# Law Dome Antarctica Ice Core #----------------------------------------------------------------------- # World Data Center for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program #----------------------------------------------------------------------- # NOTE: Please cite original reference 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/cdo/f?p=519:1:::::P1_STUDY_ID:6290 # # # Online_Resource: https://www.ncdc.noaa.gov/paleo/study/24611 # # Original_Source_URL: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/antarctica-temp2006.txt # # Description/Documentation lines begin with # # Data lines have no # # # Archive: Ice Cores # -------------------- # Contribution_date # Date: 2008-08-01 # -------------------- # Title # Study_Name: Law Dome Antarctica Ice Core # -------------------- # Investigators # Investigators: van Ommen, T.D.; Morgan, V. # -------------------- # Description_and_Notes # Description: Antarctic temperature reconstruction for the past two centuries based on # high resolution stable isotope data from ice cores. Annually-resolved # d18O and dD ice core records from Law Dome [van Ommen et al., 2004], # Siple Station [Mosley-Thompson et al., 1990], Dronning Maud Land (DML) # [Graf et al., 2002], and two West Antarctic sites of the United States # component of ITASE [Steig et al., 2006] were utilized in the reconstruction. # # A8 calibration temperature derived from raw station data from READER # (Turner et al, 2004). Data: http://www.antarctica.ac.uk/met/READER # Time series from eight stations on the coast and the continental interior # are included in the analysis. # # Ice Core Data: # The Law Dome 2000 record is a stack of several cores. The timeseries # provided here is that used for the reconstruction. # Law Dome data: http://data.aad.gov.au/aadc/portal/index.cfm?file_id=2462 # # The DML stack as used in the reconstruction is also provided. # The original data: # http://www.pangaea.de [search by "graf et al 2002" or by the core name]. # # The US-ITASE 2000-5 and 2000-1 records are contributed by Eric Steig # and David Schneider. # Additional details on US-ITASE data: http://nsidc.org/agdc/itase.html # # The Siple Station record is available from Dr. Ellen Mosley-Thompson # of the Byrd Polar Research Center at The Ohio State University. # # # # Table 1: Ice Core information # Law Dome 2000 (stack): 66.78°S, 112.82°E, 1370m elev., years 1800–1999, d18O # Siple Station: 75.92°S, 84.10°W, 1054m elev., years 1800–1983, d18O # Dronning Maud Land*: ~75°S, 0°E, ~2900m elev., years 1800–1997, d18O # US ITASE 2000-1: 79.38°S, 111.23°W, 1791m elev., years 1800–1999, d18O # US ITASE 2000-5: 77.68°S, 123.99°W, 1828m elev., years 1800–1999, dD # # *Dronning Maud Land DML stack, multiple cores, Graf et al. (2002): # DML18(FB9804); DML19(FB806); DML05(FB9807); DML20(FB9808); DML21(FB9810); # DML22(FB9811); DML16(FB9813); DML14(FB9815); DML13(FB9816); DML12(FB9817); # DML07(B31); DML05(B32); DML17(B33); DML03(FB9809). # # -------------------- # Publication # Authors: van Ommen, T.D.; Morgan V. # Published_Date_or_Year: 1997-04-27 # Published_Title: Calibrating the ice core paleothermometer using seasonality # Journal_Name: Journal of Geophysical Research # Volume: 102 # Edition: # Issue: D8 # Pages: 9351-9357 # DOI: # Online_Resource: # Full_Citation: # Abstract: High-resolution oxygen isotope measurements on the Dome Summit South (DSS) ice core from Law Dome, Antarctica, provide a seasonal profile that is sufficiently stable and undistorted by biases in accumulation