Chronology file name : NONE Measurement file name : WA081.RWL Date checked : 28MAR96 Technician's name : MARIETTE SEKLECKI Supervisor's name : HENRI D. GRISSINO-MAYER Beginning year : 1609 Ending year : 1983 Principal investigators: K. BRIFFA AND F.H. SCHWEINGRUBER Site name : MT. ST. HELENS Site location : WASHIGNTON, USA Species information : ABAM PACIFIC SILVER FIR Latitude : 4609N Longitude : 12209W Elevation : 1200 M Series intercorrelation: 0.607 Avg mean sensitivity : 0.254 Avg standard deviation : 0.526 Avg autocorrelation : 0.786 Number dated series : 22 Segment length tested : 50 Number problem segments: 16 Pct problem segments : 6.48 Are there obvious misdated series? NO Number possible misdated series : N/A Percent misdated series : 0.00 Do they affect chronology quality? N/A Recommend withhold from ITRDB? N/A Comments: #5 5710031 SHOULD BE DIVIDED INTO TWO SERIES RATHER THAN BE MISSING ALL RINGS BETWEEN 1721-1776, #22 710122 SAME FOR 1776-1783 #7 710041 SHOULD BE TURNCATED AT 1715 #10 710052 1720-1774 HAS LOW CORRELATIONS DATA SET COULD BE IMPROVED, STILL AN EXCELLENT DATA SET PART 5: CORRELATION OF SERIES BY SEGMENTS: 19:12 Thu 28 MAR 1996 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under 0.3281 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 1850 1875 1900 1925 1950 1649 1674 1699 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 710011 1678 1983 .78 .73 .50 .53 .76 .76 .58 .69 .74 .75 .75 .73 2 710012 1648 1983 .60 .59 .72 .71 .64 .54 .67 .83 .77 .80 .73 .75 .80 .66 3 710021 1719 1983 .45 .45 .38 .52 .66 .57 .36 .54 .59 .62 .71 4 710022 1759 1983 .69 .69 .67 .51 .52 .64 .51 .42 .49 5 710031 1609 1981 .57 .49 .48 .45 .47 -.31B .08B .73 .79 .73 .77 .71 .69 .55 .46 6 710032 1619 1980 .60 .63 .71 .76 .75 .68 .68 .79 .72 .62 .79 .81 .78 .63 .57 7 710041 1622 1983 .18B .30A .68 .32A .28A .58 .74 .68 .64 .56 .46 .61 .66 .71 .70 8 710042 1667 1983 .64 .67 .63 .64 .72 .67 .61 .47 .58 .80 .83 .81 .82 9 710051 1824 1983 .72 .74 .64 .67 .47 .47 .59 10 710052 1720 1979 -.04B .12B .43 .75 .70 .49 .65 .79 .67 .58 .48 11 710061 1843 1983 .75 .70 .67 .68 .74 .69 12 710062 1709 1983 .42 .48 .61 .69 .67 .62 .73 .73 .70 .69 .59 13 710071 1654 1974 .67 .64 .59 .52 .59 .64 .74 .71 .66 .78 .86 .64 14 710072 1666 1983 .67 .58 .48 .46 .66 .51 .57 .69 .71 .73 .72 .60 .36 15 710081 1692 1983 .61 .63 .69 .69 .68 .72 .76 .77 .76 .75 .68 .65 16 710082 1703 1983 .59 .71 .78 .72 .75 .54 .49 .77 .78 .74 .73 17 710091 1731 1983 .35 .53 .66 .72 .63 .37 .49 .59 .57 .56 18 710092 1734 1983 .60 .62 .60 .67 .73 .74 .34B .26B .63 .65 19 710101 1721 1983 .47 .46 .36 .32B .29B .27A .42 .53 .66 .65 .63 20 710102 1727 1983 .28A .44 .53 .60 .69 .66 .76 .75 .79 .73 21 710121 1775 1983 .70 .82 .86 .61 .44 .49 .34 .27A 22 710122 1703 1983 .59 .64 .61 .61 .79 .82 .71 .65 .69 .43 .30B PART 7: DESCRIPTIVE STATISTICS: 19:12 Thu 28 MAR 1996 Page 7 ----------------------------------------------------------------------------------------------------------------------------------- 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 710011 1678 1983 306 12 0 0.695 1.10 2.60 0.516 0.797 0.251 1.99 0.335 -0.012 1 2 710012 1648 1983 336 14 0 0.686 0.79 2.33 0.390 0.794 0.277 1.93 0.268 -0.001 2 3 710021 1719 1983 265 11 0 0.544 0.92 2.72 0.390 0.701 0.230 2.19 0.361 0.008 1 4 710022 1759 1983 225 9 0 0.572 1.01 2.56 0.457 0.731 0.249 2.14 0.343 -0.024 3 5 710031 1609 1981 373 15 2 0.527 0.57 2.62 0.429 0.884 0.213 1.88 0.278 -0.009 2 6 710032 1619 1980 362 15 0 0.683 0.48 2.01 0.302 0.859 0.226 1.99 0.310 -0.033 1 7 710041 1622 1983 362 15 4 0.521 0.65 1.53 0.328 0.766 0.267 1.99 0.294 -0.022 1 8 710042 1667 1983 317 13 0 0.677 0.79 1.71 0.341 0.708 0.268 2.10 0.436 -0.034 1 9 710051 1824 1983 160 7 0 0.624 1.96 4.40 0.840 0.738 0.214 2.06 0.327 -0.012 1 10 710052 1720 1979 260 11 2 0.529 1.19 3.04 0.526 0.786 0.225 1.97 0.293 -0.014 1 11 710061 1843 1983 141 6 0 0.711 1.05 3.69 0.539 0.608 0.272 2.24 0.426 -0.108 2 12 710062 1709 1983 275 11 0 0.615 0.94 3.35 0.736 0.861 0.247 2.18 0.279 0.005 1 13 710071 1654 1974 321 12 0 0.656 1.01 3.09 0.664 0.884 0.237 1.94 0.271 -0.034 1 14 710072 1666 1983 318 13 0 0.568 1.07 3.06 0.636 0.868 0.237 2.02 0.274 -0.016 1 15 710081 1692 1983 292 12 0 0.696 1.10 2.98 0.548 0.791 0.242 2.07 0.330 -0.008 1 16 710082 1703 1983 281 11 0 0.688 1.17 2.30 0.392 0.625 0.227 2.02 0.392 -0.017 1 17 710091 1731 1983 253 10 0 0.553 1.40 4.62 0.775 0.777 0.292 1.91 0.342 -0.015 1 18 710092 1734 1983 250 10 2 0.574 1.28 3.75 0.759 0.785 0.300 2.11 0.301 -0.023 1 19 710101 1721 1983 263 11 3 0.446 1.09 6.70 0.820 0.757 0.288 2.07 0.319 -0.031 2 20 710102 1727 1983 257 10 1 0.609 1.04 3.60 0.497 0.706 0.279 2.14 0.380 -0.036 3 21 710121 1775 1983 209 8 1 0.548 0.67 1.82 0.396 0.802 0.276 1.85 0.236 -0.021 1 22 710122 1703 1983 281 11 1 0.622 0.70 3.13 0.618 0.868 0.301 2.05 0.308 -0.023 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 6107 247 16 0.607 0.96 6.70 0.526 0.786 0.254 2.24 0.320 -0.020