Hogback Rampart Hills, Colorado - CO561 Additional Site Information Diane L. Douglas. Detrend method: Negative exponontial or linear regression with negative or 0 slope Purpose of Collection: Climatology - temperature analyses Reference: Douglas, Diane L. 1998. Temperature Reconstructions Spanning the Continental Divide: Bristlecone Pine and Limber Pine as Proxy Data. Doctoral Dissertation Arizona State University, Tempe, AZ. Ann Arbor Michigan, Microfilm. Cores are stored at: Laboratory of Tree-Ring Research, University of Arizona, Tucson The Hogback is located in the Rampart Hills of Southwestern Colorado, a few miles northeast of Mesa Verde Archaeological Ruins. The p. flexilis samples were collected to reconstruct summer temperatures in the Mesa Verde region. The specimens were mounted and cross-dated using conventional dendrochronological techniques and measured to the nearest 0.01 mm using a Henson computer compatible increment measuring machine. The program Verify5 was used to detect measurement and cross-dating errors. Cores with breaks, pockets of rot that could not be successfully cross-dated were eliminated from the chronology. COFECHA output: Chronology file name : CO561.CRN Measurement file name : CO561.RWL Date checked : 15MAR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1484 Ending year : 1994 Principal investigators: Diane L. Douglas Site name : Hogback Rampart Hills Site location : Colorado Species information : PIFL LIMBER PINE Latitude : +3723 Longitude : -10807 Elevation : 3230M Series intercorrelation: 0.365 Avg mean sensitivity : 0.303 Avg standard deviation : 0.304 Avg autocorrelation : 0.647 Number dated series : 17 Segment length tested : 50 Number problem segments: 44 Pct problem segments : 37.29 PART 5: CORRELATION OF SERIES BY SEGMENTS: co561.rwl 17:09 Tue 15 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 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HGB01A 1484 1994 -.03B .19B .14B .09B .46 .46 .47 .52 .53 .49 .47 .56 .61 2 HGB02B 1661 1994 -.08B .06B .13B .23B .24A .30A .56 .64 .60 .54 .65 .69 .75 3 HGB03A 1840 1994 .64 .65 .57 .67 .72 .77 4 HGB03B 1732 1994 -.04B .01B-.24B-.33B-.19B-.24B-.14B .00B-.19B-.23B 5 HGB04A 1784 1994 .24B .33 .67 .71 .68 .71 .50 .36 6 HGB07A 1850 1994 .57 .60 .41 .43 .66 7 HGB08A 1841 1994 .53 .49 .45 .49 .51 .67 8 HGB12B 1861 1994 .58 .57 .36 .42 .63 9 HGB13B 1847 1994 -.03B .02B .22B .54 .75 .61 10 HGB15A 1879 1990 .49 .58 .44 .43 11 HGB15B 1879 1994 .48 .60 .61 .66 12 HGB17B 1699 1994 .23B .19B .05B .19B .31B-.03B-.36B-.32B-.03B-.08B .00B .62 13 HGB18A 1884 1994 .13B .10B-.17B-.18B 14 HGB19A 1881 1994 .56 .63 .53 .70 15 HGB20A 1803 1994 .10B .25B .66 .68 .77 .77 .79 16 HGB20B 1803 1994 .35 .57 .67 .66 .68 .70 .79 17 HGB22A 1882 1994 .21B .11B .04B .44 Av segment correlation -.05 .16 .15 .08 .23 .22 .21 .32 .41 .42 .45 .43 .53 PART 7: DESCRIPTIVE STATISTICS: co561.rwl 17:09 Tue 15 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 HGB01A 1484 1994 511 13 4 .327 .61 1.79 .310 .792 .269 2.68 .396 -.032 1 2 HGB02B 1661 1994 334 13 6 .342 .67 2.17 .369 .847 .269 2.77 .510 -.046 2 3 HGB03A 1840 1994 155 6 0 .682 .39 .90 .170 .505 .379 2.55 .429 -.056 1 4 HGB03B 1732 1994 263 10 10 -.172 .21 .57 .114 .607 .368 2.82 .439 -.016 1 5 HGB04A 1784 1994 211 8 1 .512 .35 1.04 .157 .537 .339 2.71 .422 -.048 1 6 HGB07A 1850 1994 145 5 0 .573 .81 2.64 .544 .859 .233 2.72 .468 -.046 1 7 HGB08A 1841 1994 154 6 0 .559 .65 1.70 .435 .929 .208 2.74 .472 -.046 1 8 HGB12B 1861 1994 134 5 0 .499 .78 1.85 .262 .359 .279 2.93 .462 .013 1 9 HGB13B 1847 1994 148 6 3 .295 .55 1.01 .188 .143 .382 2.49 .356 -.016 1 10 HGB15A 1879 1990 112 4 0 .485 1.39 2.93 .721 .903 .183 2.54 .364 .096 2 11 HGB15B 1879 1994 116 4 0 .564 1.56 3.14 .664 .817 .201 2.66 .356 .029 1 12 HGB17B 1699 1994 296 12 11 .084 .71 1.70 .359 .788 .289 2.56 .358 -.038 1 13 HGB18A 1884 1994 111 4 4 -.044 .62 1.36 .245 .556 .323 2.64 .548 .003 1 14 HGB19A 1881 1994 114 4 0 .630 .49 1.03 .243 .743 .349 2.64 .488 -.054 1 15 HGB20A 1803 1994 192 7 2 .555 .52 1.14 .200 .343 .363 2.75 .448 -.024 1 16 HGB20B 1803 1994 192 7 0 .622 .49 1.18 .186 .369 .346 2.66 .426 -.053 1 17 HGB22A 1882 1994 113 4 3 .263 .64 1.15 .258 .411 .385 2.50 .355 -.003 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3301 118 44 .365 .63 3.14 .304 .647 .303 2.93 .428 -.026