Hey Bear Upper, Alaska, USA - AK067 Additional Site Information Rosanne D'Arrigo, Erika Mashig, David Frank, Rob Wilson and Gordon Jacoby. Purpose of Collection: Climate analysis Measurement type: Total ring width Location of core material: Tree-Ring Laboratory Lamont-Doherty Earth Observatory Palisades, New York 10964 Reference: D'Arrigo, R., E. Mashig, D. Frank, R. Wilson and G. Jacoby. 2005. Temperature Variability over the past millennium inferred from northwestern Alaska tree rings. Climate Dynamics 24: 227-236. doi:10.1007/s00382-004-0502-1. COFECHA output: Chronology file name : AK067.CRN Measurement file name : AK067.RWL Date checked : 13JAN06 Checked by : B. Bauer Beginning year : 1383 Ending year : 2002 Principal investigators: R. D'Arrigo E. Mashig D. Frank R. Wilson G. Jacoby Site name : Hey Bear Upper Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6513 Longitude : -16213 Elevation : 229M Series intercorrelation: 0.611 Avg mean sensitivity : 0.225 Avg standard deviation : 0.216 Avg autocorrelation : 0.814 Number dated series : 74 Segment length tested : 50 Number problem segments: 58 Pct problem segments : 7.19 PART 5: CORRELATION OF SERIES BY SEGMENTS: Hey Bear Upper 12:16 Fri 13 Jan 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 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HBU00 1737 1895 .62 .63 .72 .71 .72 .52 2 HBU02a 1776 1944 .17B .14B .38 .80 3 HBU02b 1788 1937 .22B .28A .39 .69 4 HBU04 1736 2002 .36 .37B .62 .65 .67 .79 5 HBU05a 1694 2002 .72 .70 .65 .67 .71 .66 .65 .80 6 HBU05b 1706 2002 .67 .64 .69 .62 .59 .68 .68 7 HBU06 1722 1938 .66 .66 .67 .75 .71 .63 .73 8 HBU07a 1794 2002 .28B .23B .32B .71 9 HBU07b 1794 2002 .46 .40 .47 .80 10 HBU08 1787 1999 .39 .47 .53 .61 11 HBU09a 1740 1938 .30A .34 .57 .57 .57 .68 12 HBU09b 1740 1938 .33 .38 .64 .65 .64 .74 13 HBU10a 1520 1901 .47 .51 .56 .35 .39 .70 .40 .38 .46 .53 .66 .67 .70 .62 .71 14 HBU10b 1494 1892 .53 .57 .67 .71 .51 .52 .72 .52 .52 .58 .60 .46 .45 .60 .56 .51 15 HBU11b 1821 2002 .38 .34 .28A 16 HBU12a 1698 2002 .84 .84 .79 .76 .60 .46 .65 .78 17 HBU12b 1753 2002 .74 .73 .59 .63 .73 18 HBU13a 1801 1968 .39 .34B .61 19 HBU13b 1801 1959 .48 .60 .73 20 HBU14a 1615 1921 .59 .67 .63 .73 .75 .57 .56 .68 .64 .42 .49 21 HBU14b 1615 1920 .43 .57 .62 .63 .57 .50 .48 .59 .63 .61 .70 22 HBU15a 1734 2002 .74 .71 .76 .64 .64 .86 23 HBU15b 1706 2002 .74 .79 .77 .80 .74 .66 .71 24 HBU17a 1600 1933 .50 .64 .71 .83 .77 .68 .72 .68 .60 .68 .56 25 HBU17b 1533 1904 .45 .56 .49 .48 .79 .73 .67 .75 .71 .68 .70 .66 .53 .55 26 HBU18a 1602 1903 .50 .58 .62 .64 .68 .68 .61 .50 .48 .56 .77 27 HBU19a 1557 1989 .33 .31A .42 .35 .35 .68 .69 .74 .79 .74 .71 .67 .61 28 HBU20a 1642 1917 .55 .56 .57 .74 .69 .56 .70 .73 .58 .62 29 HBU20b 1650 1920 .63 .66 .73 .72 .75 .85 .82 .80 .67 30 HBU22a 1816 2002 .43 .47 .75 31 HBU22b 1805 2002 .37 .53 .73 32 HBU23a 1792 2002 .38 .31A .45 .52 34 HBU24a 1792 2002 .38 .29B .46 .64 35 HBU24b 1797 2002 .25B .29A .35 .47 36 HBU25a 1684 2002 .48B .60 .70 .81 .71 .57 .66 .76 37 HBU25b 1696 2002 .66 .65 .73 .76 .84 .82 .67 .71 38 HBU25c 1652 2002 .64 .59 .65 .70 .62 .74 .84 .70 .74 39 HBU26a 1763 2002 .70 .73 .77 .67 .77 40 HBU26a 1763 2002 .70 .73 .77 .67 .77 41 HBU27a 1716 2002 .65 .69 .59 .59 .63 .65 .69 42 HBU27b 1713 2002 .71 .72 .71 .78 .75 .65 .79 43 HBU27c 1716 2002 .67 .69 .51 .45 .56 .57 .56 44 HBU28 1808 2002 .39 .63 .78 45 HBU29a 1673 2002 .23B .18B .39B .55 .51 .67 .70 .57 .74 46 HBU30 1813 2002 .55 .55 .73 47 HBU30a 1560 1936 .42 .50 .52 .60 .59 .51 .66 .75 .65 .77 .80 .64 .58 48 HBU30b 1696 1924 .72 .69 .78 .63 .51 .64 .64 .62 49 HBU31a 1564 1980 .35 .39 .45 .41 .26B .54 .66 .60 .61 .62 .62 .62 .61 50 HBU31b 1610 1959 .64 .54 .38 .56 .64 .64 .72 .78 .73 .50 .58 51 HBU32a 1696 2002 .71 .70 .69 .78 .88 .84 .74 .81 52 HBU32b 1684 2002 .63 .67 .65 .71 .78 .76 .69 .78 53 HBU33a 1383 1810 .26A .37 .37B .45 .72 .84 .76 .67 .66 .69 .72 .60 .66 .80 .67 .56 .56 54 HBU33b 1387 1810 .16B .23B .41 .51 .74 .83 .76 .65 .67 .63 .66 .59 .66 .75 .68 .58 .61 55 HBU34a 1776 2002 .50 .49 .48 .51 56 HBUX02b 1579 1804 .32A .29A .38 .34 .26B .30B .32A .31A .22B 57 HBUX04a 1808 1978 .46 .33B .47 58 HBUX04b 1808 1977 .54 .37B .74 59 HBUX05a 1634 1934 .40 .45 .61 .68 .60 .64 .61 .52 .58 .43 60 HBUX05b 1634 1926 .37 .60 .56 .69 .69 .67 .67 .51 .49 .50 61 HBUX06a 1630 1919 .31A .56 .58 .71 .80 .73 .71 .67 .58 .66 62 HBUX06b 1630 1916 .26A .59 .56 .73 .81 .70 .69 .65 .50 .64 63 HBUX07a 1659 1925 .38 .44 .60 .84 .76 .66 .57 .58 .52 64 HBUX07b 1659 1937 .47 .49 .74 .69 .51 .68 .68 .57 .70 65 HBUX08a 1566 1832 .30A .37 .25A .41 .70 .77 .82 .79 .75 .61 .60 66 HBUX08b 1566 1885 .42 .36 .41 .56 .57 .63 .70 .81 .77 .65 .61 .75 .68 67 HBUX09a 1543 1920 .40 .40 .61 .66 .70 .72 .79 .82 .70 .72 .61 .46 .71 .84 68 HBUX09b 1543 1908 .53 .50 .34B .46 .64 .52 .56 .55 .62 .67 .69 .79 .73 .54 69 HBUX10a 1515 1820 .67 .65 .59 .70 .71 .68 .67 .72 .74 .67 .57 .59 70 HBUX10b 1515 1834 .61 .67 .54 .54 .67 .74 .59 .71 .80 .71 .62 .45 .45 71 HBUX11a 1616 1918 .42 .51 .47 .46 .69 .82 .61 .48 .37 .40B .43 72 HBUX11b 1616 1904 .49 .55 .63 .62 .71 .76 .60 .52 .52 .52 .16B 73 HBUX14a 1405 1535 .49B .33B .20B .49 .56 74 HBUX14b 1405 1535 .18B .08B .39 .57 .51 Av segment correlation .21 .32 .30 .39 .61 .63 .60 .50 .47 .51 .56 .54 .60 .68 .66 .64 .61 .58 .57 .65 PART 5: CORRELATION OF SERIES BY SEGMENTS: Hey Bear Upper 12:16 Fri 13 Jan 2006 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 2 HBU02a 1776 1944 .73 .62 3 HBU02b 1788 1937 .62 .55 4 HBU04 1736 2002 .86 .83 .70 .72 .71 5 HBU05a 1694 2002 .86 .80 .72 .81 .81 6 HBU05b 1706 2002 .77 .86 .79 .77 .78 7 HBU06 1722 1938 .82 .84 8 HBU07a 1794 2002 .79 .77 .75 .61 .61 9 HBU07b 1794 2002 .85 .80 .68 .56 .57 10 HBU08 1787 1999 .69 .77 .75 .69 11 HBU09a 1740 1938 .72 .68 12 HBU09b 1740 1938 .77 .73 13 HBU10a 1520 1901 .72 15 HBU11b 1821 2002 .46 .60 .41 .31A .31A 16 HBU12a 1698 2002 .82 .82 .63 .64 .64 17 HBU12b 1753 2002 .78 .75 .62 .60 .61 18 HBU13a 1801 1968 .65 .52 .32A 19 HBU13b 1801 1959 .71 .48 .45 20 HBU14a 1615 1921 .49 21 HBU14b 1615 1920 .50 22 HBU15a 1734 2002 .84 .75 .68 .61 .63 23 HBU15b 1706 2002 .84 .84 .69 .62 .62 24 HBU17a 1600 1933 .53 .50 25 HBU17b 1533 1904 .57 26 HBU18a 1602 1903 .81 27 HBU19a 1557 1989 .55 .56 .33B .13B 28 HBU20a 1642 1917 .54 29 HBU20b 1650 1920 .67 30 HBU22a 1816 2002 .82 .83 .77 .78 .75 31 HBU22b 1805 2002 .78 .86 .87 .85 .85 32 HBU23a 1792 2002 .63 .78 .67 .62 .61 33 HBU23b 1887 2002 .78 .76 .78 .66 .66 34 HBU24a 1792 2002 .68 .74 .72 .51 .51 35 HBU24b 1797 2002 .58 .74 .72 .46 .46 36 HBU25a 1684 2002 .82 .73 .59 .52 .54 37 HBU25b 1696 2002 .77 .72 .64 .52 .53 38 HBU25c 1652 2002 .78 .77 .63 .58 .61 39 HBU26a 1763 2002 .83 .82 .80 .74 .72 40 HBU26a 1763 2002 .83 .82 .80 .74 .72 41 HBU27a 1716 2002 .80 .65 .41 .71 .69 42 HBU27b 1713 2002 .83 .75 .62 .74 .74 43 HBU27c 1716 2002 .81 .64 .45 .70 .70 44 HBU28 1808 2002 .88 .91 .91 .82 .81 45 HBU29a 1673 2002 .81 .77 .49B .29B .22B 46 HBU30 1813 2002 .70 .70 .62 .56 .52 47 HBU30a 1560 1936 .71 .49 48 HBU30b 1696 1924 .69 49 HBU31a 1564 1980 .55 .60 .53 .51 50 HBU31b 1610 1959 .57 .55 .60 51 HBU32a 1696 2002 .85 .84 .74 .76 .76 52 HBU32b 1684 2002 .82 .72 .65 .61 .64 55 HBU34a 1776 2002 .54 .72 .71 .76 .75 57 HBUX04a 1808 1978 .67 .78 .61 .63 58 HBUX04b 1808 1977 .76 .71 .61 .59 59 HBUX05a 1634 1934 .46 .45 60 HBUX05b 1634 1926 .56 .57 61 HBUX06a 1630 1919 .65 62 HBUX06b 1630 1916 .59 63 HBUX07a 1659 1925 .37B .39B 64 HBUX07b 1659 1937 .69 .61 67 HBUX09a 1543 1920 .74 68 HBUX09b 1543 1908 .45 71 HBUX11a 1616 1918 .27B 72 HBUX11b 1616 1904 .04B Av segment correlation .68 .70 .64 .62 .64 PART 7: DESCRIPTIVE STATISTICS: Hey Bear Upper 12:16 Fri 13 Jan 2006 Page 12 ----------------------------------------------------------------------------------------------------------------------------------- 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 HBU00 1737 1895 159 6 0 .636 .59 1.66 .320 .830 .203 2.68 .372 -.021 1 2 HBU02a 1776 1944 169 6 2 .441 .82 2.08 .423 .878 .203 2.66 .410 .023 1 3 HBU02b 1788 1937 150 6 2 .444 .88 2.32 .494 .897 .187 2.70 .407 -.023 1 4 HBU04 1736 2002 267 11 1 .692 .69 1.95 .388 .809 .246 2.62 .321 -.053 2 5 HBU05a 1694 2002 309 13 0 .741 .50 1.60 .273 .857 .194 2.49 .307 -.049 4 6 HBU05b 1706 2002 297 12 0 .709 .47 1.64 .270 .885 .207 2.60 .349 -.041 3 7 HBU06 1722 1938 217 9 0 .716 .58 1.26 .165 .610 .192 2.65 .471 -.035 1 8 HBU07a 1794 2002 209 9 3 .620 .56 1.28 .235 .872 .157 2.64 .413 -.045 1 9 HBU07b 1794 2002 209 9 0 .683 .60 1.34 .270 .876 .172 2.47 .305 -.058 1 10 HBU08 1787 1999 213 8 0 .613 .80 2.19 .372 .796 .239 2.70 .522 -.030 1 11 HBU09a 1740 1938 199 8 1 .569 .54 1.55 .368 .902 .226 2.56 .368 -.037 1 12 HBU09b 1740 1938 199 8 0 .626 .54 1.53 .365 .908 .243 2.59 .388 -.022 1 13 HBU10a 1520 1901 382 16 0 .558 .14 .48 .087 .794 .293 2.83 .470 -.002 1 14 HBU10b 1494 1892 399 16 0 .544 .26 .96 .195 .889 .263 2.62 .310 -.022 2 15 HBU11b 1821 2002 182 8 3 .379 .47 2.42 .365 .882 .191 2.60 .328 .001 3 16 HBU12a 1698 2002 305 13 0 .735 .30 1.15 .239 .929 .223 2.59 .327 -.021 2 17 HBU12b 1753 2002 250 10 0 .692 .27 .63 .107 .761 .210 2.59 .384 -.032 1 18 HBU13a 1801 1968 168 6 2 .479 .58 1.44 .427 .941 .201 2.59 .395 -.076 1 19 HBU13b 1801 1959 159 6 0 .556 .45 1.13 .333 .921 .275 2.42 .283 -.051 4 20 HBU14a 1615 1921 307 12 0 .582 .32 .89 .211 .925 .181 2.81 .440 -.061 1 21 HBU14b 1615 1920 306 12 0 .533 .34 1.18 .205 .906 .189 2.73 .439 -.031 1 22 HBU15a 1734 2002 269 11 0 .734 .46 1.17 .210 .826 .200 2.58 .374 -.031 1 23 HBU15b 1706 2002 297 12 0 .736 .45 1.03 .195 .828 .193 2.81 .415 -.012 1 24 HBU17a 1600 1933 334 13 0 .608 .43 .96 .178 .814 .216 2.61 .377 -.003 2 25 HBU17b 1533 1904 372 15 0 .598 .51 1.16 .207 .779 .204 2.50 .272 -.031 1 26 HBU18a 1602 1903 302 12 0 .630 .28 1.16 .146 .776 .241 2.71 .328 -.032 1 27 HBU19a 1557 1989 433 17 3 .504 .35 .99 .160 .811 .217 2.64 .352 -.039 2 28 HBU20a 1642 1917 276 11 0 .618 .36 1.16 .225 .894 .216 2.80 .476 -.023 1 29 HBU20b 1650 1920 271 10 0 .719 .36 1.19 .241 .874 .261 2.72 .415 -.046 1 30 HBU22a 1816 2002 187 8 0 .705 .76 1.70 .262 .801 .174 2.59 .391 -.024 1 31 HBU22b 1805 2002 198 8 0 .723 .76 2.19 .287 .797 .175 2.76 .412 -.026 1 32 HBU23a 1792 2002 211 9 1 .578 .62 1.36 .193 .643 .205 2.74 .375 -.025 2 33 HBU23b 1887 2002 116 5 0 .750 .72 1.46 .188 .483 .197 2.91 .525 -.011 1 34 HBU24a 1792 2002 211 9 1 .586 .64 1.52 .296 .781 .223 2.65 .333 -.022 1 35 HBU24b 1797 2002 206 9 2 .525 .60 1.23 .265 .819 .222 2.72 .327 .011 1 36 HBU25a 1684 2002 319 13 1 .656 .30 .69 .107 .741 .206 2.62 .333 -.029 1 37 HBU25b 1696 2002 307 13 0 .692 .32 .76 .131 .765 .228 2.54 .347 -.022 1 38 HBU25c 1652 2002 351 14 0 .692 .30 .88 .139 .793 .246 2.69 .407 -.034 1 39 HBU26a 1763 2002 240 10 0 .760 .63 1.45 .241 .727 .222 2.63 .402 -.061 2 40 HBU26a 1763 2002 240 10 0 .760 .63 1.45 .241 .727 .222 2.63 .402 -.061 2 41 HBU27a 1716 2002 287 12 0 .659 .41 1.53 .228 .877 .186 2.72 .403 -.033 2 42 HBU27b 1713 2002 290 12 0 .733 .53 1.94 .288 .762 .240 2.75 .411 -.018 2 43 HBU27c 1716 2002 287 12 0 .602 .37 1.03 .176 .832 .215 2.41 .234 -.001 2 44 HBU28 1808 2002 195 8 0 .739 .64 1.73 .276 .704 .249 2.59 .390 -.012 1 45 HBU29a 1673 2002 330 14 6 .555 .41 1.04 .204 .807 .248 2.59 .346 -.023 1 46 HBU30 1813 2002 190 8 0 .617 .51 1.56 .310 .880 .210 2.69 .414 -.004 1 47 HBU30a 1560 1936 377 15 0 .594 .26 .78 .120 .803 .226 2.70 .326 -.014 1 48 HBU30b 1696 1924 229 9 0 .648 .32 .80 .122 .654 .233 2.70 .367 .001 1 PART 7: DESCRIPTIVE STATISTICS: Hey Bear Upper 12:16 Fri 13 Jan 2006 Page 13 ----------------------------------------------------------------------------------------------------------------------------------- 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 HBU31a 1564 1980 417 17 1 .513 .31 .73 .126 .766 .214 2.58 .354 -.044 1 50 HBU31b 1610 1959 350 14 0 .592 .34 .92 .153 .854 .197 2.74 .449 -.039 2 51 HBU32a 1696 2002 307 13 0 .787 .37 .86 .146 .786 .204 2.84 .375 -.019 2 52 HBU32b 1684 2002 319 13 0 .708 .37 .96 .157 .794 .207 2.58 .426 -.032 2 53 HBU33a 1383 1810 428 17 2 .602 .38 1.09 .173 .777 .261 2.69 .439 -.029 1 54 HBU33b 1387 1810 424 17 2 .592 .36 1.01 .155 .754 .256 2.57 .323 -.024 4 55 HBU34a 1776 2002 227 9 0 .573 .63 2.21 .457 .927 .206 2.72 .368 -.007 1 56 HBUX02b 1579 1804 226 9 7 .316 .29 1.18 .194 .831 .294 2.74 .392 -.050 1 57 HBUX04a 1808 1978 171 7 1 .558 .45 .86 .151 .652 .215 2.57 .397 -.027 1 58 HBUX04b 1808 1977 170 7 1 .629 .44 .71 .122 .607 .195 2.52 .321 -.011 1 59 HBUX05a 1634 1934 301 12 0 .546 .48 1.66 .318 .872 .225 2.71 .293 .000 1 60 HBUX05b 1634 1926 293 12 0 .548 .42 1.30 .289 .904 .231 2.61 .324 -.022 2 61 HBUX06a 1630 1919 290 11 1 .627 .33 .99 .206 .800 .247 2.69 .419 -.051 1 62 HBUX06b 1630 1916 287 11 1 .591 .32 1.05 .209 .872 .244 2.58 .365 -.028 1 63 HBUX07a 1659 1925 267 11 2 .542 .24 .82 .161 .801 .285 2.72 .470 -.017 1 64 HBUX07b 1659 1937 279 11 0 .592 .25 1.11 .172 .861 .277 2.69 .325 -.037 3 65 HBUX08a 1566 1832 267 11 2 .582 .34 1.02 .146 .700 .235 2.57 .339 -.031 1 66 HBUX08b 1566 1885 320 13 0 .620 .30 .92 .183 .847 .246 2.71 .307 -.018 1 67 HBUX09a 1543 1920 378 15 0 .660 .51 1.09 .212 .796 .199 2.50 .302 -.024 3 68 HBUX09b 1543 1908 366 15 1 .558 .35 1.10 .169 .811 .205 2.53 .318 -.009 1 69 HBUX10a 1515 1820 306 12 0 .650 .31 1.16 .225 .858 .265 2.97 .365 -.009 1 70 HBUX10b 1515 1834 320 13 0 .616 .34 1.15 .211 .840 .241 2.70 .403 -.036 1 71 HBUX11a 1616 1918 303 12 2 .465 .32 1.25 .207 .897 .217 2.65 .366 -.029 1 72 HBUX11b 1616 1904 289 12 2 .476 .29 1.09 .209 .909 .247 2.68 .410 -.019 1 73 HBUX14a 1405 1535 131 5 3 .441 .26 1.57 .185 .709 .291 2.82 .456 -.084 1 74 HBUX14b 1405 1535 131 5 2 .353 .23 1.90 .194 .545 .294 2.97 .410 -.019 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 19947 807 58 .611 .42 2.42 .216 .814 .225 2.97 .373 -.027