# Hughes - Garfield Grove - SEGI - ITRDB CA716 #---------------------------------------------------- # 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/32185 # 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-32185.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/ca716r-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ca716r-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ca716r.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 - Garfield Grove - SEGI - ITRDB CA716 #-------------------- # 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: Garfield Grove # Location: California # Northernmost_Latitude: 36.3333 # Southernmost_Latitude: 36.3333 # Easternmost_Longitude: -118.7167 # Westernmost_Longitude: -118.7167 # Elevation_m: 1845 #-------------------- # Data_Collection # Collection_Name: CA716 # First_Year: 1275 # 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 1275 0.878 1 1276 1.037 1 1277 0.957 1 1278 0.898 1 1279 0.915 1 1280 0.955 1 1281 0.823 1 1282 0.972 1 1283 0.988 1 1284 0.999 1 1285 0.957 1 1286 0.899 1 1287 0.843 1 1288 1.047 1 1289 0.952 1 1290 0.99 1 1291 0.959 1 1292 0.938 1 1293 0.959 1 1294 0.904 1 1295 0.926 1 1296 0.857 1 1297 0.823 1 1298 1.017 1 1299 0.865 1 1300 1.038 2 1301 1.033 2 1302 0.985 2 1303 1.118 2 1304 1.174 2 1305 1.102 2 1306 1.164 2 1307 1.184 2 1308 1.152 2 1309 1.048 2 1310 1.175 2 1311 1.114 2 1312 1.079 2 1313 1.164 2 1314 1.335 2 1315 0.867 2 1316 1.2 2 1317 1.102 2 1318 1.131 2 1319 0.999 2 1320 0.794 2 1321 0.932 2 1322 1.272 2 1323 1.055 2 1324 1.193 2 1325 0.923 2 1326 0.937 2 1327 1.208 2 1328 0.905 2 1329 1.066 2 1330 1.192 2 1331 1.105 2 1332 0.835 2 1333 1.103 2 1334 1.123 2 1335 1.011 2 1336 1.11 2 1337 0.94 2 1338 0.939 2 1339 0.886 2 1340 1.017 2 1341 0.99 2 1342 0.855 2 1343 1.103 2 1344 1.125 2 1345 1.129 2 1346 1.049 2 1347 0.934 2 1348 0.97 2 1349 1.2 2 1350 0.894 2 1351 0.758 2 1352 0.995 2 1353 1.16 2 1354 1.142 2 1355 1.078 2 1356 1.172 2 1357 0.896 2 1358 0.723 2 1359 0.91 2 1360 1.009 2 1361 1.013 2 1362 0.926 2 1363 0.993 2 1364 1.089 2 1365 0.789 2 1366 1.01 2 1367 1.021 2 1368 0.978 2 1369 0.951 2 1370 0.906 2 1371 0.957 2 1372 1.025 2 1373 1.018 2 1374 0.975 2 1375 0.938 2 1376 0.927 2 1377 0.836 2 1378 1.04 2 1379 0.97 2 1380 0.951 2 1381 1.004 2 1382 0.903 2 1383 0.992 2 1384 0.961 2 1385 0.974 2 1386 1.003 2 1387 0.945 2 1388 0.84 2 1389 1.076 2 1390 0.733 2 1391 0.979 2 1392 0.971 2 1393 0.928 2 1394 0.963 2 1395 0.976 2 1396 0.972 2 1397 1.021 2 1398 0.927 2 1399 0.978 2 1400 0.851 2 1401 1.069 2 1402 0.761 2 1403 1.012 2 1404 1.121 2 1405 1.028 2 1406 0.83 2 1407 1.02 2 1408 0.927 