Bolsover Castle, Derbyshire, United Kingdom - BRIT076 Additional Site Information Alison J. Arnold Robert E. Howard Cliff D. Litton NOTES: Tree-ring Analysis of Timbers from the Roof of the Keep, or Little Castle, Bolsover Castle, Derbyshire Analysis of samples taken from roof timbers of the Keep resulted in the construction and dating of site sequence BLSBSQ01, containing 16 samples and spanning period AD 1532-1749 Reference: Arnold, A J, Howard, R E, & Litton, C D. 2003. Tree-ring Analysis of Timbers from the Roof of the Keep, or Little Castle, Bolsover Castle, Derbyshire. Centre for Archaeology Report 15/2003 Historic England website, Research results: https://research.historicengland.org.uk/redirect.aspx?id=5214|Tree-Ring%20Analysis%20of%20Timbers%20from%20the%20Roof%20of%20the%20Keep%20or COFECHA output: Chronology file name : BRIT076.CRN Measurement file name : BRIT076.RWL Date checked : 15NOV19 Checked by : B. Bauer Beginning year : 1532 Ending year : 1749 Principal investigators: Alison J. Arnold Robert E. Howard Cliff D. Litton Site name : Bolsover Castle Site location : UK Species information : QUSP OAK Latitude : 5314 Longitude : -00118 Elevation : M Series intercorrelation: 0.605 Avg mean sensitivity : 0.211 Avg standard deviation : 0.488 Avg autocorrelation : 0.784 Number dated series : 32 Segment length tested : 50 Number problem segments: 4 Pct problem segments : 2.11 PART 5: CORRELATION OF SERIES BY SEGMENTS: Bolsover Castle 11:10 Fri 15 Nov 2019 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 1525 1550 1575 1600 1625 1650 1675 1700 1574 1599 1624 1649 1674 1699 1724 1749 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 BLSB01A 1553 1728 .72 .56 .48 .69 .54 .50 .47 2 BLSB01B 1553 1728 .78 .60 .53 .71 .52 .43 .40 3 BLSB02A 1540 1711 .65 .71 .74 .71 .61 .62 .49 4 BLSB02B 1540 1711 .76 .77 .78 .65 .52 .62 .43 5 BLSB03A 1569 1749 .61 .71 .78 .69 .65 .75 .66 6 BLSB03B 1569 1749 .72 .79 .83 .67 .65 .72 .58 7 BLSB04A 1606 1709 .60 .61 .64 .66 8 BLSB04B 1606 1709 .60 .59 .55 .56 9 BLSB05A 1554 1716 .80 .74 .55 .48 .40 .46 10 BLSB05B 1554 1716 .79 .77 .54 .44 .47 .54 11 BLSB06A 1623 1709 .73 .69 .58 .55 12 BLSB06B 1642 1749 .67 .64 .59 .16B 13 BLSB07A 1587 1676 .57 .63 .63 .65 14 BLSB07B 1587 1686 .67 .68 .69 .57 15 BLSB08A 1536 1709 .50 .66 .66 .70 .67 .55 .47 16 BLSB08B 1536 1709 .45 .64 .62 .67 .66 .53 .32B 17 BLSB09A 1542 1749 .52 .58 .61 .71 .57 .53 .71 .74 18 BLSB09B 1542 1749 .41 .44 .44 .59 .53 .44 .66 .77 19 BLSB10A 1532 1722 .73 .66 .62 .69 .62 .65 .81 20 BLSB10B 1532 1722 .67 .75 .67 .70 .63 .57 .72 21 BLSB11A 1540 1724 .62 .66 .66 .73 .64 .55 .52 22 BLSB11B 1540 1724 .71 .77 .85 .86 .79 .73 .58 23 BLSB12A 1570 1730 .45 .46 .66 .59 .59 .70 .71 24 BLSB12B 1570 1730 .69 .70 .67 .60 .53 .53 .53 25 BLSB13A 1610 1749 .64 .45B .54 .40B .36 26 BLSB13B 1610 1749 .61 .49 .63 .71 .59 27 BLSB14A 1553 1722 .73 .73 .76 .74 .70 .79 28 