North Aegean May-June Precipitation Reconstruction ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: North Aegean May-June Precipitation Reconstruction LAST UPDATE: 2/2007 (Original receipt by WDC Paleo) CONTRIBUTORS: C.B. Griggs, A.T. DeGaetano, P.I. Kuniholm, and M.W. Newton, Dendrochronology Laboratory, Cornell University IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2007-015 SUGGESTED DATA CITATION: Griggs, C.B., et al., 2007. North Aegean May-June Precipitation Reconstruction. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2007-015. NOAA/NCDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCES: Griggs, C.B., A.T. DeGaetano, P.I. Kuniholm, and M.W. Newton. 2007. A regional high-frequency reconstruction of May-June precipitation in the north Aegean from oak tree-rings, A.D. 1089-1989. International Journal of Climatology, Vol. 27, Issue 8, pp. 1075 - 1089, 30 June 2007. Griggs, C.B. 2006. Tale of Two: Reconstructing Climate from Tree-rings of the North Aegean, A.D. 1089-1989, and Late Pleistocene to Present: Dendrochronology in Upstate New York. PhD Dissertation, Cornell University, pp 1-47. ABSTRACT (Griggs et al. 2007): May-June precipitation is the primary limiting factor in annual tree- ring growth of the oaks of northeastern Greece and northwestern Turkey (39-42°N, 22-37°E). In a regional tree-ring chronology of historic building and modern forest samples, the May-June precipitation explains at least 40% of the variance for 1900-1985, and is reconstructed here from A.D. 1089-1989. The reconstruction is compared to three other precipitation reconstructions for Turkey. The mean temperature of May and June is also a growth-limiting factor owing to its effect on the availability of precipitation to the trees, but is more difficult to calibrate and reconstruct accurately owing to the trees' indirect response and the low number of long-temperature records available for the interior of northwestern Turkey. An analysis of the various methods of manipulating oak tree-ring data for regional climate reconstruction shows that removing all but the high-frequency variability plus normalizing the oak data sets before combining them into a master chronology are optimal techniques for a reasonable precipitation reconstruction of the entire area over the instrumental period. However, these methods do remove the low-frequency signal and dampen some of the evidence of local extremes in May-June precipitation; these issues are discussed here and will be addressed in future research. GEOGRAPHIC REGION: North Aegean, NE Greece and NW Turkey PERIOD OF RECORD: 1089-1989 AD FUNDING SOURCES: National Science Foundation (USA) grants BCS-0314282 and SBR-9905389, the Malcolm H. Weiner Foundation, and Patrons of the Aegean Dendrochronology Project. DESCRIPTION: