Ellett Valley Oak, Blacksburg, Virginia - VA038 Additional Site Information Jim Speer and NADEF2011 Intro Group NOTES: Quercus alba and Quercus rubra ring-width data collected during the 2011 North American Dendroecological Fieldweek (NADEF). COFECHA output: Chronology file name : VA038.CRN Measurement file name : VA038.RWL Date checked : 15FEB19 Checked by : B. Bauer Beginning year : 1891 Ending year : 2010 Principal investigators: Jim Speer NADEF2011 Intro Group Site name : Ellett Valley Site location : Virginia Species information : QUSP OAK Latitude : 3711 Longitude : -08023 Elevation : 634M Series intercorrelation: 0.559 Avg mean sensitivity : 0.247 Avg standard deviation : 1.417 Avg autocorrelation : 0.772 Number dated series : 26 Segment length tested : 50 Number problem segments: 3 Pct problem segments : 4.23 PART 5: CORRELATION OF SERIES BY SEGMENTS: Ellett Valley QUSP 15:10 Fri 15 Feb 2019 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 1925 1950 1975 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ET21UA 1939 2010 .45 .49 .40 2 ET28BLA 1953 2010 .61 .57 3 ET20LA 1956 2010 .34 .37 4 ET07UAE 1945 2010 .67 .67 .70 5 ET17LA 1936 2010 .65 .79 .77 6 ET12UA 1937 2010 .73 .78 .78 7 ET08LA 1940 2010 .56 .60 .61 8 ET06LA 1891 2010 .59 .48 .56 9 ET10B 1930 2010 .58 .61 .51 10 ET5UB 1932 2010 .27A .28A .43 11 ET25LB 1941 2010 .50 .50 .52 12 ET086B 1933 2010 .61 .76 .74 13 ET32B 1972 2010 .29A 14 ET30A 1971 2010 .34 15 ET25LA 1948 2010 .56 .61 .60 16 ET16LB 1935 2006 .52 .55 .49 17 ET18B 1946 2010 .66 .63 .58 18 ET17LB 1937 2010 .71 .69 .73 19 ET64LA 1958 2010 .80 .81 20 ET07LB 1936 2010 .53 .58 .62 21 ET27A 1945 2010 .58 .62 .59 22 ET07LA 1947 2010 .79 .79 .73 23 ET01A 1933 2010 .51 .55 .50 24 ET18B 1946 2010 .67 .67 .57 25 ET12AL 1939 2010 .67 .71 .72 26 ET03A 1935 2010 .60 .73 .74 Av segment correlation .59 .60 .61 PART 7: DESCRIPTIVE STATISTICS: Ellett Valley QUSP 15:10 Fri 15 Feb 2019 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 ET21UA 1939 2010 72 3 0 .455 1.59 5.35 1.364 .885 .239 2.72 .535 -.047 1 2 ET28BLA 1953 2010 58 2 0 .596 4.02 9.70 2.430 .884 .229 2.63 .572 -.007 1 3 ET20LA 1956 2010 55 2 0 .349 3.97 7.37 1.296 .771 .199 2.48 .414 .031 1 4 ET07UAE 1945 2010 66 3 0 .650 2.10 5.56 1.191 .816 .205 2.48 .437 .050 1 5 ET17LA 1936 2010 75 3 0 .639 2.24 6.03 .895 .689 .212 2.48 .343 -.039 1 6 ET12UA 1937 2010 74 3 0 .743 2.28 11.48 2.094 .923 .286 2.72 .540 -.004 1 7 ET08LA 1940 2010 71 3 0 .614 2.29 4.78 .672 .402 .240 2.78 .439 .042 1 8 ET06LA 1891 2010 120 3 0 .504 2.57 8.01 1.258 .799 .217 2.66 .453 -.032 1 9 ET10B 1930 2010 81 3 0 .488 1.71 4.36 .921 .773 .233 2.81 .562 -.011 1 10 ET5UB 1932 2010 79 3 2 .319 1.73 3.95 .851 .844 .212 2.67 .559 -.029 1 11 ET25LB 1941 2010 70 3 0 .520 3.37 7.93 1.689 .780 .244 2.74 .464 .079 1 12 ET086B 1933 2010 78 3 0 .588 1.93 4.95 .823 .458 .341 2.47 .366 -.053 1 13 ET32B 1972 2010 39 1 1 .293 1.04 3.68 .851 .832 .321 2.92 .648 .017 1 14 ET30A 1971 2010 40 1 0 .336 1.97 5.70 .946 .660 .270 2.82 .733 -.136 1 15 ET25LA 1948 2010 63 3 0 .599 4.49 13.16 2.549 .845 .272 2.52 .507 -.029 2 16 ET16LB 1935 2006 72 3 0 .453 1.55 4.43 1.249 .918 .231 2.66 .444 .031 1 17 ET18B 1946 2010 65 3 0 .571 2.36 7.78 2.047 .923 .233 2.44 .369 .001 1 18 ET17LB 1937 2010 74 3 0 .670 2.02 4.01 .796 .790 .200 2.59 .446 -.028 1 19 ET64LA 1958 2010 53 2 0 .813 2.86 5.04 .900 .541 .261 2.59 .561 -.020 1 20 ET07LB 1936 2010 75 3 0 .555 2.65 20.49 3.166 .686 .321 2.50 .450 .106 1 21 ET27A 1945 2010 66 3 0 .581 4.80 8.04 1.600 .687 .204 2.58 .390 .003 1 22 ET07LA 1947 2010 64 3 0 .708 2.74 9.03 1.714 .824 .237 2.64 .430 -.062 1 23 ET01A 1933 2010 78 3 0 .530 1.20 4.04 .799 .819 .277 2.59 .469 -.101 1 24 ET18B 1946 2010 65 3 0 .568 2.36 7.76 2.052 .925 .224 2.51 .427 -.019 1 25 ET12AL 1939 2010 72 3 0 .661 1.99 8.45 1.271 .747 .297 2.66 .570 .025 1 26 ET03A 1935 2010 76 3 0 .588 2.58 6.85 1.529 .813 .263 2.72 .505 .004 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1801 71 3 .559 2.46 20.49 1.417 .772 .247 2.92 .478 -.008