Chronology file name : AK043.CRN Measurement file name : AK043.RWL Date checked : 10MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1713 Ending year : 1997 Principal investigators: Andrea Lloyd Site name : Twelvemile Summit treeline Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : 6522 Longitude : -14556 Elevation : 945M Series intercorrelation: 0.324 Avg mean sensitivity : 0.271 Avg standard deviation : 0.169 Avg autocorrelation : 0.852 Number dated series : 12 Segment length tested : 50 Number problem segments: 41 Pct problem segments : 48.24 PART 5: CORRELATION OF SERIES BY SEGMENTS: ak043.rwl 13:41 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 TW11-01 1847 1996 .08B .08B .14B .42 .50 .57 2 TW13-11A 1854 1996 .06B .07B .14B .27A .43 3 TW14-02B 1844 1997 .04B .06B-.04B .06B .04B .05B 4 TW15-01 1862 1996 .39 .36 .53 .63 .57 5 TW15-02 1846 1997 .13B .17B .34 .44 .66 .54 6 TW15-03 1852 1996 .04B .35 .51 .50 .61 7 TW15-04 1834 1996 .53 .42 .30B .52 .69 .63 8 TW15-05 1852 1996 .18B .15B .38 .59 .59 9 TW15-06A 1741 1996 .24B .09B .46 .51 .45 .56 .51 .51 .69 .60 10 TW15-06B 1713 1996 .09B .02B .01B .34 .55 .57 .67 .51 .57 .73 .58 11 TW17-01A 1760 1996 -.14B-.13B-.07B .00B-.01B-.11B-.06B-.12B-.03B 12 TW17-12C 1719 1996 .08B .02B-.09B .16A .30A .15B .16B .22B .46 .71 .67 Av segment correlation .08 .09 -.03 .21 .32 .24 .23 .23 .37 .49 .48 PART 7: DESCRIPTIVE STATISTICS: ak043.rwl 13:41 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 TW11-01 1847 1996 150 6 3 .370 .19 .83 .109 .687 .301 3.02 .407 -.029 1 2 TW13-11A 1854 1996 143 5 4 .195 .36 1.04 .231 .866 .250 2.63 .426 -.011 1 3 TW14-02B 1844 1997 154 6 6 .030 .48 1.10 .258 .823 .249 2.92 .443 .090 2 4 TW15-01 1862 1996 135 5 0 .529 .38 .82 .244 .889 .275 2.65 .353 -.052 1 5 TW15-02 1846 1997 152 6 2 .382 .19 .63 .124 .840 .302 2.60 .398 -.042 1 6 TW15-03 1852 1996 145 5 1 .422 .27 .86 .159 .798 .316 2.81 .418 -.024 4 7 TW15-04 1834 1996 163 6 1 .563 .27 .72 .143 .845 .244 2.60 .403 -.014 2 8 TW15-05 1852 1996 145 5 2 .387 .19 .59 .153 .893 .294 2.65 .417 .042 1 9 TW15-06A 1741 1996 256 10 2 .483 .29 .85 .232 .941 .265 2.50 .303 .008 1 10 TW15-06B 1713 1996 284 11 3 .408 .27 .97 .243 .946 .269 2.69 .377 .000 1 11 TW17-01A 1760 1996 237 9 9 -.057 .11 .32 .063 .840 .263 2.69 .450 -.041 1 12 TW17-12C 1719 1996 278 11 8 .267 .11 .94 .095 .779 .251 2.96 .354 .012 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2242 85 41 .324 .25 1.10 .169 .852 .271 3.02 .390 -.004