West Brattleboro Apartments historical, Vermont - vt010 Additional Site Information C. Baisan 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 Tsuga canadensis raw ring widths was made from the West Brattleboro Apartments in Brattleboro, VT by C. Baisan. Construction was in 1836/7 (likely). While we cannot say much about the original forest from which these timbers originated, it is not a stretch to consider detrending these raw data with closed-canopy or forest interior conditions in mind given eastern hemlock’s basic life-history traits and typical growth patterns. For the Pederson et al. (2012) paper, these data were combined with the Pack Forest (Tsuga canadensis) data that are accessible in the ITRDB. COFECHA output: Chronology file name : VT010.CRN Measurement file name : VT010.RWL Date checked : 29JAN13 Checked by : B. Bauer Beginning year : 1570 Ending year : 1869 Principal investigators: C. Baisan Site name : West Brattleboro Apartments historical Site location : Vermont Species information : TSCA EASTERN HEMLOCK Latitude : 4251 Longitude : -7236 Elevation : M Series intercorrelation: 0.576 Avg mean sensitivity : 0.191 Avg standard deviation : 0.293 Avg autocorrelation : 0.828 Number dated series : 14 Segment length tested : 50 Number problem segments: 7 Pct problem segments : 7.95 PART 5: CORRELATION OF SERIES BY SEGMENTS: West Brattleboro Apartments historic 09:36 Tue 29 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 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 WBA01 1697 1862 .65 .60 .63 .77 .61 .40 .46 2 WBA02 1708 1869 .62 .75 .79 .82 .53 .56 3 WBA04 1691 1836 .68 .74 .69 .72 .70 .63 4 WBA05 1646 1833 .84 .82 .80 .78 .79 .72 .69 .70 5 WBA06 1650 1836 .85 .78 .80 .82 .72 .71 .71 6 WBA22 1657 1770 .33 .56 .66 .62 7 WBA27 1625 1815 .47 .26A .23A .41 .58 .59 .28B 8 WBA29 1681 1830 .31A .25B .42 .61 .64 .65 9 WBA31 1655 1815 .47 .63 .52 .47 .52 .50 10 WBA51 1655 1836 .29A .32A .45 .50 .51 .51 .56 11 WBA54 1570 1808 .66 .63 .53 .36 .40 .52 .49 .64 12 WBA74 1612 1760 .46 .48 .48 .49 .46 .42 13 WBA81 1635 1773 .76 .74 .72 .68 .69 14 WBA91 1634 1760 .80 .77 .74 .71 .71 Av segment correlation .56 .66 .55 .56 .58 .61 .64 .61 .60 .51 PART 7: DESCRIPTIVE STATISTICS: West Brattleboro Apartments historical 09:36 Tue 29 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 WBA01 1697 1862 166 7 0 .564 .52 1.30 .240 .907 .154 2.73 .465 .014 1 2 WBA02 1708 1869 162 6 0 .646 .56 1.23 .218 .883 .159 2.70 .426 .013 1 3 WBA04 1691 1836 146 6 0 .652 .54 .99 .156 .766 .157 2.69 .483 .007 1 4 WBA05 1646 1833 188 8 0 .771 .62 1.44 .216 .786 .170 2.81 .451 -.011 1 5 WBA06 1650 1836 187 7 0 .775 .65 1.53 .235 .755 .184 2.71 .388 -.027 1 6 WBA22 1657 1770 114 4 0 .432 1.40 2.52 .411 .539 .205 2.47 .345 .000 1 7 WBA27 1625 1815 191 7 3 .380 .52 1.42 .265 .857 .211 2.81 .449 -.008 2 8 WBA29 1681 1830 150 6 2 .479 .82 2.01 .321 .771 .219 2.77 .467 -.025 1 9 WBA31 1655 1815 161 6 0 .490 .64 2.05 .461 .893 .247 2.65 .393 -.028 1 10 WBA51 1655 1836 182 7 2 .434 .56 1.69 .331 .861 .249 2.65 .387 .025 2 11 WBA54 1570 1808 239 8 0 .516 .81 2.19 .315 .894 .147 2.54 .356 .003 3 12 WBA74 1612 1760 149 6 0 .460 .63 1.70 .416 .941 .214 2.69 .425 -.028 3 13 WBA81 1635 1773 139 5 0 .728 .63 1.66 .273 .803 .188 2.73 .385 -.010 1 14 WBA91 1634 1760 127 5 0 .754 .65 1.61 .279 .814 .185 2.69 .383 -.030 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2301 88 7 .576 .67 2.52 .293 .828 .191 2.81 .414 -.007