McKenzie Pass SNOTEL, Cascade Mountains, Oregon USA - OR097 Additional Site Information C.J. Ratcliff, S.L. Voelker, A.W. Nolin Notes: These data were collected as part of a pilot study of snowpack effects on earlywood, latewood and whole tree-ring widths and carbon stable isotope composition of latewood. Ring-width series that are names "Small" were taken with a 5 mm diameter borer while other cores were 12mm in diameter. For trees sampled with a 12 mm borer, two or three cores per tree were extracted from each tree and labelled as "A", "B" or "C". The 5 mm and 12 mm diameter cores were from separate trees even though their data may display as having the same number. COFECHA output: Chronology file name : OR097.CRN Measurement file name : OR097.RWL Date checked : 25JUN15 Checked by : B. Bauer Beginning year : 1837 Ending year : 2013 Principal investigators: C.J. Ratcliff S.L. Voelker A.W. Nolin Site name : McKenzie Pass SNOTEL Site location : Oregon Species information : TSME MOUNTAIN HEMLOCK Latitude : 4413 Longitude : -12152 Elevation : 1454M Series intercorrelation: 0.534 Avg mean sensitivity : 0.224 Avg standard deviation : 0.482 Avg autocorrelation : 0.741 Number dated series : 33 Segment length tested : 50 Number problem segments: 9 Pct problem segments : 6.29 PART 5: CORRELATION OF SERIES BY SEGMENTS: McKenzie Pass SNOTEL 12:13 Thu 25 Jun 2015 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 MT1A 1837 1985 .64 .72 .68 .51 .43 .45 2 MT1B 1911 2013 .55 .48 .66 .71 3 MT1C 1904 2013 .71 .62 .61 .63 4 MT2A 1899 2013 .71 .65 .60 .67 .70 5 MT2B 1901 2013 .63 .59 .70 .68 6 MT2C 1913 2013 .54 .67 .72 .70 7 MT3A 1944 2013 .56 .50 .61 8 MT3B 1903 2005 .48 .63 .62 .56 9 MT3C 1906 1993 .47 .63 .71 10 MT4A 1923 2013 .43 .46 .54 .62 11 MT4B 1931 2013 .61 .71 .71 12 MT4C 1933 2013 .51 .69 .79 13 MT5A 1899 2013 .60 .57 .44 .65 .71 14 MT5B 1902 2013 .49 .56 .41 .41 15 MT6A 1924 2013 .54 .53 .45 .48 16 MT6B 1916 2013 .61 .65 .48 .53 17 MT6C 1928 2013 .55 .51 .62 18 MT7A 1929 2013 .45 .55 .58 19 MT7B 1884 2013 .75 .56 .51 .69 .72 20 MT8A 1897 2013 .57 .32B .20B .67 .54 21 MT8B 1879 2013 .45 .50 .50 .34 .45 22 MT8C 1879 2013 .70 .60 .59 .41 .46 23 SmallMT1 1847 2013 .54 .60 .42 .26A .29A .53 .60 24 SmallMT2 1891 2013 .73 .58 .58 .43 .51 25 SmallMT3 1888 2013 .45 .40 .40 .25B .24B 26 SmallMT4 1860 1974 .49 .55 .52 .38 27 SmallMT5 1897 2013 .43 .41 .47 .56 .51 28 SmallMT6 1913 2013 .36 .47 .66 .66 29 SmallMT7 1910 2013 .60 .56 .34 .37 30 smallMT8 1901 2013 .26A .33B .63 .61 31 SmallMT9 1890 2013 .34 .59 .51 .27B .37 32 SmallM10 1905 2013 .57 .48 .41 .55 33 SmallM11 1861 2013 .76 .76 .62 .59 .53 .51 Av segment correlation .59 .64 .58 .51 .51 .54 .57 