# Low-frequency Temperature Variations from a Northern Tree Ring Density Network: Western North America # http://www.ncdc.noaa.gov/paleo/metadata/noaa-recon-6274.html # http://www.ncdc.noaa.gov/paleo/pubs/briffa2001/briffa2001.html # Temperature Anomaly # April # September # degrees C # Annual # 1961 AD - 1990 AD # 1400 AD # 1995 AD # Briffa, K.R., T.J. Osborn, F.H. Schweingruber, I.C. Harris, P.D. Jones, S.G. Shiyatov, and E.A. Vaganov. # Briffa, K.R., T.J. Osborn, F.H. Schweingruber, I.C. Harris, P.D. Jones, S.G. Shiyatov, and E.A. Vaganov. 2001. Low-frequency Temperature Variations from a Northern Tree Ring Density Network. Journal of Geophysical Research 106:2929-2941. # # # # # # Based on tree-ring density, processed using the age-band decomposition (ABD) standardisation procedure. # # # March 2009, v 1.0.0 # # YearAD Anomaly 1995 NaN 1994 NaN 1993 NaN 1992 NaN 1991 NaN 1990 NaN 1989 NaN 1988 NaN 1987 NaN 1986 NaN 1985 NaN 1984 NaN 1983 0.08 1982 -0.44 1981 -0.11 1980 -0.4 1979 -0.09 1978 -0.37 1977 -0.12 1976 -0.33 1975 -0.61 1974 -0.3 1973 0.09 1972 0.07 1971 -0.19 1970 0.09 1969 0.58 1968 -1.02 1967 -0.27 1966 0.24 1965 -0.82 1964 -1 1963 0.27 1962 0.21 1961 -0.07 1960 0.45 1959 -0.27 1958 0.57 1957 -0.4 1956 -0.01 1955 -0.25 1954 -0.57 1953 -0.09 1952 0.22 1951 -0.19 1950 -0.04 1949 0.56 1948 -0.13 1947 0.17 1946 0.27 1945 0.11 1944 0.15 1943 0.02 1942 0.27 1941 -0.4 1940 0.47 1939 0.46 1938 0.37 1937 0.03 1936 0.28 1935 -0.14 1934 0.39 1933 -0.15 1932 0.18 1931 0.34 1930 0.2 1929 -0.1 1928 0.21 1927 -0.79 1926 0.42 1925 -0.31 1924 0.32 1923 -0.5 1922 0.22 1921 -0.1 1920 -0.82 1919 0.33 1918 -0.26 1917 -0.25 1916 -0.41 1915 -0.05 1914 0.32 1913 -0.03 1912 -0.67 1911 -0.19 1910 0.66 1909 -0.24 1908 -0.25 1907 -0.62 1906 -0.08 1905 -0.01 1904 0.12 1903 -0.01 1902 0.18 1901 0.09 1900 0.04 1899 -1.04 1898 0.39 1897 0.29 1896 -0.24 1895 -0.11 1894 0.05 1893 -1 1892 -0.13 1891 0.03 1890 -0.18 1889 0.43 1888 0.15 1887 -0.04 1886 0.05 1885 -0.02 1884 -1.06 1883 0.08 1882 -0.37 1881 -0.11 1880 -1.17 1879 0.03 1878 0.25 1877 -0.33 1876 -0.8 1875 -0.42 1874 -0.35 1873 -0.25 1872 -0.39 1871 0.29 1870 -0.11 1869 0.24 1868 -0.34 1867 -0.21 1866 -0.95 1865 -0.32 1864 0.31 1863 0.53 1862 -0.58 1861 -0.02 1860 -0.18 1859 -0.15 1858 -0.19 1857 0.29 1856 0.3 1855 0.19 1854 -0.18 1853 0.36 1852 0.17 1851 -0.27 1850 0.02 