The data set is a high-frequency 901-year May-June precipitation reconstruction for a large region with significant differences in subregional precipitation variability. The reconstructed values for each year, including particularly dry and wet years, are of equal precision. The oak tree-ring data used for the reconstruction includes 511 samples from 7 forest and 49 historic site tree-ring chronologies across the region. The region is on the southern boundaries of the included oak species' geographic ranges. Methods included the testing and use of standardized tree-ring sample data and cubic spline curves for detrending; regression analyses, adjustment of temporal variance, and other standard dendroclimatic methods (Cook and Kairiukstis 1989). All are discussed in the references. 20th century climate data from the region's meteorological stations were downloaded from: http://www.ncdc.noaa.gov/oa/ncdc.html and gridded precipitation data from the Climate Research Unit at: http://www.cru.uea.ac.uk/. Data generated: January 2006. Latitude: 39 to 42N Longitude: 22 to 37E Elevation: 0 to 1200m DATA: Year May-June reconstructed precipitation (mm) for NE Greece & NW Turkey 1089 74.15 1090 81.11 1091 81.28 1092 78.31 1093 77.32 1094 56.97 1095 84.94 1096 129.35 1097 70.61 1098 48.20 1099 53.91 1100 100.12 1101 84.29 1102 43.95 1103 65.98 1104 36.92 1105 68.16 1106 112.15 1107 114.24 1108 54.32 1109 101.15 1110 38.81 1111 64.28 1112 110.33 1113 96.42 1114 77.98 1115 84.55 1116 67.81 1117 76.30 1118 74.11 1119 94.95 1120 58.68 1121 26.53 1122 94.54 1123 55.36 1124 45.96 1125 101.58 1126 142.92 1127 98.44 1128 82.84 1129 71.08 1130 40.55 1131 72.71 1132 88.90 1133 68.93 1134 94.27 1135 79.43 1136 50.13 1137 88.29 1138 89.17 1139 75.69 1140 36.01 1141 94.00 1142 136.51 1143 89.96 1144 101.53 1145 62.98 1146 57.96 1147 22.84 1148 115.74 1149 88.46 1150 65.37 1151 74.47 1152 71.36 1153 58.35 1154 108.91 1155 81.11 1156 75.57 1157 71.91 1158 89.30 1159 92.24 1160 51.43 1161 55.46 1162 98.77 1163 77.69 1164 63.12 1165 91.34 1166 79.98 1167 71.48 1168 87.67 1169 64.69 1170 91.08 1171 59.79 1172 50.37 1173 94.09 1174 83.10 1175 97.01 1176 44.42 1177 70.14 1178 86.85 1179 115.54 1180 98.21 1181 62.38 1182 82.42 1183 38.75 1184 57.82 1185 61.21 1186 64.51 1187 128.60 1188 73.55 1189 61.87 1190 61.06 1191 74.55 1192 129.24 1193 80.56 1194 60.55 1195 68.20 1196 69.17 1197 47.62 1198 50.53 1199 66.82 1200 89.48 1201 82.88 1202 91.34 1203 104.14 1204 33.94 1205 48.66 1206 91.70 1207 83.99 1208 66.17 1209 103.90 1210 73.59 1211 77.90 1212 104.14 1213 52.68 1214 90.28 1215 96.00 1216 45.55 1217 50.30 1218 88.46 1219 116.55 1220 51.47 1221 64.06 1222 64.28 1223 69.99 1224 93.23 1225 95.82 1226 65.64 1227 67.43 1228 27.99 1229 42.29 1230 106.97 1231 138.04 1232 44.70 1233 98.07 1234 