Douglas Pass, Colorado, USA - CO599 Additional information Connie A. Woodhouse Jeff Lukas Margot Kaye Purpose of Collection: Climatology Detrend method: Negative exponential or linear regression of any slope, or 2/3-length spline. Detrending was done interactively, and if a negative exponential or lenear regression fit poorly, a 2/3-length spline was used. Cores are stored at: Institute of Arctic and Alpine Research, University of Colorado Reference: Woodhouse, Connie A.; Gray, Stephen T.; Meko, David M. 2006. Updated streamflow reconstructions for the Upper Colorado River Basin. Water Resources Research 42(5), W05415. COFECHA output: Chronology file name : CO599.CRN Measurement file name : CO599.RWL Date checked : 21JUN06 Checked by : B. Bauer Beginning year : 1382 Ending year : 2000 Principal investigators: Connie A. Woodhouse Jeff Lukas Margot Kaye Site name : Douglas Pass Site location : Colorado Species information : PSME DOUGLAS-FIR Latitude : 3936 Longitude : -10848 Elevation : 2591m Series intercorrelation: 0.708 Avg mean sensitivity : 0.303 Avg standard deviation : 0.372 Avg autocorrelation : 0.782 Number dated series : 24 Segment length tested : 50 Number problem segments: 2 Pct problem segments : 0.57 PART 5: CORRELATION OF SERIES BY SEGMENTS: Douglas Pass 14:19 Wed 21 Jun 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 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 dou041 1556 2000 .78 .86 .84 .86 .85 .79 .61 .68 .87 .84 .85 .85 .74 .68 2 dou141 1671 2000 .51 .57 .50 .66 .79 .79 .87 .85 .70 .74 3 dou142 1717 2000 .62 .66 .86 .80 .85 .80 .63 .76 4 dou151 1616 2000 .60 .58 .49 .51 .51 .61 .71 .70 .76 .79 .64 .62 5 dou152 1597 2000 .40 .45 .51 .37B .48B .53 .53 .70 .82 .86 .86 .73 .68 6 dou231 1693 2000 .78 .75 .79 .81 .78 .83 .84 .85 .87 7 dou011 1449 1915 .82 .83 .90 .90 .85 .87 .87 .79 .80 .82 .83 .71 .74 .79 .65 .77 .83 .72 .69 8 dou012 1452 1921 .84 .89 .91 .80 .76 .78 .74 .79 .80 .80 .72 .79 .83 .80 .81 .79 .69 .66 9 dou021 1716 2000 .52 .48 .66 .61 .77 .83 .67 .55 10 dou022 1707 2000 .53 .58 .71 .62 .76 .79 .67 .64 11 dou111 1769 2000 .38 .39 .65 .76 .79 .82 12 dou161 1596 2000 .56 .65 .66 .61 .66 .66 .59 .63 .69 .68 .70 .71 .55 13 dou031 1852 2000 .48 .40 14 dou032 1853 2000 .65 .64 15 dou211 1428 2000 .82 .83 .80 .86 .87 .84 .76 .71 .71 .76 .78 .63 .68 .65 .54 .73 .82 .85 .80 16 dou232 1671 2000 .64 .66 .67 .76 .68 .64 .75 .74 .64 .57 17 dou212 1382 2000 .51 .70 .87 .83 .78 .66 .69 .73 .63 .48 .49 .49 .57 .65 .68 .66 .75 .82 .75 .66 18 dou122 1595 2000 .72 .75 .66 .58 .66 .62 .74 .76 .69 .71 .78 .79 .69 19 dou131 1840 2000 .65 .61 .63 20 dou162 1590 2000 .55 .62 .65 .63 .61 .63 .60 .65 .73 .59 .53 .68 .66 21 dou132 1840 2000 .64 .56 .62 22 dou121 1408 2000 .39 .50 .81 .83 .73 .69 .82 .85 .84 .72 .74 .78 .53 .46 .72 .72 .68 .76 .86 .82 23 dou112 1800 2000 .66 .84 .74 .68 24 dou042 1564 2000 .69 .73 .86 .75 .72 .82 .65 .63 .76 .78 .81 .80 .69 .70 Av segment correlation .45 .71 .84 .85 .84 .78 .78 .71 .71 .68 .64 .68 .61 .65 .72 .70 .76 .78 .70 .67 PART 5: CORRELATION OF SERIES BY SEGMENTS: Douglas Pass 14:19 Wed 21 Jun 2006 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 dou041 1556 2000 .80 .84 .87 .87 2 dou141 1671 2000 .87 .86 .88 .87 3 dou142 1717 2000 .72 .76 .88 .88 4 dou151 1616 2000 .72 .67 .64 .64 5 dou152 1597 2000 .78 .67 .54 .55 6 dou231 1693 2000 .80 .82 .87 .87 9 dou021 1716 2000 .67 .80 .83 .81 10 dou022 1707 2000 .62 .61 .75 .70 11 dou111 1769 2000 .84 .60 .43 .47 12 dou161 1596 2000 .54 .72 .76 .75 13 dou031 1852 2000 .51 .53 .54 .54 14 dou032 1853 2000 .61 .57 .60 .63 15 dou211 1428 2000 .68 .58 .61 .55 16 dou232 1671 2000 .57 .52 .56 .55 17 dou212 1382 2000 .65 .61 .77 .75 18 dou122 1595 2000 .77 .80 .77 .77 19 dou131 1840 2000 .66 .60 .63 .59 20 dou162 1590 2000 .71 .78 .78 .77 21 dou132 1840 2000 .66 .56 .63 .62 22 dou121 1408 2000 .84 .86 .81 .81 23 dou112 1800 2000 .80 .74 .65 .70 24 dou042 1564 2000 .79 .75 .82 .82 Av segment correlation .71 .69 .71 .71 PART 7: DESCRIPTIVE STATISTICS: Douglas Pass 14:19 Wed 21 Jun 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 dou041 1556 2000 445 18 0 .797 .47 1.83 .219 .654 .307 2.66 .332 -.017 1 2 dou141 1671 2000 330 14 0 .756 .56 1.68 .232 .567 .304 2.59 .355 -.001 1 3 dou142 1717 2000 284 12 0 .754 .59 1.76 .295 .696 .308 2.46 .324 -.045 1 4 dou151 1616 2000 385 16 0 .646 .44 1.93 .286 .823 .274 2.63 .253 -.029 3 5 dou152 1597 2000 404 17 2 .631 .43 1.46 .253 .856 .233 2.77 .361 -.029 1 6 dou231 1693 2000 308 13 0 .807 .65 3.28 .398 .769 .259 2.65 .418 -.034 2 7 dou011 1449 1915 467 19 0 .790 .58 2.89 .452 .865 .224 2.66 .328 -.003 1 8 dou012 1452 1921 470 18 0 .762 .58 2.18 .337 .767 .231 2.38 .207 .009 1 9 dou021 1716 2000 285 12 0 .706 .53 3.18 .398 .838 .313 2.57 .307 -.048 1 10 dou022 1707 2000 294 12 0 .668 .56 2.93 .446 .864 .297 2.56 .297 -.020 2 11 dou111 1769 2000 232 10 0 .630 .73 2.55 .620 .908 .305 2.45 .298 -.025 2 12 dou161 1596 2000 405 17 0 .653 .35 1.84 .260 .879 .279 2.54 .298 -.014 2 13 dou031 1852 2000 149 6 0 .501 1.70 3.74 .681 .682 .255 2.52 .449 -.029 1 14 dou032 1853 2000 148 6 0 .611 1.68 5.39 .804 .789 .239 2.81 .455 -.004 1 15 dou211 1428 2000 573 23 0 .741 .63 2.97 .472 .777 .324 2.46 .247 -.002 1 16 dou232 1671 2000 330 14 0 .668 .41 2.38 .397 .803 .404 2.72 .379 -.037 1 17 dou212 1382 2000 619 24 0 .714 .41 4.44 .567 .789 .436 2.61 .294 -.005 1 18 dou122 1595 2000 406 17 0 .727 .28 2.00 .203 .768 .335 2.60 .333 -.029 1 19 dou131 1840 2000 161 7 0 .620 .82 2.76 .444 .796 .239 2.36 .269 -.039 1 20 dou162 1590 2000 411 17 0 .647 .32 1.55 .216 .828 .284 2.47 .258 -.033 1 21 dou132 1840 2000 161 7 0 .632 .85 2.83 .410 .779 .235 2.68 .327 -.021 1 22 dou121 1408 2000 593 24 0 .724 .39 2.34 .335 .765 .363 2.60 .270 .002 1 23 dou112 1800 2000 201 8 0 .700 .81 2.42 .538 .875 .260 2.49 .298 -.052 1 24 dou042 1564 2000 437 18 0 .744 .57 2.03 .274 .665 .324 2.49 .275 -.039 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8498 349 2 .708 .55 5.39 .372 .782 .303 2.81 .306 -.019