Abbey Street, Kilkenny, Ireland - BRIT045 Additional Site Information Brown, D.M. Detrending Method: Negative exponential or linear regression of any slope Cross sections are stored and available for examination at the Palaeoecology Centre, 42 Fitzwilliam Street, Belfast, BT9 6AX. Northern Ireland. COFECHA output: [] DENDROCHRONOLOGY PROGRAM LIBRARY Run ABBEY Program COF 14:41 Mon 02 AUG 1999 Page 1 [] [] P R O G R A M C O F E C H A Version 3.00P 23591 ------------------------------------------------------------------------- ---------------------------------------------------------- QUALITY CONTROL AND DATING CHECK OF TREE-RING MEASUREMENTS Title of run: Abbey Street, Kilkenny File of DATED series: a:abbey.tuc CONTENTS: Part 1: Title page, options selected, summary, absent rings by series Part 2: Histogram of time spans Part 3: Master series with sample depth and absent rings by year Part 4: Bar plot of Master Dating Series Part 5: Correlation by segment of each series with Master Part 6: Potential problems: low correlation, divergent year-to-year changes, absent rings, outliers Part 7: Descriptive statistics RUN CONTROL OPTIONS SELECTED VALUE 1 Cubic smoothing spline 50 avelength cutoff for filtering 32 years 2 Segments examined are 50 years lagged successively by 25 years 3 Autoregressive model applied A Residuals are used in master dating series and testing 4 Series transformed to logarithms Y Each series log-transformed for master dating series and testing 5 Critical correlation, 99 onfidence level .3281 6 Master dating series saved N 7 Ring measurements listed N 8 Parts printed 1234567 9 Absent rings included in master series N Time span of Master dating series is 936 to 1240 305 years Continuous time span is 936 to 1240 305 years Portion with two or more series is 947 to 1185 239 years **************************************** *C* Number of dated series 5 *C* *O* Master series 936 1240 305 yrs *O* *F* Total rings in all series 1086 *F* *E* Total dated rings checked 1020 *E* *C* Series intercorrelation .522 *C* *H* Average mean sensitivity .238 *H* *A* Segments, possible problems 4 *A* **************************************** ABSENT RINGS listed by SERIES: (See Master Dating Series for absent rings listed by year) No ring measurements of zero value PART 2: TIME PLOT OF TREE-RING SERIES: Abbey Street, Kilkenny 14:41 Mon 02 AUG 1999 Page 2 ------------------------------------------------------------------------- ---------------------------------------------------------- 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 Beg End Ident Seq year year Yrs : : : : : : : : : : : : : : : : : : : : : -------- --- ---- ---- ---- <=================> . . . . . . . . . . . . . . . . . Q 9730 1 983 1168 186 ====================> . . . . . . . . . . . . . . . . . Q 9731 2 936 1185 250 =================> . . . . . . . . . . . . . . . . . Q 9732 3 972 1157 186 <================> . . . . . . . . . . . . . . . . . Q 9733 4 996 1165 170 ==========================>. . . . . . . . . . . . . . . . Q 9734 5 947 1240 294 : : : : : : : : : : : : : : : : : : : : : 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 PART 5: CORRELATION OF SERIES BY SEGMENTS: Abbey Street, Kilkenny 14:41 Mon 02 AUG 1999 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 925 950 975 1000 1025 1050 1075 1100 1125 1150 974 999 1024 1049 1074 1099 1124 1149 1174 1199 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 Q 9730 983 1168 .57 .46 .50 .72 .76 .76 .65 2 Q 9731 936 1185 .36 .42 .51 .56 .45 .41 .57 .68 .58 .27B 3 Q 9732 972 1157 .71 .65 .65 .68 .74 .71 .70 .63 4 Q 9733 996 1165 .53 .52 .61 .57 .66 .65 .56 5 Q 9734 947 1240 .36 .46 .48 .41 .38 .52 .48 .26B .21B .10B PART 6: POTENTIAL PROBLEMS: Abbey Street, Kilkenny 14:41 Mon 02 AUG 1999 Page 7 ------------------------------------------------------------------------- ---------------------------------------------------------- For each series with potential problems the following diagnostics may appear: [A] Correlations with master dating series of flagged 50-year segments of series filtered with 32-year spline, at every point from ten years earlier (-10) to ten years later ( 10) than dated [B] Effect of those data values which most lower or raise correlation with master series [C] Year-to-year changes very different from the mean change in other series [D] Absent rings (zero values) [E] Values which are statistical outliers from mean for the year ========================================================================= ========================================================== Q 9730 983 to 1168 186 years Series 1 [B] Entire series, effect on correlation ( .638) is: Lower 1026 -.013 1098 -.011 1045 -.010 1037 -.009 Higher 1129 .033 1054 .015 1007 .008 1085 .007 [E] Outliers 2 3.0 SD above or -4.5 SD below mean for year 1030 3.3 SD; 1098 3.2 SD ========================================================================= ========================================================== Q 9731 936 to 1185 250 years Series 2 [*] Early part of series cannot be checked from 936 to 946 -- not matched by another series [A] Segment High -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 --------- ---- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 1136 1185 -3 .17 -.16 -.08 .15 .00 -.12 .07 .41*-.28 -.10 .27|-.01 -.10 .00 -.13 -.03 -.12 .12 -.19 .01 .00 [B] Entire series, effect on correlation ( .452) is: Lower 1177 -.025 982 -.020 1180 -.015 947 -.010 Higher 1129 .022 1054 .008 1007 .008 1085 .008 1136 to 1185 segment: Lower 1177 -.097 1180 -.050 1142 -.032 1171 -.022 Higher 1156 .031 1169 .027 1148 .026 1158 .025 [C] Year-to-year changes diverging by over 4.0 std deviations: 1177 1178 -4.3 SD [E] Outliers 11 3.0 SD above or -4.5 SD below mean for year 947 -4.9 SD; 948 -5.3 SD; 958 3.4 SD; 982 5.2 SD; 1002 3.2 SD; 1037 3.3 SD; 1073 -4.6 SD; 1087 3.5 SD; 1126 3.2 SD; 1171 3.2 SD; 1177 5.7 SD ========================================================================= ========================================================== Q 9732 972 to 1157 186 years Series 3 [B] Entire series, effect on correlation ( .670) is: Lower 1148 -.015 1150 -.012 1120 -.009 1136 -.008 Higher 1129 .024 1054 .013 1135 .007 1007 .007 [E] Outliers 1 3.0 SD above or -4.5 SD below mean for year 1148 -4.8 SD ========================================================================= ========================================================== Q 9733 996 to 1165 170 years Series 4 [B] Entire series, effect on correlation ( .579) is: Lower 1005 -.016 1150 -.014 1148 -.011 1140 -.010 Higher 1129 .037 1054 .020 1135 .010 1035 .009 [E] Outliers 2 3.0 SD above or -4.5 SD below mean for year 1005 4.8 SD; 1150 3.9 SD ========================================================================= ========================================================== Q 9734 947 to 1240 294 years Series 5 [*] Later part of series cannot be checked from 1186 to 1240 -- not matched by another series [A] Segment High -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 --------- ---- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 1100 1149 3 .12 .05 -.05 .07 -.21 -.10 -.31 .10 .17 -.33 .26| .09 -.07 .32*-.09 -.07 .09 .08 -.17 -.27 .10 1125 1174 -7 -.09 -.07 -.19 .42*-.28 -.06 -.15 .06 .00 -.09 .21| .13 -.03 .09 -.11 -.10 .13 .03 .08 -.03 -.03 1136 1185 -7 -.07 -.07 -.29 .37*-.25 -.01 -.18 .11 -.06 -.01 .10| .11 -.34 .32 .14 -.29 .06 .16 .01 -.06 .00 [B] Entire series, effect on correlation ( .345) is: Lower 1180 -.016 1117 -.013 1177 -.012 947 -.010 Higher 1104 .010 973 .009 1035 .008 1129 .007 1100 to 1149 segment: Lower 1117 -.056 1149 -.031 1145 -.028 1120 -.025 Higher 1104 .051 1129 .050 1135 .031 1113 .030 1125 to 1174 segment: Lower 1150 -.034 1149 -.030 1145 -.027 1148 -.024 Higher 1129 .060 1135 .036 1169 .034 1156 .023 1136 to 1185 segment: Lower 1180 -.038 1149 -.028 1145 -.025 1150 -.024 Higher 1169 .031 1179 .026 1182 .025 1158 .025 [E] Outliers 14 3.0 SD above or -4.5 SD below mean for year 947 4.9 SD; 948 5.3 SD; 949 3.9 SD; 990 3.5 SD; 1045 3.1 SD; 1046 3.5 SD; 1069 3.2 SD; 1117 5.3 SD; 1120 3.9 SD; 1143 3.5 SD; 1163 4.3 SD; 1177 -5.7 SD; 1180 3.6 SD; 1181 3.2 SD ========================================================================= ========================================================== PART 7: DESCRIPTIVE STATISTICS: Abbey Street, Kilkenny 14:41 Mon 02 AUG 1999 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 Q 9730 983 1168 186 7 0 .638 .59 1.45 .249 .748 .231 1.93 .313 -.031 1 2 Q 9731 936 1185 250 10 1 .452 .43 1.11 .168 .740 .223 2.11 .377 -.030 1 3 Q 9732 972 1157 186 8 0 .670 .60 1.28 .199 .629 .224 2.11 .357 .000 1 4 Q 9733 996 1165 170 7 0 .579 .62 1.63 .227 .585 .250 2.21 .363 -.012 1 5 Q 9734 947 1240 294 10 3 .345 .34 1.18 .219 .823 .257 2.19 .314 -.008 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1086 42 4 .522 .49 1.63 .210 .720 .238 2.21 .343 -.016 - = [ COFECHA ABBEYCOF ] = -