Chronology file name : OR136.CRN Measurement file name : OR136.RWL Date checked : 22SEP25 Checked by : NOAA-Paleoclimatology Beginning year : 1771 Ending year : 2019 Principal investigators: King Harley Site name : Mount Hood Site location : Oregon Species information : TSME MOUNTAIN HEMLOCK Latitude : 4520 Longitude : -12143 Elevation : 1759M Series intercorrelation: 0.472 Avg mean sensitivity : 0.034 Avg standard deviation : 0.141 Avg autocorrelation : 0.823 Number dated series : 22 Segment length tested : 50 Number problem segments: 34 Pct problem segments : 20.99 PART 5: CORRELATION OF SERIES BY SEGMENTS: or136 12:39 Mon 22 Sep 2025 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 1775 1800 1825 1850 1875 1900 1925 1950 1975 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TIM01A_2 1814 1959 -.16B-.04B .72 .69 .33A .46 2 TIM02A_2 1817 2019 .41 .36 .43 .64 .64 .55 .15B-.08B 3 TIM02B_2 1820 2019 .27B .28A .58 .58 .54 .73 .69 .70 4 TIM03A_2 1813 2019 .26B .30B .63 .76 .74 .78 .60 .24A 5 TIM03B_2 1795 2019 .17B .18B .11B .33 .38 .43 .45 .33 .32A 6 TIM06A_2 1853 2019 .38 .40 .42 .54 .49 .37 7 TIM06B_2 1851 2019 .13B .31A .56 .74 .69 .54 8 TIM08B_2 1831 2019 .33 .34 .31A .36 .46 .42 .36 9 TIM09A_2 1853 2019 .56 .56 .49 .49 .49 .55 10 TIM09B_2 1844 2019 -.33B .29A .48 .58 .58 .42 .39 11 TIM10A_2 1850 2019 .37 .48 .31B .32B .46 .53 12 TIM10B_2 1850 2019 .59 .73 .48 .50 .68 .69 13 TIM11A_2 1820 2019 .36 .30B .63 .59 .31B .44 .50 .37B 14 TIM11B_2 1820 2019 .36 .41 .72 .66 .40 .49 .48 .40 15 TIM12B_2 1800 2019 .15B .35 .70 .70 .64 .71 .70 .60 16 TIM13A_2 1822 2019 .32A .38 .36B .38B .60 .58 .61 .55 17 TIM13B_2 1823 2019 .33 .37 .41 .47 .60 .70 .76 .72 18 TIM14A_2 1796 2019 -.07B-.04B .40 .40 .42 .68 .56 .48 .56 19 TIM14B_2 1850 2019 .68 .73 .73 .74 .72 .74 20 TIM17A_2 1771 2019 .47 .26B .38 .51 .61 .69 .39 .31B .36B 21 TIM17B_2 1788 2019 .53 .38 .46 .72 .73 .54 .52 .64 .59 22 TIMCD_2_ 1850 2019 .69 .78 .38B .38 .67 .48 Av segment correlation .28 .24 .27 .51 .56 .52 .55 .54 .47 PART 7: DESCRIPTIVE STATISTICS: or136 12:39 Mon 22 Sep 2025 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ 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 TIM01A_2 1814 1959 146 6 3 .436 1.68 1.92 .118 .715 .041 2.50 .317 -.011 3 2 TIM02A_2 1817 2019 203 8 2 .339 1.70 1.93 .134 .902 .027 2.57 .313 -.042 1 3 TIM02B_2 1820 2019 200 8 2 .561 1.67 1.97 .189 .951 .028 2.53 .387 -.003 1 4 TIM03A_2 1813 2019 207 8 3 .515 1.67 1.91 .133 .874 .031 2.53 .348 -.034 1 5 TIM03B_2 1795 2019 225 9 4 .257 1.64 1.89 .162 .542 .047 2.21 .184 -.022 1 6 TIM06A_2 1853 2019 167 6 0 .435 1.63 1.87 .111 .822 .030 2.67 .447 -.043 2 7 TIM06B_2 1851 2019 169 6 2 .435 1.60 1.91 .164 .936 .027 2.62 .406 .003 1 8 TIM08B_2 1831 2019 189 7 1 .335 1.62 2.04 .189 .933 .033 2.62 .452 -.023 3 9 TIM09A_2 1853 2019 167 6 0 .521 1.60 1.83 .116 .868 .028 2.62 .467 -.017 1 10 TIM09B_2 1844 2019 176 7 2 .394 1.59 1.88 .123 .937 .022 2.56 .381 -.058 1 11 TIM10A_2 1850 2019 170 6 2 .189 1.60 1.92 .206 .629 .064 2.18 .194 -.063 1 12 TIM10B_2 1850 2019 170 6 0 .592 1.67 1.89 .129 .873 .031 2.42 .331 -.020 2 13 TIM11A_2 1820 2019 200 8 3 .447 1.56 1.85 .126 .844 .034 2.57 .402 -.034 1 14 TIM11B_2 1820 2019 200 8 0 .508 1.53 1.79 .157 .910 .035 2.70 .377 -.028 1 15 TIM12B_2 1800 2019 220 8 1 .580 1.64 1.87 .128 .888 .027 2.43 .316 -.005 1 16 TIM13A_2 1822 2019 198 8 3 .457 1.64 1.99 .171 .937 .027 2.46 .326 -.072 1 17 TIM13B_2 1823 2019 197 8 0 .530 1.64 1.86 .118 .852 .031 2.55 .404 -.013 1 18 TIM14A_2 1796 2019 224 9 2 .533 1.53 1.86 .148 .419 .054 2.20 .183 -.024 1 19 TIM14B_2 1850 2019 170 6 0 .705 1.52 1.89 .121 .783 .041 2.40 .347 -.038 1 20 TIM17A_2 1771 2019 249 9 3 .463 1.72 1.95 .136 .870 .031 2.41 .304 -.013 1 21 TIM17B_2 1788 2019 232 9 0 .584 1.61 1.92 .122 .826 .035 2.70 .335 -.023 1 22 TIMCD_2_ 1850 2019 170 6 1 .554 1.72 1.89 .103 .851 .026 2.41 .315 -.001 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4249 162 34 .472 1.63 2.04 .141 .823 .034 2.70 .339 -.026