# Talos Dome 800 Year Antarctic Ice Core Snow Accumulation Data #----------------------------------------------------------------------- # 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/22712 # Description: NOAA Landing Page # Online_Resource: https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/talos/talos2002accum.txt # Description: NOAA location of the template # # Original_Source_URL: # Description: # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Ice Core # # Dataset DOI: # # Parameter_Keywords: accumulation #-------------------- # Contribution_Date # Date: 2017-09-22 #-------------------- # File_Last_Modified_Date # Date: 2017-09-22 #-------------------- # Title # Study_Name: Talos Dome 800 Year Antarctic Ice Core Snow Accumulation Data #-------------------- # Investigators # Investigators: Stenni, B.; Frezzotti, M. #-------------------- # Description_Notes_and_Keywords # Description: Snow accumulation data from the Talos Dome Antarctic ice core. # No thinning function applied. Ice Thickness 1570 m. Upstream glaciology condition from field data or/and satellite survey (DEM, Landsat etc.): si. # Upstream glaciology influence the SMB stratigraphy: No #-------------------- # Publication # Authors: B. Stenni, M. Proposito, R. Gragnani, O. Flora, J. Jouzel, S. Falourd, and M. Frezzotti # Published_Date_or_Year: 2002-05-16 # Published_Title: Eight centuries of volcanic signal and climate change at Talos Dome (East Antarctica) # Journal_Name: Journal of Geophysical Research: Atmospheres # Volume: 107 # Edition: # Issue: D9 # Pages: ACL 3-1 - ACL 3-13 # Report_Number: # DOI: 10.1029/2000JD000317 # Online_Resource: http://onlinelibrary.wiley.com/wol1/doi/10.1029/2000JD000317/abstract # Full_Citation: # Abstract: During the 1996 Programma Nazionale di Ricerche in Antartide-International Trans-Antarctic Scientific Expedition traverse, two firn cores were retrieved from the Talos Dome area (East Antarctica) at elevations of 2316 m (TD, 89 m long) and 2246 m (ST556, 19 m long). Cores were dated by using seasonal variations in non-sea-salt (nss) SO42- concentrations coupled with the recognition of tritium marker level (1965-1966) and nss SO42- spikes due to the most important volcanic events in the past (Pinatubo 1991, Agung 1963, Krakatoa 1883, Tambora 1815, Kuwae 1452, Unknown 1259). The number of annual layers recognized in the TD and ST556 cores was 779 and 97, respectively. The dD record obtained from the TD core has been compared with other East Antarctic isotope ice core records (Dome C EPICA, South Pole, Taylor Dome). These records suggest cooler climate conditions between the middle of 16th and the beginning of 19th centuries, which might be related to the Little Ice Age (LIA) cold period. Because of the high degree of geographical variability, the strongest LIA cooling was not temporally synchronous over East Antarctica, and the analyzed records do not provide a coherent picture for East Antarctica. The accumulation rate record presented for the TD core shows a decrease during part of the LIA followed by an increment of about 11% in accumulation during the 20th century. At the ST556 site, the accumulation rate observed during the 20th century was quite stable. #------------------ # Publication # Authors: Massimo Frezzotti, Stefano Urbini, Marco Proposito, Claudio Scarchilli, Stefano Gandolfi # Published_Date_or_Year: 2007-06-13 # Published_Title: Spatial and temporal variability of surface mass balance near Talos Dome, East Antarctica # Journal_Name: Journal of Geophysical Research: Earth Surface # Volume: 112 # Edition: F02032 # Issue: F2 # Pages: # Report_Number: # DOI: 10.1029/2006JF000638 # Online_Resource: http://onlinelibrary.wiley.com/doi/10.1029/2006JF000638/abstract # Full_Citation: # Abstract: Predictions concerning Antarctica's contribution to sea level change have been hampered by poor knowledge of surface mass balance. Snow accumulation is the most direct climate indicator and has important implications for paleoclimatic reconstruction from ice cores. Snow accumulation measurements (stake, core, snow radar) taken along a 500-km transect crossing Talos Dome (East Antarctica) have been used to assess accumulation signals and the representativeness of ice core records. Stake readings show that accumulation hiatuses can occur at sites with accumulation rates below 120 kg m-2 yr-1. Differences between cores and stakes can lead to statistical misidentification of annual layers determined from seasonal signals at sites with accumulation rates below 200 kg m-2 yr-1 because of nondetection of higher and lower values. Achieving ±10% accuracy in the reconstruction of snow accumulation from single cores requires high accumulation (750 kg m-2 yr-1). Low-accumulation sites are representative if cumulative rates computed over several years are used to reach the 750 kg m-2 yr-1 threshold. Temporal variability of accumulation over the last two centuries shows no significant increase in accumulation. Wind-driven processes are a fundamental component of surface mass balance. Spatial variations in accumulation are well correlated with surface slope changes along the wind direction and may exceed 200 kg m-2 yr-1 within 1 km. Wind-driven sublimation rates are less than 50 kg m-2 yr-1 in plateau areas and up to 260 kg m-2 yr-1 in slope areas and account for 20-75% of precipitation, whereas depositional features are negligible in surface mass balance. #------------------ # Funding_Agency # Funding_Agency_Name: PNRA # Grant: #------------------ # Site_Information # Site_Name: Talos Dome # Location: Antarctica # Country: # Northernmost_Latitude: -72.77 # Southernmost_Latitude: -72.77 # Easternmost_Longitude: 159.08 # Westernmost_Longitude: 159.08 # Elevation: 2315 m #------------------ # Data_Collection # Collection_Name: Talos2002Accum # Earliest_Year: 1213 # Most_Recent_Year: 2010 # Time_Unit: AD # Core_Length: 89 # Notes: mean annual accumulation rate 80 mm w.e./year; 1997-2010 values from stake measurements #------------------ # 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) # ## age_AD age, , , AD, , , , ,N, ## accum accumulation rate, snow, , kg/m2/yr, annual, ice core, annual counting by (nssSO4 etc.),,N, # #---------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Values: # age_AD accum 2010 78 2009 45 2008 51 2007 52 2006 90 2005 52 2004 60 2003 62 2002 125 2001 80 2000 82 1999 82 1998 82 1997 82 1996 38 1995 155 1994 70 1993 94 1992 95 1991 118 1990 130 1989 95 1988 70 1987 140 1986 94 1985 43 1984 59 1983 74 1982 49 1981 63 1980 68 1979 108 1978 119 1977 38 1976 63 1975 82 1974 58 1973 41 1972 125 1971 79 1970 144 1969 58 1968 72 1967 119 1966 95 1965 90 1964 71 1963 172 1962 74 1961 29 1960 61 1959 101 1958 43 1957 64 1956 111 1955 107 1954 96 1953 64 1952 74 1951 80 1950 80 1949 79 1948 79 1947 161 1946 61 1945 92 1944 76 1943 147 1942 81 1941 130 1940 96 1939 79 1938 92 1937 92 1936 92 1935 113 1934 119 1933 65 1932 97 1931 146 1930 65 1929 116 1928 47 1927 153 1926 86 1925 83 1924 51 1923 103 1922 88 1921 154 1920 94 1919 51 1918 87 1917 48 1916 48 1915 79 1914 67 1913 111 1912 131 1911 97 1910 97 1909 65 1908 89 1907 99 1906 104 1905 103 1904 68 1903 51 1902 71 1901 67 1900 118 1899 56 1898 84 1897 87 1896 67 