Nottaway River, Virginia - VA025 Additional Site Information D.W. Stahle and M.K. Cleaveland Purpose of Collection: Climatology Detrend method: Measurement types: Total ring width, Earlywood width, Latewood width (measured optically). 1st Detrending method: Negative exponential; if cannot be fitted, then fit a regression line of any slope. 2nd Detrending method: If exp. is fitted, then a cubic spline with half power cutoff equal to series length is fitted; if the exp. cannot be fitted and a regression line is, then a spline with half power cutoff equal to 67% of the series length is fitted; In no case is a spline with half power cutoff less than 100 years fitted. Location of core material: Stored in U. of Arkansas Tree-Ring Lab; Part of the U. of Arkansas Museum collections, Accession No. 83-158 Publication citation: Stahle, D.W., Cleaveland, M.K., Blanton, D.B., Therrell, M.D. and Gay, D.A. 1998. The Lost Colony and Jamestown droughts. Science 280: 564-567. COFECHA output: Chronology file name : VA025.CRN Measurement file name : VA025.RWL Date checked : 07APR05 Checked by : H. ADAMS AND J. LUKAS Beginning year : 1171 Ending year : 1984 Principal investigators: DAVID W. STAHLE MALCOLM K. CLEAVELAND Site name : NOTTOWAY RIVER Site location : VIRGINIA Species information : TADI BALDCYPRESS Latitude : 3647 Longitude : -07708 Elevation : 5M Series intercorrelation: 0.647 Avg mean sensitivity : 0.585 Avg standard deviation : 0.431 Avg autocorrelation : 0.546 Number dated series : 53 Segment length tested : 50 Number problem segments: 15 Pct problem segments : 2.11 PART 5: CORRELATION OF SERIES BY SEGMENTS: va025.rwl 15:59 Thu 07 Apr 2005 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 1175 1200 1225 1250 1275 1300 1325 1350 1375 1400 1425 1450 1475 1500 1525 1550 1575 1600 1625 1650 1224 1249 1274 1299 1324 1349 1374 1399 1424 1449 1474 1499 1524 1549 1574 1599 1624 1649 1674 1699 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 3 NOT02A 1325 1984 .60 .49 .48 .58 .50 .64 .83 .84 .75 .72 .77 .84 .73 .61 4 NOT02B 1325 1890 .43 .33B .44 .49 .47 .58 .63 .67 .73 .74 .76 .75 .69 .47 5 NOT02C 1375 1691 .57 .68 .52 .66 .73 .72 .68 .73 .79 .76 .66 .54 8 NOT04A 1332 1925 .75 .73 .73 .74 .70 .83 .87 .84 .76 .78 .86 .85 .82 .78 9 NOT04B 1363 1900 .64 .59 .75 .73 .74 .80 .79 .77 .79 .80 .82 .75 .73 10 NOT04C 1463 1800 .74 .73 .79 .81 .79 .82 .83 .81 .74 11 NOT04D 1235 1984 .63 .64 .65 .74 .81 .73 .78 .79 .57 .65 .74 .73 .71 .70 .75 .77 .71 .67 20 NOT08A 1195 1984 .53 .47 .52 .50 .45 .60 .69 .38 .31B .49 .49 .55 .71 .73 .53 .31A .36 .58 .62 .63 21 NOT08B 1208 1562 .44 .31B .35 .40 .47 .65 .41 .27B .52 .55 .45 .62 .67 .73 24 NOT11A 1433 1649 .52 .40 .62 .80 .65 .56 .54 .42 25 NOT11B 1420 1710 .45 .45 .60 .70 .72 .68 .55 .53 .55 .49 .52 26 NOT12A 1469 1674 .74 .72 .64 .56 .72 .74 .64 .59 27 NOT12B 1467 1670 .74 .70 .58 .59 .75 .64 .68 .78 28 NOT13A 1501 1910 .74 .65 .68 .77 .62 .37 .21B 29 NOT13B 1437 1770 .73 .74 .70 .66 .64 .66 .70 .57 .46 .42 31 NOT14A 1190 1874 .77 .77 .81 .81 .78 .75 .72 .65 .64 .44 .48 .62 .50 .62 .56 .48 .76 .79 .67 .71 32 NOT14B 1171 1984 .79 .77 .75 .61 .51 .67 .82 .75 .67 .51 .50 .75 .69 .60 .53 .64 .77 .74 .77 .81 33 NOT14C 1208 1909 .64 .69 .73 .70 .70 .69 .64 .72 .75 .71 .30B .39 .66 .65 .72 .75 .82 .71 .48 34 NOT14D 1225 1460 .71 .70 .54 .64 .83 .69 .70 .57 .48 39 NOT17A 1496 1984 .47 .47 .61 .77 .77 .69 .55 .51 40 NOT17B 1515 1984 .63 .70 .77 .78 .67 .22B .17B 41 NOT18A 1571 1928 .53 .57 .55 .27B .41 42 NOT18B 1610 1984 .64 .65 .54 44 NOT19B 1512 1984 .66 .67 .58 .64 .78 .83 .76 45 NOT21B 1261 1449 .57 .68 .68 .59 .50 .64 .68 46 NOT23A 1240 1448 .47 .44 .53 .74 .74 .52 .57 .53 47 NOT23B 1236 1718 .67 .65 .56 .54 .67 .59 .60 .57 .57 .58 .48 .54 .67 .76 .69 .69 .66 .65 48 NOT24A 1365 1742 .57 .49 .55 .59 .70 .68 .63 .41 .29A .53 .72 .71 .76 49 NOT24B 1390 1776 .33 .42 .51 .75 .79 .69 .65 .75 .79 .79 .83 .71 51 NOT25B 1672 1875 .72 52 NOT26A 1424 1810 .58 .58 .60 .64 .77 .73 .72 .79 .76 .76 .76 53 NOT26B 1424 1871 .40 .41 .60 .66 .73 .59 .59 .82 .84 .79 .76 Av segment correlation .70 .62 .62 .60 .58 .65 .69 .58 .56 .58 .55 .63 .67 .69 .65 .66 .71 .71 .65 .60 PART 5: CORRELATION OF SERIES BY SEGMENTS: va025.rwl 15:59 Thu 07 Apr 2005 Page 6 ------------------------------------------------------------------------------------------------------------------------------------ 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 1750 1775 1800 1825 1850 1875 1900 1925 1950 1724 1749 1774 1799 1824 1849 1874 1899 1924 1949 1974 1999 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 NOT01A 1774 1924 .59 .60 .45 .43 .53 .51 2 NOT01B 1752 1984 .55 .55 .56 .64 .70 .49 .39 .43 .48 3 NOT02A 1325 1984 .73 .69 .51 .47 .48 .59 .68 .66 .57 .53 .66 .67 4 NOT02B 1325 1890 .55 .73 .45 .45 .57 .65 .76 .82 6 NOT03A 1840 1984 .48 .44 .37 .29A .34 .39 7 NOT03B 1859 1984 .53 .34 .31A .57 .57 8 NOT04A 1332 1925 .78 .68 .68 .79 .65 .67 .73 .67 .64 .66 9 NOT04B 1363 1900 .75 .57 .68 .84 .75 .76 .75 .64 .65 10 NOT04C 1463 1800 .77 .68 .64 .69 .70 11 NOT04D 1235 1984 .75 .64 .63 .72 .69 .67 .57 .43 .34B .35 .48 .57 12 NOT05A 1727 1807 .78 .85 .85 13 NOT05B 1760 1941 .75 .65 .57 .63 .77 .83 .74 14 NOT05D 1819 1984 .61 .65 .76 .73 .48 .55 .57 15 NOT05E 1770 1983 .73 .79 .73 .68 .72 .74 .55 .46 .43 16 NOT06A 1731 1984 .57 .71 .63 .76 .76 .64 .67 .65 .57 .62 17 NOT06B 1710 1984 .52 .52 .70 .67 .76 .70 .64 .65 .61 .63 .60 18 NOT07A 1778 1939 .65 .74 .75 .75 .66 .69 19 NOT07B 1795 1930 .77 .76 .73 .70 .68 .73 20 NOT08A 1195 1984 .75 .59 .56 .77 .71 .63 .58 .59 .55 .50 .57 .60 22 NOT10A 1750 1984 .53 .54 .64 .64 .59 .73 .56 .57 .44 23 NOT10B 1773 1882 .62 .60 .70 .64 .57 25 NOT11B 1420 1710 .50 28 NOT13A 1501 1910 .54 .72 .74 .77 .76 .75 .72 .70 .69 29 NOT13B 1437 1770 .59 .67 .72 30 NOT13D 1800 1962 .46 .77 .76 .84 .84 .87 31 NOT14A 1190 1874 .84 .76 .71 .64 .54 .68 .75 32 NOT14B 1171 1984 .79 .79 .78 .77 .74 .73 .72 .64 .53 .59 .53 .44 33 NOT14C 1208 1909 .59 .71 .77 .71 .66 .47 .57 .81 .81 35 NOT15C 1770 1984 .63 .65 .70 .58 .42 .59 .69 .66 .62 36 NOT15D 1720 1984 .81 .78 .74 .67 .62 .50 .56 .69 .62 .62 .61 37 NOT16A 1830 1984 .57 .76 .64 .61 .69 .65 38 NOT16B 1729 1984 .77 .64 .29B .46 .62 .67 .65 .59 .64 .64 39 NOT17A 1496 1984 .64 .70 .81 .81 .74 .69 .70 .59 .51 .75 .82 .75 40 NOT17B 1515 1984 .66 .65 .68 .74 .68 .70 .65 .53 .63 .66 .68 .68 41 NOT18A 1571 1928 .65 .71 .74 .77 .69 .69 .78 .66 .61 .64 42 NOT18B 1610 1984 .69 .82 .73 .65 .64 .80 .73 .64 .73 .68 .67 .56 43 NOT19A 1716 1984 .80 .82 .67 .55 .65 .71 .69 .73 .70 .69 .66 44 NOT19B 1512 1984 .73 .61 .62 .73 .52 .69 .82 .66 .64 .76 .80 .73 47 NOT23B 1236 1718 .77 48 NOT24A 1365 1742 .76 .72 49 NOT24B 1390 1776 .64 .62 .73 .73 50 NOT25A 1730 1910 .64 .68 .74 .71 .68 .56 .49 51 NOT25B 1672 1875 .74 .65 .65 .76 .71 .66 .67 .68 52 NOT26A 1424 1810 .73 .75 .84 .79 .76 53 NOT26B 1424 1871 .71 .68 .82 .84 .76 .78 .67 Av segment correlation .69 .69 .69 .70 .66 .66 .67 .64 .62 .60 .61 .59 PART 7: DESCRIPTIVE STATISTICS: va025.rwl 15:59 Thu 07 Apr 2005 Page 11 ------------------------------------------------------------------------------------------------------------------------------------ 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 NOT01A 1774 1924 151 6 0 .502 1.71 7.15 1.107 .472 .503 2.63 .450 -.037 5 2 NOT01B 1752 1984 233 9 0 .530 1.20 4.35 .842 .547 .572 2.68 .457 -.013 1 3 NOT02A 1325 1984 660 26 0 .650 .47 3.15 .409 .579 .673 2.82 .449 .005 2 4 NOT02B 1325 1890 566 22 1 .628 .49 4.24 .479 .503 .697 2.97 .387 .015 1 5 NOT02C 1375 1691 317 12 0 .644 .63 3.96 .497 .537 .610 2.86 .426 -.023 1 6 NOT03A 1840 1984 145 6 1 .410 2.18 7.49 1.518 .733 .362 2.49 .402 -.004 1 7 NOT03B 1859 1984 126 5 1 .482 1.68 5.39 1.062 .753 .300 2.66 .411 -.055 1 8 NOT04A 1332 1925 594 24 0 .752 .42 1.33 .232 .517 .497 2.69 .352 .009 1 9 NOT04B 1363 1900 538 22 0 .744 .36 1.15 .212 .332 .575 2.85 .462 .051 2 10 NOT04C 1463 1800 338 14 0 .744 .31 .95 .188 .288 .608 2.70 .397 .026 4 11 NOT04D 1235 1984 750 30 1 .665 .31 1.17 .220 .518 .648 2.69 .359 -.010 1 12 NOT05A 1727 1807 81 3 0 .789 1.35 3.93 .724 .278 .535 2.61 .506 -.030 1 13 NOT05B 1760 1941 182 7 0 .698 .90 3.37 .593 .292 .533 2.69 .469 -.006 2 14 NOT05D 1819 1984 166 7 0 .610 .45 1.57 .318 .558 .593 2.67 .498 -.002 2 15 NOT05E 1770 1983 214 9 0 .654 .48 2.75 .438 .386 .654 2.83 .447 .000 1 16 NOT06A 1731 1984 254 10 0 .655 1.03 6.78 .930 .679 .442 2.75 .496 .026 2 17 NOT06B 1710 1984 275 11 0 .628 1.13 7.51 1.010 .627 .422 2.91 .510 .019 2 18 NOT07A 1778 1939 162 6 0 .697 1.20 4.37 .888 .440 .607 2.61 .365 .000 3 19 NOT07B 1795 1930 136 6 0 .725 1.19 4.91 1.024 .482 .609 2.86 .516 -.002 3 20 NOT08A 1195 1984 790 32 2 .551 .42 4.42 .542 .832 .573 2.71 .428 .003 1 21 NOT08B 1208 1562 355 14 2 .489 .57 3.22 .535 .752 .488 2.61 .341 -.026 1 22 NOT10A 1750 1984 235 9 0 .571 .59 2.76 .441 .466 .640 2.86 .470 -.006 1 23 NOT10B 1773 1882 110 5 0 .598 .98 3.22 .536 .601 .365 2.81 .494 -.008 1 24 NOT11A 1433 1649 217 8 0 .563 .74 2.55 .397 .590 .437 2.84 .465 -.002 2 25 NOT11B 1420 1710 291 12 0 .567 .64 3.61 .521 .457 .522 2.78 .402 -.036 4 26 NOT12A 1469 1674 206 8 0 .672 .41 1.60 .290 .649 .592 2.69 .411 -.018 1 27 NOT12B 1467 1670 204 8 0 .702 .32 1.10 .226 .540 .641 2.78 .547 -.016 1 28 NOT13A 1501 1910 410 16 1 .653 .44 2.39 .354 .533 .626 2.84 .459 .037 1 29 NOT13B 1437 1770 334 13 0 .632 .71 2.88 .527 .609 .561 2.79 .407 .012 3 30 NOT13D 1800 1962 163 6 0 .687 .37 1.46 .267 .453 .666 2.88 .491 .029 1 31 NOT14A 1190 1874 685 27 0 .671 .33 4.57 .458 .783 .758 2.98 .491 .003 1 32 NOT14B 1171 1984 814 32 0 .690 .34 3.51 .342 .542 .825 2.83 .510 .020 1 33 NOT14C 1208 1909 702 28 1 .669 .32 1.72 .260 .410 .723 2.89 .435 .019 1 34 NOT14D 1225 1460 236 9 0 .677 .40 1.84 .305 .391 .694 2.95 .499 -.003 1 35 NOT15C 1770 1984 215 9 0 .601 .36 2.38 .278 .341 .557 3.03 .498 .001 2 36 NOT15D 1720 1984 265 11 0 .651 .34 1.56 .224 .472 .565 2.96 .483 -.045 2 37 NOT16A 1830 1984 155 6 0 .620 .56 1.99 .397 .718 .475 2.73 .503 .009 2 38 NOT16B 1729 1984 256 10 1 .599 .50 2.11 .354 .619 .564 2.64 .425 .007 2 39 NOT17A 1496 1984 489 20 0 .661 .70 2.85 .501 .603 .550 2.75 .336 .007 2 40 NOT17B 1515 1984 470 19 2 .625 .53 2.70 .426 .641 .600 2.82 .434 -.032 1 41 NOT18A 1571 1928 358 15 1 .624 .42 1.61 .316 .433 .766 2.79 .500 .020 2 42 NOT18B 1610 1984 375 15 0 .671 .47 4.41 .364 .273 .628 2.97 .362 .010 1 43 NOT19A 1716 1984 269 11 0 .695 .43 1.85 .276 .423 .580 2.64 .389 .029 1 44 NOT19B 1512 1984 473 19 0 .691 .49 2.82 .296 .567 .482 2.67 .415 .021 9 45 NOT21B 1261 1449 189 7 0 .612 .75 3.27 .623 .667 .509 2.81 .490 -.008 1 46 NOT23A 1240 1448 209 8 0 .576 .48 2.73 .322 .475 .482 2.97 .452 -.049 1 47 NOT23B 1236 1718 483 19 0 .625 .43 1.89 .245 .475 .493 2.64 .337 .004 1 48 NOT24A 1365 1742 378 15 1 .614 .54 3.41 .503 .878 .456 2.59 .432 .024 1 PART 7: DESCRIPTIVE STATISTICS: va025.rwl 15:59 Thu 07 Apr 2005 Page 12 ------------------------------------------------------------------------------------------------------------------------------------ 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 () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 NOT24B 1390 1776 387 16 0 .685 .52 1.50 .292 .579 .476 2.61 .452 .007 4 50 NOT25A 1730 1910 181 7 0 .632 .98 3.04 .495 .217 .488 2.85 .538 -.009 2 51 NOT25B 1672 1875 204 9 0 .684 .91 3.36 .520 .279 .516 2.89 .510 .038 2 52 NOT26A 1424 1810 387 16 0 .720 .56 3.86 .460 .745 .463 2.70 .431 .018 1 53 NOT26B 1424 1871 448 18 0 .693 .72 3.64 .400 .534 .416 2.78 .406 -.005 2 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 17831 712 15 .647 .56 7.51 .431 .546 .585 3.03 .435 .004