Bear Lake Summit PIFL, Utah - UT552 Additional Site Information Joseph D. Birch R.Justin DeRose Chenxi Xu Ryan Jess COFECHA output: Chronology file name : UT552.CRN Measurement file name : UT552.RWL Date checked : 08DEC21 Checked by : B. Bauer Beginning year : 1762 Ending year : 2019 Principal investigators: Joseph D. Birch R.Justin DeRose Chenxi Xu Ryan Jess Site name : Bear Lake Summit Site location : Utah Species information : PIFL LIMBER PINE Latitude : 4154 Longitude : -11129 Elevation : 2420M Series intercorrelation: 0.558 Avg mean sensitivity : 0.208 Avg standard deviation : 0.508 Avg autocorrelation : 0.728 Number dated series : 13 Segment length tested : 50 Number problem segments: 7 Pct problem segments : 8.75 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bear Lake Summit PIFL 08:52 Wed 08 Dec 2021 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BLS6A 1762 2019 .65 .59 .56 .51 .54 .70 .73 .71 .78 .67 2 BLS6B 1765 2019 .62 .55 .64 .76 .77 .69 .62 .66 .67 .54 3 BLS08A 1787 2019 .37 .30A .49 .63 .61 .49 .68 .64 .38 4 BLS8B 1788 2019 .57 .52 .27A .18B .44 .51 .72 .54 .35 5 BLS9A 1844 2019 .52 .55 .44 .49 .78 .73 .67 6 BLS9B 1849 2019 .57 .57 .59 .64 .70 .66 .48 7 BLS10A 1910 2019 .43 .46 .49 .41 8 BLS10B 1954 2019 .65 .19B 9 BLS10C 1965 2019 .51 .57 10 BLS11A 1888 2019 .27B .36 .66 .65 .64 11 BLS11B 1888 2019 .25A .32A .69 .81 .63 12 BLS12A 1911 2019 .78 .80 .72 .56 13 BLS12B 1863 2019 .51 .56 .64 .74 .69 .61 Av segment correlation .63 .52 .50 .52 .54 .50 .55 .69 .66 .51 PART 7: DESCRIPTIVE STATISTICS: Bear Lake Summit PIFL 08:52 Wed 08 Dec 2021 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 BLS6A 1762 2019 258 10 0 .635 1.16 2.40 .345 .599 .208 2.62 .401 -.003 2 2 BLS6B 1765 2019 255 10 0 .648 1.22 2.68 .471 .749 .246 2.62 .327 -.006 2 3 BLS08A 1787 2019 233 9 1 .498 .94 2.91 .504 .903 .159 2.68 .428 -.056 1 4 BLS8B 1788 2019 232 9 2 .441 .80 2.55 .384 .858 .179 2.69 .331 -.038 1 5 BLS9A 1844 2019 176 7 0 .572 1.02 2.10 .353 .617 .251 2.44 .281 -.014 1 6 BLS9B 1849 2019 171 7 0 .592 .94 2.13 .366 .786 .203 2.73 .473 -.054 1 7 BLS10A 1910 2019 110 4 0 .433 3.12 5.52 .958 .750 .169 2.66 .499 .035 2 8 BLS10B 1954 2019 66 2 1 .384 2.90 5.04 .939 .702 .194 2.60 .426 .083 1 9 BLS10C 1965 2019 55 2 0 .502 3.73 5.73 .949 .274 .208 2.67 .453 -.032 1 10 BLS11A 1888 2019 132 5 1 .539 1.30 2.60 .453 .694 .220 2.57 .421 -.048 1 11 BLS11B 1888 2019 132 5 2 .562 1.61 3.98 .836 .822 .261 2.55 .462 .002 1 12 BLS12A 1911 2019 109 4 0 .692 1.67 2.79 .424 .683 .180 2.46 .440 .000 1 13 BLS12B 1863 2019 157 6 0 .595 1.57 4.26 .536 .651 .215 2.64 .420 -.062 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2086 80 7 .558 1.39 5.73 .508 .728 .208 2.73 .399 -.021