# Hughes - Muir Grove - SEGI - ITRDB CA713 #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/32182 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-tree-32182.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Tree Ring # # Dataset_DOI: # # Science_Keywords: #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ca713a-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ca713a-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ca713a.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2021-01-03 #-------------------- # File_Last_Modified_Date # Date: 2021-01-03 #-------------------- # Title # Study_Name: Hughes - Muir Grove - SEGI - ITRDB CA713 #-------------------- # Investigators # Investigators: Hughes, M.K.(https://orcid.org/0000-0003-1062-3167); Touchan, R. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Raw Measurements file added 2021-02-22. #-------------------- # Publication # Authors: R. Touchan, B. Black, E. Shamir, M.K. Hughes, and D.M. Meko # Journal_Name: Climate Dynamics # Published_Title: A multimillennial snow water equivalent reconstruction from giant sequoia tree rings # Published_Date_or_Year: 2021 # Volume: # Pages: # Issue: # Report_Number: # DOI: 10.1007/s00382-020-05548-0 # Full_Citation: None # Abstract: The first dendroclimatic reconstruction of May 1 snow water equivalent (SWE) was developed from a Sequoiadendron giganteum regional tree-ring chronology network of 23 sites in central California for the period 90-2012 CE. The reconstruction is based on a significant relationship between May 1 SWE and tree-ring growth and shows climate variability from interannual to intercentennial time scales. A regression-based reconstruction equation explains up to 55% of the variance of SWE for 1940-2012. Split-sample validation supports our use of a reconstruction model based on the full period of reliable observational data (1940-2012). Thresholds for May 1 SWE low (15 percentile) and high (80 percentile) years were selected based on the exploratory scatterplots relationship between observed and reconstructed data for the period 1940-2012. The longest period of consecutive low-SWE years in the reconstruction is 2 years and the frequency of the lowest SWE years is highest during the period 710-809 CE. The longest high-SWE period, defined by consecutive wet years, is 3 years (558-560 CE). SWE and its reconstruction positively correlate with northeastern Pacific sea surface temperatures, the low-frequency variability of which may provide some predictive ability. Ultimately, the instrumental record and reconstruction suggest that unlike other sites in the region, twentieth century SWE variability in these Sequoia groves has remained within historical boundaries and relatively buffered from extremes and severe declines, though this is likely to change in coming decades with potentially negative effects on water availability for these trees. