Sweet Briar College Old-Growth White Oak, Virginia - VA027 Additional Site Information D.M. Lawrence S.L. Stephenson H.S. Adams Measurement type: Total ring width Detrending: smoothing spline (66 percent) Purpose of Collection: Ecological study of forest stand Location of core material: David M. Lawrence, Mechanicsville, VA Notes: Site is on the grounds of Sweet Briar College, Sweet Briar, VA, USA. Chronology file name : VA027.CRN Measurement file name : VA027.RWL Date checked : 08FEB07 Checked by : B. Bauer Beginning year : 1749 Ending year : 1998 Principal investigators: D.M. Lawrence S.L. Stephenson H.S. Adams Site name : Sweet Briar College Old-Growth White Oak Site location : Virginia Species information : QUAL WHITE OAK Latitude : 3733 Longitude : -07904 Elevation : 230M Series intercorrelation: 0.540 Avg mean sensitivity : 0.164 Avg standard deviation : 0.385 Avg autocorrelation : 0.702 Number dated series : 17 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 3.60 PART 5: CORRELATION OF SERIES BY SEGMENTS: Sweet Briar College Old Growth QUAL 09:47 Thu 08 Feb 2007 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 001011 1930 1998 .38 .44 2 001012 1766 1998 .68 .64 .59 .47 .58 .65 .52 .55 .69 3 001021 1832 1998 .44 .46 .55 .68 .73 .67 4 001022 1797 1998 .40 .45 .34 .58 .76 .81 .78 .65 5 001031 1824 1998 .51 .54 .49 .58 .65 .54 .56 6 001032 1764 1998 .59 .56 .75 .68 .77 .78 .61 .56 .66 7 001041 1781 1998 .47 .34 .36 .43 .61 .72 .63 .46 8 001042 1867 1998 .47 .58 .57 .60 .58 9 001051 1783 1979 .74 .68 .46 .26A .43 .66 .59 .55 10 001052 1782 1998 .39 .39 .31A .21B .38 .65 .64 .42 11 001061 1903 1998 .69 .65 .65 12 001062 1852 1998 .39 .46 .43 .57 .66 13 001072 1907 1988 .36 .38 .27B 14 001081 1855 1998 .62 .65 .57 .50 .44 15 001082 1799 1998 .42 .43 .59 .55 .76 .83 .63 .44 16 001091 1781 1991 .36 .55 .56 .63 .69 .53 .35 .41 17 001092 1749 1998 .65 .72 .59 .45 .57 .70 .76 .61 .40 Av segment correlation .64 .52 .53 .47 .50 .61 .63 .57 .53 PART 7: DESCRIPTIVE STATISTICS: Sweet Briar College Old Growth QUAL 09:47 Thu 08 Feb 2007 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 001011 1930 1998 69 2 0 .390 .84 1.47 .260 .777 .149 2.73 .406 .014 1 2 001012 1766 1998 233 9 0 .599 1.01 1.87 .255 .664 .165 2.51 .326 .025 1 3 001021 1832 1998 167 6 0 .557 1.50 2.41 .278 .603 .126 2.58 .389 -.002 1 4 001022 1797 1998 202 8 0 .622 1.42 2.31 .369 .777 .132 2.73 .414 .032 1 5 001031 1824 1998 175 7 0 .570 1.49 2.37 .275 .423 .151 2.64 .365 .016 1 6 001032 1764 1998 235 9 0 .642 1.18 1.85 .240 .491 .160 2.58 .379 -.022 1 7 001041 1781 1998 218 8 0 .511 1.34 3.23 .584 .849 .174 2.69 .393 -.012 1 8 001042 1867 1998 132 5 0 .527 1.73 3.72 .541 .787 .151 2.63 .390 -.031 1 9 001051 1783 1979 197 8 1 .523 .89 1.89 .321 .805 .171 2.56 .326 .011 2 10 001052 1782 1998 217 8 2 .428 .68 1.52 .223 .768 .174 2.54 .313 -.005 1 11 001061 1903 1998 96 3 0 .666 1.40 2.82 .322 .392 .203 2.80 .560 .000 1 12 001062 1852 1998 147 5 0 .493 1.46 3.21 .646 .777 .240 2.69 .554 -.023 3 13 001072 1907 1988 82 3 1 .288 1.66 3.65 .791 .779 .214 3.01 .623 .117 1 14 001081 1855 1998 144 5 0 .534 1.82 3.00 .425 .573 .165 2.76 .561 .037 1 15 001082 1799 1998 200 8 0 .566 1.42 2.75 .467 .808 .151 2.64 .459 .021 1 16 001091 1781 1991 211 8 0 .465 1.36 3.02 .515 .845 .161 2.66 .406 -.003 1 17 001092 1749 1998 250 9 0 .587 1.18 1.97 .314 .725 .154 2.50 .300 .021 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2975 111 4 .540 1.29 3.72 .385 .702 .164 3.01 .402 .008