# 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/ca716-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ca716-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ca716.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 0.709 1 1276 0.836 1 1277 0.783 1 1278 0.731 1 1279 0.711 1 1280 0.732 1 1281 0.595 1 1282 0.691 1 1283 0.713 1 1284 0.756 1 1285 0.735 1 1286 0.682 1 1287 0.597 1 1288 0.758 1 1289 0.705 1 1290 0.76 1 1291 0.739 1 1292 0.729 1 1293 0.74 1 1294 0.687 1 1295 0.687 1 1296 0.601 1 1297 0.526 1 1298 0.667 1 1299 0.548 1 1300 0.773 2 1301 0.811 2 1302 0.812 2 1303 0.965 2 1304 1.108 2 1305 1.137 2 1306 1.258 2 1307 1.352 2 1308 1.397 2 1309 1.34 2 1310 1.461 2 1311 1.45 2 1312 1.428 2 1313 1.517 2 1314 1.74 2 1315 1.364 2 1316 1.596 2 1317 1.532 2 1318 1.581 2 1319 1.439 2 1320 1.178 2 1321 1.167 2 1322 1.451 2 1323 1.341 2 1324 1.487 2 1325 1.258 2 1326 1.215 2 1327 1.422 2 1328 1.186 2 1329 1.28 2 1330 1.413 2 1331 1.397 2 1332 1.145 2 1333 1.296 2 1334 1.348 2 1335 1.268 2 1336 1.35 2 1337 1.191 2 1338 1.142 2 1339 1.013 2 1340 1.083 2 1341 1.049 2 1342 0.894 2 1343 1.075 2 1344 1.149 2 1345 1.222 2 1346 1.197 2 1347 1.086 2 1348 1.074 2 1349 1.29 2 1350 1.056 2 1351 0.843 2 1352 0.953 2 1353 1.125 2 1354 1.2 2 1355 1.195 2 1356 1.332 2 1357 1.1 2 1358 0.852 2 1359 0.881 2 1360 0.937 2 1361 0.951 2 1362 0.878 2 1363 0.911 2 1364 1.024 2 1365 0.754 2 1366 0.893 2 1367 0.908 2 1368 0.899 2 1369 0.861 2 1370 0.804 2 1371 0.82 2 1372 0.887 2 1373 0.906 2 1374 0.89 2 1375 0.844 2 1376 0.816 2 1377 0.689 2 1378 0.843 2 1379 0.804 2 1380 0.802 2 1381 0.841 2 1382 0.763 2 1383 0.823 2 1384 0.805 2 1385 0.821 2 1386 0.855 2 1387 0.812 2 1388 0.693 2 1389 0.877 2 1390 0.571 2 1391 0.726 2 1392 0.72 2 1393 0.707 2 1394 0.726 2 1395 0.752 2 1396 0.767 2 1397 0.828 2 1398 0.767 2 1399 0.804 2 1400 0.678 2 1401 0.857 2 1402 0.585 2 1403 0.759 2 1404 0.901 2 1405 0.904 2 1406 0.723 2 1407 0.854 2 1408 0.783 2 1409 0.768 2 1410 0.507 2 1411 0.682 2 1412 0.731 2 1413 0.488 2 1414 0.672 2 1415 0.717 2 1416 0.812 2 1417 0.772 2 1418 0.954 2 1419 0.845 2 1420 0.977 2 1421 0.912 2 1422 0.808 2 1423 0.818 2 1424 0.91 3 1425 0.817 3 1426 0.724 3 1427 0.801 3 1428 0.657 3 1429 0.808 3 1430 0.692 3 1431 0.826 3 1432 0.866 3 1433 0.81 3 1434 0.86 3 1435 0.842 4 1436 0.876 4 1437 0.932 4 1438 0.871 4 1439 0.783 4 1440 0.868 4 1441 0.817 4 1442 0.742 4 1443 0.811 4 1444 0.674 4 1445 0.731 4 1446 0.842 4 1447 0.963 4 1448 