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: Muir Grove # Location: California # Northernmost_Latitude: 36.6333 # Southernmost_Latitude: 36.6333 # Easternmost_Longitude: -118.6333 # Westernmost_Longitude: -118.6333 # Elevation_m: 1995 #-------------------- # Data_Collection # Collection_Name: CA713 # First_Year: 1399 # Last_Year: 1991 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: None #-------------------- # Species # Species_Name: Sequoiadendron giganteum (Lindl.) Buchholz # Common_Name: giant sequoia # Tree_Species_Code: SEGI #-------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables format: shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard chronology method,N, ## numsamp number of samples,,,count,,tree ring,,,N, #--------------------- # Data: # Missing_Values: NA age_CE trsgi numsamp 1399 1.061 1 1400 0.885 1 1401 1.175 1 1402 0.776 1 1403 1.149 1 1404 1.432 1 1405 1.514 1 1406 1.618 1 1407 1.815 1 1408 0.902 1 1409 0.693 1 1410 0.578 1 1411 1.036 1 1412 1.086 1 1413 0.875 1 1414 1.097 1 1415 0.976 1 1416 1.113 1 1417 1.122 1 1418 1.292 1 1419 1.081 1 1420 1.031 1 1421 0.849 1 1422 1.132 1 1423 0.967 1 1424 1.036 1 1425 0.812 1 1426 0.696 1 1427 0.924 1 1428 0.648 1 1429 0.934 1 1430 0.844 1 1431 0.94 1 1432 1.027 1 1433 1.133 1 1434 1.038 1 1435 1.14 1 1436 0.845 1 1437 0.863 1 1438 0.851 1 1439 0.759 1 1440 0.849 1 1441 0.858 1 1442 0.729 1 1443 0.812 1 1444 0.697 1 1445 0.847 1 1446 0.839 1 1447 0.886 1 1448 0.862 1 1449 0.942 1 1450 0.979 1 1451 0.923 1 1452 0.818 1 1453 0.966 1 1454 1.19 1 1455 1.1 1 1456 0.906 1 1457 0.939 1 1458 1.029 1 1459 0.918 1 1460 1.126 1 1461 0.789 1 1462 0.906 1 1463 1.038 1 1464 0.918 1 1465 0.999 1 1466 0.825 1 1467 0.931 1 1468 0.682 1 1469 0.81 1 1470 0.908 1 1471 0.831 1 1472 0.947 1 1473 0.726 1 1474 0.879 1 1475 0.865 1 1476 0.801 1 1477 0.982 1 1478 0.858 1 1479 0.738 1 1480 1.198 1 1481 1.167 1 1482 1.208 1 1483 1.238 1 1484 1.045 1 1485 1.128 1 1486 0.985 1 1487 0.918 1 1488 0.938 1 1489 0.898 1 1490 0.758 1 1491 0.969 1 1492 0.885 1 1493 1.009 1 1494 0.979 1 1495 0.974 1 1496 1.126 1 1497 1.215 1 1498 1.249 1 1499 1.076 1 1500 1.026 1 1501 1.159 1 1502 1.171 2 1503 1.392 2 1504 1.458 2 1505 1.336 2 1506 1.345 2 1507 1.15 2 1508 1.05 2 1509 1.12 2 1510 0.982 2 1511 0.948 2 1512 1.15 2 1513 1.09 2 1514 0.985 2 1515 0.918 3 1516 1.115 3 1517 1.166 4 1518 0.872 4 1519 1.043 4 1520 1.02 4 1521 1.04 4 1522 0.882 5 1523 0.895 5 1524 0.938 5 1525 1.211 5 1526 1.131 5 1527 0.949 5 1528 0.949 5 1529 0.537 5 1530 1.015 5 1531 1.094 5 1532 0.721 5 1533 0.681 5 1534 0.906 5 1535 0.957 5 1536 0.818 5 1537 0.825 5 1538 1.262 5 1539 1.064 5 1540 1.194 5 1541 1.149 5 1542 1.105 5 1543 1.129 5 1544 1.099 6 1545 1.188 6 1546 1.244 6 1547 1.178 6 1548 0.929 6 1549 1 6 1550 0.814 7 1551 1.088 7 1552 0.975 7 1553 1.057 8 1554 1.033 9 1555 0.996 9 1556 0.831 9 1557 0.808 9 1558 0.875 9 1559 1.088 9 1560 1.079 9 1561 0.983 9 1562 1.094 9 1563 0.977 9 1564 1.076 9 1565 0.894 10 