Hoanga Road, New Zealand - newz099 Additional Site Information Gretel Boswijk and Anthony Fowler Purpose of collection: Archaeology - construction (felling dates) Cores stored at: HOAN (Hoanga) radial sections are stored at the Tree-Ring Laboratory, School of Environment, University of Auckland References: Boswijk G. 2004. Tree-ring analysis of buried kauri (Agathis australis) from Hoanga Road, Dargaville, and Pouto, north Kaipara Peninsula. School of Geography and Environmental Science Working Paper 24. 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: The Hoanga sample was collected in early 2000s for Royal Society Marsden funded ENSO project (PI: AM Fowler). The parent tree was probably a sinker log or logging relic as the source site was close to the Northern Wairoa river, used for floating logs downstream to timber mills. Raw ring width measurements (0.01 mm) for three radii. Basic details in Fowler et al 2012 Supplementary Information. Site report available on request. COFECHA output: Chronology file name : NEWZ099.CRN Measurement file name : NEWZ099.RWL Date checked : 10SEP12 Checked by : B. Bauer Beginning year : 1093 Ending year : 1660 Principal investigators: Gretel Boswijk Anthony Fowler Site name : Hoanga Road Site location : New Zealand Species information : AGAU KAURI PINE Latitude : -3552 Longitude : 17355 Elevation : 5M Series intercorrelation: 0.711 Avg mean sensitivity : 0.404 Avg standard deviation : 0.571 Avg autocorrelation : 0.524 Number dated series : 3 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Hoanga Road 13:01 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 1100 1125 1150 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1149 1174 1199 1224 1249 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HOA001D 1093 1660 .79 .81 .85 .84 .78 .77 .75 .65 .68 .77 .77 .67 .71 .63 .53 .51 .46 .54 .55 .60 2 HOA001A 1113 1660 .80 .79 .84 .85 .86 .68 .60 .76 .80 .80 .79 .87 .86 .80 .77 .83 .77 .63 .61 .59 3 HOA001B 1112 1628 .82 .80 .79 .83 .79 .76 .75 .69 .72 .77 .63 .64 .69 .66 .68 .54 .43 .61 .63 .66 Av segment correlation .80 .80 .83 .84 .81 .74 .70 .70 .73 .78 .73 .73 .75 .70 .66 .63 .56 .60 .60 .62 PART 5: CORRELATION OF SERIES BY SEGMENTS: Hoanga Road 13:01 Mon 10 Sep 2012 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 1649 1674 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HOA001D 1093 1660 .61 .68 2 HOA001A 1113 1660 .59 .70 3 HOA001B 1112 1628 .64 Av segment correlation .62 .69 PART 7: DESCRIPTIVE STATISTICS: Hoanga Road 13:01 Mon 10 Sep 2012 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- 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 HOA001D 1093 1660 568 22 0 .685 .81 2.76 .458 .623 .336 2.73 .386 -.026 5 2 HOA001A 1113 1660 548 22 0 .751 1.09 3.75 .583 .530 .404 2.71 .415 -.035 5 3 HOA001B 1112 1628 517 21 0 .696 1.29 3.84 .683 .408 .478 2.57 .398 -.045 5 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1633 65 0 .711 1.05 3.84 .571 .524 .404 2.73 .400 -.035