Dalton Highway Mile Post 199, Alaska - AK082 Additional Site Information Andrea Lloyd and Chris Fastie Purpose of Collection: Ecology - age structure Cores are available at: Middlebury College, Middlebury VT Notes: Site is a dense, mixed stand of black (PCMA) and white (PCGL) spruce that burned in 1900/1901. Reference: Lloyd et al. 2005. Population dynamics of black and white spruce near the arctic treeline in the southern Brooks Range, Alaska. Canadian Journal of Forest Research. 35(9):2073-2081 Chronology file name : AK082.CRN Measurement file name : AK082.RWL Date checked : 11DEC06 Checked by : B. Bauer Beginning year : 1815 Ending year : 2001 Principal investigators: Andrea Lloyd Chris Fastie Site name : Dalton Highway Mile Post 199 Site location : Alaska Species information : PCMA BLACK SPRUCE Latitude : 6732 Longitude : -14951 Elevation : 455M Series intercorrelation: 0.523 Avg mean sensitivity : 0.233 Avg standard deviation : 0.230 Avg autocorrelation : 0.790 Number dated series : 82 Segment length tested : 50 Number problem segments: 22 Pct problem segments : 7.19 PART 5: CORRELATION OF SERIES BY SEGMENTS: DH199 16:34 Mon 11 Dec 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 1850 1875 1900 1925 1950 1975 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 199-145 1926 2001 .29B .54 .52 2 199-147b 1924 2001 .67 .69 .43 .43 3 199-149 1929 2001 .71 .67 .67 4 199-150 1918 2001 .79 .86 .71 .71 5 199-152 1919 2001 .55 .50 .58 .57 6 199-153 1913 2001 .50 .77 .64 .62 7 199-154 1918 2001 .68 .71 .63 .61 8 199-155 1913 2001 .55 .48 .50 .50 9 199-156 1925 2001 .60 .77 .79 10 199-157 1917 2001 .55 .67 .47 .47 11 199-159 1914 2001 .64 .68 .48 .39 12 199-160 1917 2001 .65 .57 .39 .37 13 199-161 1914 2001 .58 .69 .72 .71 14 199-162 1914 2001 .38 .47 .50 .50 15 199-163 1917 2001 .63 .76 .60 .57 16 199-164 1915 2001 .74 .77 .66 .65 17 199-165 1922 2001 .77 .78 .72 .73 18 199-167 1918 2001 .61 .69 .61 .61 19 199-168 1918 2001 .56 .55 .46 .45 20 199-169 1917 2001 .35 .65 .74 .73 21 199-170 1928 2001 .51 .58 .56 22 199-171 1923 2001 .71 .72 .75 .74 23 199-173 1912 2001 .47 .53 .59 .57 24 199-174 1917 2001 .64 .62 .59 .47 25 199-175 1914 2001 .39 .27A .26A .24A 26 199-176a 1917 2001 .71 .64 .64 .63 27 199-177 1914 2001 .56 .73 .79 .78 28 199-178 1927 2001 .76 .79 .78 29 199-179 1915 2001 .67 .73 .63 .63 30 199-180 1926 2001 .57 .47 .42 31 199-182 1913 2001 .49 .63 .58 .59 32 199-183 1919 2001 .60 .56 .53 .52 33 199-186 1914 2001 .38 .32A .26A .29A 34 199-188 1915 2001 .45 .65 .68 .69 35 199-189 1917 2001 .62 .53 .58 .59 36 199-190 1915 2001 .67 .75 .75 .72 37 199-191 1929 2001 .73 .67 .66 38 199-192b 1927 2001 .58 .49 .51 39 199-193 