2 1409 0.925 2 1410 0.703 2 1411 0.986 2 1412 1.013 2 1413 0.74 2 1414 1.01 2 1415 1.017 2 1416 1.051 2 1417 0.967 2 1418 1.121 2 1419 0.941 2 1420 1.073 2 1421 0.97 2 1422 0.87 2 1423 0.935 2 1424 1.016 3 1425 0.891 3 1426 0.856 3 1427 0.985 3 1428 0.867 3 1429 1.021 3 1430 0.903 3 1431 1.044 3 1432 1.049 3 1433 0.965 3 1434 1.029 3 1435 0.941 4 1436 0.983 4 1437 1.035 4 1438 0.976 4 1439 0.868 4 1440 1.028 4 1441 0.962 4 1442 0.869 4 1443 0.986 4 1444 0.857 4 1445 0.951 4 1446 1.024 4 1447 1.078 4 1448 1.098 4 1449 1.013 4 1450 1.086 4 1451 0.96 4 1452 1.062 4 1453 1.048 4 1454 1.068 4 1455 1.064 4 1456 0.784 4 1457 1.076 4 1458 0.973 4 1459 1.071 4 1460 1.108 4 1461 0.839 4 1462 1.021 4 1463 1.154 4 1464 0.974 4 1465 1.029 4 1466 1.047 4 1467 0.997 4 1468 0.861 4 1469 0.969 4 1470 0.972 4 1471 1.009 4 1472 0.962 4 1473 0.946 4 1474 1.019 4 1475 1.074 4 1476 0.924 4 1477 1.064 4 1478 1.113 4 1479 0.924 4 1480 1.165 4 1481 0.961 4 1482 1.128 4 1483 0.988 4 1484 1.02 4 1485 0.863 4 1486 0.987 4 1487 1.001 4 1488 1.005 4 1489 0.993 4 1490 0.893 4 1491 1.031 4 1492 1.015 4 1493 0.936 4 1494 1.092 4 1495 1.116 4 1496 1.068 4 1497 0.842 4 1498 1.043 4 1499 0.916 4 1500 0.973 4 1501 1.053 4 1502 1.155 4 1503 1.089 4 1504 1.067 4 1505 0.968 4 1506 1.055 4 1507 0.973 4 1508 0.985 4 1509 1.107 4 1510 0.888 4 1511 0.905 4 1512 1.055 4 1513 1.079 4 1514 1.011 4 1515 1.032 4 1516 0.943 4 1517 1.09 4 1518 0.879 4 1519 1.021 4 1520 0.977 4 1521 1.124 4 1522 0.98 4 1523 1.072 4 1524 1.044 4 1525 1.146 4 1526 0.952 4 1527 1.05 4 1528 0.945 4 1529 0.764 4 1530 1.028 4 1531 1.172 4 1532 0.778 4 1533 0.914 4 1534 1.064 4 1535 1.004 4 1536 1.211 4 1537 0.954 4 1538 1.021 4 1539 1.125 4 1540 1.047 4 1541 0.937 4 1542 1.126 4 1543 0.947 4 1544 1.045 4 1545 1.094 4 1546 0.979 4 1547 1.081 4 1548 0.737 4 1549 1.07 4 1550 1.045 4 1551 1.15 4 1552 0.907 4 1553 1.15 4 1554 0.956 4 1555 0.956 4 1556 1.106 5 1557 1.034 5 1558 1.016 5 1559 0.908 5 1560 1.056 5 1561 1.131 5 1562 1.111 5 1563 0.984 5 1564 1.017 5 1565 1.079 5 1566 1.02 5 1567 1.044 5 1568 1.141 5 1569 0.874 5 1570 1.009 5 1571 0.567 5 1572 1.068 5 1573 1.162 5 1574 0.929 5 1575 1.09 5 1576 1.011 5 1577 1.136 5 1578 0.945 5 1579 0.425 5 1580 0.301 5 1581 1.3 5 1582 1.076 5 1583 1.25 5 1584 1.01 5 1585 1.082 5 1586 1.036 5 1587 1.188 6 1588 0.935 6 1589 1.198 6 1590 0.847 7 1591 1.092 7 1592 1.01 7 1593 1.059 7 1594 1.047 7 1595 1.024 7 1596 0.938 7 1597 1.043 7 1598 0.917 7 1599 0.988 7 1600 0.875 7 1601 0.99 7 1602 1.135 8 1603 0.894 8 1604 0.928 8 1605 1.059 9 1606 0.819 9 1607 0.992 9 1608 1.062 9 1609 0.999 9 1610 1.006 9 1611 1.101 9 1612 0.977 