Craig Creek, Virginia - va029 Additional Site Information C.A. Copenheaver Purpose of Collection: Climatology - precipitation analyses Cores stored at: Virginia Tech, Blacksburg, VA 24060 USA - cores available upon request COFECHA output: Chronology file name : VA029.CRN Measurement file name : VA029.RWL Date checked : 14JUL10 Checked by : B. Bauer Beginning year : 1722 Ending year : 2001 Principal investigators: C.A. Copenheaver Site name : Craig Creek Site location : Virginia Species information : QUAL WHITE OAK Latitude : +3721 Longitude : -08022 Elevation : 550M Series intercorrelation: 0.592 Avg mean sensitivity : 0.218 Avg standard deviation : 0.511 Avg autocorrelation : 0.741 Number dated series : 20 Segment length tested : 50 Number problem segments: 10 Pct problem segments : 6.29 PART 5: CORRELATION OF SERIES BY SEGMENTS: Craig Creek 12:16 Wed 14 Jul 2010 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 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1975 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 ccrwo11 1722 2001 .44 .65 .75 .72 .74 .82 .70 .67 .68 .72 .71 2 ccrwo10 1813 2001 .46 .50 .65 .80 .85 .85 .86 .86 3 ccrwo09 1826 2001 .70 .74 .86 .72 .72 .81 .81 4 ccrwo12 1842 2001 .75 .79 .72 .67 .71 .63 .63 5 ccrwo07 1778 2001 .80 .70 .60 .40 .28A .44 .49 .39 .42 6 ccrwo08 1754 1948 .38 .48 .52 .46 .20B .28A .42 7 ccrwo13 1826 2001 .73 .64 .77 .87 .80 .76 .74 8 ccrwo14 1790 2001 .74 .71 .68 .64 .77 .68 .54 .70 .69 9 ccrwo19 1790 2001 .67 .77 .72 .65 .59 .65 .78 .67 .66 10 ccrwo15 1830 2001 .16B .36 .77 .78 .78 .78 .76 11 ccrwo02 1877 2000 .77 .79 .71 .67 .67 12 ccrwo01 1870 2000 .54 .48 .40 .54 .66 .66 13 ccrwo03 1830 2001 .57 .48 .61 .82 .82 .73 .72 14 ccrwo04 1828 2000 .44 .57 .64 .68 .61 .58 .56 15 ccrwo16 1800 2001 .38 .57 .65 .63 .57 .59 .66 .65 16 ccrwo17 1737 2001 .23B .29A .03B .05B .33 .50 .55 .38 .34 .25A .23A 17 ccrwo20 1752 2001 .47 .49 .71 .74 .53 .56 .58 .53 .45 .46 18 ccrwo05 1810 2000 .60 .71 .57 .56 .72 .55 .39 .39 19 ccrwo06 1862 2000 .71 .62 .43 .40 .53 .52 20 ccrwo18 1762 2001 .59 .63 .63 .64 .66 .64 .68 .73 .71 .70 Av segment correlation .34 .48 .57 .57 .59 .58 .63 .64 .64 .63 .62 PART 7: DESCRIPTIVE STATISTICS: Craig Creek 12:16 Wed 14 Jul 2010 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 ccrwo11 1722 2001 280 11 0 .656 .89 2.49 .345 .674 .248 2.64 .334 .061 1 2 ccrwo10 1813 2001 189 8 0 .733 1.27 2.41 .501 .792 .205 2.76 .485 -.039 1 3 ccrwo09 1826 2001 176 7 0 .744 1.34 2.96 .629 .837 .239 2.69 .422 .002 1 4 ccrwo12 1842 2001 160 7 0 .679 1.48 4.49 .464 .672 .173 2.81 .437 -.031 1 5 ccrwo07 1778 2001 224 9 1 .492 1.00 5.04 .755 .872 .234 2.78 .365 -.014 1 6 ccrwo08 1754 1948 195 7 2 .375 1.04 2.80 .439 .798 .200 2.63 .418 .003 1 7 ccrwo13 1826 2001 176 7 0 .756 1.32 3.09 .553 .718 .252 2.85 .473 -.045 1 8 ccrwo14 1790 2001 212 9 0 .682 1.06 2.35 .327 .546 .230 2.65 .404 -.041 1 9 ccrwo19 1790 2001 212 9 0 .662 1.11 2.72 .352 .537 .230 2.66 .402 -.009 1 10 ccrwo15 1830 2001 172 7 1 .585 1.51 5.28 1.118 .899 .222 2.84 .522 .001 1 11 ccrwo02 1877 2000 124 5 0 .733 1.64 3.53 .472 .610 .210 2.64 .423 .043 1 12 ccrwo01 1870 2000 131 6 0 .529 1.45 3.36 .749 .821 .237 2.51 .377 -.050 1 13 ccrwo03 1830 2001 172 7 0 .674 1.37 2.87 .576 .792 .203 3.09 .507 .015 1 14 ccrwo04 1828 2000 173 7 0 .562 1.02 2.04 .366 .714 .206 2.58 .396 -.032 1 15 ccrwo16 1800 2001 202 8 0 .579 1.03 2.28 .479 .772 .245 2.91 .466 -.022 1 16 ccrwo17 1737 2001 265 11 6 .279 .77 5.30 .742 .926 .237 2.91 .406 .007 4 17 ccrwo20 1752 2001 250 10 0 .539 1.23 2.77 .341 .596 .176 2.57 .347 -.020 1 18 ccrwo05 1810 2000 191 8 0 .558 1.03 2.35 .311 .691 .192 2.77 .467 -.012 1 19 ccrwo06 1862 2000 139 6 0 .526 1.33 2.90 .440 .710 .174 2.55 .376 -.032 1 20 ccrwo18 1762 2001 240 10 0 .653 .78 3.16 .427 .822 .214 2.68 .369 -.031 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3883 159 10 .592 1.14 5.30 .511 .741 .218 3.09 .415 -.011