# Suwannee River, Florida 500 Year Streamflow Reconstruction #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #----------------------------------------------------------------------- # Template Version 3.0 # Encoding: UTF-8 # NOTE: Please cite Publication, and Online_Resource and date accessed when using these data. # If there is no publication information, please cite Investigators, Title, and Online_Resource and date accessed. # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/31732 # Description: NOAA Landing Page # Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/reconstructions/northamerica/usa/suwannee2017flow.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Data Type: Climate Reconstructions # # Dataset DOI: # # Parameter_Keywords: streamflow #-------------------- # Contribution_Date # Date: 2020-10-30 #-------------------- # File_Last_Modified_Date # Date: 2020-10-30 #-------------------- # Title # Study_Name: Suwannee River, Florida 500 Year Streamflow Reconstruction #-------------------- # Investigators # Investigators: Harley, G.L.; Maxwell, J.T. #-------------------- # Description_Notes_and_Keywords # Description: Tree-ring based streamflow reconstruction for the Suwannee River, north-central Florida, USA, for 1525-2005 CE. # Provided Keywords: Florida, climate change, southeastern United States, dendrochronology, streamflow, drought #-------------------- # Publication # Authors: Grant L. Harley, Justin T. Maxwell, Evan Larson, Henri D. Grissino-Mayer, Joseph Henderson, Jean Huffman # Published_Date_or_Year: 2017-01-01 # Published_Title: Suwannee River flow variability 1550-2005 CE reconstructed from a multispecies tree-ring network # Journal_Name: Journal of Hydrology # Volume: 544 # Edition: # Issue: # Pages: 438-451 # Report_Number: # DOI: 10.1016/j.jhydrol.2016.11.020 # Online_Resource: https://www.sciencedirect.com/science/article/abs/pii/S0022169416307260 # Full_Citation: # Abstract: Understanding the long-term natural flow regime of rivers enables resource managers to more accurately model water level variability. Models for managing water resources are important in Florida where population increase is escalating demand on water resources and infrastructure. The Suwannee River is the second largest river system in Florida and the least impacted by anthropogenic disturbance. We used new and existing tree-ring chronologies from multiple species to reconstruct mean March-October discharge for the Suwannee River during the period 1550-2005 CE and place the short period of instrumental flows (since 1927 CE) into historical context. We used a nested principal components regression method to maximize the use of chronologies with varying time coverage in the network. Modeled streamflow estimates indicated that instrumental period flow conditions do not adequately capture the full range of Suwannee River flow variability beyond the observational period. Although extreme dry and wet events occurred in the gage record, pluvials and droughts that eclipse the intensity and duration of instrumental events occurred during the 16-19th centuries. The most prolonged and severe dry conditions during the past 450 years occurred during the 1560s CE. In this prolonged drought period mean flow was estimated at 17% of the