9 1613 0.86 9 1614 1.062 9 1615 1.033 9 1616 1.006 9 1617 1.036 10 1618 1.021 10 1619 0.99 11 1620 1.086 12 1621 0.783 12 1622 0.896 12 1623 1.083 12 1624 0.971 12 1625 0.995 12 1626 0.989 12 1627 0.951 12 1628 1.071 12 1629 0.895 12 1630 1.04 12 1631 0.888 12 1632 0.354 12 1633 1.175 12 1634 1.207 12 1635 1.134 12 1636 1.101 12 1637 0.805 12 1638 0.997 12 1639 1.074 12 1640 1.078 12 1641 1.05 13 1642 0.998 13 1643 1.004 13 1644 1.006 13 1645 1.063 13 1646 0.909 13 1647 1.06 13 1648 1.026 13 1649 0.961 13 1650 0.894 13 1651 1.045 13 1652 0.981 13 1653 0.76 13 1654 0.863 13 1655 1.066 13 1656 1.021 13 1657 1.059 13 1658 1.137 13 1659 1.077 13 1660 1.083 13 1661 1.093 13 1662 1.006 13 1663 1.042 13 1664 1 13 1665 1.086 13 1666 1.092 13 1667 0.965 14 1668 1.181 14 1669 0.969 15 1670 1.067 15 1671 1.029 15 1672 0.995 15 1673 1.048 15 1674 1.025 16 1675 1.015 16 1676 0.792 16 1677 1.044 16 1678 1.083 16 1679 1.052 16 1680 1.005 17 1681 0.998 17 1682 1.004 17 1683 1.097 17 1684 1.037 17 1685 1.008 17 1686 0.904 17 1687 0.976 17 1688 1.151 17 1689 0.917 17 1690 1.022 17 1691 0.881 17 1692 1.112 17 1693 0.918 17 1694 1.009 17 1695 1.137 17 1696 0.919 17 1697 1.032 17 1698 0.901 17 1699 0.97 17 1700 0.913 18 1701 1.02 18 1702 1.043 18 1703 0.852 18 1704 1.069 18 1705 1.03 18 1706 0.836 18 1707 0.902 18 1708 1.014 18 1709 1.161 18 1710 0.985 18 1711 0.957 19 1712 0.965 20 1713 1.016 21 1714 0.943 21 1715 0.926 21 1716 1.052 21 1717 1.086 21 1718 0.891 21 1719 0.955 22 1720 0.994 22 1721 0.749 23 1722 0.906 23 1723 1.049 23 1724 0.996 23 1725 1.097 23 1726 1.048 23 1727 0.942 23 1728 0.98 23 1729 0.472 23 1730 1.284 23 1731 1.05 23 1732 1.099 23 1733 1.09 23 1734 1.105 24 1735 1.15 24 1736 0.824 24 1737 1.165 24 1738 1.313 24 1739 0.701 24 1740 1.104 24 1741 1.028 24 1742 1.082 24 1743 0.895 24 1744 1.057 24 1745 1.038 24 1746 0.908 24 1747 1.083 25 1748 0.838 25 1749 0.953 25 1750 0.906 26 1751 0.955 26 1752 1.017 26 1753 0.917 27 1754 0.931 27 1755 0.861 27 1756 0.794 27 1757 0.819 27 1758 1.039 27 1759 0.891 27 1760 1.013 27 1761 1.148 27 1762 0.848 27 1763 0.911 28 1764 0.988 29 1765 0.767 29 1766 1.084 29 1767 0.978 29 1768 1.072 29 1769 0.973 29 1770 1.18 30 1771 1.122 31 1772 1.197 33 1773 0.951 33 1774 1.113 34 1775 1.008 34 1776 0.934 35 1777 0.306 35 1778 1.11 35 1779 1.219 35 1780 1.184 35 1781 0.979 35 1782 0.854 35 1783 0.82 35 1784 1.268 35 1785 1.05 35 1786 0.965 35 1787 0.891 35 1788 0.931 35 1789 1.013 35 1790 1.027 36 1791 0.875 37 1792 1.005 37 1793 0.944 37 1794 0.969 37 1795 0.641 38 1796 1.051 38 1797 1.253 38 1798 1.144 38 1799 1.044 38 1800 1.086 40 1801 1.01 40 1802 