Savage River, Alaska - ak103 Additional Site Information Gordon Jacoby, Rosanne D'Arrigo, and Brendan Buckley Notes: Project Title "Synthesis of Three Decades of Research on Tree Growth in Northern Forests in relation to Global Climatic Change" COFECHA output: Chronology file name : AK103.CRN Measurement file name : AK103.RWL Date checked : 09SEP11 Checked by : B. Bauer Beginning year : 1556 Ending year : 1990 Principal investigators: Gordon Jacoby Rosanne D'Arrigo Brendan Buckley Site name : Savage River Site location : Alaska Species information : PCGL WHITE SPRUCE Latitude : 6344 Longitude : -14911 Elevation : 930M Series intercorrelation: 0.610 Avg mean sensitivity : 0.202 Avg standard deviation : 0.184 Avg autocorrelation : 0.782 Number dated series : 34 Segment length tested : 50 Number problem segments: 16 Pct problem segments : 5.10 PART 5: CORRELATION OF SERIES BY SEGMENTS: Savage River 10:47 Fri 09 Sep 2011 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 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 SR01WS 1746 1986 .77 .76 .64 .74 .84 .71 .14B .21B .74 .76 2 SR4SES 1707 1938 .56 .69 .73 .68 .58 .40 .45 .60 .63 3 SR04SES 1665 1795 .44 .42 .60 .66 .59 4 SR8ES 1746 1898 .70 .69 .59 .62 .63 .63 5 SR8WS 1810 1990 .76 .71 .61 .76 .74 .69 .79 6 SR9BS 1814 1990 .77 .78 .62 .60 .76 .59 .62 7 SR09CS 1770 1990 .78 .77 .80 .73 .67 .73 .75 .79 .69 8 SR13BS 1610 1917 .80 .81 .85 .73 .53 .70 .67 .49 .71 .80 .60 .63 9 SR13CS 1595 1990 .86 .83 .82 .83 .76 .76 .77 .60 .47 .61 .69 .54 .63 .64 .71 .77 10 SR14WS 1750 1966 .58 .32A .36 .66 .46 .58 .71 .63 11 SR15AS 1802 1910 .60 .52 .63 .70 12 SR17AS 1771 1889 .77 .75 .72 .65 .70 13 SR17ARS 1759 1866 .79 .79 .83 .81 14 SR18NES 1776 1990 .64 .75 .74 .69 .75 .58 .60 .68 15 SR23AS 1805 1990 .64 .73 .60 .56 .65 .71 .72 16 SR25CS 1714 1990 .67 .70 .82 .75 .74 .69 .65 .66 .58 .70 .68 17 SR25CRS 1708 1955 .70 .79 .80 .80 .85 .83 .78 .75 .72 .72 18 SR50NWS 1773 1936 .46 .48 .42 .40 .52 .50 .47 19 SR51NS 1834 1989 .32B .27B .55 .55 .42 .38B 20 SR54NS 1749 1980 .61 .60 .68 .84 .90 .81 .61 .61 .70 .72 21 SR54EWS 1695 1778 .46 .49 .66 .66 22 TM40BS 1591 1941 .72 .70 .52 .60 .65 .57 .77 .85 .83 .79 .71 .70 .21B .23B 23 TM40BRS 1565 1850 .39 .44 .68 .51 .48 .70 .68 .80 .76 .71 .78 .78 24 TM41DS 1857 1989 .56 .54 .61 .52 .60 25 TM42CS 1610 1990 .54 .70 .69 .40 .41 .68 .70 .64 .66 .78 .71 .70 .77 .73 .74 26 TM43BS 1556 1990 .33A .42 .67 .71 .73 .63 .58 .71 .72 .61 .73 .82 .53 .59 .24B .09B .45 27 ESR2ES 1652 1990 .62 .42 .16B .46 .66 .55 .52 .68 .55 .45 .49 .56 .66 28 ESR2SWS 1727 1916 .63 .68 .41 .35 .45 .41 .46 29 ESR52WS 1585 1905 .66 .61 .69 .74 .51 .49 .50 .51 .44 .47 .59 .51 .47 30 SAV03SS 1688 1988 .70 .69 .76 .71 .60 .65 .76 .74 .75 .73 .64 .72 31 SAV04ES 1791 1988 .64 .68 .73 .47 .47 .28B .17B .20B 32 SAV04SS 1797 1988 .82 .83 .77 .34 .52 .69 .59 .69 33 SAV07NS 1661 1987 .38 .28A .44 .57 .42 .49 .72 .80 .61 .56 .62 .56 .54 34 