107.11 1235 59.00 1236 98.58 1237 28.39 1238 86.58 1239 85.98 1240 73.67 1241 78.39 1242 75.20 1243 79.43 1244 84.29 1245 47.10 1246 77.94 1247 82.04 1248 63.91 1249 134.55 1250 72.27 1251 59.18 1252 97.06 1253 41.06 1254 88.68 1255 73.87 1256 43.61 1257 75.73 1258 100.92 1259 88.16 1260 94.18 1261 83.74 1262 37.34 1263 67.20 1264 94.32 1265 90.01 1266 93.27 1267 76.26 1268 39.66 1269 79.72 1270 78.06 1271 83.44 1272 110.38 1273 80.44 1274 70.18 1275 57.68 1276 76.50 1277 65.30 1278 76.34 1279 89.52 1280 78.56 1281 79.43 1282 76.58 1283 99.37 1284 47.20 1285 60.84 1286 105.67 1287 79.56 1288 57.96 1289 82.88 1290 105.33 1291 76.30 1292 84.85 1293 58.75 1294 79.52 1295 79.22 1296 51.87 1297 86.06 1298 90.32 1299 109.74 1300 70.57 1301 67.47 1302 115.59 1303 51.90 1304 33.13 1305 60.08 1306 76.95 1307 106.00 1308 90.10 1309 53.09 1310 104.56 1311 101.58 1312 39.93 1313 86.89 1314 88.07 1315 86.28 1316 63.72 1317 67.62 1318 71.99 1319 86.93 1320 65.45 1321 106.44 1322 89.83 1323 61.61 1324 53.91 1325 76.26 1326 75.16 1327 64.09 1328 61.61 1329 107.84 1330 107.21 1331 64.66 1332 112.95 1333 27.99 1334 61.69 1335 97.01 1336 86.02 1337 60.19 1338 73.55 1339 70.38 1340 88.38 1341 97.01 1342 89.48 1343 80.23 1344 56.48 1345 88.33 1346 53.22 1347 63.31 1348 102.90 1349 73.51 1350 81.15 1351 65.60 1352 81.28 1353 78.98 1354 84.29 1355 94.13 1356 83.95 1357 70.22 1358 57.71 1359 71.28 1360 96.32 1361 68.97 1362 61.98 1363 55.46 1364 70.57 1365 85.93 1366 51.94 1367 86.24 1368 91.43 1369 78.98 1370 75.77 1371 46.59 1372 80.39 1373 85.50 1374 106.15 1375 74.67 1376 63.50 1377 69.71 1378 62.79 1379 60.19 1380 68.24 1381 93.27 1382 90.50 1383 92.69 1384 58.82 1385 59.43 1386 82.88 1387 84.08 1388 58.78 1389 92.06 1390 84.60 1391 58.89 1392 84.08 1393 84.12 1394 102.80 1395 72.23 1396 43.70 1397 69.52 1398 92.24 1399 122.73 1400 68.28 1401 42.87 1402 73.23 1403 69.48 1404 102.33 1405 58.14 1406 54.70 1407 63.72 1408 70.77 1409 123.77 1410 61.50 1411 91.70 1412 73.51 1413 64.32 1414 84.81 1415 67.39 1416 65.03 1417 97.01 1418 117.21 1419 109.40 1420 46.56 1421 41.12 1422 50.40 1423 122.01 1424 64.17 1425 90.94 1426 48.43 1427 61.39 1428 112.25 1429 63.80 1430 68.28 1431 89.88 1432 90.01 1433 85.67 1434 73.23 1435 92.96 1436 103.66 1437 72.91 1438 69.71 1439 45.26 1440 41.03 1441 77.12 1442 88.46 1443 128.66 1444 66.05 1445 57.96 1446 46.72 1447 50.67 1448 82.84 1449 94.95 1450 98.44 1451 87.76 1452 90.01 1453 96.87 1454 103.23 1455 34.82 1456 59.86 1457 54.18 1458 58.18 1459 118.73 1460 121.03 1461 69.63 1462 70.10 1463 52.58 1464 72.39 1465 86.63 1466 132.88 1467 82.84 1468 56.27 1469 51.74 1470 73.79 1471 77.45 1472 69.59 1473 61.87 1474 70.57 1475 70.77 1476 97.70 1477 94.27 1478 109.40 1479 73.87 1480 66.70 1481 62.09 1482 58.28 1483 58.21 1484 73.31 1485 101.48 1486 