Chisana Air, Alaska, USA - AK076 Additional Site Information Gordon Jacoby, Nicole Davi, and Greg Wiles Purpose of Collection: Climate analysis Measurement type: Total ring width 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 : AK076.CRN Measurement file name : AK076.RWL Date checked : 12APR06 Checked by : B. Bauer Beginning year : 1415 Ending year : 1993 Principal investigators: Gordon Jacoby Nicole Davi Greg Wiles Site name : Chisana Air Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6205 Longitude : -14201 Elevation : 1006M Series intercorrelation: 0.576 Avg mean sensitivity : 0.195 Avg standard deviation : 0.269 Avg autocorrelation : 0.917 Number dated series : 9 Segment length tested : 50 Number problem segments: 6 Pct problem segments : 5.71 PART 5: CORRELATION OF SERIES BY SEGMENTS: Chisana Air 06:57 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 CA1E 1738 1993 .35 .39 .37 .50 .55 .53 .44 .38 .43 .54 2 CA2N 1756 1993 .40 .54 .50 .35B .25B .33 .44 .37B .29A 3 CA3S 1600 1944 .70 .62 .64 .75 .69 .71 .64 .60 .75 .76 .69 .54 .62 4 CA3N 1599 1993 .78 .79 .82 .82 .71 .67 .65 .68 .68 .64 .68 .64 .56 .68 .72 .60 5 CA3SW1 1645 1993 .58 .61 .73 .74 .78 .72 .61 .74 .81 .36 .23A .66 .71 .54 6 CA4SE 1626 1993 .68 .83 .68 .59 .59 .61 .60 .67 .60 .39 .47 .50 .52 .43 7 CA4NW 1626 1915 .81 .74 .64 .68 .71 .71 .56 .54 .54 .47 .41 8 CA4NW 1924 1993 .47 .53 .31A 9 CA5N 1415 1969 .56 .55 .66 .64 .47 .46 .49 .59 .55 .62 .65 .49 .48 .56 .56 Av segment correlation .67 .68 .70 .71 .66 .64 .61 .59 .56 .62 .62 .48 .43 .54 .55 .45 PART 7: DESCRIPTIVE STATISTICS: Chisana Air 06:57 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 CA1E 1738 1993 256 10 0 .447 .51 1.27 .243 .844 .196 2.51 .343 -.031 2 2 CA2N 1756 1993 238 9 4 .352 .37 1.45 .243 .920 .183 2.66 .362 -.044 1 3 CA3S 1600 1944 345 13 0 .665 .30 2.09 .379 .945 .219 2.90 .416 -.022 1 4 CA3N 1599 1993 395 16 0 .698 .30 1.48 .313 .964 .207 2.61 .306 -.010 1 5 CA3SW1 1645 1993 349 14 1 .601 .40 1.76 .423 .968 .206 2.71 .411 -.018 1 6 CA4SE 1626 1993 368 14 0 .585 .40 .99 .186 .905 .168 2.46 .249 -.052 1 7 CA4NW 1626 1915 290 11 0 .653 .38 .99 .197 .898 .189 2.45 .283 -.037 1 8 CA4NW 1924 1993 70 3 1 .339 .66 1.36 .292 .859 .184 2.69 .438 -.064 1 9 CA5N 1415 1969 555 15 0 .550 .32 1.57 .185 .890 .191 2.64 .356 -.030 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2866 105 6 .576 .37 2.09 .269 .917 .195 2.90 .343 -.030