Windy Ridge, Alaska, USA - AK070 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 : AK070.CRN Measurement file name : AK070.RWL Date checked : 13JAN06 Checked by : B. Bauer Beginning year : 1556 Ending year : 2002 Principal investigators: R. D'Arrigo E. Mashig D. Frank R. Wilson G. Jacoby Site name : Windy Ridge Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : +6511 Longitude : -16213 Elevation : 251M Series intercorrelation: 0.655 Avg mean sensitivity : 0.228 Avg standard deviation : 0.203 Avg autocorrelation : 0.747 Number dated series : 49 Segment length tested : 50 Number problem segments: 15 Pct problem segments : 3.01 PART 5: CORRELATION OF SERIES BY SEGMENTS: Windy Ridge 12:22 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 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WR00 1712 2002 .47 .50 .34 .25B .22B .40 .59 .75 .87 .78 .63 .61 2 WR01a 1876 2002 .38 .56 .53 .44 .44 3 WR01b 1874 2002 .45 .45 .70 .69 .51 .52 4 WR02a 1829 2002 .44 .51 .65 .77 .72 .74 .72 5 WR02b 1849 2002 .32A .55 .81 .80 .60 .56 .54 6 WR03a 1815 2002 .75 .75 .81 .81 .73 .67 .52 .49 7 WR03b 1806 2002 .81 .79 .82 .86 .80 .66 .74 .76 8 WR03c 1797 2002 .70 .72 .66 .71 .78 .76 .77 .77 .74 9 WR04a 1854 2002 .75 .83 .73 .48 .74 .74 10 WR04b 1800 2002 .61 .61 .72 .83 .79 .68 .69 .69 11 WR05a 1826 2002 .28B .34 .38 .57 .59 .59 .58 12 WR05b 1826 2002 .18B .36 .40 .57 .61 .66 .64 13 WR06a 1752 1998 .78 .64 .44 .51 .65 .72 .71 .54 .57 14 WR06b 1752 1998 .82 .78 .64 .60 .77 .83 .78 .66 .65 15 WR07a 1696 2002 .55 .60 .69 .68 .56 .34B .42 .74 .75 .65 .54 .54 .50 16 WR07b 1671 2002 .54 .54 .73 .76 .74 .62 .46 .50 .53 .61 .77 .68 .66 .66 17 WR08a 1747 2002 .28B .21B .50 .66 .65 .56 .70 .82 .63 .51 .47 18 WR08b 1747 2002 .53 .50 .63 .76 .80 .82 .84 .81 .63 .48 .45 19 WR09a 1670 2002 .69 .73 .80 .71 .67 .60 .44 .55 .81 .85 .84 .77 .79 .78 20 WR09b 1696 2002 .78 .77 .68 .51 .68 .70 .63 .60 .65 .78 .72 .72 .73 21 WR10a 1690 2002 .49 .60 .63 .67 .47 .39 .62 .79 .76 .66 .59 .67 .63 22 WR10b 1697 2002 .38 .44 .45 .55 .70 .61 .49 .76 .87 .78 .65 .83 .82 23 WR11a 1705 2002 .76 .75 .76 .77 .75 .77 .84 .89 .87 .75 .83 .83 24 WR11b 1705 2002 .70 .74 .79 .73 .69 .75 .82 .85 .85 .71 .74 .73 25 WR12a 1764 1941 .80 .76 .72 .75 .81 .85 .85 26 WR12b 1737 2002 .56 .59 .69 .82 .83 .89 .85 .75 .67 .67 .63 27 WR13a 1703 1936 .65 .71 .71 .65 .65 .79 .76 .77 .73 28 WR13b 1689 1937 .65 .76 .79 .75 .65 .59 .79 .83 .81 .79 29 WR14a 1700 2002 .64 .71 .71 .63 .55 .67 .73 .72 .70 .76 .73 .73 30 WR14b 1556 2002 .31A .27A .57 .58 .51 .72 .66 .62 .75 .72 .66 .79 .77 .71 .70 .69 .66 31 WR15a 1760 2002 .67 .73 .67 .58 .80 .83 .79 .57 .52 .49 32 