85.50 1487 96.74 1488 69.09 1489 62.75 1490 70.06 1491 65.90 1492 99.51 1493 71.01 1494 98.82 1495 66.24 1496 66.66 1497 68.82 1498 107.06 1499 72.71 1500 62.16 1501 43.00 1502 94.95 1503 111.02 1504 100.50 1505 42.08 1506 60.08 1507 90.81 1508 81.53 1509 67.97 1510 87.41 1511 78.19 1512 59.47 1513 66.36 1514 90.36 1515 80.60 1516 76.79 1517 79.35 1518 78.60 1519 80.27 1520 59.11 1521 56.41 1522 40.46 1523 114.94 1524 82.33 1525 134.23 1526 105.28 1527 88.07 1528 45.86 1529 59.39 1530 76.05 1531 37.37 1532 81.32 1533 110.48 1534 49.18 1535 119.14 1536 69.71 1537 81.78 1538 93.59 1539 56.02 1540 74.96 1541 60.30 1542 100.17 1543 97.61 1544 37.89 1545 63.05 1546 113.34 1547 109.50 1548 60.73 1549 58.46 1550 57.01 1551 60.59 1552 77.78 1553 79.31 1554 94.77 1555 58.07 1556 107.21 1557 78.73 1558 77.12 1559 83.57 1560 58.50 1561 64.36 1562 82.76 1563 62.90 1564 88.82 1565 58.78 1566 129.93 1567 72.71 1568 56.79 1569 122.22 1570 90.72 1571 40.52 1572 57.89 1573 48.88 1574 106.15 1575 81.44 1576 87.67 1577 91.93 1578 78.60 1579 73.19 1580 60.99 1581 46.75 1582 125.81 1583 98.03 1584 98.35 1585 29.77 1586 65.00 1587 92.33 1588 62.35 1589 84.94 1590 74.15 1591 48.92 1592 127.49 1593 69.32 1594 116.35 1595 52.14 1596 54.87 1597 89.12 1598 93.05 1599 68.55 1600 39.90 1601 101.39 1602 66.32 1603 73.31 1604 98.26 1605 124.40 1606 61.14 1607 50.63 1608 51.67 1609 68.35 1610 94.18 1611 85.41 1612 83.74 1613 90.28 1614 89.74 1615 44.20 1616 103.71 1617 54.77 1618 53.67 1619 86.24 1620 82.80 1621 79.77 1622 70.49 1623 64.47 1624 104.85 1625 89.26 1626 75.40 1627 52.48 1628 66.59 1629 122.79 1630 60.19 1631 101.86 1632 80.56 1633 55.46 1634 60.92 1635 84.04 1636 76.99 1637 49.47 1638 42.97 1639 84.38 1640 64.21 1641 124.40 1642 103.61 1643 105.43 1644 68.39 1645 52.21 1646 101.29 1647 73.43 1648 63.83 1649 59.07 1650 33.53 1651 60.23 1652 130.46 1653 80.94 1654 61.39 1655 83.52 1656 96.60 1657 134.99 1658 75.24 1659 107.60 1660 17.48 1661 69.09 1662 70.30 1663 40.58 1664 51.43 1665 53.53 1666 66.93 1667 116.35 1668 74.84 1669 103.18 1670 92.24 1671 62.20 1672 72.59 1673 71.76 1674 91.75 1675 79.93 1676 46.34 1677 59.07 1678 131.86 1679 70.06 1680 46.12 1681 76.14 1682 86.15 1683 78.89 1684 58.00 1685 123.98 1686 48.20 1687 32.91 1688 56.62 1689 142.03 1690 89.61 1691 79.47 1692 72.67 1693 70.34 1694 83.48 1695 99.89 1696 52.07 1697 68.89 1698 84.60 1699 57.11 1700 96.00 1701 53.22 1702 79.22 1703 52.78 1704 96.55 1705 107.40 1706 82.63 1707 63.72 1708 34.40 1709 90.19 1710 117.16 1711 67.16 1712 107.89 1713 65.03 1714 91.30 1715 52.14 1716 36.77 1717 80.56 1718 64.32 1719 73.83 1720 87.67 1721 104.56 1722 85.33 1723 90.94 1724 92.82 1725 60.08 1726 59.72 1727 61.91 1728 42.66 1729 106.92 1730 98.31 1731 114.84 1732 55.22 1733 48.82 1734 60.15 1735 85.98 1736 89.61 1737 89.30 