Old Government House, New Zealand - newz102 Additional Site Information Gretel Boswijk Purpose of collection: Archaeology - construction (felling dates) Cores stored at: Samples stored at the Tree-Ring Laboratory, School of Environment, University of Auckland. Available to view on site. References: Boswijk G. 2007. Tree-ring analysis of kauri (Agathis australis) house timbers from 22, 24 and 32 Wynyard Stree, 3 Alfred Street and Old Government House, University of Auckland, Auckland City. School of Geography, Geology and Environmental Science Working Paper 34. Auckland: University of Auckland. Fowler AM, Boswijk G, Lorrey AM, Gergis J, Pirie M, McCloskey SPJ, Palmer JG, Wunder J. 2012. Multi-centennial tree-ring record of ENSO- related activity in New Zealand. Nature Climate Change 2:172-176. NOTES: OGHS (Old Government House). The fomer residence of the Governor of New Zealand constructed in 1855-56. Twenty-three samples collected from weatherboards removed from the rear wall of the kitchen wing after a fire damaged the wall. Seven series crossdated. Raw ring width measurements (0.01 mm) and raw chronology. Because of the size of kauri and industrialized production (a) series only represent part of the growth span of the tree; (b) some probable 'same-tree series (two pairs). Site report available on request. COFECHA output: Chronology file name : NEWZ102.CRN Measurement file name : NEWZ102.RWL Date checked : 10SEP12 Checked by : B. Bauer Beginning year : 1521 Ending year : 1797 Principal investigators: Gretel Boswijk Site name : Old Government House Site location : New Zealand Species information : AGAU KAURI PINE Latitude : -3651 Longitude : 17446 Elevation : 39M Series intercorrelation: 0.555 Avg mean sensitivity : 0.239 Avg standard deviation : 0.501 Avg autocorrelation : 0.668 Number dated series : 7 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 4.35 PART 5: CORRELATION OF SERIES BY SEGMENTS: Old Government House 13:08 Mon 10 Sep 2012 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 1575 1600 1625 1650 1675 1700 1725 1750 1624 1649 1674 1699 1724 1749 1774 1799 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 OGH010 1668 1763 .34 .42 .44 .45 2 OGH011 1717 1780 .76 .49 .48 3 OGH013 1698 1797 .50 .51 .32A .34 4 OGH014 1521 1612 .41 5 OGH015 1617 1697 .77 .78 .84 6 OGH016 1696 1766 .66 .65 .65 7 OGH017 1595 1700 .55 .54 .72 .76 .73 Av segment correlation .48 .65 .75 .65 .58 .59 .48 .41 PART 7: DESCRIPTIVE STATISTICS: Old Government House 13:08 Mon 10 Sep 2012 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 OGH010 1668 1763 96 4 0 .381 .88 3.05 .500 .834 .273 2.72 .515 -.037 2 2 OGH011 1717 1780 64 3 0 .623 1.48 3.14 .546 .434 .311 2.69 .409 .036 1 3 OGH013 1698 1797 100 4 1 .395 1.58 3.17 .559 .622 .229 2.92 .486 .031 1 4 OGH014 1521 1612 92 1 0 .411 1.37 2.66 .441 .603 .240 2.84 .644 -.030 3 5 OGH015 1617 1697 81 3 0 .736 1.48 2.74 .483 .754 .188 2.49 .388 -.131 1 6 OGH016 1696 1766 71 3 0 .602 1.47 3.04 .597 .577 .312 2.56 .509 -.039 1 7 OGH017 1595 1700 106 5 0 .652 1.49 2.63 .420 .752 .166 2.56 .411 -.099 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 610 23 1 .555 1.39 3.17 .501 .668 .239 2.92 .483 -.041