# Hughes - Tuolumne Grove - SEGI - ITRDB CA704 #---------------------------------------------------- # 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/32173 # 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-32173.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/ca704-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ca704-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ca704.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 - Tuolumne Grove - SEGI - ITRDB CA704 #-------------------- # 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: Tuolumne Grove # Location: California # Northernmost_Latitude: 37.7667 # Southernmost_Latitude: 37.7667 # Easternmost_Longitude: -119.8 # Westernmost_Longitude: -119.8 # Elevation_m: 1700 #-------------------- # Data_Collection # Collection_Name: CA704 # First_Year: 1171 # 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 1171 1.044 1 1172 0.919 1 1173 1.044 1 1174 0.977 1 1175 1.163 1 1176 1.032 1 1177 1.116 1 1178 1.127 1 1179 1.116 1 1180 0.975 1 1181 1.081 1 1182 1.153 1 1183 1.081 1 1184 1.022 1 1185 1.195 1 1186 1.215 1 1187 1.054 1 1188 0.782 1 1189 0.73 1 1190 0.891 1 1191 0.991 1 1192 1.055 1 1193 1.017 1 1194 0.92 1 1195 0.994 1 1196 0.906 1 1197 0.998 1 1198 1.036 1 1199 1.138 1 1200 1.063 1 1201 0.983 1 1202 0.994 1 1203 1.046 1 1204 1.108 1 1205 1.046 1 1206 1.113 1 1207 1.11 1 1208 1.108 1 1209 1.171 1 1210 1.103 1 1211 1.077 1 1212 1.051 1 1213 1.256 1 1214 1.192 1 1215 1.114 1 1216 1.23 1 1217 1.085 1 1218 1.178 1 1219 1.132 1 1220 1 1 1221 0.973 1 1222 0.936 1 1223 1.04 1 1224 1.022 1 1225 0.898 1 1226 0.904 1 1227 0.945 1 1228 0.922 1 1229 0.914 1 1230 0.827 1 1231 0.749 1 1232 0.854 1 1233 0.796 1 1234 0.847 1 1235 0.754 1 1236 0.745 1 1237 0.801 1 1238 0.777 1 1239 0.773 1 1240 0.785 1 1241 0.735 1 1242 0.935 1 1243 0.921 1 1244 0.897 1 1245 0.888 1 1246 0.802 1 1247 0.834 1 1248 0.794 1 1249 0.754 1 1250 0.833 1 1251 0.818 1 1252 0.877 1 1253 0.836 1 1254 0.78 1 1255 0.912 1 1256 0.877 1 1257 0.983 1 1258 0.885 1 1259 0.849 1 1260 0.935 1 1261 1.069 1 1262 1.161 1 1263 1.12 1 1264 1.025 1 1265 0.882 1 1266 0.937 1 1267 0.949 1 1268 0.988 1 1269 0.968 1 1270 0.948 1 1271 0.992 1 1272 0.994 1 1273 1.022 1 1274 0.925 1 1275 1.041 1 1276 1.184 1 1277 1.17 1 1278 1.215 1 1279 0.981 1 1280 0.872 1 1281 1.016 1 1282 1.04 1 1283 1.025 1 1284 1.031 1 1285 0.888 1 1286 0.962 1 1287 0.891 1 1288 0.892 1 1289 1.01 1 1290 1.191 1 1291 1.215 1 1292 0.952 1 1293 0.88 1 1294 0.921 1 1295 0.956 1 1296 0.793 1 1297 1.043 1 1298 1.107 1 1299 1.023 1 1300 1.03 1 1301 1.111 1 1302 1.113 1 1303 1.131 1 1304 1.047 1 1305 1.117 1 1306 1.159 1 1307 0.976 1 1308 0.988 1 1309 1.111 1 1310 1.008 1 1311 1.062 1 1312 1.057 1 1313 1.222 1 1314 1.066 1 1315 0.939 1 1316 1.274 1 1317 1.247 1 1318 1.119 1 1319 1.079 1 1320 1.098 1 1321 1.1 1 1322 1.107 1 1323 1.079 1 1324 1.033 1 1325 0.939 1 1326 0.869 1 1327 0.936 1 1328 0.889 1 1329 