Breakspear House, Harefield, Hillingdon, London, United Kingdom - BRIT083 Additional Site Information Alison J. Arnold Robert E. Howard NOTES: The Dovecote, Breakspear House, Breakspear Road North, Harefield, Hillingdon, London: tree-ring analysis of timbers. 9 samples represented by site sequence HFDCSQ01 which spans the period AD 1695-1769 Reference: Arnold, A J & Howard, R E. 2011. The Dovecote, Breakspear House, Breakspear Road North, Harefield, Hillingdon, London: tree-ring analysis of timbers. EH Research Department Report 37/2011 Historic England website, Research results: https://research.historicengland.org.uk/redirect.aspx?id=5979|The%20Dovecote,%20Breakspear%20House,%20Breakspear%20House,%20Breakspear%20Road%20North,%20Harefield,%20Hillingdon,%20London:%20Tree-Ring%20Analysis%20of%20Timbers COFECHA output: Chronology file name : BRIT083.CRN Measurement file name : BRIT083.RWL Date checked : 15NOV19 Checked by : B. Bauer Beginning year : 1695 Ending year : 1769 Principal investigators: Alison J. Arnold Robert E. Howard Site name : Breakspear House Site location : UK Species information : QUSP OAK Latitude : 5136 Longitude : -00028 Elevation : M Series intercorrelation: 0.756 Avg mean sensitivity : 0.260 Avg standard deviation : 0.577 Avg autocorrelation : 0.564 Number dated series : 18 Segment length tested : 50 Number problem segments: 0 Pct problem segments : 0.00 PART 5: CORRELATION OF SERIES BY SEGMENTS: Breakspear House 11:17 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 1675 1700 1725 1724 1749 1774 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 HFDC01A 1695 1769 .86 .85 .82 2 HFDC01B 1695 1769 .87 .85 .82 3 HFDC02A 1707 1769 .69 .71 4 HFDC02B 1707 1769 .74 .74 5 HFDC03A 1702 1764 .80 .81 6 HFDC03B 1702 1764 .78 .80 7 HFDC04A 1705 1769 .69 .58 8 HFDC04B 1705 1769 .70 .59 9 HFDC06A 1704 1769 .67 .69 10 HFDC06B 1704 1769 .71 .73 11 HFDC07A 1704 1769 .82 .70 12 HFDC07B 1704 1769 .84 .72 13 HFDC08A 1702 1764 .80 .79 14 HFDC08B 1702 1764 .82 .79 15 HFDC09A 1702 1769 .83 .77 16 HFDC09B 1702 1769 .80 .78 17 HFDC10A 1704 1769 .79 .77 18 HFDC10B 1704 1769 .76 .73 Av segment correlation .86 .78 .74 PART 7: DESCRIPTIVE STATISTICS: Breakspear House 11:17 Fri 15 Nov 2019 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 HFDC01A 1695 1769 75 3 0 .846 1.31 3.89 .727 .726 .268 2.88 .570 .071 1 2 HFDC01B 1695 1769 75 3 0 .848 1.32 3.82 .716 .724 .265 2.81 .500 .044 1 3 HFDC02A 1707 1769 63 2 0 .679 1.71 3.10 .584 .631 .233 2.61 .576 -.043 2 4 HFDC02B 1707 1769 63 2 0 .700 1.71 3.17 .589 .639 .236 2.71 .541 .025 1 5 HFDC03A 1702 1764 63 2 0 .755 1.44 2.43 .392 .551 .227 2.70 .575 .098 1 6 HFDC03B 1702 1764 63 2 0 .740 1.43 2.31 .384 .573 .214 2.62 .496 .075 1 7 HFDC04A 1705 1769 65 2 0 .646 1.34 3.21 .619 .534 .346 2.78 .629 -.012 1 8 HFDC04B 1705 1769 65 2 0 .653 1.34 3.29 .625 .479 .364 2.71 .576 .010 1 9 HFDC06A 1704 1769 66 2 0 .705 1.49 3.87 .804 .607 .306 2.75 .574 -.019 2 10 HFDC06B 1704 1769 66 2 0 .752 1.49 3.70 .790 .605 .311 2.75 .605 -.015 2 11 HFDC07A 1704 1769 66 2 0 .752 1.39 2.82 .522 .667 .248 2.50 .510 -.005 3 12 HFDC07B 1704 1769 66 2 0 .754 1.39 2.79 .518 .705 .236 2.56 .518 -.017 3 13 HFDC08A 1702 1764 63 2 0 .792 1.69 2.84 .438 .423 .216 2.73 .569 .021 1 14 HFDC08B 1702 1764 63 2 0 .792 1.68 2.78 .436 .403 .221 2.66 .492 -.025 1 15 HFDC09A 1702 1769 68 2 0 .815 1.60 3.40 .524 .557 .258 2.87 .565 .043 1 16 HFDC09B 1702 1769 68 2 0 .805 1.60 3.44 .523 .533 .257 2.79 .542 .041 1 17 HFDC10A 1704 1769 66 2 0 .796 2.14 3.40 .562 .399 .225 2.79 .632 -.049 1 18 HFDC10B 1704 1769 66 2 0 .750 2.14 3.46 .573 .339 .238 2.81 .644 -.047 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 1190 38 0 .756 1.56 3.89 .577 .564 .260 2.88 .562 .011