# Amundsenisen Dronning Maud Land oxygen isotope and accumulation rate data from 1895-1996 CE #----------------------------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original publication, online resource and date accessed when using this data. # If there is no publication information, please cite Investigator, title, online resource and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/23235 # Description: NOAA Landing Page # Online_Resource: http://www1.ncdc.noaa.gov/pub/data/paleo/pages2k/stenni2017antarctica/DMLicecore/Site1_08-accum-DML_Plateau_FB96DML01.txt # Description: NOAA location of the template # # Archive: Ice Cores # # Dataset_DOI: # # Parameter_Keywords: oxygen isotopes, accumulation #--------------------------------------- # Contribution_Date # Date: 2017-12-14 #--------------------------------------- # File_Last_Modified_Date # Date: 2017-12-14 #--------------------------------------- # Title # Study_Name: PAGES 2000 year oxygen isotope and accumulation rate data from Dronning Maud Land, Antarctica #--------------------------------------- # Investigators # Investigators: Oerter, Hans; Graf, Wolfgang; Wilhelms, Frank; Minikin, Andreas; Miller, Heinz #--------------------------------------- # Description_Notes_and_Keywords # Description: DML data contributed to the PAGES 2k project # Provided Keywords: oxygen isotope of water, temperature proxy, accumulation rate #--------------------------------------- # Publication # Authors: Oerter, Hans; Graf, Wolfgang; Wilhelms, Frank; Minikin, Andreas; Miller, Heinz # Published_Date_or_Year: 1999 # Published_Title: Accumulation studies on Amundsenisen, Dronning Maud Land, Antarctica, by means of tritium, dielectric profiling and stable-isotope measurements: first results from the 1995–96 and 1996–97 field seasons # Journal_Name: Annals of Glaciology # Volume: 29 # Edition: # Issue: 1 # Pages: 1-9 # Report Number: # DOI: 10.3189/172756499781820914 # Online_Resource: # Full_Citation: # Abstract: The paper focuses on studies of snow-pit samples and shallow firn cores taken during the 1995-96 and 1996-97 field seasons at Amundsenisen, Dronning Maud Land, Antarctica. The dating of the firn is based on the artificial tritium distribution in the snow cover and on several reference horizons identified by electrical measurements. The early 1964 through 1965 horizon is marked by the deposition of sulfate released to the atmosphere during the eruption of the Agung volcano in March 1963; this horizon was detected by dielectric profiling and electrical conductivity measurements: the proof by chemical analysis has still to be seen. At the ten investigated sites on Amundsenisen the 1964-65 horizon was identified 4.1-5.7 m below the surface. The accumulation rates on Amundsenisen are 41-91kg m-2 a−1 The cores are up to 100 years old A relationship between isotope content and the mean air temperature on a regional scale can be based on measurements of firn temperature at 10 m depth at the drilling sites Between Neumayer station at the coast and Heimefrontfiella, the temperature gradient of the deuterium content is 9.6%0 K−1. South of Heimefrontfiella, on the Amundsenisen plateau, it is only 5.5‰ K−1. Time series of yearly accumulation rates show no significant trend For the isotope records a significant trend to higher values with gradients of 0.1-0.2 δ 2H‰a−1 can be seen in five of the ten time series #--------------------------------------- # Funding_Agency # Funding_Agency_Name: Deutsche Forschungsgemeinschaft # Grant: Re-762/2 #--------------------------------------- # Funding_Agency # Funding_Agency_Name: European Science Foundation/European Commission # Grant: ENV4-CT95-0074 #--------------------------------------- # Site Information # Site_Name: DML01 Amundsenisen Dronning Maud Land # Location: Antarctica # Country: # Northernmost_Latitude: -74.8583 # Southernmost_Latitude: -74.8583 # Easternmost_Longitude: -2.55 # Westernmost_Longitude: -2.55 # Elevation: 2817 #--------------------------------------- # Data_Collection # Collection_Name: DML01C96_00 accum Oerter1999 # First_Year: 1895 # Last_Year: 1995 # Time_Unit: AD # Core_Length: 10.1 # Notes: #--------------------------------------- # Chronology_Information # Chronology: # # Ant2k volcanic event peak date (CE) Depth of volcanic peak in cores (m) # #--------------------------------------- # Variables # Data variables follow that are preceded by "##" in columns one and two. # Variables list, one per line, shortname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) ## year age ,,,years CE,,ice core,,,N,titrium content, dielectric profiling, electical conductivity, volcanic reference horizons ## accum accumulation rate ,,,kg/m2/yr,,ice core,,,N,calculated #------------------------ # Data # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing Value: NaN year accum 1995 NaN 1994 NaN 1993 41.7 1992 41.1 1991 41.1 1990 41.2 1989 41 1988 41.4 1987 41.1 1986 NaN 1985 41.2 1984 41.7 1983 40.8 1982 26.3 1981 34.6 1980 70.1 1979 33.7 1978 48.2 1977 33.9 1976 41.2 1975 40.7 1974 41.2 1973 41.6 1972 40.9 1971 32.8 1970 49.4 1969 NaN 1968 41.8 1967 56.4 1966 36.8 1965 30.1 1964 41.2 1963 41.2 1962 41 1961 41.2 1960 40.9 1959 40.7 1958 46.7 1957 33 1956 43.1 1955 50.4 1954 32 1953 32.4 1952 37.6 1951 53.4 1950 41.2 1949 41.1 1948 31.4 1947 35.4 1946 46 1945 48.1 1944 39.7 1943 31.4 1942 49.1 1941 51.7 1940 38.2 1939 59.3 1938 22.8 1937 32.9 1936 60.4 1935 49.1 1934 22.2 1933 31.6 1932 34.1 1931 36.8 1930 55 1929 39.2 1928 34.2 1927 32 1926 48.9 1925 44.3 1924 57 1923 47.8 1922 34.6 1921 67 1920 24 1919 21 1918 60.6 1917 34.7 1916 29.7 1915 40.9 1914 35.7 1913 30.3 1912 72 1911 36.1 1910 58.4 1909 28 1908 45 1907 45 1906 29.2 1905 30.1 1904 39.7 1903 65.4 1902 39.4 1901 36.3 1900 35.9 1899 46.8 1898 32 1897 46.6 1896 35.8 1895 32.6