BLSB14B 1553 1722 .72 .64 .62 .66 .70 .80 29 BLSB15A 1606 1749 .72 .62 .50 .55 .60 30 BLSB15B 1606 1749 .62 .61 .58 .57 .55 31 BLSB16A 1600 1722 .70 .56 .46 .45 32 BLSB16B 1600 1722 .63 .53 .55 .68 Av segment correlation .60 .68 .66 .67 .61 .58 .59 .55 PART 7: DESCRIPTIVE STATISTICS: Bolsover Castle 11:10 Fri 15 Nov 2019 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 BLSB01A 1553 1728 176 7 0 .605 .90 2.71 .569 .869 .223 2.74 .432 -.014 1 2 BLSB01B 1553 1728 176 7 0 .569 .91 2.75 .578 .877 .226 2.47 .270 -.008 1 3 BLSB02A 1540 1711 172 7 0 .615 .94 4.36 .898 .928 .220 2.61 .438 -.036 2 4 BLSB02B 1540 1711 172 7 0 .620 .96 4.40 .928 .938 .226 2.67 .422 .015 1 5 BLSB03A 1569 1749 181 7 0 .648 1.07 2.02 .310 .675 .192 2.45 .312 -.017 2 6 BLSB03B 1569 1749 181 7 0 .648 1.07 1.97 .307 .705 .178 2.48 .288 -.025 2 7 BLSB04A 1606 1709 104 4 0 .629 1.12 2.49 .502 .803 .198 2.65 .556 -.043 4 8 BLSB04B 1606 1709 104 4 0 .589 1.12 2.68 .508 .796 .194 2.56 .445 .020 5 9 BLSB05A 1554 1716 163 6 0 .612 .87 2.20 .446 .856 .202 2.67 .429 -.029 4 10 BLSB05B 1554 1716 163 6 0 .617 .87 2.26 .446 .856 .206 2.67 .448 .027 7 11 BLSB06A 1623 1709 87 4 0 .612 1.06 2.93 .465 .798 .183 2.72 .575 -.108 2 12 BLSB06B 1642 1749 108 4 1 .354 .73 1.81 .322 .823 .180 2.79 .473 -.024 1 13 BLSB07A 1587 1676 90 4 0 .616 1.73 3.46 .726 .851 .199 2.59 .443 -.006 1 14 BLSB07B 1587 1686 100 4 0 .590 1.60 3.62 .813 .877 .199 2.56 .394 -.021 1 15 BLSB08A 1536 1709 174 7 0 .583 1.03 2.87 .504 .722 .301 2.80 .493 .020 1 16 BLSB08B 1536 1709 174 7 1 .529 1.04 2.81 .507 .734 .293 2.69 .438 .005 1 17 BLSB09A 1542 1749 208 8 0 .613 .91 4.49 .585 .904 .198 2.58 .359 -.051 3 18 BLSB09B 1542 1749 208 8 0 .549 .91 3.94 .564 .903 .199 2.52 .360 .001 7 19 BLSB10A 1532 1722 191 7 0 .698 1.14 3.79 .678 .889 .199 2.57 .488 .029 6 20 BLSB10B 1532 1722 191 7 0 .671 1.14 3.53 .664 .895 .190 2.67 .409 .006 6 21 BLSB11A 1540 1724 185 7 0 .604 .93 2.40 .467 .847 .205 2.65 .348 .034 6 22 BLSB11B 1540 1724 185 7 0 .702 .92 2.33 .460 .847 .211 2.58 .305 .017 1 23 BLSB12A 1570 1730 161 7 0 .583 1.09 2.17 .335 .710 .190 2.60 .449 .000 1 24 BLSB12B 1570 1730 161 7 0 .581 1.09 2.07 .332 .770 .164 2.57 .337 -.022 4 25 BLSB13A 1610 1749 140 5 2 .478 .62 1.16 .200 .531 .254 2.55 .450 -.055 2 26 BLSB13B 1610 1749 140 5 0 .594 .62 1.21 .203 .492 .277 2.62 .491 .012 1 27 BLSB14A 1553 1722 170 6 0 .739 1.14 2.72 .391 .682 .214 2.61 .430 .034 1 28 BLSB14B 1553 1722 170 6 0 .690 1.13 2.69 .385 .683 .219 2.67 .433 .007 1 29 BLSB15A 1606 1749 144 5 0 .590 1.31 2.68 .450 .759 .198 2.54 .433 -.058 4 30 BLSB15B 1606 1749 144 5 0 .564 1.29 2.62 .442 .771 .182 2.65 .473 -.009 4 31 BLSB16A 1600 1722 123 4 0 .509 .89 1.42 .226 .534 .188 2.58 .394 -.036 3 32 BLSB16B 1600 1722 123 4 0 .588 .89 1.68 .241 .524 .198 2.65 .472 -.046 3 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 4969 190 4 .605 1.02 4.49 .488 .784 .211 2.80 .413 -.009