Obsidian Lava Flow, Oregon - or088 Additional Site Information Emily K. Heyerdahl Purpose of Collection: Climatology - temperature analyses Cores are stored at: Fire Sciences Laboratory Rocky Mountain Research Station 5775 US West Highway 10 Missoula, Montana 59808 Notes: These cores were collected in the Three Sisters Wilderness Area of the west central Cascade Mountains from October 11 to 15, 1991 by Emily K. Heyerdahl. Additional metadata available from http://www.fs.fed.us/rm/data_archive/dataaccess/OR_CascadeMtns_hemlock_tree-ring_widths.shtml COFECHA output: Chronology file name : OR088.CRN Measurement file name : OR088.RWL Date checked : 05MAR08 Checked by : B. Bauer Beginning year : 1188 Ending year : 1990 Principal investigators: Emily K. Heyerdahl Site name : Obsidian Lava Flow Site location : Oregon Species information : TSME MOUNTAIN HEMLOCK Latitude : 4411 Longitude : -12150 Elevation : 1700M Series intercorrelation: 0.608 Avg mean sensitivity : 0.247 Avg standard deviation : 0.213 Avg autocorrelation : 0.686 Number dated series : 36 Segment length tested : 50 Number problem segments: 14 Pct problem segments : 2.41 PART 5: CORRELATION OF SERIES BY SEGMENTS: Obsidian Lava Flow 12:04 Wed 05 Mar 2008 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 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 OLF2B 1570 1949 .43 .37 .30A .42 .38 .62 .61 .45 .43 .67 .68 .59 2 OLF3A-1 1400 1699 .71 .50 .28A .34 .41 .52 .65 .56 .71 .66 .50 3 OLF3A-2 1730 1990 .48 .58 .44 .50 .62 4 OLF3B 1370 1990 .56 .57 .73 .59 .53 .63 .49 .41 .41 .44 .63 .61 .47 .53 .57 .53 .48 .48 .53 .62 5 OLF4A 1800 1990 .71 .66 6 OLF5B 1460 1970 .39 .50 .55 .72 .76 .73 .71 .76 .80 .66 .47 .36 .36 .57 .68 .60 7 OLF6A 1668 1990 .83 .79 .74 .66 .60 .78 .83 .78 8 OLF6B 1774 1990 .84 .85 .88 .75 9 OLF8A 1443 1990 .53 .49 .61 .63 .70 .78 .54 .64 .78 .71 .56 .61 .66 .61 .70 .84 .73 10 OLF8B 1435 1990 .67 .50 .52 .61 .42 .40 .58 .72 .75 .75 .80 .82 .69 .63 .87 .86 .70 11 OLF9A 1730 1990 .59 .58 .84 .82 .62 12 OLF10A 1517 1990 .73 .78 .71 .63 .69 .64 .54 .66 .77 .54 .49 .83 .79 .64 13 OLF11A 1650 1990 .60 .67 .61 .54 .58 .78 .79 .59 14 OLF11B 1562 1990 .55 .53 .47 .60 .60 .58 .60 .45 .45 .77 .72 .65 15 OLF12A 1673 1990 .55 .54 .56 .61 .65 .78 .77 .74 16 OLF12B 1500 1990 .56 .50 .51 .57 .59 .63 .57 .58 .26A .30A .57 .65 .76 .76 17 OLF13A 1550 1990 .74 .67 .75 .76 .66 .54 .58 .46 .51 .83 .85 .68 18 OLF13B 1551 1990 .77 .75 .66 .66 .73 .65 .47 .54 .73 .69 .70 .72 19 OLF14A 1188 1909 .36 .26A .26A .39 .25A .20B .34 .37 .58 .70 .77 .72 .63 .66 .66 .34 .33 .35 .43 .53 20 OLF16A 1549 1899 .74 .72 .57 .73 .79 .72 .66 .64 .61 .42 .36 .51 .55 21 OLF17A 1660 1990 .45 .36 .66 .69 .59 .70 .73 .70 22 OLF17B 1675 1990 .60 .70 .63 .61 .86 .89 .81 23 OLF18A 1599 1900 .46 .44 .61 .68 .68 .56 .52 .65 .82 .80 .68 24 OLF18B 1647 1990 .73 .71 .58 .32A .32A .51 .77 .80 .72 25 OLF19A 1524 1990 .51 .52 .74 .63 .67 .75 .79 .69 .55 .47 .54 .76 .74 .70 26 OLF19B-1 1490 1703 .37 .24A .25A .42 .41 .70 .76 .64 .62 27 OLF19B-2 1740 1990 .39 .31A .59 .77 .69 28 OLF20A 1388 1990 .53 .65 .68 .71 .70 .61 .48 .46 .57 .73 .78 .78 .76 .64 .50 .50 .80 .79 .53 29 OLF20B 1590 1900 .44 .61 .75 .71 .63 .63 .51 .43 .64 .64 .55 30 OLF21A 1394 1899 .66 .64 .75 .67 .40 .38 .52 .68 .66 .66 .69 .63 .60 .54 .49 .43 .64 .67 .50 31 OLF22A 1572 1990 .63 .63 .62 .69 .45 .45 .54 .50 .54 .83 .85 .71 32 OLF22B 1579 1990 .55 .67 .79 .64 .45 .45 .52 .45 .53 .66 .65 33 OLF25A 1400 1990 .46 .52 .59 .59 .58 .64 .51 .43 .42 .57 .51 .31A .53 .65 .64 .72 .74 .62 34 OLF25B 1400 1990 .38 .69 .61 .56 .66 .59 .56 .59 .57 .55 .58 .66 .67 .46 .35 .66 .68 .62 35 OLF26A 1430 1990 .58 .51 .42 .47 .56 .45 .39 .42 .54 .45 .39 .40 .56 .53 .49 .65 .72 36 OLF26B 1527 1990 .68 .49 .40 .57 .65 .60 .73 .72 .58 .59 .52 .62 .74 Av segment correlation .46 .51 .55 .59 .50 .49 .52 .55 .59 .55 .62 .68 .62 .60 .58 .52 .53 .68 .73 .66 PART 5: CORRELATION OF SERIES BY SEGMENTS: Obsidian Lava Flow 12:04 Wed 05 Mar 2008 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 1850 1875 1900 1925 1950 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 OLF2B 1570 1949 .48 .40 .35 3 OLF3A-2 1730 1990 .60 .59 .43 .49 .50 4 OLF3B 1370 1990 .73 .66 .58 .53 .42 5 OLF4A 1800 1990 .65 .74 .72 .74 .77 6 OLF5B 1460 1970 .65 .71 .53 .43 7 OLF6A 1668 1990 .77 .82 .76 .62 .55 8 OLF6B 1774 1990 .72 .79 .54 .34 .46 9 OLF8A 1443 1990 .69 .74 .52 .40 .44 10 OLF8B 1435 1990 .74 .76 .64 .50 .48 11 OLF9A 1730 1990 .63 .69 .45 .34 .39 12 OLF10A 1517 1990 .85 .80 .68 .62 .46 13 OLF11A 1650 1990 .62 .72 .48 .43 .56 14 OLF11B 1562 1990 .77 .80 .59 .56 .61 15 OLF12A 1673 1990 .76 .70 .63 .65 .52 16 OLF12B 1500 1990 .67 .64 .63 .70 .67 17 OLF13A 1550 1990 .64 .70 .55 .46 .45 18 OLF13B 1551 1990 .66 .73 .67 .57 .58 19 OLF14A 1188 1909 .55 .65 20 OLF16A 1549 1899 .40 21 OLF17A 1660 1990 .83 .82 .54 .50 .55 22 OLF17B 1675 1990 .83 .84 .61 .62 .67 23 OLF18A 1599 1900 .69 .69 24 OLF18B 1647 1990 .76 .79 .63 .64 .66 25 OLF19A 1524 1990 .79 .77 .58 .62 .53 27 OLF19B-2 1740 1990 .73 .74 .49 .49 .52 28 OLF20A 1388 1990 .59 .64 .59 .64 .60 29 OLF20B 1590 1900 .54 .56 30 OLF21A 1394 1899 .48 31 OLF22A 1572 1990 .80 .79 .50 .47 .42 32 OLF22B 1579 1990 .49 .38 .42 .41 .36 33 OLF25A 1400 1990 .59 .51 .47 .55 .51 34 OLF25B 1400 1990 .67 .58 .56 .68 .57 35 OLF26A 1430 1990 .56 .48 .54 .68 .57 36 OLF26B 1527 1990 .57 .39 .40 .56 .49 Av segment correlation .66 .68 .56 .54 .53 PART 7: DESCRIPTIVE STATISTICS: Obsidian Lava Flow 12:04 Wed 05 Mar 2008 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 OLF2B 1570 1949 380 15 1 .504 .45 