Chronology file name : AK188.CRN Measurement file name : AK188.RWL Date checked : 12MAY22 Checked by : C. Payne Beginning year : 1859 Ending year : 2017 Principal investigators: Stewart, A.K. Hubbard, T.D. Leech, M. Site name : Treasure Creek Site location : Alaska Species information : PCMA BLACK SPRUCE Latitude : 6502 Longitude : -14774 Elevation : 270m Series intercorrelation: 0.523 Avg mean sensitivity : 0.206 Avg standard deviation : 0.640 Avg autocorrelation : 0.805 Number dated series : 39 Segment length tested : 50 Number problem segments: 14 Pct problem segments : 16.09 PART 5: CORRELATION OF SERIES BY SEGMENTS: Treasure Creek 10:02 Thu 12 May 2022 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 TC016a 1960 2017 .65 .63 2 TC016b 1954 2017 .64 .60 3 TC017b 1954 2017 .70 .73 4 TC019a 1962 2017 .58 .63 5 TC019b 1951 2017 .64 .63 6 TC020a 1955 2017 .57 .46 7 TC020b 1950 2017 .54 .38 8 TC021a 1964 2017 .68 .72 9 TC021b 1955 2017 .69 .67 10 TC022a 1948 2017 .61 .58 .72 11 TC022b 1951 2017 .68 .64 12 TC023a 1955 2017 .58 .49 13 TC023b 1955 2017 .68 .71 14 TC024a 1950 2017 .74 .55 15 TC024b 1950 2017 .62 .56 16 TC025a 1962 2017 .67 .65 17 TC025b 1963 2017 .71 .75 18 TC026a 1950 2017 .53 .56 19 TC026b 1947 2017 .55 .54 .46 20 TC027a 1950 2017 .75 .72 21 TC027b 1956 2017 .57 .51 22 TC029a 1979 2017 .51 23 TC029b 1980 2017 .62 24 TC030a 1959 2017 .40 .55 25 TC103a 1952 2017 .52 .35 26 TC103b 1956 2017 .58 .38 27 TC104a 1906 2017 .31A .12B .11B .17B 28 TC104b 1859 2017 .49 .36 .28B .37 29 TC109a 1910 2017 .47 .46 .42 .39 30 TC109b 1902 2017 .56 .44 .37 .33A 31 TC110a 1920 2017 .28B .29B .29B .18B 32 TC113a 1947 2017 .58 .55 .42 33 TC113b 1956 2017 .47 .52 34 TC114a 1977 2017 .64 35 TC114b 1966 2017 .32B .36B 36 TC115b 1977 2017 .36 37 TC117a 1962 2017 .32A .30A 38 TC118a 1954 2017 .62 .62 39 TC118b 1953 2017 .79 .75 Av segment correlation .42 .42 .55 .53 PART 7: DESCRIPTIVE STATISTICS: Treasure Creek 10:02 Thu 12 May 2022 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 TC016a 1960 2017 58 2 0 .662 1.69 3.66 .677 .794 .214 2.69 .494 -.036 1 2 TC016b 1954 2017 64 2 0 .632 1.64 4.15 .756 .807 .228 2.59 .423 -.033 1 3 TC017b 1954 2017 64 2 0 .711 1.38 2.61 .424 .577 .217 2.69 .501 -.090 1 4 TC019a 1962 2017 56 2 0 .606 1.32 3.90 .690 .797 .200 2.86 .668 -.124 1 5 TC019b 1951 2017 67 2 0 .567 1.07 2.52 .587 .787 .225 2.55 .383 -.033 1 6 TC020a 1955 2017 63 2 0 .415 1.38 3.02 .712 .789 .340 2.45 .424 -.030 2 7 TC020b 1950 2017 68 2 0 .454 1.03 2.30 .563 .827 .229 