Huia, New Zealand - newz085 Additional information Moinuddin Ahmed and John Ogden Detrend method: ARSTAN: Smoothing spline with 200 cutoff Cores are stored at: Tree-Ring Lab School of Geography, Geology and Environmental Science The University of Auckland 10 Symonds Street Auckland, New Zealand Cores available to view at the lab. References: Cores collected for ecology and climatology research: Ahmed, M. and Ogden, J. 1985. Modern New Zealand Tree-ring Chronologies III: Agathis australis (Salisb.) - kauri. Tree-ring Bulletin 45: 11-45 Reviewed by: Fowler, A., Boswijk, G. and Ogden, J. 2004. Tree-Ring Studies on Agathis australis (kauri): A Synthesis of Development Work on Late Holocene Chronologies. Tree-Ring Research 60(1): 15-29 For further details see: Fowler, A.M., Boswijk, G., Gergis, J. and Lorrey, A. 2008. ENSO history recorded in Agathis australis (kauri) tree rings: Part A: kauri's potential as an ENSO proxy. International Journal of Climatology 28: 1-20 Note: originally called 'WAIT' - renamed 'HUIA' in early 2000s. COFECHA output: Chronology file name : NEWZ085.CRN Measurement file name : NEWZ085.RWL Date checked : 20FEB09 Checked by : B. Bauer Beginning year : 1720 Ending year : 1981 Principal investigators: Moinuddin Ahmed John Ogden Site name : Huia Site location : New Zealand Species information : AGAU KAURI PINE Latitude : -3658 Longitude : 17434 Elevation : 300M Series intercorrelation: 0.600 Avg mean sensitivity : 0.456 Avg standard deviation : 0.754 Avg autocorrelation : 0.525 Number dated series : 12 Segment length tested : 50 Number problem segments: 1 Pct problem segments : 1.10 PART 5: CORRELATION OF SERIES BY SEGMENTS: Huia 14:50 Fri 20 Feb 2009 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HUI0471 1750 1981 .50 .52 .57 .63 .65 .70 .75 .70 .68 2 HUI0472 1800 1981 .52 .66 .72 .72 .69 .65 .66 3 HUI0491 1750 1981 .52 .59 .57 .64 .67 .71 .68 .70 .72 4 HUI0492 1790 1981 .51 .46 .67 .70 .71 .66 .40 .32A 5 HUI0541 1800 1981 .42 .76 .74 .65 .69 .65 .62 6 HUI0542 1760 1981 .57 .62 .69 .76 .73 .75 .74 .71 .68 7 HUI0551 1720 1981 .52 .71 .74 .81 .75 .73 .74 .70 .73 8 HUI0562 1840 1981 .47 .49 .59 .68 .59 .52 9 HUI0581 1830 1981 .42 .46 .72 .50 .34 .39 10 HUI0582 1830 1981 .50 .64 .65 .67 .65 .61 11 HUI0611 1800 1981 .60 .59 .66 .74 .72 .68 .67 12 HUI0612 1780 1981 .49 .50 .47 .49 .65 .48 .51 .51 Av segment correlation .52 .57 .56 .61 .64 .69 .67 .61 .59 PART 7: DESCRIPTIVE STATISTICS: Huia 14:50 Fri 20 Feb 2009 Page 6 ----------------------------------------------------------------------------------------------------------------------------------- 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 HUI0471 1750 1981 232 9 0 .603 1.69 4.76 .881 .639 .339 2.73 .457 .019 1 2 HUI0472 1800 1981 182 7 0 .646 1.59 5.42 1.271 .826 .421 2.83 .481 -.040 1 3 HUI0491 1750 1981 232 9 0 .607 .82 2.99 .559 .451 .580 2.85 .500 -.028 2 4 HUI0492 1790 1981 192 8 1 .539 1.44 4.83 1.235 .719 .521 2.62 .379 -.020 2 5 HUI0541 1800 1981 182 7 0 .582 1.49 3.47 .712 .518 .415 2.59 .464 -.038 1 6 HUI0542 1760 1981 222 9 0 .677 1.17 3.57 .764 .509 .560 2.68 .449 .021 1 7 HUI0551 1720 1981 262 9 0 .678 1.21 3.33 .638 .490 .454 2.72 .438 -.046 1 8 HUI0562 1840 1981 142 6 0 .524 1.38 3.48 .873 .616 .441 2.53 .388 -.008 1 9 HUI0581 1830 1981 152 6 0 .477 1.14 2.95 .567 .367 .471 2.73 .575 -.009 1 10 HUI0582 1830 1981 152 6 0 .593 1.52 3.19 .622 .397 .385 2.58 .408 -.001 1 11 HUI0611 1800 1981 182 7 0 .660 1.24 2.69 .570 .572 .387 2.62 .422 -.032 3 12 HUI0612 1780 1981 202 8 0 .549 1.01 2.15 .413 .205 .455 2.69 .440 .004 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2334 91 1 .600 1.30 5.42 .754 .525 .456 2.85 .451 -.015