1.58 .202 .821 .196 2.70 .367 -.024 1 2 OLF3A-1 1400 1699 300 11 1 .562 .34 .95 .174 .705 .282 2.63 .381 -.027 1 3 OLF3A-2 1730 1990 261 10 0 .532 .24 .54 .097 .494 .332 2.72 .374 -.010 1 4 OLF3B 1370 1990 621 25 0 .540 .30 1.15 .178 .774 .302 2.77 .371 -.011 1 5 OLF4A 1800 1990 191 7 0 .706 .65 1.33 .187 .452 .228 2.60 .342 -.026 1 6 OLF5B 1460 1970 511 20 0 .591 .51 1.47 .261 .691 .339 2.64 .318 -.013 3 7 OLF6A 1668 1990 323 13 0 .743 .91 1.93 .324 .723 .222 2.59 .358 -.009 1 8 OLF6B 1774 1990 217 9 0 .699 .86 1.52 .222 .589 .196 2.49 .350 .000 1 9 OLF8A 1443 1990 548 22 0 .655 .47 1.18 .188 .554 .306 2.62 .384 .001 4 10 OLF8B 1435 1990 556 22 0 .667 .51 1.07 .165 .642 .220 2.63 .333 -.035 1 11 OLF9A 1730 1990 261 10 0 .641 .55 1.49 .283 .743 .280 2.57 .325 -.035 2 12 OLF10A 1517 1990 474 19 0 .679 .56 1.05 .172 .603 .215 2.77 .336 -.016 3 13 OLF11A 1650 1990 341 13 0 .622 .46 1.07 .165 .721 .217 2.69 .399 -.024 2 14 OLF11B 1562 1990 429 17 0 .619 .52 1.46 .246 .809 .219 2.76 .441 -.033 3 15 OLF12A 1673 1990 318 13 0 .660 .72 1.77 .299 .728 .222 2.78 .342 -.012 2 16 OLF12B 1500 1990 491 19 2 .579 .42 1.26 .223 .833 .252 2.52 .299 -.008 1 17 OLF13A 1550 1990 441 17 0 .664 .57 1.70 .238 .535 .306 2.63 .388 -.003 1 18 OLF13B 1551 1990 440 17 0 .673 .42 1.21 .192 .571 .318 2.64 .405 -.015 6 19 OLF14A 1188 1909 722 22 4 .459 .40 1.08 .179 .820 .220 2.64 .359 -.006 1 20 OLF16A 1549 1899 351 14 0 .576 .44 1.62 .169 .693 .228 2.44 .280 -.007 1 21 OLF17A 1660 1990 331 13 0 .650 .93 1.78 .279 .486 .257 2.50 .380 .021 1 22 OLF17B 1675 1990 316 12 0 .738 .78 1.53 .228 .385 .272 2.55 .359 .030 5 23 OLF18A 1599 1900 302 13 0 .664 .64 1.66 .260 .599 .306 2.64 .359 -.028 2 24 OLF18B 1647 1990 344 14 2 .661 .64 1.32 .213 .547 .280 2.37 .259 -.014 1 25 OLF19A 1524 1990 467 19 0 .646 .52 1.45 .219 .566 .305 2.55 .347 -.013 2 26 OLF19B-1 1490 1703 214 9 2 .512 .63 1.77 .300 .659 .288 2.63 .376 -.041 2 27 OLF19B-2 1740 1990 251 10 1 .581 .41 .94 .161 .630 .271 2.49 .331 -.025 1 28 OLF20A 1388 1990 603 24 0 .643 .55 1.33 .269 .840 .241 2.71 .329 -.010 1 29 OLF20B 1590 1900 311 13 0 .635 .67 1.17 .186 .530 .204 2.46 .254 -.032 1 30 OLF21A 1394 1899 506 20 0 .586 .42 1.14 .188 .773 .231 2.51 .281 -.023 1 31 OLF22A 1572 1990 419 17 0 .646 .77 1.90 .265 .733 .193 2.55 .365 -.011 3 32 OLF22B 1579 1990 412 16 0 .539 .61 1.52 .224 .726 .196 2.74 .332 .006 1 33 OLF25A 1400 1990 591 23 1 .546 .59 1.20 .193 .731 .184 2.65 .383 -.031 1 34 OLF25B 1400 1990 591 23 0 .573 .53 1.08 .207 .793 .191 2.61 .348 -.011 1 35 OLF26A 1430 1990 561 22 0 .523 .53 1.29 .215 .808 .192 2.61 .284 .007 1 36 OLF26B 1527 1990 464 18 0 .569 .46 1.44 .191 .687 .250 2.75 .307 .001 6 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 14859 581 14 .608 .54 1.93 .213 .686 .247 2.78 .346 -.013