Platt Bradbury, Colorado, USA - CO588 Additional information Connie A. Woodhouse Mark Losleben Purpose of Collection: Climatology - streamflow Detrend method: Negative exponential or linear regression of any slope/ 2/3 Spline Detrending was done interactively, and if a negative exponential/straight line fit poorly, a 2/3rd length spline was used. Cores are stored at: Institute of Arctic and Alpine Research, University of Colorado Collected on the property of Vera Markgraf and Platt Bradbury. Site named in honor of Platt Bradbury. This chronology also contains some Douglas-fir samples, as the two had very similar dating characteristics and were growing in the same stand. Chronology was used with several others to reconstruct water year flow for Alamosa Creek above Terrace Reservoir. COFECHA output: Chronology file name : CO588.CRN Measurement file name : CO588.RWL Date checked : 25MAY06 Checked by : B. Bauer Beginning year : 1632 Ending year : 2004 Principal investigators: Connie A. Woodhouse Mark Losleben Site name : Platt Bradbury Site location : Colorado Species information : PIPO PONDEROSA PINE Latitude : +3728 Longitude : -10618 Elevation : 2835M Series intercorrelation: 0.785 Avg mean sensitivity : 0.388 Avg standard deviation : 0.578 Avg autocorrelation : 0.685 Number dated series : 20 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Platt Bradbury 11:37 Thu 25 May 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 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 vpb011 1838 2004 .72 .76 .87 .92 .94 .91 .90 2 vpb012 1839 2004 .58 .73 .85 .89 .93 .87 .86 3 vpb021 1839 2001 .44 .54 .76 .91 .87 .81 .79 4 vpb022 1825 2001 .65 .65 .79 .91 .90 .84 .82 5 vpb041 1639 2004 .55 .55 .84 .83 .84 .86 .78 .81 .86 .86 .85 .85 .88 .91 .91 6 vpb042 1636 2004 .53 .51 .80 .85 .86 .85 .77 .81 .88 .87 .85 .88 .88 .83 .84 7 vp2012 1883 2004 .72 .75 .77 .77 .75 8 vp2091 1876 2004 .73 .69 .61 .67 .65 9 vp2092 1875 2004 .71 .81 .74 .75 .73 10 vp2022 1837 2004 .69 .77 .70 .74 .83 .79 .76 11 vp2021 1831 2004 .70 .80 .74 .73 .80 .85 .79 12 vp2042 1850 2004 .71 .73 .66 .73 .90 .87 13 vp2041 1850 2004 .71 .75 .74 .81 .85 .83 14 vp2011 1763 2004 .72 .75 .65 .69 .64 .69 .82 .81 .83 .80 15 vp2211 1750 1980 .73 .73 .80 .84 .76 .72 .84 .88 .90 16 vp2212 1746 1990 .77 .80 .78 .82 .81 .79 .82 .84 .88 .85 17 vp2081 1745 2004 .88 .85 .78 .83 .91 .88 .84 .85 .82 .68 .65 18 vp2082 1755 2004 .60 .78 .84 .89 .90 .89 .87 .82 .73 .74 19 vp2051 1649 2004 .48 .46 .79 .86 .85 .87 .88 .88 .92 .78 .74 .85 .86 .86 .83 20 vp2052 1632 2004 .47 .51 .80 .86 .87 .88 .78 .82 .92 .87 .81 .80 .84 .88 .87 Av segment correlation .51 .51 .81 .85 .84 .80 .78 .81 .77 .77 .78 .82 .83 .82 .80 PART 7: DESCRIPTIVE STATISTICS: Platt Bradbury 11:37 Thu 25 May 2006 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- 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 vpb011 1838 2004 167 7 0 .856 1.19 4.41 .684 .655 .411 2.81 .428 -.030 1 2 vpb012 1839 2004 166 7 0 .794 1.53 4.31 .817 .702 .394 2.57 .370 -.039 1 3 vpb021 1839 2001 163 7 0 .731 1.65 4.54 1.324 .908 .389 2.59 .383 -.010 1 4 vpb022 1825 2001 177 7 0 .784 1.58 4.09 1.053 .900 .335 2.51 .349 -.003 1 5 vpb041 1639 2004 366 15 0 .813 .85 2.70 .626 .810 .432 2.67 .384 -.004 2 6 vpb042 1636 2004 369 15 0 .809 .78 2.59 .601 .821 .415 2.64 .390 -.019 2 7 vp2012 1883 2004 122 5 0 .732 .94 3.35 .418 .394 .320 2.78 .481 -.001 1 8 vp2091 1876 2004 129 5 0 .683 1.41 2.83 .687 .682 .311 2.68 .429 -.050 1 9 vp2092 1875 2004 130 5 0 .729 1.22 2.69 .532 .635 .320 2.61 .488 -.050 1 10 vp2022 1837 2004 168 7 0 .745 1.31 4.59 .795 .670 .397 2.76 .505 -.051 1 11 vp2021 1831 2004 174 7 0 .758 1.11 3.72 .614 .634 .392 2.75 .523 -.057 1 12 vp2042 1850 2004 155 6 0 .754 1.40 3.87 .761 .642 .390 2.56 .542 -.041 1 13 vp2041 1850 2004 155 6 0 .770 1.58 5.93 .971 .690 .376 2.65 .494 -.040 1 14 vp2011 1763 2004 242 10 0 .738 1.09 2.80 .516 .700 .308 2.74 .455 -.039 2 15 vp2211 1750 1980 231 9 0 .788 .79 2.35 .481 .529 .479 2.91 .465 -.036 1 16 vp2212 1746 1990 245 10 0 .801 .81 3.13 .534 .612 .513 2.73 .487 -.017 1 17 vp2081 1745 2004 260 11 0 .825 .57 2.17 .323 .673 .376 2.68 .411 -.030 1 18 vp2082 1755 2004 250 10 0 .808 .59 2.86 .328 .606 .391 2.73 .383 .003 1 19 vp2051 1649 2004 356 15 0 .802 .52 1.70 .280 .657 .341 2.68 .385 -.034 2 20 vp2052 1632 2004 373 15 0 .798 .50 1.68 .243 .613 .364 2.59 .389 -.012 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4398 179 0 .785 .97 5.93 .578 .685 .388 2.91 .427 -.025