0.95 4 1449 0.973 4 1450 1.062 4 1451 0.955 4 1452 1.044 4 1453 1.075 4 1454 1.108 4 1455 1.169 4 1456 0.916 4 1457 1.074 4 1458 1.006 4 1459 1.082 4 1460 1.15 4 1461 0.947 4 1462 0.971 4 1463 1.048 4 1464 0.961 4 1465 0.999 4 1466 1.039 4 1467 0.983 4 1468 0.863 4 1469 0.869 4 1470 0.966 4 1471 0.961 4 1472 0.92 4 1473 0.951 4 1474 1.013 4 1475 1.095 4 1476 0.944 4 1477 1.076 4 1478 1.173 4 1479 1.026 4 1480 1.218 4 1481 1.055 4 1482 1.163 4 1483 1.082 4 1484 1.143 4 1485 1.043 4 1486 1.052 4 1487 1.089 4 1488 0.956 4 1489 1.058 4 1490 0.912 4 1491 0.943 4 1492 0.953 4 1493 0.911 4 1494 1.022 4 1495 1.033 4 1496 1.062 4 1497 0.833 4 1498 1.009 4 1499 1.013 4 1500 0.929 4 1501 0.967 4 1502 1.056 4 1503 1.071 4 1504 1.167 4 1505 1.043 4 1506 1.106 4 1507 1.056 4 1508 1.044 4 1509 1.118 4 1510 0.982 4 1511 0.889 4 1512 1.023 4 1513 1.128 4 1514 0.988 4 1515 1.029 4 1516 0.946 4 1517 1.11 4 1518 0.966 4 1519 0.933 4 1520 1.008 4 1521 1.121 4 1522 1.032 4 1523 1.152 4 1524 1.138 4 1525 1.201 4 1526 1.046 4 1527 1.194 4 1528 1.056 4 1529 0.899 4 1530 1.047 4 1531 1.17 4 1532 0.817 4 1533 0.849 4 1534 0.963 4 1535 0.93 4 1536 1.147 4 1537 1.015 4 1538 1.047 4 1539 1.239 4 1540 1.163 4 1541 1.091 4 1542 1.271 4 1543 1.073 4 1544 1.183 4 1545 1.284 4 1546 1.252 4 1547 1.302 4 1548 0.93 4 1549 1.127 4 1550 1.232 4 1551 1.273 4 1552 1.107 4 1553 1.208 4 1554 1.135 4 1555 1.094 4 1556 1.182 5 1557 1.265 5 1558 1.196 5 1559 1.07 5 1560 1.182 5 1561 1.209 5 1562 1.136 5 1563 1.118 5 1564 1.058 5 1565 1.232 5 1566 0.975 5 1567 1.085 5 1568 1.145 5 1569 1.039 5 1570 0.94 5 1571 0.656 5 1572 0.89 5 1573 1.119 5 1574 0.896 5 1575 1.179 5 1576 1.047 5 1577 1.249 5 1578 1.067 5 1579 0.435 5 1580 -0.072 5 1581 0.611 5 1582 0.585 5 1583 1.218 5 1584 1.203 5 1585 0.973 5 1586 1.089 5 1587 1.205 6 1588 1.024 6 1589 1.073 6 1590 0.916 7 1591 1.143 7 1592 0.91 7 1593 1.203 7 1594 1.162 7 1595 1.069 7 1596 1.061 7 1597 0.994 7 1598 0.969 7 1599 0.946 7 1600 0.785 7 1601 0.902 7 1602 1.045 8 1603 0.934 8 1604 0.901 8 1605 1.038 9 1606 0.759 9 1607 0.87 9 1608 0.996 9 1609 0.908 9 1610 0.993 9 1611 1.099 9 1612 0.941 9 1613 0.82 9 1614 1.038 9 1615 1.022 9 1616 0.963 9 1617 1.043 10 1618 1.071 10 1619 1.006 11 1620 1.125 12 1621 0.886 12 1622 0.887 12 1623 1.027 12 1624 0.969 12 1625 0.992 12 1626 0.992 12 1627 0.905 12 1628 1.035 12 1629 0.853 12 1630 0.966 12 1631 0.84 12 1632 0.191 12 1633 0.814 12 1634 1.014 12 1635 1.132 12 1636 1.172 12 1637 