WR15b 1735 2002 .73 .61 .67 .56 .52 .59 .59 .53 .36B .53 .56 33 WR21a 1752 2002 .37 .33B .41 .47 .47 .49 .65 .63 .42 .43 34 WR21b 1847 2002 .40 .40 .59 .60 .30B .34 .34 35 WR22 1819 2002 .72 .65 .77 .85 .87 .67 .57 .54 36 WR23 1876 2002 .58 .84 .79 .69 .67 37 WR24a 1654 2002 .67 .63 .72 .80 .84 .86 .81 .60 .62 .75 .77 .68 .75 .73 38 WR24b 1632 2002 .42 .55 .59 .75 .80 .80 .78 .71 .64 .73 .83 .82 .72 .70 .71 39 WR26a 1606 2002 .58 .66 .60 .52 .75 .76 .77 .71 .59 .62 .65 .65 .66 .56 .48 .43 40 WR26b 1610 2002 .65 .71 .77 .71 .67 .73 .84 .76 .67 .69 .81 .83 .80 .57 .28A .27A 41 WR28a 1720 2002 .51 .56 .60 .80 .81 .72 .67 .67 .59 .43 .50 .50 42 WR28b 1697 1762 .64 .67 .53 43 WR28b 1770 2001 .73 .69 .71 .66 .64 .75 .70 .47 .41 .42 44 WR29a 1723 2002 .58 .64 .68 .77 .74 .72 .84 .87 .83 .78 .73 .72 45 WR29b 1723 2002 .58 .64 .68 .77 .74 .72 .84 .87 .83 .78 .73 .72 46 WR30a 1590 2002 .37 .36 .55 .68 .52 .44 .55 .61 .56 .40 .46 .76 .81 .83 .71 .58 .56 47 WR30b 1830 2002 .51 .69 .66 .50 .38 .47 .44 48 WR31a 1829 2002 .69 .83 .83 .75 .83 .78 .76 49 WR31b 1831 2002 .60 .56 .66 .71 .69 .51 .49 Av segment correlation .34 .47 .58 .64 .59 .65 .65 .66 .66 .63 .60 .69 .73 .74 .64 .61 .60 PART 7: DESCRIPTIVE STATISTICS: Windy Ridge 12:22 Fri 13 Jan 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 WR00 1712 2002 291 12 2 .560 .44 .92 .189 .826 .194 2.92 .387 -.027 1 2 WR01a 1876 2002 127 5 0 .416 .98 2.03 .356 .757 .205 2.75 .393 -.038 1 3 WR01b 1874 2002 129 6 0 .542 1.06 1.84 .335 .744 .193 2.52 .447 -.062 1 4 WR02a 1829 2002 174 7 0 .630 .85 1.97 .316 .670 .233 2.79 .395 .000 1 5 WR02b 1849 2002 154 7 1 .615 .92 1.79 .298 .719 .219 2.60 .400 -.031 4 6 WR03a 1815 2002 188 8 0 .712 .37 .80 .109 .408 .255 2.63 .380 -.037 2 7 WR03b 1806 2002 197 8 0 .786 .60 1.51 .261 .793 .217 2.88 .485 -.020 2 8 WR03c 1797 2002 206 9 0 .729 .44 .82 .156 .696 .215 2.78 .450 -.011 2 9 WR04a 1854 2002 149 6 0 .721 .59 1.36 .227 .651 .248 2.63 .397 .018 2 10 WR04b 1800 2002 203 8 0 .713 .73 2.00 .295 .721 .218 2.59 .413 -.010 1 11 WR05a 1826 2002 177 7 1 .438 .69 1.95 .302 .790 .211 2.78 .396 .037 1 12 WR05b 1826 2002 177 7 1 .424 .70 1.55 .253 .703 .211 2.83 .479 .039 1 13 WR06a 1752 1998 247 9 0 .640 .40 .96 .128 .696 .184 2.56 .360 -.025 2 14 WR06b 1752 1998 247 9 0 .733 .42 .95 .178 .820 .199 2.53 .372 -.023 1 15 WR07a 1696 2002 307 13 1 .595 .20 .89 .114 .788 .280 2.55 .308 -.046 4 16 WR07b 1671 2002 332 14 0 .624 .42 1.17 .201 .774 .230 2.57 .345 -.031 1 17 WR08a 1747 2002 256 11 2 .559 .47 1.09 .155 .605 .223 2.69 .438 .000 2 18 WR08b 1747 2002 256 11 0 .677 .49 1.22 .228 .802 .223 2.78 .491 -.040 1 19 WR09a 1670 2002 333 