PART 7: DESCRIPTIVE STATISTICS: McKenzie Pass SNOTEL 12:13 Thu 25 Jun 2015 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 MT1A 1837 1985 149 6 0 .586 1.12 2.24 .449 .721 .234 2.60 .394 -.019 1 2 MT1B 1911 2013 103 4 0 .635 1.25 1.98 .382 .589 .228 2.45 .417 -.040 2 3 MT1C 1904 2013 110 4 0 .644 1.42 2.96 .577 .709 .260 2.54 .478 -.102 3 4 MT2A 1899 2013 115 5 0 .694 1.33 2.46 .544 .823 .222 2.67 .523 .010 2 5 MT2B 1901 2013 113 4 0 .646 1.40 2.41 .501 .828 .180 2.62 .410 -.035 1 6 MT2C 1913 2013 101 4 0 .635 1.16 2.80 .652 .924 .224 2.56 .448 -.001 1 7 MT3A 1944 2013 70 3 0 .512 1.11 2.71 .680 .836 .267 2.53 .436 -.104 1 8 MT3B 1903 2005 103 4 0 .493 1.60 3.57 .880 .876 .233 2.43 .306 .010 4 9 MT3C 1906 1993 88 3 0 .562 1.75 4.08 .771 .827 .208 2.69 .468 .075 2 10 MT4A 1923 2013 91 4 0 .501 1.51 2.52 .435 .727 .168 2.46 .460 .132 1 11 MT4B 1931 2013 83 3 0 .670 1.94 2.87 .400 .524 .177 2.35 .348 -.024 6 12 MT4C 1933 2013 81 3 0 .673 1.63 2.68 .404 .511 .204 2.46 .480 .015 1 13 MT5A 1899 2013 115 5 0 .614 1.20 2.53 .444 .730 .206 2.68 .451 -.042 2 14 MT5B 1902 2013 112 4 0 .450 1.20 2.23 .441 .833 .171 2.60 .375 -.004 1 15 MT6A 1924 2013 90 4 0 .495 1.83 3.54 .480 .498 .195 2.87 .599 -.073 1 16 MT6B 1916 2013 98 4 0 .557 1.66 3.17 .484 .548 .218 2.65 .496 -.010 2 17 MT6C 1928 2013 86 3 0 .564 1.80 3.50 .517 .579 .195 2.86 .485 -.022 2 18 MT7A 1929 2013 85 3 0 .532 1.81 3.47 .720 .857 .203 2.75 .514 .082 1 19 MT7B 1884 2013 130 5 0 .668 .87 2.33 .411 .775 .221 2.57 .362 -.057 2 20 MT8A 1897 2013 117 5 2 .473 1.26 2.59 .477 .725 .232 2.43 .334 -.016 3 21 MT8B 1879 2013 135 5 0 .436 1.14 2.29 .463 .730 .255 2.69 .439 .019 1 22 MT8C 1879 2013 135 5 0 .600 1.32 3.11 .583 .765 .240 2.54 .327 -.020 2 23 SmallMT1 1847 2013 167 7 2 .455 .86 2.14 .368 .710 .232 2.59 .438 -.024 2 24 SmallMT2 1891 2013 123 5 0 .619 1.02 3.26 .564 .794 .242 2.64 .429 .010 1 25 SmallMT3 1888 2013 126 5 2 .363 .75 1.34 .243 .707 .204 2.60 .417 -.009 1 26 SmallMT4 1860 1974 115 4 0 .446 .80 1.83 .356 .701 .250 2.65 .414 .011 1 27 SmallMT5 1897 2013 117 5 0 .416 .80 1.83 .391 .808 .252 2.61 .361 -.071 1 28 SmallMT6 1913 2013 101 4 0 .413 1.00 3.13 .513 .806 .293 2.49 .382 -.069 1 29 SmallMT7 1910 2013 104 4 0 .460 1.03 2.04 .403 .781 .212 2.66 .517 .040 1 30 smallMT8 1901 2013 113 4 2 .409 .92 2.02 .386 .802 .214 2.46 .360 -.010 1 31 SmallMT9 1890 2013 124 5 1 .346 .61 1.88 .395 .861 .231 2.94 .447 -.030 1 32 SmallM10 1905 2013 109 4 0 .543 1.08 2.79 .451 .788 .196 2.85 .497 -.029 1 33 SmallM11 1861 2013 153 6 0 .601 1.03 2.91 .451 .649 .257 2.62 .381 -.022 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3662 143 9 .534 1.21 4.08 .482 .741 .224 2.94 .426 -.014