Cordova Eyak Mountain, Alaska - AK020 Additional Site Information 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 : AK020.CRN Measurement file name : AK020.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1365 Ending year : 1992 Principal investigators: Greg Wiles, Parker E. Calkin Site name : Cordova Eyak Mountain Site location : Alaska Species information : TSME MOUNTAIN HEMLOCK Latitude : 6036 Longitude : -14540 Elevation : 430M Series intercorrelation: 0.705 Avg mean sensitivity : 0.326 Avg standard deviation : 0.276 Avg autocorrelation : 0.689 Number dated series : 31 Segment length tested : 50 Number problem segments: 9 Pct problem segments : 2.87 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak020.rwl 13:34 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 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 CV01SE 1645 1992 .73 .76 .84 .72 .64 .66 .56 .56 .64 .75 .79 .57 .57 .74 2 CV02NW 1792 1992 .63 .66 .65 .53 .59 .49 .58 .73 3 CVO5SW 1638 1992 .50 .74 .46 .39 .81 .70 .53 .72 .74 .74 .83 .76 .79 .79 4 CV06SE 1523 1886 .62 .66 .83 .78 .64 .67 .82 .87 .86 .84 .79 .68 .69 .85 .71 5 CV06SW 1503 1992 .71 .76 .88 .90 .84 .83 .85 .84 .82 .85 .79 .73 .81 .88 .88 .86 .72 .60 .64 6 CV07NW 1498 1724 .69 .71 .65 .78 .77 .72 .74 .74 .42B 7 CV07NW 1726 1875 .71 .71 .62 .75 .81 .80 8 CV07NE 1484 1992 .42 .72 .80 .87 .89 .91 .90 .87 .86 .82 .85 .72 .70 .84 .83 .82 .85 .86 .82 .81 9 CV14SE 1672 1900 .73 .79 .88 .86 .80 .65 .70 .83 .35 .33 10 CV14SW 1518 1871 .38 .43 .68 .64 .63 .69 .76 .88 .92 .85 .72 .71 .80 .83 11 CV16NE 1900 1992 .82 .86 .83 12 CV17NE 1684 1853 .66 .76 .76 .65 .60 .64 .61 13 CV18NN 1695 1875 .70 .71 .68 .69 .57 .62 .74 .72 14 CV18NN 1910 1992 .56 .69 .69 15 CV19NE 1593 1992 .77 .80 .79 .84 .90 .69 .67 .81 .73 .74 .79 .85 .84 .75 .80 .80 16 CV21NE 1365 1992 .31A .60 .77 .85 .83 .70 .69 .74 .82 .78 .73 .74 .74 .80 .81 .67 .77 .87 .80 .78 17 CV21SW 1900 1992 .82 .75 .76 18 CV26NW 1508 1992 .52 .51 .73 .82 .80 .73 .79 .90 .87 .85 .73 .73 .81 .83 .88 .82 .72 .60 .64 19 CV40SS 1696 1922 .36B .38 .91 .88 .81 .82 .84 .86 .40B 20 CV40SW 1720 1992 .79 .83 .85 .78 .84 .85 .85 .83 .72 .83 .87 21 CV40NE 1600 1992 .16B .66 .84 .91 .88 .88 .86 .80 .84 .84 .81 .81 .80 .69 .65 22 CV41NW 1654 1832 .75 .84 .88 .82 .83 .70 .45B 23 CV41SN 1668 1836 .87 .88 .86 .84 .84 .76 .40B 24 CV45SE 1735 1943 .83 .78 .77 .69 .67 .79 .79 .63 25 CV45SS 1728 1947 .76 .65 .61 .68 .68 .70 .70 .55 26 CV46SW 1702 1929 .56 .67 .52 .51 .68 .63 .67 .68 .70 27 CV51NE 1850 1992 .54 .76 .55 .66 .67 28 CV52XX 1729 1875 .71 .67 .61 .49 .47 .47 29 CV53X3 1507 1619 .43 .54 .66 .71 30 CV60NW 1819 1991 .84 .85 .82 .79 .69 .34B .31B 31 CV61NW 1610 1857 .47 .52 .65 .83 .75 .63 .65 .62 .59 .54 Av segment correlation .47 .59 .64 .78 .79 .67 .70 .78 .76 .75 .78 .74 .67 .70 .75 .72 .73 .70 .69 .72 PART 7: DESCRIPTIVE STATISTICS: ak020.rwl 13:34 Thu 10 Mar 2005 Page 9 ------------------------------------------------------------------------------------------------------------------------------------ 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 CV01SE 1645 1992 348 14 0 .662 .87 2.46 .375 .755 .225 2.50 .277 -.011 1 2 CV02NW 1792 1992 201 8 0 .602 1.31 3.52 .620 .870 .176 2.54 .415 -.072 2 3 CVO5SW 1638 1992 355 14 0 .664 .55 1.99 .283 .681 .311 2.72 .457 -.044 1 4 CV06SE 1523 1886 364 15 0 .739 .78 1.89 .365 .748 .261 2.60 .340 -.002 1 5 CV06SW 1503 1992 490 19 0 .787 .59 2.17 .325 .718 .332 2.62 .343 -.032 1 6 CV07NW 1498 1724 227 9 1 .660 .84 1.63 .262 .523 .248 2.48 .292 -.002 1 7 CV07NW 1726 1875 150 6 0 .699 .52 1.33 .243 .749 .256 2.58 .352 .017 1 8 CV07NE 1484 1992 509 20 0 .788 .49 1.85 .294 .794 .287 2.57 .294 -.034 1 9 CV14SE 1672 1900 229 10 0 .671 .41 .85 .184 .676 .322 2.64 .382 .010 1 10 CV14SW 1518 1871 354 14 0 .711 .46 1.57 .232 .684 .335 2.59 .339 -.036 1 11 CV16NE 1900 1992 93 3 0 .822 .46 1.02 .173 .424 .362 2.55 .407 -.063 1 12 CV17NE 1684 1853 170 7 0 .652 .72 2.18 .398 .680 .344 2.86 .529 .001 1 13 CV18NN 1695 1875 181 8 0 .682 .62 1.95 .324 .690 .336 2.68 .444 -.009 2 14 CV18NN 1910 1992 83 3 0 .633 .46 1.13 .194 .600 .305 2.50 .329 .007 1 15 CV19NE 1593 1992 400 16 0 .774 .70 3.01 .388 .651 .344 2.69 .344 .002 1 16 CV21NE 1365 1992 628 20 1 .726 .38 1.24 .229 .674 .436 2.74 .386 -.019 1 17 CV21SW 1900 1992 93 3 0 .783 .45 1.25 .217 .600 .368 2.79 .581 -.014 1 18 CV26NW 1508 1992 485 19 0 .748 .50 1.61 .216 .720 .263 2.81 .417 -.023 1 19 CV40SS 1696 1922 227 9 2 .636 .40 1.01 .215 .610 .373 2.92 .502 .002 1 20 CV40SW 1720 1992 273 11 0 .824 .39 1.66 .217 .665 .359 2.63 .366 .004 1 21 CV40NE 1600 1992 393 15 1 .708 .33 1.25 .206 .637 .457 2.68 .354 -.004 1 22 CV41NW 1654 1832 179 7 1 .713 .42 1.20 .229 .637 .371 2.68 .390 -.023 1 23 CV41SN 1668 1836 169 7 1 .713 .44 1.12 .252 .643 .394 2.74 .447 -.026 1 24 CV45SE 1735 1943 209 8 0 .731 .35 .99 .202 .662 .387 2.82 .454 -.051 1 25 CV45SS 1728 1947 220 8 0 .666 .35 .96 .196 .660 .388 2.86 .428 -.034 1 26 CV46SW 1702 1929 228 9 0 .605 .46 1.28 .215 .742 .269 2.78 .394 -.057 2 27 CV51NE 1850 1992 143 5 0 .612 .60 3.13 .496 .848 .273 2.88 .369 -.039 1 28 CV52XX 1729 1875 147 6 0 .592 .41 1.22 .214 .666 .300 2.74 .435 -.057 2 29 CV53X3 1507 1619 113 4 0 .612 .48 1.11 .259 .639 .340 2.60 .446 -.059 1 30 CV60NW 1819 1991 173 7 2 .611 .40 1.37 .186 .541 .372 2.66 .342 -.009 1 31 CV61NW 1610 1857 248 10 0 .612 .61 1.34 .253 .743 .230 2.66 .427 .000 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8082 314 9 .705 .54 3.52 .276 .689 .326 2.92 .382 -.021