14 0 .726 .42 1.06 .207 .823 .210 2.53 .274 -.028 4 20 WR09b 1696 2002 307 13 0 .678 .42 .95 .166 .740 .227 2.56 .319 -.051 1 21 WR10a 1690 2002 313 13 0 .633 .33 1.16 .206 .859 .270 2.54 .276 -.047 1 22 WR10b 1697 2002 306 13 0 .669 .33 1.07 .147 .792 .219 2.61 .356 -.025 1 23 WR11a 1705 2002 298 12 0 .802 .26 .93 .151 .757 .309 2.65 .382 -.042 1 24 WR11b 1705 2002 298 12 0 .765 .44 1.28 .191 .667 .278 2.60 .355 -.013 2 25 WR12a 1764 1941 178 7 0 .789 .39 .83 .155 .693 .247 2.70 .407 -.028 1 26 WR12b 1737 2002 266 11 0 .731 .34 .79 .133 .697 .246 2.53 .336 -.036 1 27 WR13a 1703 1936 234 9 0 .698 .73 1.95 .382 .764 .255 2.59 .332 -.033 2 28 WR13b 1689 1937 249 10 0 .734 .70 1.65 .341 .789 .233 2.71 .406 -.011 2 29 WR14a 1700 2002 303 12 0 .676 .38 1.01 .161 .730 .212 2.74 .366 -.037 2 30 WR14b 1556 2002 447 17 2 .634 .32 1.01 .199 .883 .235 2.70 .311 .005 2 31 WR15a 1760 2002 243 10 0 .675 .37 .84 .137 .639 .233 2.50 .347 -.040 2 32 WR15b 1735 2002 268 11 1 .579 .44 1.15 .160 .733 .202 2.83 .400 -.001 2 33 WR21a 1752 2002 251 10 1 .450 .29 .54 .087 .420 .254 2.44 .277 -.004 1 34 WR21b 1847 2002 156 7 1 .434 .44 1.35 .175 .556 .268 2.70 .310 -.062 1 35 WR22 1819 2002 184 8 0 .719 .44 .79 .115 .552 .193 2.71 .390 -.035 1 36 WR23 1876 2002 127 5 0 .651 1.23 2.40 .426 .659 .192 2.61 .480 -.010 2 37 WR24a 1654 2002 349 14 0 .730 .33 .78 .123 .728 .223 2.75 .421 -.024 1 38 WR24b 1632 2002 371 15 0 .695 .30 .78 .125 .796 .206 2.65 .336 -.032 1 39 WR26a 1606 2002 397 16 0 .606 .36 .99 .224 .904 .217 2.75 .372 -.044 1 40 WR26b 1610 2002 393 16 2 .688 .37 1.01 .211 .888 .208 2.79 .400 -.019 2 41 WR28a 1720 2002 283 12 0 .620 .47 1.17 .222 .829 .218 2.75 .409 -.037 1 42 WR28b 1697 1762 66 3 0 .601 8.39 16.75 2.491 .291 .243 2.67 .432 -.083 1 43 WR28b 1770 2001 232 10 0 .623 .46 1.05 .161 .740 .192 2.70 .371 -.038 1 44 WR29a 1723 2002 280 12 0 .748 .41 .95 .163 .746 .222 2.61 .394 -.028 2 45 WR29b 1723 2002 280 12 0 .748 .41 .95 .163 .746 .222 2.61 .394 -.028 2 46 WR30a 1590 2002 413 17 0 .595 .31 .97 .163 .837 .251 2.57 .299 -.030 5 47 WR30b 1830 2002 173 7 0 .555 .41 .88 .131 .721 .176 2.71 .361 -.050 1 48 WR31a 1829 2002 174 7 0 .782 .30 .92 .125 .760 .243 2.46 .336 -.044 3 PART 7: DESCRIPTIVE STATISTICS: Windy Ridge 12:22 Fri 13 Jan 2006 Page 11 ----------------------------------------------------------------------------------------------------------------------------------- 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 WR31b 1831 2002 172 7 0 .592 .20 .52 .091 .779 .273 2.63 .405 .006 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 12161 499 15 .655 .49 16.75 .203 .747 .228 2.92 .371 -.026