SAV07SS 1669 1956 .62 .54 .61 .68 .47 .47 .71 .73 .68 .46 .39 .40 Av segment correlation .36 .62 .69 .68 .63 .55 .56 .68 .67 .62 .67 .69 .59 .57 .57 .58 .63 PART 7: DESCRIPTIVE STATISTICS: Savage River 10:47 Fri 09 Sep 2011 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 SR01WS 1746 1986 241 10 2 .588 .24 .63 .087 .690 .218 2.54 .265 -.034 1 2 SR4SES 1707 1938 232 9 0 .578 .29 .62 .102 .737 .192 2.76 .324 -.025 3 3 SR04SES 1665 1795 131 5 0 .528 .36 .76 .149 .827 .179 2.73 .448 -.030 1 4 SR8ES 1746 1898 153 6 0 .641 .30 1.18 .192 .896 .196 2.67 .377 .024 1 5 SR8WS 1810 1990 181 7 0 .720 .41 1.01 .174 .805 .190 2.71 .378 -.033 1 6 SR9BS 1814 1990 177 7 0 .676 .34 .84 .157 .715 .270 2.73 .445 -.002 2 7 SR09CS 1770 1990 221 9 0 .726 .38 .87 .145 .670 .219 2.86 .383 -.013 1 8 SR13BS 1610 1917 308 12 0 .711 .43 .94 .139 .485 .233 2.69 .372 -.015 2 9 SR13CS 1595 1990 396 16 0 .705 .45 1.10 .148 .558 .223 2.60 .323 -.041 2 10 SR14WS 1750 1966 217 8 1 .480 .55 1.27 .207 .839 .176 2.41 .239 -.049 1 11 SR15AS 1802 1910 109 4 0 .639 .61 1.08 .180 .548 .218 2.58 .493 -.025 1 12 SR17AS 1771 1889 119 5 0 .712 .93 1.97 .431 .869 .193 2.55 .453 -.011 1 13 SR17ARS 1759 1866 108 4 0 .792 1.02 2.85 .476 .852 .187 2.74 .435 -.066 1 14 SR18NES 1776 1990 215 8 0 .676 .47 1.36 .210 .709 .257 2.67 .442 .006 1 15 SR23AS 1805 1990 186 7 0 .652 .82 1.85 .349 .860 .191 2.77 .423 .049 1 16 SR25CS 1714 1990 277 11 0 .690 .50 1.84 .310 .894 .185 2.78 .446 .020 1 17 SR25CRS 1708 1955 248 10 0 .761 .49 1.86 .249 .832 .187 2.85 .448 -.036 1 18 SR50NWS 1773 1936 164 7 0 .441 .60 1.38 .218 .636 .230 2.40 .283 -.058 1 19 SR51NS 1834 1989 156 6 3 .439 .27 .58 .132 .732 .264 2.53 .337 .059 1 20 SR54NS 1749 1980 232 10 0 .695 .38 .95 .151 .735 .241 2.69 .392 -.005 1 21 SR54EWS 1695 1778 84 4 0 .581 .62 1.77 .270 .731 .228 2.49 .333 -.025 1 22 TM40BS 1591 1941 351 14 2 .598 .44 1.19 .235 .886 .200 2.49 .248 -.043 1 23 TM40BRS 1565 1850 286 12 0 .610 .24 1.29 .170 .926 .221 2.66 .414 -.012 1 24 TM41DS 1857 1989 133 5 0 .560 .27 .48 .079 .862 .125 2.59 .410 .000 2 25 TM42CS 1610 1990 381 15 0 .655 .25 .63 .118 .793 .239 2.61 .372 -.041 3 26 TM43BS 1556 1990 435 17 3 .495 .36 1.47 .214 .909 .173 2.40 .199 -.049 1 27 ESR2ES 1652 1990 339 13 1 .528 .36 .85 .136 .869 .146 2.57 .315 -.033 1 28 ESR2SWS 1727 1916 190 7 0 .453 .26 .66 .111 .881 .167 2.39 .274 -.039 1 29 ESR52WS 1585 1905 321 13 0 .546 .37 1.58 .285 .935 .176 2.79 .421 -.020 1 30 SAV03SS 1688 1988 301 12 0 .704 .30 .84 .126 .710 .212 2.93 .494 -.032 3 31 SAV04ES 1791 1988 198 8 3 .447 .38 .96 .169 .784 .194 2.37 .246 -.032 1 32 SAV04SS 1797 1988 192 8 0 .645 .37 .98 .155 .759 .192 2.69 .372 -.009 1 33 SAV07NS 1661 1987 327 13 1 .537 .28 .69 .095 .772 .170 2.63 .356 -.019 1 34 SAV07SS 1669 1956 288 12 0 .563 .37 1.21 .193 .795 .208 2.74 .387 .002 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7897 314 16 .610 .40 2.85 .184 .782 .202 2.93 .360 -.021