Deschutes, Oregon - OR051 Additional Site Information James H. Speer and Thomas W. Swetnam Purpose of Collection: Ecology - insect outbreaks Detrend method: 40-year cubic smoothing spline Cores are stored at Laboratory of Tree-Ring Research, Tucson, AZ. This site was collected for a pandora moth outbreak study. We were able to demonstrate that much of the variance in the tree cores was explained by the effects of pandora moth defoliation, therefore, this chronology would not be useful for climate reconstruction. We used a 40-year cubic smoothing spline on the cores to remove long-term climate fluctuations and age trends. References: Speer, J.H. 1997. A dendrochronological record of pandora moth (Coloradia pandora, Blake) outbreaks in central Oregon. MS thesis, The Univeristy of Arizona. Tucson, 159pp. Speer, J.H., Swetnam, T.W., Wickman, B.E., and Youngblood, A., 2000. Changes in pandora moth outbreak dynamics during the past 622 years. Submitted to Ecology. COFECHA output: Chronology file name : OR051.CRN Measurement file name : OR051.RWL Date checked : 29MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1574 Ending year : 1995 Principal investigators: James H. Speer and Thomas W. Swetnam Site name : Deschutes Site location : Oregon Species information : PIPO PONDEROSA PINE Latitude : +4328 Longitude : -12124 Elevation : 1420M Series intercorrelation: 0.601 Avg mean sensitivity : 0.227 Avg standard deviation : 0.769 Avg autocorrelation : 0.904 Number dated series : 21 Segment length tested : 50 Number problem segments: 14 Pct problem segments : 4.55 PART 5: CORRELATION OF SERIES BY SEGMENTS: or051.rwl 13:12 Tue 29 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 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 DES01A 1612 1993 .59 .70 .72 .39 .51 .22B .17B .58 .69 .56 .69 .66 .41 .40 .52 2 DES01B 1667 1993 .34 .38 .58 .62 .53 .71 .73 .41 .46 .52 .52 .54 .53 3 DES02A 1601 1994 .62 .83 .77 .48 .60 .70 .51 .51 .63 .62 .60 .74 .76 .51 .43 4 DES02B 1714 1994 .60 .63 .55 .59 .64 .68 .68 .69 .65 .58 .61 5 DES03A 1574 1994 .62 .63 .68 .62 .60 .65 .67 .57 .55 .67 .64 .50 .56 .61 .67 .70 6 DES03B 1578 1994 .52 .61 .76 .74 .59 .62 .60 .51 .55 .62 .58 .61 .49 .46 .68 .78 7 DES04B 1593 1988 .53 .53 .72 .70 .72 .83 .59 .54 .54 .50 .53 .58 .75 .76 .62 .47 8 DES05A 1604 1994 .66 .81 .80 .74 .68 .55 .57 .52 .46 .43 .41 .70 .80 .82 .85 9 DES05B 1593 1989 .51 .53 .81 .87 .68 .67 .75 .55 .59 .70 .60 .57 .66 .78 .84 .73 10 DES06A 1594 1994 .67 .73 .84 .76 .52 .63 .57 .48 .47 .59 .64 .68 .72 .71 .61 .41B 11 DES06B 1608 1994 .73 .76 .78 .49 .66 .66 .58 .58 .60 .59 .52 .70 .57 .35 .59 12 DES07A 1632 1995 .64 .61 .26B .35 .66 .55 .44 .51 .46 .56 .80 .82 .72 .73 13 DES07B 1632 1995 .47 .45 .50 .65 .61 .47 .60 .73 .45 .36B .73 .79 .53 .46 14 DES08A 1602 1995 .45 .62 .58 .49 .60 .57 .55 .64 .45 .23B .38 .55 .61 .48 .48 15 DES08B 1577 1994 .68 .62 .80 .78 .52 .63 .65 .66 .65 .67 .49 .53 .73 .79 .69 .57 16 DES09A 1675 1995 .54 .69 .40 .28B .45 .62 .35B .47 .79 .75 .67 .65 17 DES09B 1624 1995 .59 .59 .55 .51 .52 .48 .48 .48 .61 .60 .57 .56 .61 .68 .70 18 DES10A 1617 1995 .73 .74 .58 .25B .29B .49 .53 .32A .37 .35 .47 .59 .51 .47 .36 19 DES10B 1628 1995 .71 .63 .35 .30A .48 .55 .49 .38B .16B .51 .73 .78 .66 .60 20 DES11A 1618 1995 .64 .71 .53 .38 .71 .78 .77 .76 .71 .72 .72 .83 .81 .67 .64 21 DES11B 1627 1995 .74 .76 .71 .78 .75 .70 .83 .85 .73 .69 .77 .72 .61 .66 Av segment correlation .59 .62 .72 .66 .51 .60 .59 .53 .56 .61 .52 .55 .68 .68 .61 .59 PART 7: DESCRIPTIVE STATISTICS: or051.rwl 13:12 Tue 29 Mar 2005 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 DES01A 1612 1993 382 15 2 .519 .93 2.68 .494 .768 .305 2.52 .368 .019 5 2 DES01B 1667 1993 327 13 0 .543 1.22 3.85 .668 .838 .269 2.64 .391 .013 1 3 DES02A 1601 1994 394 15 0 .633 .93 2.40 .469 .768 .309 2.53 .355 .011 1 4 DES02B 1714 1994 281 11 0 .645 1.05 2.43 .464 .759 .266 2.65 .392 -.007 2 5 DES03A 1574 1994 421 16 0 .615 1.02 5.71 1.111 .950 .273 2.57 .353 .022 3 6 DES03B 1578 1994 417 16 0 .602 .99 6.89 1.254 .964 .251 2.52 .342 -.001 1 7 DES04B 1593 1988 396 16 0 .626 .91 4.67 .704 .943 .207 2.47 .284 -.027 3 8 DES05A 1604 1994 391 15 0 .664 1.03 6.82 1.003 .949 .242 2.59 .357 -.031 1 9 DES05B 1593 1989 397 16 0 .676 .97 6.09 1.030 .951 .239 2.48 .305 -.006 1 10 DES06A 1594 1994 401 16 1 .602 1.10 5.82 1.080 .950 .251 2.46 .330 .026 1 11 DES06B 1608 1994 387 15 0 .609 .94 5.60 .707 .899 .228 2.57 .344 .005 1 12 DES07A 1632 1995 364 14 1 .604 1.24 5.61 .870 .932 .195 2.53 .357 -.012 2 13 DES07B 1632 1995 364 14 1 .561 1.19 5.04 .913 .933 .201 2.49 .347 -.014 1 14 DES08A 1602 1995 394 15 1 .503 1.13 3.76 .618 .919 .159 2.48 .309 .002 1 15 DES08B 1577 1994 418 16 0 .651 .94 6.95 .860 .957 .218 2.50 .287 -.008 1 16 DES09A 1675 1995 321 12 2 .571 .67 1.64 .289 .837 .222 2.56 .406 -.011 3 17 DES09B 1624 1995 372 15 0 .568 .64 2.57 .333 .883 .203 2.57 .360 .003 2 18 DES10A 1617 1995 379 15 3 .455 1.02 3.59 .686 .929 .176 2.50 .326 .002 1 19 DES10B 1628 1995 368 14 3 .543 1.15 3.66 .718 .940 .166 2.54 .352 .008 2 20 DES11A 1618 1995 378 15 0 .687 1.14 4.43 .895 .934 .195 2.56 .297 -.017 1 21 DES11B 1627 1995 369 14 0 .724 1.17 3.93 .715 .902 .201 2.42 .267 -.025 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 7921 308 14 .601 1.02 6.95 .769 .904 .227 2.65 .338 -.002