1913 2001 .54 .48 .29B .27B 40 199-194 1928 2001 .63 .57 .60 41 199-195 1919 2001 .52 .74 .82 .81 42 199-196 1927 2001 .71 .71 .70 43 199-197a 1914 2001 .51 .62 .62 .65 44 199-198 1925 2001 .64 .56 .54 45 199-199 1928 2001 .52 .58 .56 46 199-200 1914 2001 .71 .68 .65 .63 47 199-203 1919 2001 .66 .60 .49 .47 48 199-204 1919 2001 .50 .72 .70 .70 49 199-205 1917 2001 .53 .50 .45 .46 50 199-206 1930 2001 .71 .64 .65 51 199-207 1929 2001 .64 .63 .63 52 199-208 1928 2001 .56 .49 .53 53 199-209 1917 2001 .61 .47 .45 .49 54 199-212 1926 2001 .66 .45 .43 55 199-214 1927 2001 .57 .42 .45 56 199-215 1915 2001 .37 .38 .46 .46 57 199-216 1914 2001 .47 .69 .65 .65 58 199-217 1919 2001 .66 .68 .60 .59 59 199-218 1928 2001 .58 .54 .53 60 199-221 1926 2001 .55 .51 .50 61 199-224 1918 2001 .52 .52 .68 .67 62 199-225 1918 2001 .48 .69 .79 .78 63 199-226 1918 2001 .49 .52 .51 .46 64 199-227 1923 2001 .67 .67 .67 .66 65 199-228 1920 2001 .36 .43 .43 .41 66 199-229 1911 2001 .21B .34 .67 .68 67 199-231 1926 2001 .63 .73 .75 68 199-234 1916 2001 .64 .84 .83 .83 69 199-240 1927 2001 .69 .46 .47 70 199-241 1927 2001 .52 .57 .58 71 199-244 1815 2001 .14B-.04B .33A .50 .35 .31A 72 199-249 1913 2001 .51 .65 .55 .45 73 199-251 1919 2001 .22A .37 .46 .47 74 199-252 1925 2001 .47 .68 .69 75 199-253 1926 2001 .39 .32A .27A 76 199-254 1918 2001 .49 .64 .68 .67 77 199-261 1921 2001 .61 .63 .76 .75 78 199-262 1913 2001 .20B .39 .53 .50 79 199-264 1851 2001 .14B .01B .19B .51 .70 .69 80 199-267 1918 2001 .33A .57 .70 .69 81 199-268 1925 2001 .72 .62 .61 82 199-185 1926 2001 .53 .67 .70 Av segment correlation .14 -.01 .53 .60 .59 .58 PART 7: DESCRIPTIVE STATISTICS: DH199 16:34 Mon 11 Dec 2006 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 199-145 1926 2001 76 3 1 .348 .28 .51 .088 .643 .212 2.72 .498 -.032 1 2 199-147b 1924 2001 78 4 0 .511 .75 2.18 .391 .845 .222 2.50 .439 -.095 2 3 199-149 1929 2001 73 3 0 .629 .65 1.13 .180 .667 .192 2.38 .389 -.053 1 4 199-150 1918 2001 84 4 0 .730 .45 1.24 .269 .881 .264 2.40 .411 .024 1 5 199-152 1919 2001 83 4 0 .521 .38 1.24 .281 .892 .240 2.46 .372 -.111 1 6 199-153 1913 2001 89 4 0 .574 .66 2.79 .624 .933 .236 2.36 .313 -.042 1 7 199-154 1918 2001 84 4 0 .636 .54 1.47 .308 .839 .240 2.81 .596 -.067 1 8 199-155 1913 2001 89 4 0 .484 .39 1.26 .309 .857 .295 2.74 .507 -.027 1 9 199-156 1925 2001 77 3 0 .619 .51 1.21 .193 .765 .201 2.69 .493 .037 1 10 199-157 1917 2001 85 4 0 .481 .51 1.32 .245 .816 .279 2.53 .395 -.084 1 11 199-159 1914 2001 88 4 0 .470 .77 2.54 .521 .920 .226 2.43 .415 -.049 1 12 199-160 1917 2001 85 4 0 .435 .40 1.39 .269 .865 .249 2.45 .327 -.067 1 13 199-161 1914 2001 88 4 0 .643 .60 1.30 .297 .780 .281 2.85 .512 .010 1 14 199-162 1914 2001 88 4 0 .364 .56 1.48 .303 .709 .276 2.65 .337 -.074 1 15 199-163 1917 2001 85 4 0 .568 .32 1.12 .175 .853 .206 2.60 .422 -.087 1 16 199-164 1915 2001 87 4 0 .673 .70 1.56 .337 .862 .196 2.63 .449 -.052 1 17 199-165 1922 2001 80 4 0 .712 .39 1.10 .231 .870 .257 2.30 .309 -.027 1 18 199-167 1918 2001 84 4 0 .609 .52 1.66 .385 .909 .256 2.77 .567 -.039 1 19 199-168 1918 2001 84 4 0 .451 .44 1.18 .239 .848 .224 2.68 .572 -.042 2 20 199-169 1917 2001 85 4 0 .582 .34 .92 .175 .827 .241 2.49 .423 .032 1 21 199-170 1928 2001 74 3 0 .494 .37 .77 .149 .694 .273 2.71 .557 .001 1 22 199-171 1923 2001 79 4 0 .707 .61 1.12 .183 .674 .200 2.52 .494 -.002 1 23 199-173 1912 2001 90 4 0 .525 .39 .89 .156 .726 .225 2.88 .549 -.065 1 24 199-174 1917 2001 85 4 0 .541 .41 1.10 .195 .861 .197 2.51 .386 -.054 1 25 199-175 1914 2001 88 4 3 .256 .48 1.23 .270 .902 .193 2.88 .560 -.022 1 26 199-176a 1917 2001 85 4 0 .644 .83 2.24 .470 .887 .228 2.62 .403 -.067 1 27 199-177 1914 2001 88 4 0 .652 .56 1.29 .271 .850 .201 2.79 .451 -.103 1 28 199-178 1927 2001 75 3 0 .752 .29 .76 .142 .714 .263 2.76 .472 .027 1 29 199-179 1915 2001 87 4 0 .659 .73 2.00 .425 .890 .219 2.88 .497 .063 2 30 199-180 1926 2001 76 3 0 .444 .54 1.28 .248 .899 .165 2.79 .499 -.055 1 31 199-182 1913 2001 89 4 0 .557 .56 1.67 .320 .826 .235 2.75 .500 .007 1 32 199-183 1919 2001 83 4 0 .540 .30 .79 .135 .826 .200 2.62 .418 -.026 1 33 199-186 1914 2001 88 4 3 .285 .15 .48 .089 .741 .341 2.79 .459 -.071 1 34 199-188 1915 2001 87 4 0 .565 .36 .79 .171 .802 .240 2.76 .430 .004 1 35 199-189 1917 2001 85 4 0 .540 .38 .81 .155 .779 .229 2.77 .453 .001 1 36 199-190 1915 2001 87 4 0 .673 .34 .73 .171 .869 .209 2.66 .441 -.006 1 37 199-191 1929 2001 73 3 0 .624 .22 .62 .106 .611 .282 2.63 .439 .007 2 38 199-192b 1927 2001 75 3 0 .497 .31 .61 .095 .631 .210 2.63 .521 .047 1 39 199-193 1913 2001 89 4 2 .335 .30 .75 .131 .634 .253 2.71 .436 -.139 1 40 199-194 1928 2001 74 3 0 .515 .26 .53 .082 .622 .193 2.58 .432 -.003 1 41 199-195 1919 2001 83 4 0 .714 .47 .95 .170 .746 .205 2.58 .342 .005 1 42 199-196 1927 2001 75 3 0 .665 .35 .68 .126 .650 .234 2.61 .413 .039 1 43 199-197a 1914 2001 88 4 0 .566 .49 1.34 .261 .829 .228 2.61 .379 -.068 1 44 199-198 1925 2001 77 3 0 .558 .58 1.06 .183 .615 .213 2.71 .457 .080 1 45 199-199 1928 2001 74 3 0 .515 .33 .64 .107 .649 .209 2.67 .475 -.020 1 46 199-200 1914 2001 88 4 0 .639 .43 1.19 .272 .893 .193 2.76 .578 -.060 1 47 199-203 1919 2001 83 4 0 .407 .33 .68 .167 .861 .228 2.45 .337 -.072 1 48 199-204 1919 2001 83 4 0 .594 .65 1.40 .263 .756 .223 2.79 .531 .046 1 PART 7: DESCRIPTIVE STATISTICS: DH199 16:34 Mon 11 Dec 