mean instrumental period flow. Significant peaks in spectral density at 2-7, 10, 45, and 85-year periodicities indicated the important influence of coupled oceanic-atmospheric processes on Suwannee River streamflow over the past four centuries, though the strength of these periodicities varied over time. Future water planning based on current flow expectations could prove devastating to natural and human systems if a prolonged and severe drought mirroring the 16th and 18th century events occurred. Future work in the region will focus on updating existing tree-ring chronologies and developing new collections from moisture-sensitive sites to improve understandings of past hydroclimate in the region. #------------------ # Funding_Agency # Funding_Agency_Name: # Grant: #------------------ # Site_Information # Site_Name: Suwannee River Basin # Location: North America>United States Of America>Florida # Country: United States Of America # Northernmost_Latitude: 32 # Southernmost_Latitude: 29 # Easternmost_Longitude: -83 # Westernmost_Longitude: -84 # Elevation: 16 #------------------ # Data_Collection # Collection_Name: Suwannee2017flow # Earliest_Year: 1525 # Most_Recent_Year: 2005 # Time_Unit: Year CE # Core_Length: # Notes: #------------------ # Chronology_Information # Chronology: # #---------------- # Variables # # Data variables follow are preceded by "##" in columns one and two. # Data line variables format: one per line, shortname-tab-variable components (what, material, error, units, seasonality, data type,detail, method, C or N for Character or Numeric data, free text) # ## Year age, , , year Common Era, , climate reconstructions; tree rings, , ,N, ## discharge streamflow, ring width, , cubic meter per second, Mar-Oct,climate reconstructions; tree rings,,,N, # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # Year discharge 1525 109.8 1526 100.6 1527 125.8 1528 61.5 1529 78.7 1530 37.7 1531 90.5 1532 30.8 1533 10.7 1534 11.0 1535 4.1 1536 13.5 1537 18.6 1538 42.1 1539 50.8 1540 31.8 1541 25.3 1542 2.5 1543 11.4 1544 18.4 1545 29.5 1546 33.3 1547 17.9 1548 11.3 1549 29.6 1550 46.5 1551 7.4 1552 4.5 1553 51.1 1554 39.8 1555 24.6 1556 10.1 1557 13.3 1558 40.9 1559 31.1 1560 14.9 1561 7.3 1562 13.0 1563 6.7 1564 10.3 1565 16.4 1566 4.6 1567 6.4 1568 4.5 1569 2.1 1570 13.7 1571 20.2 1572 74.4 1573 26.8 1574 19.1 1575 44.1 1576 60.6 1577 34.3 1578 75.6 1579 20.1 1580 29.1 1581 32.5 1582 70.6 1583 11.7 1584 28.5 1585 9.1 1586 13.5 1587 2.8 1588 11.5 1589 15.7 1590 57.1 1591 29.9 1592 40.7 1593 16.5 1594 15.6 1595 9.0 1596 32.9 1597 25.0 1598 9.4 1599 10.6 1600 25.3 1601 34.0 1602 52.8 1603 21.7 1604 23.2 1605 104.9 1606 46.6 1607 30.3 1608 17.1 1609 33.6 1610 7.3 1611 12.5 1612 26.7 1613 104.4 1614 30.6 1615 61.9 1616 21.4 1617 79.0 1618 28.3 1619 17.2 1620 16.3 1621 14.2 1622 16.9 1623 30.0 1624 42.9 1625 30.6 1626 14.2 1627 7.6 1628 10.5 1629 19.3 1630 24.8 1631 21.8 1632 13.2 1633 3.2 1634 6.6 1635 47.2 1636 12.2 1637 20.2 1638 6.2 1639 19.4 1640 26.4 1641 26.4 1642 36.5 1643 3.8 1644 4.6 1645 5.0 1646 31.9 1647 15.6 1648 42.7 1649 101.1 1650 133.3 1651 40.4 1652 21.6 1653 25.9 1654 12.1 1655 82.2 1656 12.7 1657 9.3 1658 7.5 1659 13.5 1660 29.8 1661 48.5 1662 38.4 1663 13.0 1664 3.2 1665 9.4 1666 16.7 1667 25.5 1668 37.0 1669 27.0 1670 