241 2.62 .369 .025 1 22 WC23NE 1565 1673 109 4 0 .522 .50 1.42 .272 .747 .272 2.87 .557 -.053 2 23 WC23NE 1679 1926 248 10 0 .505 .38 1.18 .211 .789 .287 2.82 .432 -.036 2 24 WC24NW 1731 1991 261 10 2 .475 1.06 2.68 .589 .899 .179 2.66 .333 -.021 1 25 WC27SE 1412 1700 289 11 1 .453 .27 .70 .108 .719 .245 2.44 .249 -.046 2 26 WC27SE 1702 1850 149 6 0 .453 .24 .46 .080 .505 .272 2.66 .395 .001 3 27 WC29NE 1530 1963 434 17 2 .452 .39 1.76 .288 .869 .266 2.77 .402 -.048 3 28 WC30SE 1511 1663 153 6 0 .621 .39 .96 .195 .829 .224 2.55 .282 -.009 4 29 WC30SE 1670 1991 322 13 1 .550 .32 .85 .176 .831 .274 2.54 .284 .002 2 30 WC30NW 1474 1991 518 21 0 .605 .52 1.75 .273 .800 .258 2.72 .321 .001 4 31 WC31NW 1582 1991 410 16 0 .625 .33 .92 .177 .854 .233 2.55 .342 .033 8 32 WC33NE 1510 1991 482 19 1 .616 .49 1.28 .183 .672 .248 2.46 .293 -.013 1 33 WC33NW 1538 1991 454 18 2 .622 .50 1.69 .199 .699 .249 2.61 .316 .002 1 34 WC35NE 1593 1988 396 16 2 .488 .43 1.07 .200 .798 .241 2.60 .316 -.013 7 35 WC37NS 1618 1991 374 15 2 .521 .33 .85 .150 .523 .355 2.77 .389 -.037 3 36 WC41NW 1717 1991 275 11 0 .626 .69 3.44 .455 .800 .334 2.74 .395 -.001 1 37 WC43NW 1635 1991 357 14 1 .561 .40 1.02 .166 .716 .278 2.53 .325 -.003 6 38 WC44SW 1684 1798 115 4 0 .563 .96 3.09 .663 .855 .281 2.48 .396 .025 3 39 WC44SW 1800 1987 188 7 0 .638 .60 1.44 .260 .630 .320 2.57 .386 -.011 4 40 WC45SW 1536 1908 373 15 1 .541 .34 1.44 .211 .858 .273 2.71 .384 .000 1 41 WC47SE 1458 1929 472 19 0 .653 .33 .88 .142 .725 .262 2.56 .350 -.018 4 42 WC49SE 1545 1991 447 18 1 .543 .29 .76 .151 .806 .292 2.66 .261 -.030 1 43 WC49SW 1570 1991 422 17 0 .556 .21 .78 .117 .767 .344 2.76 .413 -.007 6 44 WC49SW2 1657 1991 335 13 0 .550 .68 1.85 .345 .776 .290 2.66 .407 .008 4 45 WC49NE 1590 1991 402 16 0 .578 .60 2.09 .311 .798 .279 2.80 .366 -.011 3 46 WC51SE 1446 1908 463 19 4 .474 .37 1.38 .221 .803 .348 2.54 .305 -.041 4 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 14814 585 40 .541 .48 4.88 .242 .770 .272 2.88 .358 -.013