Dalton Highway Mile Post 171, Alaska - AK079 Additional Site Information Andrea Lloyd and Chris Fastie Purpose of Collection: Ecology - age structure Cores are available at: Middlebury College, Middlebury VT Notes: Data are not yet published. Chronology file name : AK079.CRN Measurement file name : AK079.RWL Date checked : 11DEC06 Checked by : B. Bauer Beginning year : 1878 Ending year : 2005 Principal investigators: Andrea Lloyd Chris Fastie Site name : Dalton Highway Mile Post 171 Site location : Alaska Species information : PCMA BLACK SPRUCE Latitude : 6713 Longitude : -15016 Elevation : 405M Series intercorrelation: 0.489 Avg mean sensitivity : 0.208 Avg standard deviation : 0.406 Avg autocorrelation : 0.804 Number dated series : 54 Segment length tested : 50 Number problem segments: 21 Pct problem segments : 10.61 PART 5: CORRELATION OF SERIES BY SEGMENTS: DH171 16:31 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 1875 1900 1925 1950 1975 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 171-1 1938 2005 .70 .71 .69 2 171-2 1955 2004 .69 3 171-4 1930 2005 .61 .70 .70 4 171-5 1936 2005 .71 .68 .63 5 171-6 1932 2005 .81 .75 .72 6 171-7 1927 2005 .50 .52 .50 7 171-8 1917 2005 .45 .49 .51 .53 8 171-9 1934 2005 .38 .36B .31A 9 171-10 1931 2005 .56 .54 .37 10 171-13 1924 2005 .51 .50 .42 .33 11 171-14 1924 2005 .60 .61 .60 .63 12 171-15 1927 2005 .52 .44 .38 13 171-17 1899 2005 .18B .21B .42 .65 .65 14 171-20AB 1930 2005 .63 .64 .67 15 171-21 1934 2005 .65 .75 .75 16 171-22B 1927 2005 .58 .74 .73 17 171-23 1932 2005 .46 .73 .71 18 171-24 1931 2005 .71 .77 .77 19 171-25 1926 2005 .74 .71 .64 20 171-26 1878 2005 .15B .28A .33 .51 .56 21 171-27 1922 2005 .56 .62 .49 .49 22 171-28 1919 2005 .48 .42 .43 .36 23 171-29 1913 2005 .38 .31A .24A .18A 24 171-30 1910 2005 .62 .35 .18B .15A 25 171-31 1921 2005 .57 .58 .69 .61 26 171-40 1927 2005 .48 .48 .42 27 171-41 1919 2005 .46 .71 .63 .58 28 171-42 1927 2005 .49 .61 .58 29 171-43 1918 2003 .35 .58 .57 .54 30 171-45 1923 2005 .60 .62 .72 .65 31 171-46 1930 2005 .63 .81 .78 32 171-47 1920 2005 .38 .54 .53 .45 33 171-48 1936 2005 .56 .70 .77 34 171-49A 1921 2005 .58 .60 .68 .70 35 171-50 1931 2005 .57 .70 .61 36 171-51 1938 2005 .66 .61 .52 37 171-52 1917 2005 .50 .35 .43 .41 38 171-53 1920 2004 .72 .73 .62 .58 39 171-54 1921 2005 .59 .55 .63 .65 40 171-55 1915 2005 .42 .29B .42 .44 41 171-56 1922 2005 .34 .40 .52 .53 42 171-57 1924 2005 .65 .68 .79 .81 43 171-58 1929 2005 .46 .74 .79 44 171-59 1923 2005 .37 .35 .41 .30A 45 171-60 1912 2005 .41 .39 .46 .25B 46 171-61 1916 2005 .67 .50 .51 .43 47 171-62 1905 2005 .30A .40 .46 .50 48 171-63 1924 2005 .41 .43 .54 .52 49 171-64 1881 2005 .07B .40 .67 .66 .66 50 171-65 1893 2005 .37 .45 .53 .49 .32A 51 171-66 1896 2005 .36 .43 .61 .64 .68 52 171-67 1890 2005 .39 .39 .41 .45 .47 53 171-68 1914 2005 .36 .48 .45 .46 54 171-69 1910 2005 .28A .17B .25A .30A Av segment correlation .25 .46 .53 .57 .54 PART 7: DESCRIPTIVE STATISTICS: DH171 16:31 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 171-1 1938 2005 68 3 0 .644 1.06 2.20 .278 .391 .194 2.68 .465 .019 2 2 171-2 1955 2004 50 1 0 .691 1.47 2.61 .442 .513 .230 2.52 .383 -.023 1 3 171-4 1930 2005 76 3 0 .591 .95 1.95 .398 .811 .199 2.62 .458 -.076 1 4 171-5 1936 2005 70 3 0 .640 .93 1.66 .350 .804 .174 2.67 .520 -.011 1 5 171-6 1932 2005 74 3 0 .730 1.36 2.75 .588 .728 .229 2.63 .436 -.038 1 6 171-7 1927 2005 79 3 0 .468 1.06 1.98 .417 .722 .228 2.74 .636 -.048 1 7 171-8 1917 2005 89 4 0 .483 .94 1.53 .260 .671 .180 2.68 .461 .014 1 8 171-9 1934 2005 72 3 2 .316 .85 1.47 .237 .670 .170 2.93 .499 .028 