Santiam Pass SNOTEL, Cascade Mountains, Oregon USA - OR096 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 : OR096.CRN Measurement file name : OR096.RWL Date checked : 25JUN15 Checked by : B. Bauer Beginning year : 1838 Ending year : 2013 Principal investigators: C.J. Ratcliff S.L. Voelker A.W. Nolin Site name : Santiam Pass SNOTEL Site location : Oregon Species information : PSME DOUGLAS-FIR Latitude : 4426 Longitude : -12157 Elevation : 1139M Series intercorrelation: 0.482 Avg mean sensitivity : 0.177 Avg standard deviation : 0.779 Avg autocorrelation : 0.757 Number dated series : 27 Segment length tested : 50 Number problem segments: 17 Pct problem segments : 17.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Santiam Pass SNOTEL 13:23 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 1875 1900 1925 1950 1975 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ST1A 1932 2013 .39 .44 .59 2 ST1B 1953 2013 .54 .57 3 ST2A 1905 2013 .53 .62 .66 .65 4 ST2B 1912 2013 .39 .57 .57 .66 5 ST3A 1901 2013 .66 .72 .66 .66 6 ST3B 1904 2013 .61 .68 .53 .47 7 ST4A 1940 2013 .35 .49 .44 8 ST4B 1937 2013 .18B .34B .39 9 ST5A 1891 2013 .25B .49 .42 .56 .70 10 ST5B 1915 2013 .56 .49 .63 .73 11 ST6A 1921 2013 .33 .28A .55 .44B 12 ST6B 1917 2013 .30B .51 .57 .62 13 ST7A 1922 2013 .64 .60 .57 .67 14 ST7B 1928 2013 .63 .54 .70 15 ST8A 1926 2013 .46 .48 .57 16 ST8B 1907 2013 .43 .36 .53 .47 17 SmallST1 1920 2013 .38 .30A .31B .59 18 SmallST2 1934 2013 .33 .29A .34 19 SmallST3 1922 2013 .49 .48 .59 .67 20 SmallST4 1913 2013 .47 .49 .46 .56 21 SmallST5 1927 2013 .50 .47 .51 22 SmallST6 1838 2013 .08B .43 .50 .54 .54 23 SmallST7 1896 2013 .30A .27B .20B .39 .51 24 SmallST8 1922 2013 .38 .32A .44 .61 25 SmallST9 1946 2013 .25A .26A .29A 26 SmallS10 1935 2013 .55 .59 .65 27 SmallS11 1905 2013 .69 .62 .57 .55 Av segment correlation .21 .47 .45 .50 .56 PART 7: DESCRIPTIVE STATISTICS: Santiam Pass SNOTEL 13:23 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 ST1A 1932 2013 82 3 0 .485 1.97 2.92 .637 .792 .180 2.60 .533 .091 2 2 ST1B 1953 2013 61 2 0 .550 2.73 4.48 .820 .758 .155 2.69 .574 .084 1 3 ST2A 1905 2013 109 4 0 .558 1.82 3.33 .573 .851 .135 2.74 .418 -.007 1 4 ST2B 1912 2013 102 4 0 .518 1.94 2.98 .547 .867 .116 2.61 .450 -.072 1 5 ST3A 1901 2013 113 4 0 .668 1.98 3.18 .568 .699 .180 2.64 .521 -.027 1 6 ST3B 1904 2013 110 4 0 .543 2.00 3.32 .513 .562 .171 2.76 .408 -.007 2 7 ST4A 1940 2013 74 3 0 .372 2.63 6.40 1.246 .838 .192 2.41 .369 .066 1 8 ST4B 1937 2013 77 3 2 .206 2.34 5.89 1.260 .780 .235 2.39 .311 -.039 1 9 ST5A 1891 2013 123 5 1 .456 2.82 5.26 1.112 .862 .158 2.70 .449 -.034 1 10 ST5B 1915 2013 99 4 0 .607 2.97 5.86 1.284 .879 .168 2.61 .428 -.052 1 11 ST6A 1921 2013 93 4 2 .393 2.05 3.38 .596 .754 .165 2.70 .546 -.013 1 12 ST6B 1917 2013 97 4 1 .427 2.03 3.74 .683 .843 .155 2.52 .402 .009 1 13 ST7A 1922 2013 92 4 0 .655 2.04 3.90 .464 .650 .142 2.73 .397 -.021 1 14 ST7B 1928 2013 86 3 0 .647 1.97 3.63 .444 .722 .127 2.68 .475 -.090 1 15 ST8A 1926 2013 88 3 0 .493 1.54 2.94 .487 .748 .174 2.69 .389 -.085 1 16 ST8B 1907 2013 107 4 0 .447 1.54 3.37 .582 .780 .191 2.71 .366 -.026 1 17 SmallST1 1920 2013 94 4 2 .443 2.28 7.78 1.522 .885 .203 2.81 .439 .013 1 18 SmallST2 1934 2013 80 3 1 .360 2.28 3.82 .750 .808 .166 2.49 .328 -.031 1 19 SmallST3 1922 2013 92 4 0 .589 2.72 4.69 .939 .838 .147 2.73 .547 .008 1 20 SmallST4 1913 2013 101 4 0 .517 1.80 4.37 .706 .731 .211 2.71 .455 .089 1 21 SmallST5 1927 2013 87 3 0 .475 2.18 5.00 .876 .759 .208 2.93 .577 -.020 1 22 SmallST6 1838 2013 176 5 1 .334 1.74 3.30 .566 .580 .215 2.51 .381 -.008 1 23 SmallST7 1896 2013 118 5 3 .356 2.75 5.31 .886 .665 .201 2.77 .553 .031 1 24 SmallST8 1922 2013 92 4 1 .482 3.78 8.52 1.235 .695 .190 2.84 .502 -.044 1 25 SmallST9 1946 2013 68 3 3 .101 2.33 5.58 .958 .767 .260 2.50 .402 -.012 2 26 SmallS10 1935 2013 79 3 0 .605 2.34 3.83 .576 .691 .151 2.89 .518 -.064 1 27 SmallS11 1905 2013 109 4 0 .596 1.71 3.65 .598 .813 .175 2.82 .544 -.069 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2609 100 17 .482 2.21 8.52 .779 .757 .177 2.93 .454 -.014