Old Maids Woods, New York - ny037 Additional Site Information N. Pederson 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: Most of this collection of QUVE raw ring widths was made by N. Pederson on an elevated glacial outwash near Schenectady, 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 decent soil depth; part of it appears to be an abandoned pasture. However, the forest was dense at the time of sampling and, while some think it is old-growth forest, there is much evidence of human disturbance. Because of this, detrending of these raw data should be conducted with closed-canopy or forest interior conditions and forest disturbance in mind. 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 : NY037.CRN Measurement file name : NY037.RWL Date checked : 27JAN13 Checked by : B. Bauer Beginning year : 1802 Ending year : 2001 Principal investigators: N. Pederson Site name : Old Maids Woods Site location : New York Species information : QUVE BLACK OAK Latitude : 4249 Longitude : -07359 Elevation : 107M Series intercorrelation: 0.643 Avg mean sensitivity : 0.158 Avg standard deviation : 0.770 Avg autocorrelation : 0.770 Number dated series : 24 Segment length tested : 50 Number problem segments: 2 Pct problem segments : 1.35 PART 5: CORRELATION OF SERIES BY SEGMENTS: Old MAids Woods 10:07 Sun 27 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 1800 1825 1850 1875 1900 1925 1950 1975 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 OM01a 1848 2001 .51 .51 .42 .51 .67 .73 .71 2 OM02a 1838 2001 .71 .72 .72 .34 .20B .55 .54 3 OM03a 1948 2001 .55 .69 .69 4 OM05a 1810 2001 .67 .63 .68 .68 .76 .85 .78 .78 5 OM05b 1802 2001 .59 .60 .72 .74 .57 .71 .72 .72 6 OM06a 1809 2001 .68 .65 .73 .67 .63 .72 .68 .72 7 OM07a 1825 2001 .63 .48 .61 .66 .68 .53 .52 8 OM08a 1931 2001 .66 .69 .68 9 OM08b 1932 1988 .63 .52 10 OM09a 1819 2001 .61 .69 .54 .57 .70 .67 .77 .76 11 OM10a 1813 2001 .70 .72 .83 .78 .56 .65 .77 .79 12 OM11a 1834 2001 .72 .70 .59 .59 .71 .82 .82 13 OM11b 1845 2001 .78 .79 .81 .73 .82 .84 .84 14 OM12a 1918 2001 .72 .73 .75 .75 15 OM14a 1903 2001 .68 .76 .85 .86 16 OM15a 1910 2001 .66 .81 .87 .87 17 OM16a 1811 2001 .68 .63 .48 .44 .64 .64 .57 .48 18 OM16b 1816 2001 .73 .75 .51 .38 .51 .48 .44 .37B 19 OM17a 1813 2001 .70 .65 .61 .60 .53 .55 .39 .38 20 OM18b 1837 2001 .66 .72 .67 .69 .78 .83 .82 21 OM19a 1809 2001 .80 .85 .72 .41 .42 .68 .80 .80 22 0M19b 1802 2001 .71 .68 .64 .50 .36 .57 .78 .77 23 OM19c 1802 1855 .83 .82 24 OM20a 1923 2001 .58 .58 .58 .54 Av segment correlation .70 .69 .65 .60 .59 .66 .69 .69 PART 7: DESCRIPTIVE STATISTICS: Old MAids Woods 10:07 Sun 27 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 OM01a 1848 2001 154 7 0 .554 2.58 4.79 1.487 .551 .158 2.43 .257 .034 1 2 OM02a 1838 2001 164 7 1 .558 .48 3.56 3.528 .940 .137 2.70 .441 .024 1 3 OM03a 1948 2001 54 3 0 .578 1.83 2.95 .389 .413 .161 2.62 .416 -.058 1 4 OM05a 1810 2001 192 8 0 .708 1.87 3.24 .488 .712 .150 2.53 .382 .016 1 5 OM05b 1802 2001 200 8 0 .647 1.84 4.28 .577 .829 .145 2.79 .458 .016 1 6 OM06a 1809 2001 193 8 0 .668 1.65 3.76 .488 .777 .148 2.87 .411 .001 1 7 OM07a 1825 2001 177 7 0 .572 1.38 3.07 .466 .824 .151 2.56 .394 .009 1 8 OM08a 1931 2001 71 3 0 .625 1.90 3.91 .921 .846 .185 2.66 .564 -.013 1 9 OM08b 1932 1988 57 2 0 .526 2.39 5.78 1.122 .795 .172 2.73 .592 .004 1 10 OM09a 1819 2001 183 8 0 .643 1.49 2.39 .366 .674 .156 2.63 .404 .052 2 11 OM10a 1813 2001 189 8 0 .712 1.47 3.43 .525 .746 .179 2.61 .394 .039 1 12 OM11a 1834 2001 168 7 0 .696 1.45 2.32 .322 .666 .143 2.58 .384 .029 1 13 OM11b 1845 2001 157 7 0 .786 2.27 4.31 .874 .905 .127 2.61 .384 .045 2 14 OM12a 1918 2001 84 4 0 .693 2.53 6.93 1.483 .881 .178 2.58 .465 .014 1 15 OM14a 1903 2001 99 4 0 .777 3.25 5.39 .878 .722 .155 2.67 .523 .060 1 16 OM15a 1910 2001 92 4 0 .786 3.10 6.56 1.236 .832 .192 2.63 .449 .026 1 17 OM16a 1811 2001 191 8 0 .562 1.63 3.65 .619 .862 .137 2.76 .380 .018 1 18 OM16b 1816 2001 186 8 1 .536 1.53 3.41 .598 .869 .146 2.72 .386 -.023 1 19 OM17a 1813 2001 189 8 0 .539 1.39 3.95 .590 .806 .167 2.69 .405 -.032 1 20 OM18b 1837 2001 165 7 0 .717 1.74 3.21 .455 .614 .168 2.78 .400 .007 1 21 OM19a 1809 2001 193 8 0 .682 1.15 2.68 .392 .749 .170 2.68 .368 .012 1 22 0M19b 1802 2001 200 8 0 .628 1.27 3.93 .509 .777 .189 2.59 .379 .010 2 23 OM19c 1802 1855 54 2 0 .827 1.46 3.59 .614 .730 .221 2.61 .542 .130 1 24 OM20a 1923 2001 79 4 0 .494 1.84 2.62 .449 .781 .132 2.89 .640 .072 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 3491 148 2 .643 1.70 6.93 .770 .770 .158 2.89 .413 .018