0.873 12 1638 0.942 12 1639 1.077 12 1640 1.107 12 1641 1.094 13 1642 1.013 13 1643 1.034 13 1644 1.008 13 1645 1.076 13 1646 0.913 13 1647 1.023 13 1648 1.031 13 1649 0.958 13 1650 0.867 13 1651 0.944 13 1652 0.907 13 1653 0.665 13 1654 0.613 13 1655 0.841 13 1656 0.846 13 1657 0.861 13 1658 1.058 13 1659 1.075 13 1660 1.118 13 1661 1.151 13 1662 1.096 13 1663 1.096 13 1664 1.098 13 1665 1.133 13 1666 1.163 13 1667 1.077 14 1668 1.273 14 1669 1.138 15 1670 1.218 15 1671 1.195 15 1672 1.167 15 1673 1.204 15 1674 1.188 16 1675 1.155 16 1676 0.873 16 1677 0.983 16 1678 1.082 16 1679 1.086 16 1680 1.06 17 1681 1.035 17 1682 1.036 17 1683 1.075 17 1684 1.096 17 1685 1.086 17 1686 0.9 17 1687 1.001 17 1688 1.183 17 1689 1.035 17 1690 1.011 17 1691 0.9 17 1692 1.11 17 1693 0.998 17 1694 1.036 17 1695 1.177 17 1696 1.004 17 1697 1.004 17 1698 0.933 17 1699 0.958 17 1700 0.895 18 1701 0.954 18 1702 1.019 18 1703 0.844 18 1704 0.969 18 1705 1.011 18 1706 0.792 18 1707 0.79 18 1708 0.84 18 1709 1.074 18 1710 0.992 18 1711 0.947 19 1712 0.971 20 1713 0.99 21 1714 0.919 21 1715 0.875 21 1716 0.912 21 1717 1.029 21 1718 0.854 21 1719 0.882 22 1720 0.912 22 1721 0.619 23 1722 0.668 23 1723 0.888 23 1724 0.87 23 1725 1.022 23 1726 1.014 23 1727 0.935 23 1728 0.922 23 1729 0.357 23 1730 1.001 23 1731 0.977 23 1732 1.057 23 1733 1.093 23 1734 1.149 24 1735 1.264 24 1736 0.946 24 1737 1.197 24 1738 1.418 24 1739 0.933 24 1740 1.137 24 1741 1.106 24 1742 1.14 24 1743 0.963 24 1744 1.068 24 1745 1.107 24 1746 0.969 24 1747 1.068 25 1748 0.875 25 1749 0.836 25 1750 0.814 26 1751 0.818 26 1752 0.904 26 1753 0.803 27 1754 0.809 27 1755 0.708 27 1756 0.564 27 1757 0.509 27 1758 0.764 27 1759 0.663 27 1760 0.815 27 1761 0.953 27 1762 0.76 27 1763 0.717 28 1764 0.824 29 1765 0.586 29 1766 0.854 29 1767 0.839 29 1768 0.929 29 1769 0.915 29 1770 1.169 30 1771 1.193 31 1772 1.362 33 1773 1.208 33 1774 1.307 34 1775 1.252 34 1776 1.109 35 1777 0.307 35 1778 0.791 35 1779 1.089 35 1780 1.19 35 1781 1.085 35 1782 0.91 35 1783 0.743 35 1784 1.169 35 1785 1.108 35 1786 1.023 35 1787 0.847 35 1788 0.913 35 1789 0.938 35 1790 0.977 36 1791 0.834 37 1792 0.901 37 1793 0.885 37 1794 0.88 37 1795 0.513 38 1796 0.825 38 1797 1.16 38 1798 1.24 38 1799 1.188 38 1800 1.212 40 1801 1.157 40 1802 1.23 41 1803 1.167 41 1804 1.047 43 1805 1.012 43 1806 0.984 43 1807 0.957 43 1808 0.927 43 1809 0.95 43 1810 1.031 43 1811 0.996 43 1812 0.82 43 1813 0.92 43 1814 1.157 