Babe Creek Summit, Alaska - ak133 Additional Site Information J.M. Wolken, D.H. Mann, A.H. Lloyd Purpose of Collection: Ecology Cores Stored at: University of Alaska Fairbanks NOTES: Data include raw treering measurements of annual ring width for multiple treering samples collected from the Summit location of the Babe Creek toposequence. Dated series were visually and then statistically crossdated with the program COFECHA. COFECHA output: Chronology file name : AK133.CRN Measurement file name : AK133.RWL Date checked : 27AUG13 Checked by : B. Bauer Beginning year : 1908 Ending year : 2010 Principal investigators: J.M. Wolken D.H. Mann A.H. Lloyd Site name : Babe Creek Summit Site location : Alaska Species information : PCMA BLACK SPRUCE Latitude : 6500 Longitude : -14739 Elevation : 465M Series intercorrelation: 0.554 Avg mean sensitivity : 0.222 Avg standard deviation : 0.197 Avg autocorrelation : 0.711 Number dated series : 31 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 4.12 PART 5: CORRELATION OF SERIES BY SEGMENTS: Babe Creek Summit 14:47 Tue 27 Aug 2013 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 002201A 1932 2010 .61 .63 .65 2 002201B 1934 2010 .66 .64 .53 3 002202A 1908 2010 .64 .70 .52 .50 4 002202B 1919 2010 .67 .65 .41 .32B 5 002203A 1944 2010 .61 .55 .46 6 002203B 1930 2010 .65 .65 .66 7 002205B 1942 2010 .63 .52 .52 8 002206A 1943 2010 .57 .50 .48 9 002206B 1925 2010 .78 .66 .63 10 002207A 1916 2010 .58 .64 .57 .58 11 002207B 1923 2010 .56 .56 .71 .62 12 002208A 1960 2010 .34 .31A 13 002209A 1959 2010 .32A .37 14 002209B 1948 2010 .36 .26A .35 15 002210A 1959 2010 .59 .53 16 002210B 1941 2010 .39 .54 .50 17 002211B 1933 2010 .61 .51 .52 18 002212A 1933 2010 .76 .59 .55 19 002212B 1926 2010 .67 .58 .54 20 002213A 1930 2010 .72 .65 .65 21 002213B 1923 2010 .69 .79 .54 .52 22 002214A 1920 2010 .73 .84 .77 .70 23 002215A 1934 2010 .48 .57 .49 24 002215B 1935 2010 .48 .66 .65 25 002216A 1932 2010 .57 .73 .65 26 002217A 1921 2010 .51 .49 .44 .38 27 002218A 1927 2010 .63 .50 .51 28 002218B 1927 2010 .70 .66 .66 29 002219A 1939 2010 .62 .68 .68 30 002219B 1935 2010 .49 .67 .69 31 002220A 1937 2010 .54 .48 .40 Av segment correlation .63 .61 .56 .54 PART 7: DESCRIPTIVE STATISTICS: Babe Creek Summit 14:47 Tue 27 Aug 2013 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 002201A 1932 2010 79 3 0 .611 .29 .66 .105 .701 .218 2.74 .514 .043 1 2 002201B 1934 2010 77 3 0 .581 .29 .69 .103 .702 .221 2.84 .567 .063 1 3 002202A 1908 2010 103 4 0 .547 .52 1.71 .333 .875 .217 2.75 .606 -.038 2 4 002202B 1919 2010 92 4 1 .511 .60 1.74 .417 .808 .258 2.74 .604 -.026 2 5 002203A 1944 2010 67 3 0 .529 .58 1.43 .245 .692 .212 2.69 .421 -.080 1 6 002203B 1930 2010 81 3 0 .627 .50 .85 .127 .515 .209 2.54 .516 -.043 2 7 002205B 1942 2010 69 3 0 .532 .55 1.32 .244 .721 .217 2.59 .423 .040 1 8 002206A 1943 2010 68 3 0 .554 .40 .88 .161 .736 .243 2.78 .542 -.114 1 9 002206B 1925 2010 86 3 0 .719 .41 .78 .127 .679 .202 2.74 .520 -.055 1 10 002207A 1916 2010 95 4 0 .565 .38 .84 .172 .831 .202 2.85 .476 .045 1 11 002207B 1923 2010 88 4 0 .541 .40 .95 .181 .699 .228 3.02 .573 .054 1 12 002208A 1960 2010 51 2 1 .315 .52 2.00 .407 .841 .221 2.78 .566 .007 1 13 002209A 1959 2010 52 2 1 .330 .68 2.01 .361 .653 .250 2.84 .619 -.017 1 14 002209B 1948 2010 63 3 1 .313 .57 1.29 .190 .339 .246 2.92 .519 .035 2 15 002210A 1959 2010 52 2 0 .533 .76 1.41 .244 .583 .204 2.78 .535 .189 1 16 002210B 1941 2010 70 3 0 .437 .48 1.19 .229 .798 .264 2.87 .633 .013 1 17 002211B 1933 2010 78 3 0 .525 .38 .84 .174 .798 .216 2.70 .483 -.021 1 18 002212A 1933 2010 78 3 0 .619 .38 .67 .110 .566 .210 2.58 .396 -.011 1 19 002212B 1926 2010 85 3 0 .603 .64 1.86 .338 .807 .238 2.71 .531 .002 1 20 002213A 1930 2010 81 3 0 .701 .45 .96 .203 .806 .209 2.64 .511 -.050 1 21 002213B 1923 2010 88 4 0 .605 .42 .93 .165 .684 .208 2.66 .461 -.003 1 22 002214A 1920 2010 91 4 0 .710 .46 .89 .156 .733 .196 2.62 .530 -.031 1 23 002215A 1934 2010 77 3 0 .471 .46 .78 .118 .444 .214 2.85 .524 .070 1 24 002215B 1935 2010 76 3 0 .533 .33 .69 .138 .753 .200 2.63 .454 -.049 1 25 002216A 1932 2010 79 3 0 .578 .38 .76 .125 .588 .238 2.67 .538 -.087 1 26 002217A 1921 2010 90 4 0 .474 .38 .79 .138 .823 .175 2.63 .433 -.009 1 27 002218A 1927 2010 84 3 0 .558 .42 1.28 .216 .716 .261 2.84 .429 .013 1 28 002218B 1927 2010 84 3 0 .656 .41 1.34 .237 .805 .222 2.66 .557 -.011 1 29 002219A 1939 2010 72 3 0 .596 .40 .95 .178 .667 .273 2.85 .556 -.019 1 30 002219B 1935 2010 76 3 0 .573 .26 .69 .121 .850 .196 2.86 .515 -.058 1 31 002220A 1937 2010 74 3 0 .441 .35 .69 .121 .634 .227 2.72 .446 -.111 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2406 97 4 .554 .45 2.01 .197 .711 .222 3.02 .515 -.010