Mt. William, New Zealand - newz090 Additional information Moinuddin Ahmed Purpose of Collection: Climatology 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 For further details see: 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 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 COFECHA output: Chronology file name : NEWZ090.CRN Measurement file name : NEWZ090.RWL Date checked : 20FEB09 Checked by : B. Bauer Beginning year : 1580 Ending year : 1981 Principal investigators: Moinuddin Ahmed Site name : Mt. William Site location : New Zealand Species information : AGAU KAURI PINE Latitude : -3713 Longitude : 17502 Elevation : 375M Series intercorrelation: 0.592 Avg mean sensitivity : 0.330 Avg standard deviation : 0.601 Avg autocorrelation : 0.653 Number dated series : 11 Segment length tested : 50 Number problem segments: 6 Pct problem segments : 5.13 PART 5: CORRELATION OF SERIES BY SEGMENTS: Mt. William 14:56 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 1575 1600 1625 1650 1675 1700 1725 1750 1775 1800 1825 1850 1875 1900 1925 1950 1624 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 MWL0511 1780 1900 .62 .56 .38 .01B .02B 2 MWL0513 1780 1980 .39 .52 .59 .38 .55 .53 .34 .22A 3 MWL0521 1642 1980 .57 .64 .68 .66 .78 .76 .64 .77 .80 .67 .65 .73 .71 .68 4 MWL0522 1740 1980 .66 .75 .56 .44 .56 .65 .68 .76 .68 .71 5 MWL0523 1670 1980 .74 .74 .59 .63 .73 .66 .63 .77 .71 .69 .79 .80 .83 6 MWL0571 1754 1980 .55 .61 .52 .58 .56 .68 .75 .63 .67 7 MWL0572 1790 1980 .57 .56 .70 .65 .74 .66 .38 .46 8 MWL0631 1760 1980 .11B .22A .50 .58 .54 .60 .54 .42 .40 9 MWL0691 1580 1981 .41 .41B .33 .41 .49 .65 .75 .70 .60 .62 .71 .77 .66 .72 .83 .78 10 MWL0692 1580 1981 .41 .49 .56 .71 .66 .64 .76 .76 .67 .77 .76 .64 .67 .82 .77 .78 11 MWL0701 1740 1950 .34 .56 .54 .68 .77 .64 .70 .67 .67 Av segment correlation .41 .45 .49 .62 .64 .64 .65 .61 .55 .60 .65 .57 .60 .70 .62 .61 PART 7: DESCRIPTIVE STATISTICS: Mt. William 14:56 Fri 20 Feb 2009 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 MWL0511 1780 1900 121 5 2 .385 1.66 2.87 .584 .563 .262 2.68 .445 -.057 1 2 MWL0513 1780 1980 201 8 1 .467 1.40 4.21 .771 .768 .355 2.47 .337 -.018 3 3 MWL0521 1642 1980 339 14 0 .686 1.01 3.88 .593 .806 .254 2.72 .344 -.020 2 4 MWL0522 1740 1980 241 10 0 .632 1.44 3.50 .591 .705 .240 2.76 .392 -.067 1 5 MWL0523 1670 1980 311 13 0 .711 1.11 3.66 .563 .718 .282 2.90 .391 -.021 5 6 MWL0571 1754 1980 227 9 0 .597 1.05 2.58 .530 .442 .482 2.54 .346 -.017 2 7 MWL0572 1790 1980 191 8 0 .603 1.38 3.24 .661 .208 .541 2.69 .430 -.016 3 8 MWL0631 1760 1980 221 9 2 .404 1.50 4.30 .811 .627 .379 2.80 .432 -.027 1 9 MWL0691 1580 1981 402 16 1 .582 1.10 2.87 .471 .700 .267 2.86 .437 .011 2 10 MWL0692 1580 1981 402 16 0 .648 1.03 3.51 .571 .774 .291 2.55 .305 .007 2 11 MWL0701 1740 1950 211 9 0 .549 1.28 3.22 .637 .524 .436 2.45 .330 -.030 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 2867 117 6 .592 1.21 4.30 .601 .653 .330 2.90 .376 -.018