26.3 1671 18.4 1672 4.6 1673 6.6 1674 31.0 1675 12.7 1676 5.6 1677 10.7 1678 20.3 1679 43.6 1680 57.4 1681 75.3 1682 29.6 1683 17.4 1684 14.1 1685 17.1 1686 24.8 1687 51.1 1688 156.6 1689 74.1 1690 29.7 1691 20.1 1692 71.3 1693 58.2 1694 40.9 1695 61.3 1696 28.5 1697 32.9 1698 35.1 1699 8.0 1700 23.7 1701 16.3 1702 25.9 1703 8.9 1704 30.6 1705 71.7 1706 14.3 1707 59.8 1708 7.9 1709 15.7 1710 31.7 1711 85.9 1712 28.6 1713 29.0 1714 8.9 1715 10.9 1716 37.7 1717 22.0 1718 9.2 1719 43.4 1720 12.6 1721 45.4 1722 9.3 1723 76.2 1724 17.5 1725 29.0 1726 8.5 1727 9.8 1728 19.4 1729 26.0 1730 14.4 1731 22.2 1732 73.2 1733 129.7 1734 28.0 1735 15.7 1736 27.2 1737 12.2 1738 7.0 1739 18.6 1740 15.8 1741 7.6 1742 77.4 1743 32.0 1744 24.7 1745 17.4 1746 15.0 1747 17.7 1748 20.1 1749 18.0 1750 8.7 1751 28.4 1752 11.6 1753 22.0 1754 22.7 1755 13.4 1756 8.5 1757 11.1 1758 5.6 1759 6.9 1760 15.5 1761 47.4 1762 10.3 1763 13.5 1764 6.6 1765 8.9 1766 59.7 1767 21.5 1768 35.9 1769 31.1 1770 46.4 1771 57.1 1772 16.2 1773 9.3 1774 14.6 1775 28.5 1776 134.2 1777 24.6 1778 26.8 1779 68.2 1780 41.8 1781 17.9 1782 48.4 1783 11.2 1784 16.1 1785 72.7 1786 61.2 1787 17.8 1788 52.9 1789 40.6 1790 12.4 1791 5.8 1792 24.5 1793 52.2 1794 21.9 1795 25.7 1796 14.7 1797 5.8 1798 8.0 1799 7.2 1800 9.6 1801 5.7 1802 10.6 1803 37.1 1804 32.0 1805 30.5 1806 48.7 1807 40.1 1808 34.2 1809 14.1 1810 17.5 1811 3.7 1812 16.9 1813 22.2 1814 21.1 1815 15.8 1816 8.8 1817 19.8 1818 4.1 1819 11.1 1820 52.3 1821 109.6 1822 14.2 1823 37.9 1824 27.3 1825 96.3 1826 24.9 1827 27.6 1828 18.1 1829 31.4 1830 8.7 1831 29.9 1832 101.6 1833 95.7 1834 32.1 1835 44.4 1836 39.2 1837 16.9 1838 16.5 1839 4.9 1840 18.2 1841 28.5 1842 28.7 1843 12.7 1844 7.6 1845 6.5 1846 42.8 1847 22.6 1848 4.7 1849 5.9 1850 6.6 1851 10.1 1852 16.4 1853 6.2 1854 13.5 1855 6.1 1856 19.8 1857 19.2 1858 35.9 1859 38.4 1860 7.5 1861 23.3 1862 129.1 1863 69.5 1864 50.0 1865 52.8 1866 80.7 1867 50.3 1868 64.2 1869 30.7 1870 32.8 1871 89.3 1872 13.1 1873 46.3 1874 24.3 1875 15.2 1876 14.4 1877 36.4 1878 40.9 1879 21.0 1880 16.4 1881 16.6 1882 52.6 1883 43.9 1884 41.1 1885 41.2 1886 89.5 1887 6.1 1888 29.3 1889 14.4 1890 10.1 1891 9.2 1892 15.4 1893 23.5 1894 14.5 1895 23.2 1896 6.4 1897 9.0 1898 2.7 1899 5.2 1900 14.5 1901 24.8 1902 47.9 1903 47.3 1904 6.0 1905 13.5 1906 34.0 1907 31.0 1908 42.3 1909 38.5 1910 6.2 1911 11.8 1912 66.3 1913 9.8 1914 5.6 1915 12.6 1916 16.9 1917 26.1 1918 26.7 1919 66.2 1920 23.6 1921 27.5 1922 65.1 1923 72.9 1924 23.0 1925 4.7 1926 13.4 1927 9.7 1928 169.0 1929 154.8 1930 15.0 1931 5.5 1932 1.9 1933 14.6 1934 11.2 1935 6.0 1936 17.7 1937 32.3 1938 18.4 1939 34.8 1940 8.7 1941 10.6 1942 18.3 1943 20.4 1944 55.8 1945 107.1 1946 144.8 1947 55.8 1948 59.5 1949 56.5 1950 7.7 1951 12.5 1952 15.5 1953 26.2 1954 3.4 1955 2.2 1956 8.1 1957 37.5 1958 55.8 1959 60.8 1960 62.5 1961 34.1 1962 8.1 1963 14.4 1964 64.2 1965 49.6 1966 59.9 1967 5.9 1968 8.1 1969 31.8 1970 54.4 1971 88.9 1972 60.2 1973 104.4 1974 28.2 1975 77.8 1976 7.8 1977 9.5 1978 22.3 1979 16.7 1980 9.2 1981 7.8 1982 44.9 1983 36.7 1984 37.4 1985 8.9 1986 5.2 1987 6.8 1988 24.0 1989 53.4 1990 53.6 1991 125.0 1992 33.8 1993 51.7 1994 68.8 1995 14.5 1996 19.9 1997 31.0 1998 31.0 1999 5.7 2000 11.2 2001 15.8 2002 18.1 2003 13.0 2004 84.7 2005 18.2