1.04 1 1330 0.994 1 1331 1.073 1 1332 1.002 1 1333 0.919 1 1334 1.042 1 1335 1.061 1 1336 0.88 1 1337 0.808 1 1338 0.846 1 1339 0.786 1 1340 1.204 1 1341 1.182 1 1342 1.06 1 1343 1.179 1 1344 1.15 1 1345 1.146 1 1346 1.023 1 1347 1.137 1 1348 1.076 1 1349 1.122 1 1350 1.13 1 1351 1.182 1 1352 1.077 1 1353 1.11 1 1354 1.03 1 1355 1.07 1 1356 0.905 2 1357 1.241 2 1358 1.14 2 1359 1.079 2 1360 0.996 2 1361 0.988 2 1362 0.982 2 1363 1.114 2 1364 1.093 2 1365 1.283 2 1366 1.267 2 1367 1.114 2 1368 0.896 2 1369 0.84 2 1370 0.831 2 1371 0.916 2 1372 0.901 2 1373 0.782 2 1374 0.827 2 1375 0.851 2 1376 0.86 2 1377 0.884 2 1378 0.967 2 1379 0.961 2 1380 1.132 2 1381 1.114 2 1382 0.845 2 1383 0.976 2 1384 0.769 2 1385 0.819 2 1386 0.813 2 1387 0.755 2 1388 0.798 2 1389 0.909 2 1390 0.818 2 1391 0.968 2 1392 0.917 2 1393 0.953 2 1394 1.046 2 1395 0.952 2 1396 0.922 2 1397 1.016 2 1398 1.048 2 1399 0.995 2 1400 1.059 2 1401 1.083 2 1402 1.134 2 1403 1.144 2 1404 1.096 2 1405 0.953 2 1406 0.991 2 1407 0.938 2 1408 1.173 2 1409 1.116 2 1410 1.185 2 1411 1.177 2 1412 1.062 2 1413 0.858 2 1414 0.97 2 1415 1.126 2 1416 1.07 2 1417 1.049 2 1418 1.015 2 1419 0.803 2 1420 0.783 2 1421 1.05 2 1422 1.299 2 1423 1.19 2 1424 1.405 2 1425 1.153 2 1426 1.025 2 1427 1.066 2 1428 1.078 2 1429 1.093 2 1430 1.31 2 1431 1.092 2 1432 1.137 2 1433 1.186 2 1434 1.084 2 1435 1.032 2 1436 1.267 2 1437 1.176 2 1438 1.196 2 1439 1.04 2 1440 1.096 2 1441 1.242 2 1442 1.027 2 1443 0.886 2 1444 0.856 2 1445 0.971 2 1446 0.968 2 1447 0.903 2 1448 0.892 2 1449 0.901 2 1450 0.914 2 1451 0.86 2 1452 0.909 2 1453 1.079 2 1454 0.978 2 1455 0.903 2 1456 0.977 2 1457 0.954 2 1458 0.952 2 1459 0.787 2 1460 0.895 2 1461 0.87 2 1462 0.863 2 1463 0.851 2 1464 0.839 2 1465 0.99 2 1466 0.936 2 1467 0.952 2 1468 0.819 2 1469 0.918 2 1470 0.917 2 1471 0.927 2 1472 0.826 2 1473 0.932 2 1474 1.154 2 1475 1.044 2 1476 0.863 2 1477 0.936 2 1478 0.819 2 1479 0.774 2 1480 0.853 2 1481 0.971 2 1482 1 2 1483 0.974 2 1484 1.047 2 1485 0.941 2 1486 0.935 2 1487 0.927 2 1488 0.915 2 1489 0.894 2 1490 0.91 2 1491 1.055 2 1492 0.916 2 1493 1.065 2 1494 0.995 2 1495 1.061 2 1496 1.222 2 1497 0.904 2 1498 0.964 2 1499 0.907 2 1500 0.933 3 1501 1.053 3 1502 1.147 3 1503 1.151 3 1504 1.171 3 1505 1.009 3 1506 1.09 3 1507 1.06 3 1508 1.111 3 1509 1.146 3 1510 1.073 3 1511 1.02 3 1512 1.017 3 1513 1.066 3 1514 1.041 3 1515 0.908 3 1516 0.87 3 1517 1.101 3 1518 0.968 3 1519 1.014 3 1520 0.962 3 1521 0.823 3 1522 0.88 3 1523 0.922 3 1524 0.759 3 1525 0.814 4 1526 0.842 4 1527 0.8 4 1528 0.826 4 1529 0.727 4 1530 0.896 4 1531 0.893 4 1532 0.881 4 1533 0.955 4 1534 1.152 4 1535 0.945 4 1536 1.071 4 1537 0.983 4 1538 1.153 4 1539 1.153 4 1540 0.998 4 1541 0.795 4 1542 1.016 4 1543 1.05 4 1544 0.998 4 1545 0.946 4 1546 1.049 4 1547 1.149 4 1548 0.992 4 1549 1.215 5 1550 1.125 5 1551 1.009 5 1552 0.961 5 1553 1.124 5 1554 0.957 5 1555 0.945 5 1556 0.99 5 1557 1.068 5 1558 1.092 