1566 0.952 10 1567 1.018 10 1568 1.19 10 1569 1.048 10 1570 1.1 10 1571 0.736 10 1572 1.171 10 1573 1.223 10 1574 1.181 10 1575 1.009 10 1576 0.869 10 1577 1.084 10 1578 1.075 10 1579 0.574 10 1580 0.01 10 1581 0.736 10 1582 0.983 10 1583 1.242 11 1584 1.084 11 1585 0.984 12 1586 1.012 12 1587 0.96 14 1588 0.966 14 1589 1.131 14 1590 0.908 14 1591 1.22 14 1592 1.073 15 1593 1.072 15 1594 0.874 15 1595 0.862 15 1596 0.867 15 1597 0.962 15 1598 0.882 15 1599 1.08 15 1600 0.937 16 1601 1.071 16 1602 1.073 16 1603 1 16 1604 1.099 16 1605 1.072 18 1606 1.025 18 1607 0.949 19 1608 1.113 20 1609 1.151 20 1610 1.153 20 1611 1.085 20 1612 0.933 20 1613 0.773 20 1614 0.945 20 1615 0.978 20 1616 1.001 20 1617 1.081 20 1618 1.008 20 1619 0.99 20 1620 1.178 21 1621 1.033 21 1622 0.968 21 1623 1.123 21 1624 1.152 20 1625 1.033 20 1626 1.003 20 1627 1.003 20 1628 1.059 21 1629 1.02 21 1630 1.023 22 1631 0.869 22 1632 0.568 22 1633 0.995 22 1634 0.861 22 1635 1.068 22 1636 1.125 22 1637 0.767 22 1638 0.844 22 1639 0.959 22 1640 1.069 23 1641 1.058 23 1642 1.058 23 1643 0.964 23 1644 1.112 23 1645 1.073 23 1646 0.981 23 1647 0.919 23 1648 0.966 23 1649 0.997 23 1650 0.825 23 1651 1.03 23 1652 1.036 24 1653 0.645 24 1654 0.581 24 1655 0.838 24 1656 0.962 24 1657 1.051 24 1658 1.038 25 1659 0.994 25 1660 1.002 26 1661 1.036 26 1662 0.985 26 1663 1.019 27 1664 1.087 28 1665 1.037 29 1666 1.098 29 1667 0.91 29 1668 1.033 29 1669 0.849 29 1670 0.886 30 1671 0.948 30 1672 0.992 30 1673 1.002 30 1674 1.083 31 1675 1.034 31 1676 0.954 31 1677 1.115 31 1678 1.111 31 1679 0.98 31 1680 1.028 31 1681 0.94 32 1682 0.93 32 1683 0.98 33 1684 1.03 33 1685 1.066 33 1686 1.084 33 1687 1.152 33 1688 1.322 33 1689 1.266 34 1690 1.161 35 1691 0.927 35 1692 1.122 35 1693 1.083 36 1694 1.205 36 1695 1.119 36 1696 0.931 36 1697 1.088 36 1698 1.027 36 1699 0.966 37 1700 0.816 37 1701 0.894 37 1702 0.796 37 1703 0.671 37 1704 0.813 37 1705 0.943 37 1706 0.862 37 1707 0.943 38 1708 1.101 38 1709 1.087 38 1710 1.027 38 1711 0.949 38 1712 0.927 38 1713 1.032 38 1714 0.953 38 1715 0.933 38 1716 0.968 38 1717 1.051 38 1718 0.866 38 1719 0.846 38 1720 0.856 38 1721 0.836 38 1722 0.807 38 1723 0.87 38 1724 0.888 38 1725 1.067 38 1726 1.106 38 1727 0.982 38 1728 1.032 38 1729 0.74 38 1730 1.125 38 1731 0.997 38 1732 0.966 38 1733 0.936 38 1734 0.943 38 1735 1.067 38 1736 0.906 38 1737 1.056 38 1738 1.114 38 1739 0.858 39 1740 1.022 39 1741 0.989 40 1742 1.037 40 1743 1.02 40 1744 1.005 40 1745 1.116 40 1746 0.941 40 1747 1.084 41 1748 0.911 41 1749 0.945 41 1750 0.858 41 1751 0.916 41 1752 1.016 41 1753 0.956 41 1754 0.843 41 1755 0.869 41 1756 0.774 41 1757 0.946 41 1758 1.116 41 1759 1.133 41 1760 1.21 41 1761 1.228 41 1762 1.086 42 1763 1.091 42 1764 1.037 43 1765 0.916 43 1766 1.156 43 1767 1.104 43 1768 1.146 43 1769 1.016 43 1770 1.219 43 1771 1.038 43 1772 1.223 43 1773 1.04 43 1774 1.23 43 1775 1.093 43 1776 1.006 43 1777 0.231 43 1778 0.739 44 