Caribou Creek, Alaska, USA - AK077 Additional Site Information Gordon Jacoby, Nicole Davi, and Greg Wiles Purpose of Collection: Climate analysis Measurement type: Ring Width and Maximum Density Location of core material: Tree-Ring Laboratory Lamont-Doherty Earth Observatory Palisades, New York 10964 Reference: Davi, N.K, Jacoby, G.C., Wiles, G.C., 2003. Boreal temperature variability inferred from maximum latewood density and tree-ring width data, Wrangell Mountain region, Alaska. Quaternary Research, Vol. 60, pp. 252-262. COFECHA output: Chronology file name : AK077.CRN Measurement file name : AK077.RWL Date checked : 12APR06 Checked by : B. Bauer Beginning year : 1559 Ending year : 1996 Principal investigators: Gordon Jacoby Nicole Davi Greg Wiles Site name : Caribou Creek Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6233 Longitude : -14317 Elevation : 994M Series intercorrelation: 0.529 Avg mean sensitivity : 0.167 Avg standard deviation : 0.191 Avg autocorrelation : 0.870 Number dated series : 24 Segment length tested : 50 Number problem segments: 9 Pct problem segments : 4.17 PART 5: CORRELATION OF SERIES BY SEGMENTS: Caribou Creek RW 09:48 Wed 12 Apr 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 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 C-1-3W.S 1750 1996 .45 .58 .66 .60 .57 .43 .33 .60 .68 2 C-1-4NW. 1820 1996 .57 .52 .65 .80 .75 .59 .62 3 C-2-2E.S 1800 1950 .62 .56 .58 .65 .69 .64 4 ZC-2-3N. 1628 1996 .46 .40 .63 .67 .66 .25B .29A .60 .47 .48 .62 .65 .70 .72 5 C-3-1N.S 1750 1970 .41 .24B .42 .54 .58 .55 .52 .61 6 C-3-2W.S 1830 1990 .45 .46 .67 .54 .38 .47 7 C-3-3S.S 1770 1990 .37 .41 .47 .41 .60 .63 .43 .51 .69 8 C-5-2E.S 1810 1996 .75 .50 .41 .58 .65 .51 .35 9 C-5-2NW. 1830 1996 .48 .53 .71 .64 .50 .54 10 C-5-2S.S 1830 1996 .39 .39 .41 .43 .59 .42 11 C-5-2SE. 1780 1996 .52 .55 .51 .66 .68 .71 .75 .66 12 C-5-2SW. 1840 1996 .49 .47 .61 .59 .50 .45 13 C-5-2W.S 1860 1995 .47 .63 .59 .49 .44 14 ZC-5-4W. 1708 1996 .65 .45 .37 .39 .53 .74 .57 .74 .69 .62 .57 15 ZC-5-4N. 1677 1996 .59 .58 .51 .54 .55 .63 .70 .59 .76 .65 .40 .45 16 C-5-5N'. 1850 1996 .51 .80 .68 .45 .55 17 C-5-5N.S 1820 1996 .64 .59 .48 .73 .72 .58 .68 18 ZC-5-6W. 1599 1995 .54 .54 .41 .54 .54 .42 .55 .51 .30A .38 .53 .58 .55 .54 .37 .44 19 ?C-5-7W. 1810 1996 .42 .40 .42 .57 .54 .49 .44 20 C-5-9E.S 1630 1996 .53 .56 .56 .58 .64 .48 .56 .72 .67 .59 .47 .37B .43 .48 21 C-5-9W.S 1730 1996 .57 .58 .57 .48 .36 .62 .76 .67 .55 .61 22 C-5-12W. 1559 1996 .62 .63 .47 .56 .70 .58 .61 .43 .23B .45 .51 .46 .45 .42 .48 .40 23 C-5-15NE 1774 1990 .63 .64 .56 .28A .30A .59 .70 .60 .36 24 C-5-15SW 1698 1978 .35 .39 .46 .55 .62 .47 .38 .26B .44 .63 .72 .70 Av segment correlation .58 .58 .46 .52 .56 .55 .56 .46 .45 .55 .50 .51 .62 .59 .54 .53 PART 7: DESCRIPTIVE STATISTICS: Caribou Creek RW 09:48 Wed 12 Apr 2006 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 C-1-3W.S 1750 1996 247 9 0 .526 .48 2.92 .353 .907 .173 3.02 .362 -.022 1 2 C-1-4NW. 1820 1996 177 7 0 .656 .44 .84 .115 .476 .217 2.61 .416 -.024 1 3 C-2-2E.S 1800 1950 151 6 0 .639 .51 1.03 .184 .753 .211 2.61 .396 -.011 1 4 ZC-2-3N. 1628 1996 369 14 2 .533 .41 1.13 .217 .902 .185 2.60 .342 .012 1 5 C-3-1N.S 1750 1970 221 8 1 .496 .30 .99 .180 .933 .170 2.57 .343 -.035 1 6 C-3-2W.S 1830 1990 161 6 0 .531 .62 1.19 .183 .707 .161 2.66 .479 .002 1 7 C-3-3S.S 1770 1990 221 9 0 .503 .39 .79 .132 .771 .195 2.54 .392 -.037 1 8 C-5-2E.S 1810 1996 187 7 0 .519 .50 1.30 .182 .885 .139 2.71 .420 -.028 1 9 C-5-2NW. 1830 1996 167 6 0 .587 .56 1.24 .207 .903 .126 2.69 .493 .015 1 10 C-5-2S.S 1830 1996 167 6 0 .420 .50 .98 .151 .792 .147 2.87 .462 .023 1 11 C-5-2SE. 1780 1996 217 8 0 .637 .43 1.11 .188 .903 .135 2.60 .328 .006 2 12 C-5-2SW. 1840 1996 157 6 0 .504 .59 1.73 .212 .880 .120 2.55 .365 -.026 1 13 C-5-2W.S 1860 1995 136 5 0 .459 .59 1.18 .189 .870 .122 2.64 .426 -.035 1 14 ZC-5-4W. 1708 1996 289 11 0 .507 .49 1.50 .344 .929 .180 2.80 .334 .067 1 15 ZC-5-4N. 1677 1996 320 12 0 .548 .46 1.33 .305 .936 .169 2.65 .306 .042 1 16 C-5-5N'. 1850 1996 147 5 0 .601 .40 .75 .128 .787 .175 2.62 .484 .005 1 17 C-5-5N.S 1820 1996 177 7 0 .640 .35 .74 .139 .900 .146 2.67 .456 .004 1 18 ZC-5-6W. 1599 1995 397 16 1 .488 .25 .63 .116 .915 .153 2.57 .328 -.002 1 19 ?C-5-7W. 1810 1996 187 7 0 .457 .43 1.57 .309 .955 .182 2.62 .350 -.020 2 20 C-5-9E.S 1630 1996 367 14 1 .516 .31 1.24 .222 .948 .183 2.60 .389 -.035 3 21 C-5-9W.S 1730 1996 267 10 0 .598 .34 1.20 .225 .925 .172 2.50 .297 -.018 2 22 C-5-12W. 1559 1996 438 16 1 .481 .16 .39 .073 .877 .183 2.60 .330 -.018 2 23 C-5-15NE 1774 1990 217 9 2 .478 .29 .70 .123 .882 .162 2.75 .445 -.005 1 24 C-5-15SW 1698 1978 281 12 1 .493 .36 .70 .103 .802 .138 2.58 .404 .026 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5665 216 9 .529 .40 2.92 .191 .870 .167 3.02 .376 -.003