5 1559 0.989 5 1560 1.161 5 1561 1.122 5 1562 1.043 5 1563 1.126 5 1564 1.215 5 1565 1.058 5 1566 1.068 5 1567 1.083 5 1568 1.183 5 1569 0.991 5 1570 0.957 5 1571 0.833 5 1572 1.122 5 1573 1.024 5 1574 1.084 5 1575 0.907 5 1576 0.994 5 1577 1.149 5 1578 1.068 5 1579 0.878 5 1580 0.369 5 1581 0.957 5 1582 1.052 5 1583 0.968 5 1584 0.84 5 1585 1.109 5 1586 1.115 5 1587 1.092 5 1588 1.002 5 1589 1.058 5 1590 0.946 5 1591 1.092 5 1592 1.023 5 1593 1.074 5 1594 0.978 5 1595 0.806 6 1596 0.951 6 1597 1.101 6 1598 0.919 6 1599 1.029 6 1600 0.88 6 1601 1.028 6 1602 0.918 6 1603 0.856 6 1604 0.973 6 1605 0.949 6 1606 1.02 6 1607 0.785 6 1608 0.933 6 1609 0.896 6 1610 1.044 7 1611 1.132 7 1612 0.925 7 1613 0.892 7 1614 1.072 7 1615 1.1 7 1616 1.118 7 1617 1.208 7 1618 1.247 7 1619 1.086 7 1620 1.243 7 1621 1.128 6 1622 1.052 6 1623 0.992 6 1624 1.074 6 1625 1.075 6 1626 0.893 6 1627 0.861 6 1628 0.919 6 1629 0.949 6 1630 1.017 6 1631 1.084 6 1632 0.784 6 1633 0.998 6 1634 0.965 6 1635 1.091 6 1636 1.093 6 1637 0.996 6 1638 1.121 6 1639 0.849 5 1640 0.903 5 1641 0.978 5 1642 0.958 5 1643 0.695 5 1644 0.958 5 1645 0.832 5 1646 0.89 5 1647 0.922 6 1648 0.943 6 1649 0.854 6 1650 0.83 6 1651 0.866 6 1652 0.975 6 1653 0.957 6 1654 0.901 6 1655 0.723 6 1656 1.057 6 1657 0.886 6 1658 1.079 6 1659 1.045 6 1660 1.018 6 1661 1.19 6 1662 1.069 6 1663 1.149 6 1664 1.023 6 1665 1.018 6 1666 1.122 6 1667 0.821 6 1668 1.005 6 1669 0.887 6 1670 0.86 6 1671 0.94 6 1672 1.04 6 1673 0.984 6 1674 1.088 6 1675 0.941 6 1676 0.948 7 1677 1.089 7 1678 1.161 7 1679 1.029 7 1680 0.974 8 1681 1.119 9 1682 0.897 9 1683 1.013 9 1684 0.979 9 1685 1.058 9 1686 0.863 9 1687 1.083 9 1688 1 9 1689 1.009 9 1690 0.995 9 1691 0.867 9 1692 1.124 9 1693 1.138 9 1694 1.137 9 1695 1.118 9 1696 0.999 9 1697 1.023 9 1698 0.899 9 1699 0.988 9 1700 0.938 10 1701 0.903 10 1702 1.075 10 1703 0.761 10 1704 1.028 10 1705 1.088 10 1706 0.897 10 1707 0.969 10 1708 0.97 10 1709 1.031 11 1710 1.007 11 1711 0.771 11 1712 0.896 11 1713 0.986 11 1714 0.933 11 1715 0.871 11 1716 0.943 11 1717 0.959 11 1718 0.9 11 1719 0.847 12 1720 0.961 12 1721 0.881 12 1722 0.909 12 1723 0.89 12 1724 0.927 12 1725 1.092 12 1726 1.129 12 1727 1.048 12 1728 0.926 12 1729 0.863 12 1730 1.058 12 1731 1.088 12 1732 1.065 12 1733 0.901 12 1734 1.045 12 1735 1.126 12 1736 1.175 13 1737 1.028 13 1738 1.056 13 1739 1.031 13 1740 1.042 13 1741 0.954 14 1742 1.017 14 1743 1.027 14 1744 1.034 15 1745 1.011 15 1746 0.934 15 1747 0.926 15 1748 0.82 15 1749 0.905 15 1750 0.882 16 1751 0.815 16 1752 0.939 16 1753 0.941 16 1754 0.969 16 1755 0.953 16 1756 0.812 16 1757 0.869 16 1758 0.793 16 1759 1.016 16 1760 1.039 16 1761 1.177 16 1762 1.048 16 1763 1.032 16 1764 1.014 16 1765 0.914 16 1766 1.073 16 1767 0.97 16 1768 1.092 16 1769 0.911 16 1770 1.047 16 1771 0.866 16 1772 1.041 16 1773 0.939 16 1774 0.983 16 1775 0.793 16 1776 0.852 16 1777 0.569 16 1778 0.778 16 1779 0.857 16 1780 1.068 