Gordon's Cat, Alaska, USA - AK065 Additional Site Information Rosanne D'Arrigo, Erika Mashig, David Frank, Rob Wilson and Gordon Jacoby. 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: D'Arrigo, R., E. Mashig, D. Frank, R. Wilson and G. Jacoby. 2005. Temperature Variability over the past millennium inferred from northwestern Alaska tree rings. Climate Dynamics 24: 227-236. doi:10.1007/s00382-004-0502-1. COFECHA output: Chronology file name : AK065.CRN Measurement file name : AK065.RWL Date checked : 13JAN06 Checked by : B. Bauer Beginning year : 1400 Ending year : 2002 Principal investigators: R. D'Arrigo E. Mashig D. Frank R. Wilson G. Jacoby Site name : Gordon's Cat Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6512 Longitude : -16212 Elevation : 168M Series intercorrelation: 0.571 Avg mean sensitivity : 0.202 Avg standard deviation : 0.181 Avg autocorrelation : 0.836 Number dated series : 20 Segment length tested : 50 Number problem segments: 23 Pct problem segments : 10.50 PART 5: CORRELATION OF SERIES BY SEGMENTS: Gordon's Cat 12:12 Fri 13 Jan 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 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 GC02a 1734 1996 .56 .32A .45 .49 .32A .31A .54 2 GC02b 1734 1983 .40 .27A .32A .41 .30B .28A .49 3 GC01a 1785 1979 .68 .73 .73 .62 .66 4 GC01b 1772 2002 .70 .70 .60 .50 .47 .60 5 GC03a 1400 1840 .41 .30A .46 .52 .73 .83 .78 .62 .55 .58 .50 .36 .46 .51 .61 .72 .65 6 GC03b 1400 1850 .41 .30A .46 .52 .73 .83 .78 .62 .54 .61 .47 .31A .45 .46 .33A .43 .59 .56 7 GC04a 1760 2002 .64 .75 .58 .54 .65 .75 8 GC04b 1749 2002 .53 .52 .62 .53 .53 .76 .72 9 GC05a 1696 1987 .74 .70 .67 .58 .58 .60 .56 .69 .66 10 GC05b 1630 2002 .43 .32A .52 .81 .79 .73 .74 .71 .67 .54 .53 11 GC05c 1696 1987 .75 .73 .65 .63 .59 .50 .33 .66 .81 12 GC06a 1801 2002 .25A .54 .75 .74 13 GC06b 1801 2002 .55 .59 .66 .80 14 GC07a 1750 2002 .59 .65 .47 .45 .78 .72 15 GC07b 1648 2002 .21A .17A .13B .43 .55 .51 .53 .53 .56 .82 .88 16 GC10b 1741 1979 .63 .64 .75 .72 .64 .77 .80 17 GC22 1796 2002 .70 .70 .62 .67 .69 18 GCNN1a 1698 1916 .35 .36 .43 .65 .61 .42 .42 .76 .75 19 GCNN1b 1775 1991 .50 .31A .53 .78 .81 20 GCNN2 1799 2001 .61 .61 .66 .70 .63 Av segment correlation .41 .30 .46 .52 .73 .83 .78 .62 .55 .46 .36 .45 .56 .56 .55 .61 .55 .53 .65 .70 PART 5: CORRELATION OF SERIES BY SEGMENTS: Gordon's Cat 12:12 Fri 13 Jan 2006 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 GC02a 1734 1996 .67 .54 .26A 2 GC02b 1734 1983 .72 .72 .69 3 GC01a 1785 1979 .71 .62 .57 4 GC01b 1772 2002 .74 .60 .41 .42 7 GC04a 1760 2002 .77 .58 .51 .52 8 GC04b 1749 2002 .57 .48 .49 .50 9 GC05a 1696 1987 .47 .47 .43 10 GC05b 1630 2002 .59 .47 .35 .39 11 GC05c 1696 1987 .70 .51 .47 12 GC06a 1801 2002 .45 .31A .58 .61 13 GC06b 1801 2002 .81 .53 .53 .51 14 GC07a 1750 2002 .57 .60 .63 .61 15 GC07b 1648 2002 .83 .66 .58 .58 16 GC10b 1741 1979 .75 .61 .66 17 GC22 1796 2002 .62 .50 .56 .54 19 GCNN1b 1775 1991 .64 .22B-.01B 20 GCNN2 1799 2001 .53 .37 .02B .02B Av segment correlation .66 .52 .46 .47 PART 7: DESCRIPTIVE STATISTICS: Gordon's Cat 12:12 Fri 13 Jan 2006 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- 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 GC02a 1734 1996 263 10 4 .436 .29 1.09 .148 .788 .235 2.76 .436 -.002 1 2 GC02b 1734 1983 250 10 4 .456 .23 .92 .127 .812 .216 2.91 .411 -.040 1 3 GC01a 1785 1979 195 8 0 .629 .55 1.06 .160 .652 .181 2.74 .420 .024 1 4 GC01b 1772 2002 231 10 0 .590 .42 1.03 .184 .835 .193 2.67 .415 -.084 1 5 GC03a 1400 1840 441 17 1 .562 .21 1.19 .148 .828 .213 2.78 .343 -.038 1 6 GC03b 1400 1850 451 18 3 .539 .20 .81 .096 .793 .228 2.70 .374 -.020 1 7 GC04a 1760 2002 243 10 0 .633 .36 .81 .171 .878 .182 2.58 .350 .002 2 8 GC04b 1749 2002 254 11 0 .585 .47 1.23 .270 .869 .195 2.66 .358 -.012 1 9 GC05a 1696 1987 292 12 0 .596 .31 1.13 .215 .914 .207 2.61 .357 -.028 1 10 GC05b 1630 2002 373 15 1 .567 .32 1.28 .192 .838 .226 2.80 .386 -.011 1 11 GC05c 1696 1987 292 12 0 .617 .32 1.16 .224 .924 .194 2.60 .332 -.050 4 12 GC06a 1801 2002 202 8 2 .532 .40 1.00 .169 .816 .192 2.49 .327 -.066 1 13 GC06b 1801 2002 202 8 0 .652 .51 1.00 .173 .782 .174 2.52 .387 -.064 1 14 GC07a 1750 2002 253 10 0 .602 .33 1.27 .205 .899 .191 2.71 .356 -.014 1 15 GC07b 1648 2002 355 15 3 .579 .38 1.20 .235 .924 .181 2.55 .263 -.037 3 16 GC10b 1741 1979 239 10 0 .716 .59 1.83 .259 .808 .204 2.67 .304 -.059 3 17 GC22 1796 2002 207 9 0 .610 .46 .99 .207 .870 .171 2.64 .398 -.001 2 18 GCNN1a 1698 1916 219 9 0 .559 .47 1.30 .172 .769 .183 2.55 .352 -.083 1 19 GCNN1b 1775 1991 217 8 3 .531 .36 .76 .190 .887 .210 2.66 .447 -.068 2 20 GCNN2 1799 2001 203 9 2 .463 .32 .73 .130 .755 .203 2.71 .344 -.024 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 5382 219 23 .571 .36 1.83 .181 .836 .202 2.91 .365 -.033