to permit comparison with measured temperature seasonality. This comparison yields an isotope-temperature relation with a gradient (ddelata/dT) of 0.44+/-0.02%/degrees C and provides a new method for exploring the isotope-temperature relationship at high-accumulation sites. If applied to the observed isotope record from the DSS core, which extends through the last glacial and beyond, this calibration suggests that at its coldest the last glaciation was ~13 degrees C colder than present at this site (after correcting for elevation change). This finding compares with a temperature difference of ~8 degrees C computed by using the local spatially derived calibration. # -------------------- # Authors: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G.J., Noone, D., Perkins, W.A., and E. Steig # Published_Date_or_Year: 2018 # Published_Title: Additions to the last millennium reanalysis multi-proxy database # Journal_Name: Data Science Journal # Volume: # Edition: # Issue: # Pages: # Report_Number: # DOI: # Online_Resource: # Full_Citation: Anderson, D.M., Tardif, R., Horlick, K., Erb, M.P., Hakim, G., J., Noone, D., Perkins, W.A., and E. Steig, submitted. Additions to the last millennium reanalysis multi-proxy database. Data Science Journal. # Abstract: Progress in paleoclimatology increasingly occurs via data syntheses. We describe additions to a collection prepared for use in paleoclimate state estimation, specifically the Last Millennium Reanalysis (LMR). The 2290 additional series include 2152 tree ring chronologies and 138 other series. They supplement the collection used previously and together form a database titled LMRdb 1.0.0. The additional data draws from lake core, ice core, coral, speleothem, and tree ring archives, using published data primarily from the NOAA Paleoclimatology archive and a set of tree ring width chronologies standardized from raw International Tree Ring Data Bank ring width series. In contrast to many previous paleo compilations, the data were not selected (screened) on the basis of their environmental correlation, multi-century length, or other attributes. The inclusion of proxies sensitive to moisture and other environmental variables expands their use in data assimilation. A preliminary calibration using linear regression with mean annual temperature reveals characteristics of the proxy series and their relationship to temperature, as well as the noise and error characteristics of the records. The additional records are structured as individual files in the NOAA Paleoclimatology format and archived at NOAA Paleoclimatology (Anderson et al. 2018) and will continue to be improved and expanded as part of the LMR Project. The additions represent a four-fold increase in the number of records available for assimilation, provide expanded geographic coverage, and add additional proxy variables. Applications include data assimilation, proxy system model development, and paleoclimate reconstruction using climate field reconstruction and other methods. #------------------ # Funding_Agency # Funding_Agency_Name: United States National Science Foundation # -------------------- # Funding_Agency_Name: National Science Foundation # Grant:AGS-1304263 # Funding_Agency_Name: National Oceanic and Atmospheric Administration # Grant:NA14OAR4310176 #------------------ # Site_Information # Site_Name: Law Dome # Location: Antarctica # Country: # Northernmost_Latitude: -66.78 # Southernmost_Latitude: -66.78 # Easternmost_Longitude: 112.82 # Westernmost_Longitude: 112.82 # Elevation: 1828 m # -------------------- # Data_Collection # Collection_Name: 00LawD01 # Earliest_Year: 1800 # Most_Recent_Year: 1999 # Time_Unit: y_ad # Notes: {"database":"LMR"} # # -------------------- # Variables # # Data variables follow that are preceded by "##" in columns one and two. # Data line variables format: Variables list, one per line, shortname-tab-longname-tab-longname components (9 components: what, material, error, units, seasonality, archive, detail, method, C or N for Character or Numeric data) # ##age age,,,years AD,,,,,N ##d18O delta 18 Oxygen,,,permil SMOW,,Ice Cores,,,N # # -------------------- # Data: # Data lines follow (have no #) # Data line format - tab-delimited text, variable short name as header # Missing values: NAN # age d18O 1999 -23.8338 1998 -22.4601 1997 -23.1874 1996 -21.2777 1995 -22.3251 1994 -23.1217 1993 -22.7541 1992 -22.1638 1991 -22.2038 1990 -23.4321 1989 -21.9105 1988 -21.2233 1987 -23.0747 1986 -23.1174 1985 -22.5912 1984 -21.2915 1983 -21.6982 1982 -21.7452 1981 -21.9125 1980 -22.2687 1979 -22.5583 1978 -22.9449 1977 -21.1882 1976 -22.8407 1975 -20.6353 1974 -21.3997 1973 -22.7375 1972 -22.4106 1971 -22.4258 1970 -22.4158 1969 -23.2226 1968 -22.8577 1967 -22.2708 1966 -23.7278 1965 -22.064 1964 -22.0831 1963 -22.0101 1962 -22.592 1961 -22.7673 1960 -22.9944 1959 -23.1659 1958 -21.5289 1957 -23.0646 1956 -21.8099 1955 -22.309 1954 -21.9265 1953 -21.5128 1952 -22.9906 1951 -22.1041 1950 -21.3597 1949 -22.252 1948 -21.8949 1947 -22.6933 1946 -23.2407 1945 -22.8317 1944 -22.7046 1943 -22.0262 1942 -21.6228 1941 -22.3035 1940 -22.9746 1939 -21.7469 1938 -23.1844 1937 -21.946 1936 -23.3035 1935 -22.5538 1934 -23.0833 1933 -22.5867 1932 -21.6193 1931 -21.1342 1930 -22.4982 1929 -22.5082 1928 -21.5651 1927 -22.8367 1926 -22.2605 1925 -22.8908 1924 -22.6067 1923 -22.2861 1922 -22.2194 1921 -23.0225 1920 -22.5877 1919 -21.8157 1918 -22.2586 1917 -21.079 1916 -23.1988 1915 -21.5641 1914 -22.5154 1913 -22.4841 1912 -22.3485 1911 -22.2058 1910 -22.2982 1909 -21.782 1908 -22.4768 1907 -21.967 1906 -22.1024 1905 -21.9854 1904 -23.1576 1903 -22.9173 1902 -21.5404 1901 -22.3978 1900 -22.0785 1899 -22.2569 1898 -20.5565 1897 -22.781 1896 -23.3497 1895 -22.8194 1894 -21.5042 1893 -21.6665 1892 -22.8659 1891 -22.5967 1890 -22.7649 1889 -22.8142 1888 -22.7198 1887 -22.7839 1886 -22.4356 1885 -21.6382 1884 -21.8528 1883 -23.5809 1882 -22.5051 1881 -23.7111 1880 -21.6596 1879 -21.8918 1878 -22.2973 1877 -23.2624 1876 -22.2756 1875 -23.4602 1874 -22.8618 1873 -23.9162 1872 -22.9937 1871 -21.4644 1870 -21.6633 1869 -22.8523 1868 -21.7032 1867 -22.186 1866 -21.4544 1865 -23.916 1864 -22.4108 1863 -22.2642 1862 -22.6739 1861 -20.652 1860 -22.7527 1859 -21.5226 1858 -21.9672 1857 -22.0636 1856 -22.1562 1855 -22.5706 1854 -22.2123 1853 -21.8729 1852 -22.0688 1851 -21.0122 1850 -22.9017 1849 -21.9661 1848 -20.6483 1847 -21.1923 1846 -22.3591 1845 -22.3537 1844 -21.0635 1843 -21.3967 1842 -23.16 1841 -24.1516 1840 -22.6622 1839 -22.6816 1838 -23.0275 1837 -22.6874 1836 -22.8891 1835 -22.7248 1834 -21.7493 1833 -21.8306 1832 -21.4168 1831 -21.3957 1830 -22.9196 1829 -21.0543 1828 -21.8853 1827 -22.0181 1826 -21.9115 1825 -22.2651 1824 -21.7781 1823 -22.8112 1822 -22.9072 1821 -22.2601 1820 -23.3027 1819 -21.9834 1818 -22.8373 1817 -23.3461 1816 -22.8121 1815 -22.3417 1814 -21.9451 1813 -21.7902 1812 -21.7067 1811 -22.6419 1810 -21.986 1809 -22.6351 1808 -23.4284 1807 -23.3892 1806 -22.1541 1805 -22.2808 1804 -24.15 1803 -22.081 1802 -22.7182 1801 -21.9264 1800 -22.2359