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 199-205 1917 2001 85 4 0 .485 .50 1.28 .203 .756 .220 2.59 .416 -.001 1 50 199-206 1930 2001 72 3 0 .655 .40 .59 .108 .702 .176 2.77 .643 -.039 1 51 199-207 1929 2001 73 3 0 .585 .60 1.01 .175 .535 .241 2.63 .438 .004 1 52 199-208 1928 2001 74 3 0 .512 .28 .63 .104 .669 .246 2.56 .462 -.009 1 53 199-209 1917 2001 85 4 0 .506 .37 1.27 .181 .680 .257 3.02 .578 .034 1 54 199-212 1926 2001 76 3 0 .497 .41 .75 .140 .626 .208 2.82 .502 -.050 1 55 199-214 1927 2001 75 3 0 .474 .17 .50 .081 .625 .271 2.98 .420 -.042 1 56 199-215 1915 2001 87 4 0 .400 .27 .62 .122 .835 .225 2.50 .382 -.054 1 57 199-216 1914 2001 88 4 0 .577 .31 .80 .167 .799 .232 2.74 .470 .026 1 58 199-217 1919 2001 83 4 0 .582 .49 .98 .230 .829 .217 2.80 .527 -.037 1 59 199-218 1928 2001 74 3 0 .519 .54 1.08 .188 .774 .167 2.91 .492 .035 1 60 199-221 1926 2001 76 3 0 .470 .20 .81 .137 .595 .301 2.77 .478 .094 1 61 199-224 1918 2001 84 4 0 .522 .55 1.37 .254 .757 .248 2.81 .556 -.184 1 62 199-225 1918 2001 84 4 0 .668 .48 1.31 .253 .793 .231 2.60 .336 .071 2 63 199-226 1918 2001 84 4 0 .439 .41 1.05 .210 .794 .247 2.79 .480 -.049 1 64 199-227 1923 2001 79 4 0 .611 .22 .71 .123 .798 .209 2.93 .422 -.077 1 65 199-228 1920 2001 82 4 0 .250 .19 .64 .138 .875 .305 2.81 .515 -.030 1 66 199-229 1911 2001 91 4 1 .371 1.07 2.24 .562 .802 .224 2.53 .346 -.001 1 67 199-231 1926 2001 76 3 0 .614 .44 1.07 .251 .871 .211 2.87 .589 .086 2 68 199-234 1916 2001 86 4 0 .732 .53 1.15 .211 .817 .196 2.64 .395 .023 1 69 199-240 1927 2001 75 3 0 .464 .46 .83 .163 .766 .201 2.64 .437 .036 1 70 199-241 1927 2001 75 3 0 .542 .34 1.14 .236 .909 .265 2.52 .398 .013 2 71 199-244 1815 2001 187 6 4 .255 .52 1.46 .446 .931 .273 3.06 .391 .037 1 72 199-249 1913 2001 89 4 0 .443 .47 .89 .233 .912 .202 2.50 .436 -.041 2 73 199-251 1919 2001 83 4 1 .331 .17 .72 .124 .884 .270 2.57 .401 -.071 1 74 199-252 1925 2001 77 3 0 .513 .25 .51 .115 .799 .239 2.94 .592 -.012 1 75 199-253 1926 2001 76 3 2 .334 .24 .67 .112 .781 .204 2.85 .545 .046 1 76 199-254 1918 2001 84 4 0 .560 .22 .54 .106 .783 .248 2.84 .499 -.065 1 77 199-261 1921 2001 81 4 0 .592 .25 .82 .162 .901 .262 2.71 .459 -.052 1 78 199-262 1913 2001 89 4 1 .370 .26 .53 .099 .663 .233 2.68 .418 .017 1 79 199-264 1851 2001 151 6 3 .303 .60 1.83 .477 .925 .228 2.59 .356 -.014 2 80 199-267 1918 2001 84 4 1 .560 .55 1.40 .317 .820 .270 2.53 .377 .090 1 81 199-268 1925 2001 77 3 0 .615 .75 1.50 .264 .685 .223 2.70 .538 -.034 1 82 199-185 1926 2001 76 3 0 .556 .45 .66 .102 .481 .185 2.36 .338 -.046 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6898 306 22 .523 .45 2.79 .230 .790 .233 3.06 .452 -.020