1895 67 1894 50 1893 50 1892 67 1891 70 1890 147 1889 51 1888 68 1887 51 1886 54 1885 60 1884 123 1883 53 1882 88 1881 53 1880 59 1879 59 1878 53 1877 53 1876 35 1875 82 1874 70 1873 104 1872 99 1871 110 1870 87 1869 52 1868 84 1867 55 1866 87 1865 75 1864 70 1863 70 1862 148 1861 78 1860 70 1859 122 1858 96 1857 35 1856 76 1855 72 1854 90 1853 90 1852 96 1851 111 1850 110 1849 73 1848 109 1847 35 1846 164 1845 104 1844 46 1843 72 1842 108 1841 116 1840 50 1839 67 1838 84 1837 84 1836 54 1835 114 1834 61 1833 73 1832 110 1831 55 1830 72 1829 110 1828 74 1827 74 1826 87 1825 107 1824 52 1823 37 1822 37 1821 73 1820 37 1819 76 1818 64 1817 64 1816 58 1815 74 1814 56 1813 74 1812 50 1811 56 1810 62 1809 76 1808 76 1807 76 1806 38 1805 95 1804 57 1803 44 1802 93 1801 74 1800 118 1799 95 1798 70 1797 58 1796 115 1795 58 1794 93 1793 109 1792 39 1791 117 1790 81 1789 124 1788 120 1787 40 1786 80 1785 80 1784 40 1783 84 1782 101 1781 134 1780 99 1779 99 1778 73 1777 79 1776 86 1775 101 1774 60 1773 60 1772 84 1771 40 1770 40 1769 60 1768 80 1767 80 1766 80 1765 67 1764 85 1763 84 1762 40 1761 40 1760 99 1759 40 1758 90 1757 64 1756 43 1755 121 1754 40 1753 80 1752 77 1751 66 1750 40 1749 122 1748 41 1747 68 1746 61 1745 61 1744 97 1743 42 1742 63 1741 63 1740 73 1739 115 1738 105 1737 42 1736 63 1735 115 1734 182 1733 64 1732 43 1731 64 1730 64 1729 96 1728 64 1727 64 1726 84 1725 84 1724 126 1723 35 1722 56 1721 42 1720 70 1719 164 1718 65 1717 65 1716 43 1715 72 1714 43 1713 58 1712 140 1711 130 1710 79 1709 58 1708 108 1707 86 1706 64 1705 43 1704 64 1703 153 1702 103 1701 145 1700 44 1699 89 1698 44 1697 70 1696 67 1695 104 1694 85 1693 85 1692 64 1691 57 1690 36 1689 85 1688 78 1687 68 1686 133 1685 48 1684 155 1683 63 1682 44 1681 108 1680 86 1679 61 1678 94 1677 86 1676 65 1675 112 1674 133 1673 63 1672 89 1671 111 1670 44 1669 129 1668 111 1667 89 1666 44 1665 44 1664 67 1663 74 1662 148 1661 44 1660 44 1659 67 1658 67 1657 48 1656 111 1655 81 1654 67 1653 67 1652 44 1651 67 1650 67 1649 67 1648 89 1647 89 1646 89 1645 67 1644 59 1643 74 1642 111 1641 131 1640 66 1639 110 1638 110 1637 104 1636 68 1635 68 1634 91 1633 68 1632 68 1631 61 1630 76 1629 91 1628 91 1627 68 1626 68 1625 114 1624 57 1623 91 1622 91 1621 46 1620 91 1619 116 1618 76 1617 57 1616 56 1615 58 1614 116 1613 77 1612 95 1611 110 1610 166 1609 47 1608 39 1607 75 1606 47 1605 111 1604 115 1603 69 1602 46 1601 69 1600 92 1599 69 1598 54 1597 114 1596 114 1595 97 1594 97 1593 195 1592 94 1591 183 1590 109 1589 19 1588 57 1587 57 1586 133 1585 57 1584 93 1583 60 1582 40 1581 100 1580 60 1579 122 1578 100 1577 100 1576 120 1575 137 1574 61 1573 142 1572 61 1571 61 1570 155 1569 78 1568 58 1567 117 1566 110 1565 79 1564 39 1563 59 1562 107 1561 59 1560 59 1559 138 1558 39 1557 51 1556 107 1555 140 1554 80 1553 40 1552 76 1551 116 1550 88 1549 123 1548 149 1547 107 1546 56 1545 79 1544 106 1543 61 1542 81 1541 41 1540 81 1539 105 1538 102 1537 61 1536 101 1535 61 1534 41 1533 89 1532 73 1531 101 1530 80 1529 95 1528 60 1527 40 1526 120 1525 176 1524 41 1523 41 1522 82 1521 81 1520 41 1519 41 1518 89 1517 103 1516 100 1515 119 1514 100 1513 41 1512 61 1511 61 1510 41 1509 61 1508 61 1507 73 1506 101 1505 41 1504 69 1503 61 1502 41 1501 62 1500 62 1499 123 1498 41 1497 66 1496 83 1495 41 1494 62 1493 41 1492 85 1491 80 1490 60 1489 80 1488 40 1487 128 1486 61 1485 61 1484 101 1483 40 1482 126 1481 41 1480 97 1479 40 1478 40 1477 40 1476 40 1475 40 1474 101 1473 53 1472 41 1471 62 1470 41 1469 62 1468 41 1467 41 1466 74 1465 41 1464 62 1463 62 1462 62 1461 82 1460 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