Twin Peaks, Idaho - ID009 Additional Site Information Dana L. Perkins Purpose of Collection: Ecology - insect outbreaks Standardized with smoothing splines or neg exp. (see Perkins and Swetnam 1996) Cores Located at: Forestry and Range Sciences Laboratory Pacific Northwest Research Station, USDA-FS 1401 Gekeler Lane La Grande, OR 97850 Publication: Perkins, D. L. and Swetnam, T.W. 1996. A dendroecological assessment of whitebark pine in the Sawtooth - Salmon River region, Idaho. Canadian Journal of Forest Research. 26:2123-2133. We dated a historic mountain pine beetle epidemic in climax whitebark pine using dendrochronology methods, and demonstrated utility of whitebark for dendroclimate reconstructions COFECHA output: Chronology file name : ID009.CRN Measurement file name : ID009.RWL Date checked : 19MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 965 Ending year : 1992 Principal investigators: Dana L. Perkins Site name : Twin Peaks Site location : Idaho Species information : PIAL WHITEBARK PINE Latitude : 4436 Longitude : -11427 Elevation : 2800M Series intercorrelation: 0.623 Avg mean sensitivity : 0.242 Avg standard deviation : 0.152 Avg autocorrelation : 0.680 Number dated series : 29 Segment length tested : 50 Number problem segments: 14 Pct problem segments : 3.44 PART 5: CORRELATION OF SERIES BY SEGMENTS: id009.rwl 17:12 Sat 19 Mar 2005 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 1025 1050 1075 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1074 1099 1124 1149 1174 1199 1224 1249 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TWP05B 965 1668 .32A .36 .60 .58 .61 .58 .76 .77 .56 .71 .66 .58 .56 .67 .83 .89 .59 .51 .68 .76 2 TWP05C 1091 1668 .51 .56 .61 .66 .71 .57 .43 .57 .59 .65 .56 .57 .76 .68 .54 .61 .44 .61 3 TWP07A 1163 1922 .58 .65 .80 .66 .63 .55 .56 .63 .72 .77 .71 .76 .73 .80 .77 6 TWP10A1 1462 1992 .68 .71 .69 8 TWP10EE 1140 1702 .40 .42 .65 .65 .49 .49 .53 .66 .60 .63 .83 .82 .53 .60 .74 .69 10 TWP11A 1026 1514 .32A .31B .33B .29A .49 .56 .68 .54 .41 .53 .53 .62 .61 .69 .72 .63 .61 .72 .70 12 TWP11B 1245 1445 .47 .50 .49 .60 .56 .61 .63 .70 13 TWP11B1 1494 1641 .68 .64 14 TWP11C 1322 1710 .70 .70 .61 .78 .76 .51 .50 .75 .76 15 TWP13B 1474 1910 .56 .55 .58 16 TWP13C 1442 1838 .61 .57 .62 .78 17 TWP14A 1496 1922 .41 .39 20 TWP15C 1524 1688 .61 26 TWP21A 1513 1874 .52 27 TWP21B 1233 1886 .28A .22B .33 .34 .39 .62 .70 .56 .51 .58 .53 .58 28 TWM05A 1218 1928 .45 .38 .29A .33B .55 .51 .55 .78 .85 .63 .59 .66 .70 Av segment correlation .32 .33 .48 .47 .53 .56 .69 .63 .46 .49 .50 .58 .57 .63 .76 .73 .59 .60 .64 .65 PART 5: CORRELATION OF SERIES BY SEGMENTS: id009.rwl 17:12 Sat 19 Mar 2005 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 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TWP05B 965 1668 .60 .41 .66 .72 .70 2 TWP05C 1091 1668 .68 .39 .40 .52 .61 3 TWP07A 1163 1922 .61 .64 .81 .75 .63 .72 .77 .63 .60 .73 .83 .67 .42 .61 .61 4 TWP08A 1890 1986 .38 .46 .57 .66 5 TWP08BB 1880 1991 .40B .39 .58 .47 6 TWP10A1 1462 1992 .55 .57 .47 .54 .63 .73 .81 .74 .64 .59 .63 .78 .67 .39 .51 .59 .63 .61 7 TWP10C 1725 1991 .64 .59 .34 .54 .66 .43 .56 .58 .57 .49 8 TWP10EE 1140 1702 .57 .55B .80 .84 .74 .78 .76 9 TWP10E2 1800 1992 .57 .66 .60 .59 .57 .67 .67 11 TWP11A1 1626 1688 .56 .70 13 TWP11B1 1494 1641 .55 .41 .63 .78 14 TWP11C 1322 1710 .49 .43 .75 .72 .70 .76 .74 15 TWP13B 1474 1910 .59 .61 .69 .80 .67 .68 .78 .69 .63 .67 .73 .82 .74 .60 .54 16 TWP13C 1442 1838 .74 .71 .81 .74 .58 .62 .66 .65 .68 .73 .85 .86 17 TWP14A 1496 1922 .41 .34 .59 .66 .60 .70 .77 .72 .46 .44 .58 .70 .50 .37 .57 18 TWP15A 1640 1992 .62 .62 .53 .52 .72 .75 .70 .79 .68 .55 .62 .63 .65 .60 19 TWP15B 1550 1992 .49 .75 .86 .86 .85 .85 .75 .75 .73 .57 .71 .73 .60 .66 .68 .69 .65 20 TWP15C 1524 1688 .61 .75 .78 .85 .84 .85 21 TWP15C1 1695 1992 .57 .70 .76 .74 .38 .64 .72 .44 .50 .59 .60 .48 22 TWP17A 1838 1991 .60 .53 .51 .35 .36B .33 23 TWP17B 1844 1992 .40 .53 .60 .48 .60 .58 24 TWP17C 1844 1992 .45 .48 .48 .47 .48 .32A 25 TWP20B 1690 1848 .56 .45 .59 .71 .67 .65 26 TWP21A 1513 1874 .48 .32A .34 .51 .67 .79 .84 .83 .67 .75 .76 .79 .74 27 TWP21B 1233 1886 .57 .46 .57 .76 .81 .69 .79 .72 .68 .81 .79 .71 .55 .51 28 TWM05A 1218 1928 .65 .54 .74 .80 .77 .72 .72 .69 .71 .67 .64 .72 .57 .57 .55 .52 29 TWM05C 1569 1929 .75 .76 .82 .83 .72 .70 .68 .65 .58 .64 .74 .53 .53 .62 .65 Av segment correlation .58 .52 .66 .73 .70 .73 .72 .67 .65 .68 .65 .71 .60 .52 .54 .53 .58 .53 PART 7: DESCRIPTIVE STATISTICS: id009.rwl 17:12 Sat 19 Mar 2005 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 TWP05B 965 1668 704 25 1 .630 .50 1.39 .202 .661 .270 2.61 .351 .002 1 2 TWP05C 1091 1668 578 23 0 .587 .50 1.46 .209 .725 .258 2.63 .332 -.017 1 3 TWP07A 1163 1922 760 30 0 .667 .52 1.21 .167 .655 .225 2.45 .278 -.026 1 4 TWP08A 1890 1986 97 4 0 .531 1.07 1.77 .242 .568 .170 2.57 .404 .007 1 5 TWP08BB 1880 1991 112 4 1 .454 1.44 2.24 .284 .634 .138 2.57 .437 -.032 1 6 TWP10A1 1462 1992 531 21 0 .636 .22 .66 .102 .736 .271 2.76 .383 .000 1 7 TWP10C 1725 1991 267 10 0 .525 .29 .72 .143 .891 .191 2.49 .336 -.012 1 8 TWP10EE 1140 1702 563 23 1 .661 .46 1.42 .253 .901 .188 2.40 .237 -.009 1 9 TWP10E2 1800 1992 193 7 0 .592 .19 .41 .070 .660 .240 2.54 .382 -.020 1 10 TWP11A 1026 1514 489 19 4 .523 .36 1.10 .172 .811 .240 2.51 .316 -.018 1 11 TWP11A1 1626 1688 63 2 0 .633 .38 .58 .087 .418 .207 2.44 .423 -.047 4 12 TWP11B 1245 1445 201 8 0 .573 .17 .41 .052 .449 .255 2.60 .417 -.012 1 13 TWP11B1 1494 1641 148 6 0 .632 .18 .42 .078 .622 .286 2.72 .507 -.071 2 14 TWP11C 1322 1710 389 16 0 .677 .25 .46 .070 .385 .234 2.48 .328 -.011 1 15 TWP13B 1474 1910 437 18 0 .672 .28 .63 .108 .647 .248 2.64 .333 -.002 2 16 TWP13C 1442 1838 397 16 0 .707 .29 .93 .170 .836 .263 2.46 .277 -.019 1 17 TWP14A 1496 1922 427 17 0 .559 .39 .74 .103 .640 .180 2.64 .319 -.003 1 18 TWP15A 1640 1992 353 14 0 .656 .30 .93 .198 .772 .361 2.64 .399 -.045 1 19 TWP15B 1550 1992 443 17 0 .725 .29 .64 .126 .661 .270 2.52 .345 -.018 1 20 TWP15C 1524 1688 165 7 0 .757 .19 .37 .057 .339 .287 2.41 .346 .025 1 21 TWP15C1 1695 1992 298 12 0 .586 .29 .81 .109 .713 .224 2.65 .406 -.062 1 22 TWP17A 1838 1991 154 6 1 .418 1.20 2.95 .545 .869 .161 2.49 .322 -.092 1 23 TWP17B 1844 1992 149 6 0 .524 .98 2.12 .403 .863 .169 2.54 .379 -.072 1 24 TWP17C 1844 1992 149 6 1 .395 .93 1.70 .315 .795 .167 2.71 .418 .050 1 25 TWP20B 1690 1848 159 6 0 .611 .17 .45 .069 .399 .337 2.61 .373 -.050 1 26 TWP21A 1513 1874 362 14 1 .669 .16 .37 .058 .447 .326 2.59 .377 -.053 1 27 TWP21B 1233 1886 654 26 2 .591 .18 .39 .071 .645 .273 2.63 .334 -.020 1 28 TWM05A 1218 1928 711 29 2 .642 .41 .98 .137 .716 .205 2.50 .281 -.010 1 29 TWM05C 1569 1929 361 15 0 .695 .46 .97 .129 .639 .203 2.44 .329 -.019 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 10314 407 14 .623 .39 2.95 .152 .680 .242 2.76 .337 -.019