2.69 .550 .007 1 8 TC021a 1964 2017 54 2 0 .696 1.16 3.36 .778 .770 .261 2.87 .412 -.062 1 9 TC021b 1955 2017 63 2 0 .668 1.05 2.10 .590 .891 .175 2.44 .336 -.062 1 10 TC022a 1948 2017 70 3 0 .585 1.32 2.82 .665 .758 .222 2.92 .572 -.028 1 11 TC022b 1951 2017 67 2 0 .630 1.15 2.93 .596 .830 .201 2.60 .429 -.042 1 12 TC023a 1955 2017 63 2 0 .587 1.68 3.36 .729 .828 .171 2.41 .362 -.070 1 13 TC023b 1955 2017 63 2 0 .695 1.78 3.22 .750 .881 .167 2.54 .425 -.053 1 14 TC024a 1950 2017 68 2 0 .673 1.17 2.38 .525 .802 .208 2.65 .481 -.025 2 15 TC024b 1950 2017 68 2 0 .611 1.21 3.73 .695 .798 .245 2.54 .469 .052 1 16 TC025a 1962 2017 56 2 0 .594 1.27 2.58 .523 .787 .186 2.49 .372 -.038 1 17 TC025b 1963 2017 55 2 0 .732 1.03 2.36 .445 .861 .153 2.52 .425 .023 2 18 TC026a 1950 2017 68 2 0 .469 1.49 3.16 .585 .746 .167 2.61 .472 .058 1 19 TC026b 1947 2017 71 3 0 .447 1.52 3.67 .584 .637 .182 2.81 .518 .086 1 20 TC027a 1950 2017 68 2 0 .721 1.11 2.58 .521 .815 .175 2.66 .391 -.047 1 21 TC027b 1956 2017 62 2 0 .535 1.11 2.39 .512 .843 .185 2.48 .375 -.056 2 22 TC029a 1979 2017 39 1 0 .514 1.61 4.01 .631 .633 .238 2.75 .532 -.053 1 23 TC029b 1980 2017 38 1 0 .624 1.76 3.50 .520 .680 .197 2.52 .502 .107 1 24 TC030a 1959 2017 59 2 0 .420 1.28 3.07 .703 .845 .201 2.70 .461 -.130 1 25 TC103a 1952 2017 66 2 0 .518 1.57 3.24 .832 .830 .226 2.67 .600 -.020 1 26 TC103b 1956 2017 62 2 0 .496 .87 2.55 .684 .921 .189 2.61 .508 -.046 1 27 TC104a 1906 2017 112 4 4 .206 .75 2.86 .529 .887 .222 2.85 .440 -.010 2 28 TC104b 1859 2017 159 4 1 .356 .59 2.38 .426 .873 .205 2.82 .387 .018 1 29 TC109a 1910 2017 108 4 0 .437 1.05 3.97 .767 .811 .273 2.87 .467 .016 1 30 TC109b 1902 2017 116 4 1 .446 1.17 3.90 .864 .819 .260 2.79 .479 -.054 2 31 TC110a 1920 2017 98 4 4 .273 1.05 2.90 .690 .884 .195 3.22 .573 -.044 1 32 TC113a 1947 2017 71 3 0 .502 2.05 4.63 .829 .833 .166 2.57 .401 .018 2 33 TC113b 1956 2017 62 2 0 .483 1.93 3.20 .608 .774 .159 2.64 .497 -.005 1 34 TC114a 1977 2017 41 1 0 .644 2.93 4.10 .606 .626 .149 2.62 .596 .019 1 35 TC114b 1966 2017 52 2 2 .317 2.32 4.21 .868 .851 .153 2.64 .543 -.023 1 36 TC115b 1977 2017 41 1 0 .363 2.40 4.08 .739 .856 .112 2.46 .514 -.013 1 37 TC117a 1962 2017 56 2 2 .368 1.66 3.37 .625 .575 .268 2.59 .402 -.106 1 38 TC118a 1954 2017 64 2 0 .613 1.29 2.50 .613 .889 .155 2.43 .374 -.087 1 39 TC118b 1953 2017 65 2 0 .760 1.27 3.88 .612 .819 .185 2.46 .384 -.064 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2645 87 14 .523 1.33 4.63 .640 .805 .206 3.22 .461 -.026