16 1781 0.995 16 1782 1.016 16 1783 0.986 16 1784 1.155 16 1785 1.175 16 1786 1.215 17 1787 1.104 17 1788 1.199 18 1789 1.324 18 1790 1.351 18 1791 1.166 19 1792 1.213 19 1793 1.124 19 1794 1.013 19 1795 0.871 20 1796 0.832 20 1797 1.088 21 1798 1.147 21 1799 1.274 21 1800 1.234 23 1801 1.24 23 1802 1.186 23 1803 1.128 23 1804 1.112 23 1805 1.009 24 1806 0.983 24 1807 0.947 24 1808 1.072 25 1809 1.122 25 1810 1.103 25 1811 1.092 25 1812 0.92 25 1813 0.802 25 1814 1.026 25 1815 0.839 25 1816 1.016 25 1817 0.901 25 1818 0.877 25 1819 0.849 25 1820 0.983 25 1821 0.872 25 1822 0.973 25 1823 0.948 25 1824 0.888 25 1825 1.008 25 1826 1.057 26 1827 0.861 26 1828 0.969 26 1829 0.8 26 1830 0.742 26 1831 1.095 26 1832 1.437 26 1833 1.234 25 1834 1.217 25 1835 1.229 25 1836 1.135 25 1837 1.104 25 1838 0.997 25 1839 0.971 25 1840 0.923 25 1841 0.689 26 1842 0.946 26 1843 0.843 26 1844 0.878 26 1845 1.006 26 1846 0.827 26 1847 0.929 26 1848 0.816 26 1849 0.837 26 1850 0.905 26 1851 0.832 26 1852 0.842 26 1853 0.991 26 1854 0.916 26 1855 0.899 26 1856 0.833 27 1857 0.872 27 1858 0.79 27 1859 0.753 27 1860 0.807 27 1861 0.848 27 1862 0.768 27 1863 0.859 27 1864 0.813 28 1865 0.715 28 1866 0.81 28 1867 0.929 28 1868 0.947 28 1869 0.917 28 1870 0.874 28 1871 0.882 28 1872 0.971 28 1873 1.023 28 1874 0.842 28 1875 0.982 28 1876 0.909 28 1877 1.093 28 1878 1.028 27 1879 1.115 27 1880 1.049 27 1881 1.289 27 1882 1.108 27 1883 1.135 27 1884 1.23 28 1885 1.439 28 1886 1.101 29 1887 1.029 29 1888 1.059 29 1889 1.094 29 1890 1.172 30 1891 1.236 30 1892 1.012 31 1893 1.306 31 1894 1.402 31 1895 1.229 31 1896 1.129 31 1897 1.128 31 1898 0.904 31 1899 0.779 31 1900 1.105 31 1901 1.135 31 1902 0.862 31 1903 0.987 31 1904 1.052 31 1905 1.048 31 1906 0.987 31 1907 1.131 31 1908 1.138 31 1909 0.74 31 1910 0.813 31 1911 0.835 31 1912 0.837 31 1913 0.789 31 1914 0.778 31 1915 0.728 31 1916 0.908 31 1917 0.919 31 1918 1.004 31 1919 0.934 29 1920 0.772 29 1921 0.983 31 1922 0.873 31 1923 1.019 31 1924 0.696 31 1925 0.947 31 1926 1.014 31 1927 0.955 31 1928 1.043 31 1929 0.918 31 1930 0.882 31 1931 1.023 31 1932 0.661 31 1933 0.757 31 1934 0.982 31 1935 0.822 31 1936 1.069 31 1937 0.903 31 1938 1.241 31 1939 1.14 31 1940 1.035 31 1941 1.174 31 1942 1.291 31 1943 1.302 31 1944 1.085 31 1945 1.14 31 1946 1.366 31 1947 1.273 31 1948 1.199 31 1949 0.888 31 1950 0.902 31 1951 1.096 31 1952 1.077 31 1953 1.129 31 1954 1.186 31 1955 0.942 31 1956 0.976 31 1957 0.882 31 1958 1.092 31 1959 0.838 31 1960 0.808 31 1961 0.934 31 1962 0.773 31 1963 0.852 31 1964 1.088 31 1965 1.012 31 1966 0.878 31 1967 0.886 31 1968 0.885 31 1969 0.918 31 1970 0.839 31 1971 0.846 31 1972 0.945 31 1973 0.869 31 1974 0.997 31 1975 0.891 31 1976 0.978 31 1977 0.684 31 1978 0.937 31 1979 0.812 31 1980 1.078 31 1981 0.97 31 1982 1.24 31 1983 1.108 30 1984 1.122 30 1985 1.058 30 1986 1.146 30 1987 1.013 30 1988 1.011 30 1989 0.83 30 1990 1.038 30 1991 0.781 30