Lake George, New York - ny020 Additional Site Information N. Pederson T. Norton Reference: Pederson, N., A.R. Bell, E.R. Cook, U. Lall, N. Devineni, R. Seager, K. Eggleston, and K.J. Vranes. In press 2013. Is an Epic Pluvial Masking the Water Insecurity of the Greater New York City Region? Journal of Climate, Early Online Release 2012 doi: http://dx.doi.org/10.1175/JCLI-D-11-00723.1 Notes: This collection of QUVE raw ring widths was made by N. Pederson on the west-facing slopes on the east side of Lake George in Hague, NY. These data were collected for a dendroecological study of southern temperate trees growing at or near a northern range margin. While the oldest trees in the stand were targeted, the goal of field sampling was to collect a range of existing tree ages within the stand. The stand in which they are sampled has a wide range of soil depth. At the time of sampling, the forest was fairly dense. Detrending of these raw data with closed-canopy or forest interior conditions in mind should be considered. The raw data in this collection contains values of -8888 for years where the rings were distorted or otherwise not useful for dendroclimatology. The latest version of ARSTAN reads these as dummy variables and can in-fill these gaps. COFECHA output: Chronology file name : NY020.CRN Measurement file name : NY020.RWL Date checked : 25JAN13 Checked by : B. Bauer Beginning year : 1836 Ending year : 2002 Principal investigators: N. Pederson T. Norton Site name : Lake George Site location : New York Species information : QUVE BLACK OAK Latitude : 4342 Longitude : -07338 Elevation : 387M Series intercorrelation: 0.696 Avg mean sensitivity : 0.253 Avg standard deviation : 0.527 Avg autocorrelation : 0.628 Number dated series : 32 Segment length tested : 50 Number problem segments: 5 Pct problem segments : 2.75 PART 5: CORRELATION OF SERIES BY SEGMENTS: Lake George 10:40 Fri 25 Jan 2013 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 1825 1850 1875 1900 1925 1950 1975 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 VBO01a 1836 2002 .70 .79 .78 .73 .63 .52 .53 2 VBO01b 1842 2002 .61 .65 .77 .76 .62 .64 .65 3 VBO02a 1862 2002 .80 .78 .73 .74 .71 .69 4 VBO02b 1851 2002 .62 .71 .66 .72 .66 .65 5 VBO03a 1870 2002 .82 .85 .71 .70 .79 .79 6 VBO03b 1867 2002 .62 .62 .75 .74 .73 .69 7 VBO04a 1872 2002 .66 .68 .67 .71 .73 .73 8 VBO04b 1896 2002 .80 .78 .67 .70 .69 9 VBO05a 1900 2002 .66 .74 .62 .59 10 VBO05b 1898 2002 .72 .71 .79 .68 .66 11 VBO06a 1899 2002 .73 .73 .76 .29A .28A 12 VBO07a 1884 2002 .91 .86 .80 .77 .78 13 VBO07b 1861 2002 .64 .76 .82 .78 .83 .83 14 VBO08a 1873 2002 .78 .80 .73 .69 .71 .71 15 VBO08b 1884 2002 .77 .72 .64 .65 .67 16 VBO10a 1868 2002 .68 .74 .79 .75 .81 .79 17 VBO10b 1868 2002 .66 .72 .78 .78 .74 .73 18 VBO11a 1863 2002 .76 .80 .74 .68 .76 .75 19 VBO11b 1870 2002 .77 .79 .57 .57 .79 .79 20 VBO13a 1866 2002 .33A .38 .89 .76 .54 .47 21 VBO14a 1920 2002 .80 .82 .82 .81 22 VBO15a 1842 2002 .69 .70 .62 .73 .77 .74 .74 23 VBO15b 1838 2002 .60 .57 .53 .72 .77 .78 .77 24 