1.131 41 1803 1.006 41 1804 0.942 43 1805 0.943 43 1806 0.958 43 1807 0.956 43 1808 0.957 43 1809 0.984 43 1810 1.057 43 1811 0.972 43 1812 0.866 43 1813 0.991 43 1814 1.191 43 1815 0.938 43 1816 1.02 44 1817 0.949 44 1818 1.07 44 1819 0.982 44 1820 1.017 44 1821 1.008 45 1822 0.939 45 1823 0.903 45 1824 1.011 43 1825 1.235 43 1826 1.174 44 1827 0.939 45 1828 1.113 45 1829 0.94 45 1830 1.096 45 1831 1.16 45 1832 1.189 45 1833 0.877 45 1834 0.974 45 1835 0.844 45 1836 0.975 45 1837 1.076 45 1838 0.975 45 1839 0.952 46 1840 0.923 46 1841 0.679 47 1842 1.211 47 1843 1.059 47 1844 1.022 47 1845 1.171 47 1846 0.979 48 1847 1.186 48 1848 0.939 48 1849 1.071 48 1850 1.039 49 1851 0.906 50 1852 1.035 50 1853 1.045 50 1854 0.961 50 1855 0.998 50 1856 0.939 51 1857 0.952 51 1858 0.814 51 1859 0.94 51 1860 0.957 51 1861 0.922 51 1862 0.887 51 1863 1.01 51 1864 0.756 52 1865 1.025 52 1866 1.138 52 1867 1.033 52 1868 0.933 52 1869 1.006 52 1870 0.988 52 1871 0.948 52 1872 1.035 52 1873 1.01 53 1874 0.822 53 1875 1.041 53 1876 0.979 53 1877 0.816 53 1878 1.105 53 1879 1.042 53 1880 0.968 53 1881 1.201 53 1882 0.959 53 1883 1.09 53 1884 1.11 53 1885 1.477 53 1886 0.884 54 1887 1.069 54 1888 1.226 54 1889 1.057 54 1890 0.981 54 1891 0.884 54 1892 0.977 54 1893 1.038 54 1894 1.115 54 1895 0.98 54 1896 0.979 54 1897 1.004 54 1898 0.863 54 1899 0.952 54 1900 1.086 54 1901 1.034 54 1902 0.906 54 1903 1.093 54 1904 0.951 54 1905 0.904 54 1906 1.016 54 1907 1.055 54 1908 0.989 54 1909 0.883 54 1910 1.026 54 1911 0.91 54 1912 0.949 54 1913 1.08 54 1914 0.837 54 1915 0.981 54 1916 1.103 54 1917 0.896 54 1918 0.856 54 1919 0.989 54 1920 0.976 54 1921 1.063 54 1922 0.958 54 1923 1.001 54 1924 0.506 54 1925 1.204 54 1926 0.873 54 1927 0.989 54 1928 1.049 54 1929 0.942 54 1930 0.926 54 1931 0.717 54 1932 1.004 54 1933 1.091 54 1934 0.942 54 1935 0.977 54 1936 1.128 54 1937 0.876 54 1938 1.063 54 1939 0.92 54 1940 0.957 54 1941 1.078 54 1942 1.006 54 1943 0.97 54 1944 0.994 54 1945 1.051 54 1946 1.034 54 1947 0.898 54 1948 0.963 54 1949 0.88 54 1950 1.02 54 1951 1.078 54 1952 1.055 54 1953 0.985 54 1954 1.101 54 1955 0.907 54 1956 1.11 54 1957 0.947 54 1958 1.088 54 1959 0.676 54 1960 0.923 54 1961 0.74 54 1962 1.084 54 1963 1.032 54 1964 1.152 54 1965 1.094 54 1966 0.971 54 1967 1.073 54 1968 1.077 54 1969 1.093 54 1970 0.933 54 1971 1.076 54 1972 0.88 54 1973 1.036 54 1974 1.101 54 1975 1.094 54 1976 0.951 54 1977 0.408 54 1978 1.247 54 1979 0.995 54 1980 1.192 54 1981 1.009 54 1982 1.239 54 1983 1.075 54 1984 1.112 54 1985 1.078 54 1986 1.137 54 1987 0.872 54 1988 1.111 54 1989 0.861 53 1990 0.648 53 1991 1.066 53