Turnagain Pass, Alaska - AK027 Additional Site Information Gordon C. Jacoby, Rosanne D. D'Arrigo, Brendan M. Buckley 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 : AK027.CRN Measurement file name : AK027.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1709 Ending year : 1990 Principal investigators: Gordon C. Jacoby, Rosanne D. D'Arrigo, Brendan M. Buckley Site name : Turnagain Pass Site location : Alaska Species information : TSME MOUNTAIN HEMLOCK Latitude : 6049 Longitude : -14910 Elevation : 400M Series intercorrelation: 0.593 Avg mean sensitivity : 0.271 Avg standard deviation : 0.255 Avg autocorrelation : 0.680 Number dated series : 37 Segment length tested : 50 Number problem segments: 7 Pct problem segments : 3.52 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak027.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 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TP2E 1775 1878 .72 .68 .55 .58 2 TP2E 1880 1990 .43 .65 .70 .73 3 TP4NE 1850 1990 .51 .65 .68 .74 .62 4 TP4N 1802 1887 .53 .48 .47 5 TP4N 1889 1990 .57 .63 .58 .55 6 TP32W 1725 1990 .32A .62 .50 .44 .57 .63 .25B .28A .60 .68 7 TP35SE 1769 1990 .56 .68 .68 .67 .70 .65 .67 .62 .66 8 TP35NW 1776 1990 .70 .63 .54 .66 .51 .42 .61 .52 9 TP36SW 1783 1882 .62 .63 .61 .68 10 TP36SW 1884 1990 .23B .65 .59 .59 11 TP37N 1839 1990 .62 .49 .45 .66 .83 .79 12 TP51N 1789 1990 .68 .59 .60 .65 .65 .73 .70 .57 13 TP53N 1887 1990 .69 .76 .62 .63 14 TP55S 1738 1990 .41 .56 .57 .55 .51 .45 .35 .50 .64 .67 15 TP56W 1734 1764 .35 16 TP56W 1765 1862 .51 .54 .45 .41 17 TP56W 1863 1878 .21B 18 TP56W 1881 1990 .46 .61 .59 .59 19 TP61N 1742 1990 .86 .83 .74 .70 .63 .52 .65 .79 .74 .75 20 TP61W 1716 1990 .45B .44 .70 .71 .72 .65 .71 .65 .72 .80 .78 21 TP62E 1735 1943 .72 .78 .76 .58 .61 .60 .51 .63 22 TP62E 1945 1954 .71 23 TP62E 1956 1990 .45 24 TP64N 1713 1990 .43 .46 .77 .76 .73 .55 .68 .76 .64 .64 .72 25 TP65SE 1725 1990 .50 .55 .61 .71 .73 .68 .61 .61 .75 .67 26 TP65E 1724 1755 .52 27 TP65E 1757 1844 .38 .57 .54 28 TP65E 1846 1990 .63 .63 .82 .70 .64 .58 29 TP65W 1709 1742 .20B 30 TP65W 1743 1990 .83 .85 .80 .65 .62 .80 .77 .61 .63 .71 31 TP66NW 1881 1936 .59 .62 32 TP66NW 1939 1990 .79 .77 33 TP67S 1722 1990 .53 .57 .52 .61 .65 .54 .62 .56 .61 .80 .80 34 TP71S 1770 1798 .43 35 TP71S 1799 1990 .39 .36 .44 .72 .48 .59 .70 .70 36 TPNO1 1884 1990 .57 .67 .57 .60 37 TPSS 1871 1990 .64 .63 .52 .49 .55 Av segment correlation .43 .55 .62 .65 .60 .58 .60 .56 .62 .67 .65 PART 7: DESCRIPTIVE STATISTICS: ak027.rwl 13:36 Thu 10 Mar 2005 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 TP2E 1775 1878 104 4 0 .647 .70 1.66 .303 .740 .255 2.57 .494 .032 1 2 TP2E 1880 1990 111 4 0 .618 .64 1.49 .239 .693 .223 2.74 .509 -.082 1 3 TP4NE 1850 1990 141 5 0 .596 .90 1.60 .304 .738 .195 2.65 .442 .049 1 4 TP4N 1802 1887 86 3 0 .506 .63 1.21 .195 .585 .223 2.63 .444 -.096 1 5 TP4N 1889 1990 102 4 0 .560 .94 1.61 .269 .541 .214 2.68 .522 -.026 3 6 TP32W 1725 1990 266 10 3 .462 .66 2.11 .281 .796 .215 2.64 .322 -.016 1 7 TP35SE 1769 1990 222 9 0 .635 .35 1.02 .165 .730 .284 2.52 .326 -.048 1 8 TP35NW 1776 1990 215 8 0 .559 .74 1.64 .266 .723 .211 2.73 .339 .000 4 9 TP36SW 1783 1882 100 4 0 .646 .58 1.54 .259 .762 .264 2.55 .401 -.036 2 10 TP36SW 1884 1990 107 4 1 .457 .87 2.79 .497 .768 .274 2.72 .511 -.060 4 11 TP37N 1839 1990 152 6 0 .647 .86 2.40 .424 .760 .285 2.43 .356 .054 1 12 TP51N 1789 1990 202 8 0 .625 .63 1.56 .235 .711 .225 2.54 .336 -.050 3 13 TP53N 1887 1990 104 4 0 .651 .51 1.20 .173 .437 .278 2.66 .378 -.038 2 14 TP55S 1738 1990 253 10 0 .508 .38 .93 .152 .631 .290 2.56 .324 -.008 1 15 TP56W 1734 1764 31 1 0 .349 .33 .87 .151 .601 .305 2.88 .665 -.002 1 16 TP56W 1765 1862 98 4 0 .463 .35 .92 .179 .705 .315 2.60 .460 -.034 1 17 TP56W 1863 1878 16 1 1 .213 .26 .56 .133 .696 .304 2.93 .681 -.006 1 18 TP56W 1881 1990 110 4 0 .534 .54 1.07 .238 .758 .270 2.58 .515 .015 1 19 TP61N 1742 1990 249 10 0 .703 .52 1.30 .259 .800 .268 2.67 .384 -.039 1 20 TP61W 1716 1990 275 11 1 .648 .61 1.95 .272 .729 .246 2.79 .315 -.004 1 21 TP62E 1735 1943 209 8 0 .649 .54 1.66 .284 .753 .307 2.76 .388 .001 1 22 TP62E 1945 1954 10 1 0 .714 .27 .47 .102 .324 .378 2.59 .835 -.095 1 23 TP62E 1956 1990 35 1 0 .452 .39 .86 .180 .501 .383 2.79 .589 .056 1 24 TP64N 1713 1990 278 11 0 .641 .58 1.30 .243 .609 .276 2.50 .262 -.032 1 25 TP65SE 1725 1990 266 10 0 .640 .56 1.72 .238 .515 .314 2.56 .312 -.040 1 26 TP65E 1724 1755 32 1 0 .523 .32 .70 .122 .600 .257 2.81 .579 -.018 1 27 TP65E 1757 1844 88 3 0 .447 .61 1.43 .256 .724 .245 2.69 .452 -.036 1 28 TP65E 1846 1990 145 6 0 .630 .49 .94 .172 .504 .289 2.63 .382 -.046 2 29 TP65W 1709 1742 34 1 1 .203 .62 1.16 .206 .015 .346 2.79 .615 .052 1 30 TP65W 1743 1990 248 10 0 .711 .88 2.87 .350 .609 .243 2.85 .385 -.063 1 31 TP66NW 1881 1936 56 2 0 .583 .52 1.41 .289 .774 .273 2.77 .482 .058 1 32 TP66NW 1939 1990 52 2 0 .769 .18 .51 .108 .640 .409 2.79 .682 -.006 1 33 TP67S 1722 1990 269 11 0 .607 .47 1.23 .213 .716 .286 2.63 .344 -.001 1 34 TP71S 1770 1798 29 1 0 .425 .50 1.30 .279 .417 .524 2.57 .667 -.100 1 35 TP71S 1799 1990 192 8 0 .539 .45 1.31 .273 .804 .376 2.57 .382 -.044 4 36 TPNO1 1884 1990 107 4 0 .598 .39 1.02 .201 .652 .329 2.72 .622 -.049 1 37 TPSS 1871 1990 120 5 0 .544 1.24 2.91 .397 .688 .186 2.70 .356 -.011 4 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5114 199 7 .593 .60 2.91 .255 .680 .271 2.93 .391 -.022