VBO16a 1851 2002 .66 .74 .79 .74 .67 .64 25 VBO16b 1851 2002 .69 .76 .79 .81 .79 .79 26 VBO17a 1901 2002 .65 .66 .72 .73 27 VBO17b 1878 2002 .76 .74 .65 .63 .64 28 VBO18a 1864 2002 .61 .65 .78 .85 .84 .85 29 VBO19a 1839 2002 .72 .74 .67 .70 .64 .44 .43 30 VBO19b 1856 2002 .79 .76 .79 .69 .32A .31A 31 VBO20a 1887 2002 .76 .73 .75 .67 .65 32 VBO20b 1887 1975 .80 .78 .72 .69 Av segment correlation .66 .68 .73 .74 .72 .68 .67 PART 7: DESCRIPTIVE STATISTICS: Lake George 10:40 Fri 25 Jan 2013 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 VBO01a 1836 2002 167 7 0 .676 1.17 2.54 .394 .637 .205 2.67 .420 .002 1 2 VBO01b 1842 2002 161 7 0 .664 1.14 3.07 .444 .709 .197 2.77 .400 -.010 1 3 VBO02a 1862 2002 141 6 0 .735 1.18 5.32 .732 .764 .243 2.80 .439 .044 1 4 VBO02b 1851 2002 152 6 0 .642 1.17 4.57 .759 .746 .239 2.70 .439 .047 1 5 VBO03a 1870 2002 133 6 0 .767 .97 2.14 .356 .502 .297 2.98 .589 -.027 1 6 VBO03b 1867 2002 136 6 0 .662 .93 3.59 .450 .650 .258 2.91 .381 -.011 1 7 VBO04a 1872 2002 131 6 0 .703 1.03 4.16 .847 .801 .337 2.80 .606 -.032 1 8 VBO04b 1896 2002 107 5 0 .743 1.14 3.93 .848 .783 .330 2.87 .438 -.012 1 9 VBO05a 1900 2002 103 4 0 .635 1.74 3.92 .696 .639 .223 2.63 .468 .032 1 10 VBO05b 1898 2002 105 5 0 .692 1.40 3.43 .606 .596 .286 2.59 .452 -.021 1 11 VBO06a 1899 2002 104 5 2 .491 .79 1.37 .204 .542 .196 2.45 .362 -.032 1 12 VBO07a 1884 2002 119 5 0 .850 1.15 2.46 .452 .510 .304 2.79 .524 -.070 1 13 VBO07b 1861 2002 142 6 0 .748 1.24 2.83 .509 .511 .314 2.82 .567 .022 1 14 VBO08a 1873 2002 130 6 0 .730 1.39 3.19 .510 .506 .266 2.74 .474 -.062 1 15 VBO08b 1884 2002 119 5 0 .718 1.38 2.87 .577 .601 .265 2.71 .417 -.070 1 16 VBO10a 1868 2002 135 6 0 .730 1.14 3.68 .700 .835 .269 2.74 .448 -.002 1 17 VBO10b 1868 2002 135 6 0 .717 1.36 3.72 .708 .753 .276 2.66 .442 .029 1 18 VBO11a 1863 2002 140 6 0 .738 1.22 2.99 .543 .601 .292 2.74 .497 -.007 1 19 VBO11b 1870 2002 133 6 0 .710 1.10 2.59 .440 .627 .257 2.80 .500 -.033 1 20 VBO13a 1866 2002 137 6 1 .482 .90 3.74 1.295 .318 .264 2.59 .334 .119 1 21 VBO14a 1920 2002 83 4 0 .817 1.63 3.02 .483 .223 .288 2.91 .675 .028 1 22 VBO15a 1842 2002 161 7 0 .714 .77 1.78 .297 .551 .280 2.76 .529 .075 1 23 VBO15b 1838 2002 165 7 0 .678 .80 1.93 .312 .612 .252 2.87 .555 .043 2 24 VBO16a 1851 2002 152 6 0 .701 1.01 2.59 .349 .626 .209 2.76 .441 .020 1 25 VBO16b 1851 2002 152 6 0 .757 1.01 2.48 .377 .651 .227 2.79 .476 -.021 1 26 VBO17a 1901 2002 102 4 0 .686 1.07 2.01 .296 .558 .210 2.57 .467 -.076 1 27 VBO17b 1878 2002 125 5 0 .701 .92 1.84 .283 .581 .206 2.75 .501 -.052 1 28 VBO18a 1864 2002 139 6 0 .741 1.05 2.42 .501 .747 .249 2.76 .484 .019 1 29 VBO19a 1839 2002 164 7 0 .621 .96 3.53 .530 .723 .209 2.90 .556 .005 1 30 VBO19b 1856 2002 147 6 2 .603 .94 3.72 .595 .807 .236 3.08 .503 -.023 1 31 VBO20a 1887 2002 116 5 0 .715 1.07 2.09 .350 .560 .226 2.84 .490 -.001 1 32 VBO20b 1887 1975 89 4 0 .780 1.33 2.52 .442 .554 .222 2.72 .414 .007 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4225 182 5 .696 1.11 5.32 .527 .628 .253 3.08 .478 .000