Gap Mountain, Virginia USA - VA033 Additional Site Information C.A. Copenheaver Purpose of Collection: Climatology - PDSI/PHDI analysis Cores are stored at: Virginia Tech, Forest Ecology Laboratory, Blacksburg, VA 24060 Reference: Copenheaver, C.A., Belote, R.T., Steele, J.K., Peterson, J.A., and Grinter, L.E. 2013. A dendroclimatic assessment of habitat specificity: Use of a functional trait to classify white oak. Journal of the Torrey Botanical Society 140:41-51. COFECHA output: Chronology file name : VA033.CRN Measurement file name : VA033.RWL Date checked : 29APR15 Checked by : B. Bauer Beginning year : 1914 Ending year : 2005 Principal investigators: C.A. Copenheaver Site name : Gap Mountain Site location : Virginia Species information : QUAL WHITE OAK Latitude : 3717 Longitude : -08028 Elevation : 730M Series intercorrelation: 0.524 Avg mean sensitivity : 0.216 Avg standard deviation : 0.826 Avg autocorrelation : 0.761 Number dated series : 20 Segment length tested : 50 Number problem segments: 8 Pct problem segments : 14.04 PART 5: CORRELATION OF SERIES BY SEGMENTS: Gap Mountain 15:40 Wed 29 Apr 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 1900 1925 1950 1975 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 gpqa20 1961 2005 .50 2 gpqa18 1941 2005 .69 .71 .61 3 gpqa17 1953 2005 -.11B-.02B 4 gpqa15 1930 2005 .48 .54 .47 5 gpqa14 1923 2005 .44 .40B .29B .30A 6 gpqa11 1920 2005 .69 .70 .72 .68 7 gpqa09 1914 2005 .53 .66 .69 .72 8 gpqa08 1948 2000 -.08B-.10B .00B 9 gpqa07 1954 2005 .76 .75 10 gpqa03 1951 2005 .65 .68 11 gpqa01 1935 2005 .64 .54 .57 12 gpqa10 1927 2005 .67 .77 .74 13 gpqa04 1953 2005 .53 .58 14 gpqa06 1952 2005 .66 .70 15 gpqa12 1915 2003 .62 .59 .44 .44 16 gpqa13 1917 2005 .57 .59 .43 .43 17 gpqa05 1953 2005 .62 .57 18 gpqa02 1929 2005 .64 .65 .54 19 gpqa19 1927 2005 .74 .68 .68 20 gpqa16 1928 2005 .48 .58 .60 Av segment correlation .57 .56 .53 .53 PART 7: DESCRIPTIVE STATISTICS: Gap Mountain 15:40 Wed 29 Apr 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 gpqa20 1961 2005 45 1 0 .496 1.46 3.01 .758 .809 .196 2.43 .433 -.049 1 2 gpqa18 1941 2005 65 3 0 .598 1.50 4.57 .870 .832 .235 2.68 .553 .028 1 3 gpqa17 1953 2005 53 2 2 -.066 1.80 3.99 .880 .903 .168 2.63 .550 .117 1 4 gpqa15 1930 2005 76 3 0 .504 1.69 3.61 .656 .683 .235 2.81 .606 -.051 1 5 gpqa14 1923 2005 83 4 3 .440 1.23 3.07 .481 .649 .198 2.74 .420 -.022 1 6 gpqa11 1920 2005 86 4 0 .672 2.07 4.78 .771 .691 .218 2.78 .496 .043 1 7 gpqa09 1914 2005 92 4 0 .588 1.28 3.12 .624 .799 .231 2.68 .380 -.028 1 8 gpqa08 1948 2000 53 3 3 -.105 1.51 4.97 1.282 .919 .260 2.66 .532 -.040 2 9 gpqa07 1954 2005 52 2 0 .740 2.36 6.63 1.199 .853 .228 2.70 .629 .050 1 10 gpqa03 1951 2005 55 2 0 .602 3.17 5.86 .986 .479 .259 2.64 .504 .048 1 11 gpqa01 1935 2005 71 3 0 .622 1.99 8.14 1.448 .719 .299 2.74 .591 .013 1 12 gpqa10 1927 2005 79 3 0 .651 1.73 3.57 .527 .560 .228 2.63 .395 -.010 1 13 gpqa04 1953 2005 53 2 0 .532 2.53 7.30 1.314 .899 .166 2.71 .460 .077 2 14 gpqa06 1952 2005 54 2 0 .665 2.19 5.92 .947 .796 .228 2.85 .641 .190 1 15 gpqa12 1915 2003 89 4 0 .534 1.88 3.80 .551 .733 .154 2.94 .496 -.029 1 16 gpqa13 1917 2005 89 4 0 .480 1.43 3.30 .570 .684 .243 2.57 .356 -.035 2 17 gpqa05 1953 2005 53 2 0 .568 1.87 7.41 1.248 .956 .155 2.62 .582 -.054 1 18 gpqa02 1929 2005 77 3 0 .515 1.39 4.24 .758 .847 .184 2.80 .531 -.053 1 19 gpqa19 1927 2005 79 3 0 .680 1.43 5.69 .870 .776 .253 2.74 .446 -.002 1 20 gpqa16 1928 2005 78 3 0 .513 1.49 3.16 .623 .855 .169 2.73 .491 .030 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1382 57 8 .524 1.75 8.14 .826 .761 .216 2.94 .496 .006