Babe Creek Toe Slope, Alaska - ak135 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 Toe slope location of the Babe Creek toposequence to study the climate-growth relationships of black spruce. Dated series were visually and then statistically crossdated with the program COFECHA. COFECHA output: Chronology file name : AK135.CRN Measurement file name : AK135.RWL Date checked : 27AUG13 Checked by : B. Bauer Beginning year : 1895 Ending year : 2010 Principal investigators: J.M. Wolken D.H. Mann A.H. Lloyd Site name : Babe Creek Toe Slope Site location : Alaska Species information : PCMA BLACK SPRUCE Latitude : 6500 Longitude : -14740 Elevation : 317M Series intercorrelation: 0.546 Avg mean sensitivity : 0.221 Avg standard deviation : 0.221 Avg autocorrelation : 0.765 Number dated series : 30 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 3.26 PART 5: CORRELATION OF SERIES BY SEGMENTS: BabeCreek Toe Slope 14:50 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 002502A 1927 2010 .67 .63 .53 2 002502B 1928 2010 .72 .73 .64 3 002503A 1895 2010 .40 .71 .69 .70 4 002504A 1933 2010 .67 .76 .67 5 002504B 1942 2008 .75 .74 .69 6 002505A 1910 2010 .35 .59 .60 .54 7 002506A 1937 2010 .62 .67 .59 8 002506B 1948 2010 .69 .68 .66 9 002507B 1946 2010 .57 .55 .54 10 002508A 1940 2010 .44 .42B .42 11 002508B 1927 2010 .77 .79 .75 12 002509A 1926 2010 .69 .66 .69 13 002509B 1926 2010 .64 .67 .70 14 002510A 1927 2010 .66 .69 .76 15 002510B 1927 2010 .57 .53 .50 16 002511A 1942 2010 .61 .70 .71 17 002511B 1946 2010 .51 .54 .38 18 002513A 1943 2010 .53 .61 .62 19 002514A 1942 2010 .70 .71 .62 20 002514B 1948 2010 .72 .74 .70 21 002515A 1928 2010 .34B .42 .33 22 002515B 1937 2010 .69 .53 .48 23 002516B 1940 2010 .78 .68 .57 24 002517A 1931 2010 .59 .60 .53 25 002518A 1931 2010 .71 .75 .72 26 002518B 1938 2010 .49 .46 .48 27 002519A 1949 2010 .54 .56 .49 28 002519B 1944 2010 .46 .41 .28B 29 002520A 1933 2010 .58 .60 .50 30 002520B 1944 2010 .51 .48 .48 Av segment correlation .37 .62 .62 .58 PART 7: DESCRIPTIVE STATISTICS: BabeCreek Toe Slope 14:50 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 002502A 1927 2010 84 3 0 .515 .35 1.37 .305 .907 .220 2.58 .378 -.012 1 2 002502B 1928 2010 83 3 0 .625 .41 1.32 .356 .913 .225 2.66 .466 .032 1 3 002503A 1895 2010 116 4 0 .530 .35 .88 .196 .840 .241 2.63 .403 -.027 1 4 002504A 1933 2010 78 3 0 .583 .37 .95 .206 .849 .221 2.58 .455 -.042 1 5 002504B 1942 2008 67 3 0 .669 .40 1.22 .224 .855 .230 2.73 .401 -.081 1 6 002505A 1910 2010 101 4 0 .444 .48 1.12 .232 .643 .251 2.73 .524 -.018 2 7 002506A 1937 2010 74 3 0 .544 .45 .89 .147 .640 .208 2.73 .565 .010 2 8 002506B 1948 2010 63 3 0 .645 .45 .79 .149 .750 .183 2.41 .369 -.078 1 9 002507B 1946 2010 65 3 0 .534 .43 .63 .091 .596 .163 2.48 .392 -.060 2 10 002508A 1940 2010 71 3 1 .424 .50 1.36 .291 .874 .202 2.71 .541 .013 1 11 002508B 1927 2010 84 3 0 .712 .55 1.38 .305 .837 .223 2.73 .492 -.029 1 12 002509A 1926 2010 85 3 0 .668 .44 1.00 .209 .692 .285 2.82 .551 -.035 1 13 002509B 1926 2010 85 3 0 .589 .34 1.11 .179 .803 .222 2.86 .393 -.050 1 14 002510A 1927 2010 84 3 0 .635 .44 .75 .140 .618 .233 2.49 .436 -.075 1 15 002510B 1927 2010 84 3 0 .483 .48 1.24 .208 .683 .223 2.44 .385 -.044 2 16 002511A 1942 2010 69 3 0 .595 .56 1.27 .223 .564 .256 2.61 .435 -.072 1 17 002511B 1946 2010 65 3 0 .402 .56 1.91 .260 .776 .155 2.56 .399 -.136 1 18 002513A 1943 2010 68 3 0 .481 .49 .96 .206 .656 .273 2.73 .537 -.043 2 19 002514A 1942 2010 69 3 0 .640 .57 1.54 .343 .857 .233 2.70 .506 -.043 1 20 002514B 1948 2010 63 3 0 .681 .56 1.48 .375 .898 .237 2.69 .551 -.075 1 21 002515A 1928 2010 83 3 1 .356 .33 1.20 .277 .856 .318 2.79 .476 -.030 1 22 002515B 1937 2010 74 3 0 .502 .33 1.09 .257 .914 .213 2.49 .451 -.021 2 23 002516B 1940 2010 71 3 0 .617 .38 .84 .137 .677 .202 2.72 .525 -.018 1 24 002517A 1931 2010 80 3 0 .548 .44 1.28 .195 .829 .174 2.54 .468 -.085 1 25 002518A 1931 2010 80 3 0 .655 .42 .81 .148 .773 .167 2.73 .402 .027 1 26 002518B 1938 2010 73 3 0 .462 .36 1.35 .218 .776 .213 2.93 .568 .104 1 27 002519A 1949 2010 62 3 0 .522 .42 .81 .144 .654 .189 2.84 .534 .156 1 28 002519B 1944 2010 67 3 1 .370 .40 .81 .129 .598 .193 2.91 .532 .036 3 29 002520A 1933 2010 78 3 0 .478 .40 1.35 .267 .840 .223 2.66 .481 -.050 1 30 002520B 1944 2010 67 3 0 .479 .47 1.18 .187 .712 .201 2.76 .410 .010 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2293 92 3 .546 .43 1.91 .221 .765 .221 2.93 .466 -.025