1738 69.56 1739 80.27 1740 73.19 1741 66.13 1742 70.38 1743 73.79 1744 89.96 1745 105.19 1746 48.46 1747 84.68 1748 84.94 1749 82.67 1750 45.29 1751 69.79 1752 65.30 1753 113.79 1754 72.79 1755 101.15 1756 76.50 1757 40.43 1758 76.34 1759 57.29 1760 89.43 1761 70.30 1762 101.58 1763 100.59 1764 50.67 1765 63.61 1766 99.09 1767 93.23 1768 97.20 1769 58.39 1770 60.70 1771 72.43 1772 61.47 1773 78.81 1774 85.46 1775 71.68 1776 72.91 1777 68.82 1778 95.00 1779 66.05 1780 68.28 1781 89.79 1782 43.43 1783 117.81 1784 87.37 1785 61.21 1786 86.41 1787 110.13 1788 32.38 1789 93.37 1790 77.28 1791 71.80 1792 74.35 1793 79.77 1794 32.65 1795 133.79 1796 100.03 1797 69.40 1798 73.03 1799 81.19 1800 83.78 1801 51.84 1802 50.93 1803 54.49 1804 113.94 1805 122.53 1806 57.82 1807 60.55 1808 62.90 1809 60.59 1810 58.46 1811 116.75 1812 95.27 1813 88.73 1814 79.60 1815 55.12 1816 109.59 1817 105.28 1818 53.98 1819 72.19 1820 59.94 1821 82.46 1822 107.50 1823 41.51 1824 57.54 1825 67.20 1826 78.56 1827 88.46 1828 79.64 1829 106.15 1830 64.73 1831 78.73 1832 77.45 1833 67.66 1834 42.72 1835 102.71 1836 55.95 1837 101.58 1838 70.46 1839 93.05 1840 60.19 1841 104.14 1842 65.52 1843 69.36 1844 76.30 1845 63.35 1846 50.07 1847 88.33 1848 101.01 1849 91.70 1850 109.06 1851 38.20 1852 70.46 1853 60.19 1854 100.54 1855 54.18 1856 68.47 1857 93.05 1858 115.04 1859 93.73 1860 103.99 1861 55.08 1862 46.46 1863 64.66 1864 60.73 1865 91.39 1866 46.43 1867 56.90 1868 60.12 1869 64.96 1870 85.24 1871 107.84 1872 92.37 1873 96.09 1874 63.24 1875 56.06 1876 78.93 1877 98.68 1878 75.36 1879 58.57 1880 68.47 1881 121.96 1882 71.36 1883 72.35 1884 88.24 1885 83.48 1886 90.05 1887 38.87 1888 71.95 1889 123.20 1890 54.53 1891 67.62 1892 67.66 1893 61.76 1894 54.67 1895 48.82 1896 81.53 1897 130.52 1898 72.43 1899 51.60 1900 87.41 1901 99.47 1902 76.95 1903 108.86 1904 50.60 1905 86.50 1906 93.82 1907 69.71 1908 63.91 1909 58.78 1910 94.04 1911 99.42 1912 51.90 1913 87.50 1914 110.28 1915 44.70 1916 54.08 1917 84.21 1918 47.78 1919 72.15 1920 76.95 1921 94.59 1922 97.57 1923 93.14 1924 118.07 1925 101.48 1926 75.53 1927 47.07 1928 38.55 1929 52.38 1930 47.68 1931 100.12 1932 85.33 1933 94.82 1934 64.73 1935 42.90 1936 134.61 1937 88.24 1938 67.01 1939 70.30 1940 106.24 1941 76.46 1942 69.01 1943 114.64 1944 78.60 1945 53.91 1946 70.30 1947 27.84 1948 90.45 1949 77.53 1950 77.94 1951 68.70 1952 83.05 1953 93.37 1954 118.78 1955 40.52 1956 106.49 1957 53.26 1958 65.30 1959 97.57 1960 92.69 1961 84.38 1962 50.60 1963 78.60 1964 83.14 1965 59.72 1966 80.14 1967 88.73 1968 63.94 1969 59.07 1970 89.35 1971 96.97 1972 78.68 1973 73.91 1974 70.30 1975 79.14 1976 82.63 1977 76.87 1978 83.10 1979 81.87 1980 84.34 1981 60.23 1982 63.76 1983 79.52 1984 65.86 1985 71.20 1986 78.19 1987 97.70 1988 67.51 1989 55.64