43 1815 1.003 43 1816 1.022 44 1817 0.954 44 1818 1.066 44 1819 1.007 44 1820 1.038 44 1821 1.013 45 1822 0.967 45 1823 0.889 45 1824 0.869 43 1825 1.189 43 1826 1.24 44 1827 1.099 45 1828 1.187 45 1829 1.073 45 1830 1.166 45 1831 1.279 45 1832 1.381 45 1833 1.097 45 1834 1.095 45 1835 0.904 45 1836 0.938 45 1837 1.036 45 1838 0.997 45 1839 0.944 46 1840 0.882 46 1841 0.547 47 1842 0.993 47 1843 0.996 47 1844 0.986 47 1845 1.174 47 1846 1.074 48 1847 1.256 48 1848 1.051 48 1849 1.158 48 1850 1.152 49 1851 0.978 50 1852 1.08 50 1853 1.075 50 1854 1.016 50 1855 1.011 50 1856 0.947 51 1857 0.912 51 1858 0.762 51 1859 0.787 51 1860 0.814 51 1861 0.78 51 1862 0.719 51 1863 0.835 51 1864 0.602 52 1865 0.781 52 1866 0.986 52 1867 0.983 52 1868 0.879 52 1869 0.916 52 1870 0.951 52 1871 0.882 52 1872 0.952 52 1873 1.004 53 1874 0.771 53 1875 0.918 53 1876 0.908 53 1877 0.7 53 1878 0.946 53 1879 0.968 53 1880 0.968 53 1881 1.203 53 1882 1.049 53 1883 1.152 53 1884 1.233 53 1885 1.677 53 1886 1.266 54 1887 1.295 54 1888 1.438 54 1889 1.347 54 1890 1.194 54 1891 1.036 54 1892 1.033 54 1893 1.09 54 1894 1.192 54 1895 1.084 54 1896 1.034 54 1897 1.037 54 1898 0.842 54 1899 0.877 54 1900 1.015 54 1901 1.034 54 1902 0.891 54 1903 1.038 54 1904 0.954 54 1905 0.859 54 1906 0.927 54 1907 1.009 54 1908 0.977 54 1909 0.818 54 1910 0.927 54 1911 0.828 54 1912 0.812 54 1913 0.978 54 1914 0.78 54 1915 0.844 54 1916 1.006 54 1917 0.856 54 1918 0.724 54 1919 0.824 54 1920 0.844 54 1921 0.976 54 1922 0.905 54 1923 0.933 54 1924 0.396 54 1925 0.889 54 1926 0.739 54 1927 0.821 54 1928 0.914 54 1929 0.869 54 1930 0.806 54 1931 0.56 54 1932 0.738 54 1933 0.913 54 1934 0.832 54 1935 0.858 54 1936 1.032 54 1937 0.849 54 1938 0.944 54 1939 0.868 54 1940 0.865 54 1941 1.002 54 1942 0.98 54 1943 0.912 54 1944 0.928 54 1945 0.996 54 1946 1.039 54 1947 0.881 54 1948 0.873 54 1949 0.804 54 1950 0.89 54 1951 1.016 54 1952 1.064 54 1953 1.023 54 1954 1.125 54 1955 0.971 54 1956 1.132 54 1957 1.008 54 1958 1.13 54 1959 0.68 54 1960 0.79 54 1961 0.555 54 1962 0.847 54 1963 0.912 54 1964 1.088 54 1965 1.138 54 1966 1.025 54 1967 1.148 54 1968 1.152 54 1969 1.215 54 1970 1.079 54 1971 1.161 54 1972 0.927 54 1973 1.052 54 1974 1.145 54 1975 1.193 54 1976 1.046 54 1977 0.395 54 1978 1.026 54 1979 0.98 54 1980 1.199 54 1981 1.083 54 1982 1.355 54 1983 1.272 54 1984 1.323 54 1985 1.291 54 1986 1.355 54 1987 1.058 54 1988 1.225 54 1989 1.012 53 1990 0.657 53 1991 0.908 53