1849 -0.33 1848 -0.4 1847 -0.06 1846 0.08 1845 -0.31 1844 -0.04 1843 -0.12 1842 -0.31 1841 -0.09 1840 -0.33 1839 -0.22 1838 -0.36 1837 -0.99 1836 -0.13 1835 -0.47 1834 0.52 1833 -0.38 1832 -0.28 1831 -0.33 1830 0.15 1829 0.57 1828 -0.57 1827 -0.4 1826 -0.09 1825 0.22 1824 -0.3 1823 -0.25 1822 -0.08 1821 -0.32 1820 -0.54 1819 -0.8 1818 -0.46 1817 -0.18 1816 -0.07 1815 -0.26 1814 0.11 1813 -0.53 1812 0.15 1811 -0.81 1810 -1.13 1809 -0.94 1808 0.03 1807 0.05 1806 -0.29 1805 -0.36 1804 0.2 1803 0.09 1802 0.33 1801 -1.13 1800 0.19 1799 0.23 1798 0.41 1797 -0.41 1796 0.31 1795 0.09 1794 0.43 1793 0.03 1792 0.35 1791 0.19 1790 -0.55 1789 -0.24 1788 0.2 1787 -0.69 1786 -0.04 1785 -0.03 1784 -0.06 1783 0.13 1782 -0.37 1781 -0.07 1780 0.36 1779 -0.83 1778 -0.08 1777 -0.12 1776 0.41 1775 -0.13 1774 0.41 1773 0.03 1772 0.22 1771 0.07 1770 0.19 1769 -0.17 1768 0.05 1767 -0.26 1766 -0.59 1765 0.14 1764 -0.38 1763 -0.79 1762 -0.3 1761 -0.68 1760 -0.72 1759 0.31 1758 -0.13 1757 -0.05 1756 0.27 1755 -0.34 1754 -0.6 1753 -0.02 1752 -0.32 1751 0.14 1750 -0.34 1749 -0.61 1748 -0.25 1747 0.23 1746 -0.71 1745 -0.27 1744 -0.14 1743 0.03 1742 -0.4 1741 0.55 1740 -0.47 1739 0.16 1738 -0.54 1737 0.18 1736 -0.64 1735 0.18 1734 0.03 1733 0.01 1732 -0.69 1731 -0.3 1730 -0.41 1729 -0.19 1728 0.49 1727 -0.69 1726 -0.59 1725 -1.51 1724 0.2 1723 -0.02 1722 -0.21 1721 0.02 1720 0.08 1719 -0.31 1718 -0.22 1717 -0.18 1716 -0.36 1715 -0.73 1714 -0.69 1713 -0.48 1712 -0.2 1711 -0.23 1710 -0.64 1709 -0.83 1708 -0.13 1707 -0.59 1706 -0.12 1705 -0.28 1704 -0.46 1703 -0.48 1702 -0.95 1701 -1.03 1700 -0.87 1699 -0.87 1698 -1.15 1697 -0.61 1696 -0.95 1695 -0.81 1694 -0.2 1693 -0.05 1692 -0.4 1691 -0.3 1690 -0.06 1689 -0.15 1688 -0.75 1687 -0.37 1686 0.06 1685 -0.66 1684 -0.35 1683 -0.62 1682 -0.87 1681 -0.03 1680 -0.89 1679 -0.56 1678 -1.05 1677 0 1676 -0.53 1675 -0.42 1674 -1.21 1673 -1.36 1672 -0.65 1671 -0.7 1670 -0.68 1669 -1.42 1668 -1.12 1667 -0.47 1666 -0.5 1665 -0.53 1664 0.01 1663 0.17 1662 -0.33 1661 0.24 1660 -0.69 1659 -0.04 1658 -0.01 1657 -0.39 1656 0.11 1655 -0.32 1654 -0.05 1653 0.55 1652 -0.03 1651 0.2 1650 -0.36 1649 0.1 1648 -0.48 1647 0.29 1646 0.13 1645 -0.22 1644 -0.92 1643 -1.05 1642 -0.77 1641 -1.81 1640 -0.87 1639 -0.16 1638 -0.35 1637 -0.3 1636 -0.1 1635 -0.09 1634 -0.11 1633 -0.86 1632 0.32 1631 -0.23 1630 -0.05 1629 -1.19 1628 -1.37 1627 -1.07 1626 -1.53 1625 -0.8 1624 -1.01 1623 -0.51 1622 -0.54 1621 -1.63 1620 -0.37 1619 -0.38 1618 -0.3 1617 -0.55 1616 -0.87 1615 -0.65 1614 -0.42 1613 0.1 1612 -0.98 1611 -0.46 1610 -0.45 1609 -1.13 1608 -0.7 1607 0.01 1606 -0.19 1605 0.06 1604 -0.7 1603 0.03 1602 0.26 1601 -2 1600 0.26 1599 -0.42 1598 0.26 1597 -0.1 1596 -1.38 1595 -0.09 1594 -0.23 1593 -0.37 1592 -0.81 1591 -0.38 1590 -0.95 1589 -1.12 1588 -1.69 1587 -1.86 1586 -0.15 1585 -0.89 1584 -0.37 1583 -0.95 1582 -0.63 1581 -0.78 1580 -0.71 1579 -1.29 1578 -1.35 1577 -1.82 1576 -0.63 1575 -1.04 1574 -1.18 1573 -0.38 1572 -1.19 1571 -1.13 1570 -0.47 1569 -1.32 1568 -0.55 1567 -0.92 1566 -0.86 1565 -0.08 1564 -0.6 1563 -0.58 1562 -0.1 1561 0.2 1560 -0.88 1559 -1.4 1558 -0.21 1557 -0.55 1556 0.06 1555 -0.28 1554 -0.25 1553 -0.53 1552 -0.23 1551 -0.24 1550 0.03 1549 -1.08 1548 -0.71 1547 -0.1 1546 -0.86 1545 -0.06 1544 -0.19 1543 -0.05 1542 -0.89 1541 -0.52 1540 -1.25 1539 -1.47 1538 -1.13 1537 -1.28 1536 -2.35 1535 -0.9 1534 -0.48 1533 -0.96 1532 -0.36 1531 -0.33 1530 -0.97 1529 -0.19 1528 -0.89 1527 -0.19 1526 -1.48 1525 -0.04 1524 -1.4 1523 -2.01 1522 -0.03 1521 -1.88 1520 -0.14 1519 -1.28 1518 -0.83 1517 -0.91 1516 -1.57 1515 -0.86 1514 -2.3 1513 -0.97 1512 0.19 1511 0.07 1510 -0.42 1509 -0.58 1508 0.07 1507 -1.81 1506 -0.45 1505 -0.6 1504 0.11 1503 0.19 1502 0.44 1501 -1.4 1500 0.59 1499 -1.42 1498 -1.15 1497 -1.29 1496 -1.06 1495 -0.81 1494 -0.08 1493 -0.55 1492 0.47 1491 -0.3 1490 -1.29 1489 0.16 1488 -0.44 1487 -0.09 1486 -0.66 1485 -0.23 1484 -1.27 1483 -1.29 1482 -0.44 1481 -1.07 1480 -0.31 1479 NaN 1478 NaN 1477 NaN 1476 NaN 1475 NaN 1474 NaN 1473 NaN 1472 NaN 1471 NaN 1470 NaN 1469 NaN 1468 NaN 1467 NaN 1466 NaN 1465 NaN 1464 NaN 1463 -0.4 1462 -0.42 1461 -1.05 1460 -0.75 1459 -0.89 1458 -0.91 1457 -1.37 1456 -1 1455 -0.8 1454 -0.51 1453 -0.07 1452 -0.43 1451 -0.48 1450 -1.85 1449 -0.95 1448 -0.35 1447 -0.58 1446 0.55 1445 -0.76 1444 0.14 1443 -0.83 1442 NaN 1441 NaN 1440 NaN 1439 NaN 1438 NaN 1437 NaN 1436 NaN 1435 NaN 1434 NaN 1433 NaN 1432 NaN 1431 NaN 1430 NaN 1429 NaN 1428 NaN 1427 NaN 1426 NaN 1425 NaN 1424 NaN 1423 NaN 1422 NaN 1421 NaN 1420 NaN 1419 NaN 1418 NaN 1417 NaN 1416 NaN 1415 NaN 1414 NaN 1413 NaN 1412 NaN 1411 NaN 1410 NaN 1409 NaN 1408 NaN 1407 NaN 1406 NaN 1405 NaN 1404 NaN 1403 NaN 1402 NaN 1401 NaN 1400 NaN