1 9 171-10 1931 2005 75 3 0 .433 .64 1.54 .353 .860 .260 2.76 .544 .008 1 10 171-13 1924 2005 82 4 0 .366 .60 1.30 .293 .816 .210 2.80 .625 .050 1 11 171-14 1924 2005 82 4 0 .572 .56 1.01 .176 .670 .199 2.60 .482 -.014 1 12 171-15 1927 2005 79 3 0 .369 .80 1.76 .402 .841 .212 2.65 .500 .061 1 13 171-17 1899 2005 107 5 2 .430 .88 1.73 .414 .862 .182 2.60 .498 -.009 1 14 171-20AB 1930 2005 76 3 0 .629 .86 1.54 .294 .725 .183 2.63 .472 .039 1 15 171-21 1934 2005 72 3 0 .651 1.01 1.82 .413 .846 .177 2.46 .419 -.041 1 16 171-22B 1927 2005 79 3 0 .593 1.01 2.16 .501 .847 .198 2.85 .514 -.005 1 17 171-23 1932 2005 74 3 0 .486 .96 1.79 .320 .734 .190 2.80 .538 .022 1 18 171-24 1931 2005 75 3 0 .700 .89 1.60 .337 .737 .219 2.47 .405 -.030 1 19 171-25 1926 2005 80 3 0 .606 .77 1.47 .259 .599 .226 2.56 .387 .003 1 20 171-26 1878 2005 128 5 2 .330 .63 1.66 .336 .852 .242 2.81 .593 -.093 1 21 171-27 1922 2005 84 4 0 .428 .72 1.94 .350 .759 .249 2.69 .550 -.068 1 22 171-28 1919 2005 87 4 0 .410 .64 2.06 .426 .833 .200 2.69 .532 -.009 1 23 171-29 1913 2005 93 4 3 .271 .89 2.23 .496 .889 .179 2.64 .472 -.039 1 24 171-30 1910 2005 96 4 2 .356 .53 1.49 .333 .805 .238 2.68 .468 -.003 1 25 171-31 1921 2005 85 4 0 .508 .58 1.85 .358 .850 .258 2.78 .488 -.034 2 26 171-40 1927 2005 79 3 0 .470 1.37 3.11 .565 .803 .213 2.47 .384 .001 1 27 171-41 1919 2005 87 4 0 .514 .81 1.86 .297 .688 .199 2.73 .447 -.039 1 28 171-42 1927 2005 79 3 0 .562 .91 1.95 .385 .836 .161 2.72 .460 -.035 1 29 171-43 1918 2003 86 4 0 .515 .90 2.28 .736 .945 .205 2.61 .427 .007 1 30 171-45 1923 2005 83 4 0 .589 .82 2.11 .459 .866 .219 2.82 .553 .046 2 31 171-46 1930 2005 76 3 0 .655 .81 1.48 .284 .725 .195 2.51 .359 .017 1 32 171-47 1920 2005 86 4 0 .441 .92 2.98 .747 .930 .265 2.61 .427 -.059 1 33 171-48 1936 2005 70 3 0 .561 1.01 2.33 .507 .898 .184 2.77 .560 -.021 1 34 171-49A 1921 2005 85 4 0 .616 .99 2.14 .486 .852 .222 2.74 .526 .003 1 35 171-50 1931 2005 75 3 0 .538 1.04 2.53 .651 .869 .211 2.94 .548 .000 1 36 171-51 1938 2005 68 3 0 .519 1.14 2.98 .566 .835 .187 2.65 .404 -.065 1 37 171-52 1917 2005 89 4 0 .424 .72 1.53 .356 .863 .181 2.62 .367 .023 2 38 171-53 1920 2004 85 4 0 .594 .73 1.93 .407 .858 .201 2.68 .497 -.049 1 39 171-54 1921 2005 85 4 0 .565 .81 1.88 .351 .804 .200 2.81 .570 -.058 1 40 171-55 1915 2005 91 4 1 .436 .63 1.32 .375 .911 .195 2.54 .385 -.033 1 41 171-56 1922 2005 84 4 0 .440 .86 2.25 .572 .932 .184 2.51 .386 .050 1 42 171-57 1924 2005 82 4 0 .656 1.10 2.83 .658 .879 .197 2.59 .409 .057 2 43 171-58 1929 2005 77 3 0 .558 1.16 2.62 .513 .807 .208 3.01 .576 -.045 1 44 171-59 1923 2005 83 4 1 .375 .97 2.14 .495 .834 .192 2.58 .387 -.032 1 45 171-60 1912 2005 94 4 1 .326 .90 2.04 .486 .844 .210 2.58 .495 -.015 1 46 171-61 1916 2005 90 4 0 .536 .90 2.13 .443 .869 .182 2.76 .586 .070 1 47 171-62 1905 2005 101 4 1 .413 .64 1.66 .394 .888 .222 2.82 .534 -.041 1 48 171-63 1924 2005 82 4 0 .459 .60 1.41 .266 .799 .200 2.73 .549 .151 1 PART 7: DESCRIPTIVE STATISTICS: DH171 16:31 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 171-64 1881 2005 125 5 1 .403 .86 2.67 .462 .832 .200 2.76 .510 -.008 1 50 171-65 1893 2005 113 5 1 .382 .50 1.35 .293 .880 .224 2.99 .565 -.002 1 51 171-66 1896 2005 110 5 0 .544 .63 1.49 .302 .702 .257 2.97 .608 .020 1 52 171-67 1890 2005 116 5 0 .440 .77 1.86 .472 .859 .233 2.83 .479 -.057 1 53 171-68 1914 2005 92 4 0 .398 .52 1.37 .222 .803 .197 2.68 .470 -.035 2 54 171-69 1910 2005 96 4 4 .320 .68 1.37 .234 .632 .213 2.58 .328 -.050 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4601 198 21 .489 .84 3.11 .406 .804 .208 3.01 .487 -.010