1779 0.967 45 1780 1.084 45 1781 1.014 46 1782 0.86 47 1783 0.71 48 1784 1.061 48 1785 1.197 48 1786 1.189 48 1787 0.909 48 1788 0.91 48 1789 1.073 48 1790 1.034 48 1791 0.949 48 1792 0.987 48 1793 0.891 48 1794 0.825 48 1795 0.579 48 1796 0.783 49 1797 1.179 49 1798 1.252 49 1799 1.136 49 1800 1.258 49 1801 1.09 49 1802 1.191 49 1803 1.178 49 1804 1.144 49 1805 1.053 50 1806 0.95 50 1807 0.998 50 1808 0.89 50 1809 0.983 50 1810 1.027 50 1811 1.085 50 1812 0.891 50 1813 0.938 50 1814 1.135 50 1815 0.973 50 1816 1.086 50 1817 0.975 50 1818 0.836 50 1819 0.851 50 1820 0.924 50 1821 1.046 50 1822 0.903 50 1823 0.997 50 1824 0.962 50 1825 1.086 50 1826 1.064 50 1827 0.91 51 1828 0.979 51 1829 0.661 51 1830 0.968 51 1831 1.131 51 1832 1.342 51 1833 1.024 51 1834 1.006 51 1835 0.863 51 1836 0.958 51 1837 0.98 51 1838 1.045 51 1839 0.956 51 1840 0.909 51 1841 0.533 51 1842 0.968 51 1843 0.687 51 1844 0.95 51 1845 1.146 51 1846 1.044 51 1847 1.08 51 1848 0.978 51 1849 1.025 51 1850 0.922 51 1851 0.789 51 1852 1.05 51 1853 0.924 50 1854 0.756 50 1855 0.951 50 1856 0.912 50 1857 1.058 50 1858 1.013 50 1859 1.124 50 1860 1.203 50 1861 1.233 50 1862 1.12 50 1863 1.183 50 1864 0.887 50 1865 0.971 50 1866 1.085 50 1867 1.023 50 1868 1.042 50 1869 1.135 50 1870 1.07 50 1871 0.978 50 1872 0.963 50 1873 0.94 51 1874 0.892 51 1875 0.973 51 1876 1.014 51 1877 0.892 51 1878 1.041 51 1879 0.891 52 1880 0.99 52 1881 1.129 52 1882 1.047 52 1883 1.079 52 1884 1.17 52 1885 1.214 52 1886 1.079 52 1887 1.164 52 1888 1.17 52 1889 1.085 52 1890 1.188 52 1891 1.178 52 1892 1.097 53 1893 1.153 53 1894 1.229 53 1895 1.182 53 1896 1.122 53 1897 1.027 53 1898 0.765 53 1899 0.849 53 1900 1.163 54 1901 1.129 54 1902 0.89 54 1903 1.025 54 1904 1.005 54 1905 0.956 54 1906 1.013 54 1907 0.991 54 1908 0.939 54 1909 0.822 54 1910 0.904 54 1911 0.873 54 1912 0.959 54 1913 1.05 54 1914 0.877 54 1915 0.882 54 1916 1.016 54 1917 0.92 54 1918 0.963 54 1919 0.86 54 1920 0.797 54 1921 0.92 54 1922 0.915 54 1923 0.916 54 1924 0.488 54 1925 0.932 54 1926 0.801 54 1927 0.901 54 1928 0.998 54 1929 1.043 54 1930 0.984 54 1931 0.817 54 1932 0.776 54 1933 0.952 54 1934 1.164 54 1935 1.031 54 1936 1.067 54 1937 0.849 54 1938 1.031 54 1939 0.929 54 1940 0.921 54 1941 0.932 54 1942 1.012 54 1943 0.966 54 1944 0.89 54 1945 0.89 54 1946 0.819 54 1947 0.781 54 1948 0.801 54 1949 0.771 54 1950 0.882 54 1951 0.906 54 1952 0.913 54 1953 0.844 54 1954 1.091 54 1955 0.919 54 1956 0.965 54 1957 0.978 54 1958 1.182 54 1959 0.69 54 1960 0.828 54 1961 0.494 54 1962 0.897 54 1963 0.908 54 1964 1.035 54 1965 1.016 54 1966 0.977 54 1967 0.971 54 1968 1.094 54 1969 1.204 54 1970 1.05 54 1971 1.211 54 1972 0.989 54 1973 1.021 54 1974 1.19 54 1975 1.232 54 1976 1.009 54 1977 0.561 54 1978 0.934 54 1979 0.882 54 1980 1.085 54 1981 1.191 54 1982 1.324 54 1983 1.081 54 1984 1.115 54 1985 1.215 54 1986 1.358 54 1987 0.898 54 1988 1.437 54 1989 1.458 54 1990 1.507 54 1991 1.438 52