# Antarctic Ice Core 200 Year Temperature Reconstruction #----------------------------------------------------------------------- # 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 # -------------------- # Title # Study_Name: Antarctic Ice Core 200 Year Temperature Reconstruction # -------------------- # Investigators # Investigators: Schneider, D.P.; Steig, E.J.; van Ommen, T.D.; Dixon, D.A.; Mayewski, P.A.; Jones, J.M.; Bitz, C.M. # -------------------- # 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: D.P Schneider, E.J. Steig, T.D. van Ommen, D.A. Dixon, P.A. Mayewski, J.M. Jones, C.M. Bitz # Published_Date_or_Year: 2006 # Published_Title: Antarctic temperatures over the past two centuries from ice cores. # Journal_Name: Geophysical Research Letters # Volume: 33 # Edition: # Issue: # Pages: # DOI: 10.1029/2006GL027057 # Online_Resource: # Full_Citation: # Abstract: We present a reconstruction of Antarctic mean surface temperatures over the past two centuries based on water stable isotope records from high-resolution, precisely dated ice cores. Both instrumental and reconstructed temperatures indicate large interannual to decadal scale variability, with the dominant pattern being anti-phase anomalies between the main Antarctic continent and the Antarctic Peninsula region. Comparative analysis of the instrumental Southern Hemisphere (SH) mean temperature record and the reconstruction suggests that at longer timescales, temperatures over the Antarctic continent vary in phase with the SH mean. Our reconstruction suggests that Antarctic temperatures have increased by about 0.2°C since the late nineteenth century. The variability and the long-term trends are strongly modulated by the SH Annular Mode in the atmospheric circulation. # -------------------- # 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, Office of Polar Programs # Grant: 0229416 #------------------ # Funding_Agency # Funding_Agency_Name: United States National Science Foundation, Office of Polar Programs # Grant: 0196105 # -------------------- # Funding_Agency_Name: National Science Foundation # Grant:AGS-1304263 # Funding_Agency_Name: National Oceanic and Atmospheric Administration # Grant:NA14OAR4310176 #------------------ # Site_Information # Site_Name: US ITASE 2000-1 # Location: Antarctica # Country: # Northernmost_Latitude: -79.38 # Southernmost_Latitude: -79.38 # Easternmost_Longitude: -111.23 # Westernmost_Longitude: -111.23 # Elevation: 1791 m # -------------------- # Data_Collection # Collection_Name: 00ITAS02 # 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 -33.5868 1998 -30.6453 1997 -31.2793 1996 -31.0521 1995 -31.3029 1994 -33.2584 1993 -32.8371 1992 -31.4698 1991 -31.173 1990 -32.1086 1989 -32.1808 1988 -33.3177 1987 -33.8687 1986 -35.1042 1985 -33.1259 1984 -31.4931 1983 -32.5974 1982 -33.061 1981 -31.8057 1980 -31.104 1979 -33.1066 1978 -32.9468 1977 -34.313 1976 -32.361 1975 -33.6475 1974 -32.865 1973 -33.0514 1972 -32.9474 1971 -32.0973 1970 -33.1005 1969 -33.9943 1968 -33.7811 1967 -33.1987 1966 -33.3841 1965 -32.9087 1964 -31.4286 1963 -33.3139 1962 -34.1693 1961 -31.9214 1960 -32.9024 1959 -34.2157 1958 -32.7904 1957 -34.3593 1956 -33.1395 1955 -33.8396 1954 -33.5002 1953 -33.8156 1952 -31.6781 1951 -33.0277 1950 -33.0127 1949 -33.2809 1948 -33.9805 1947 -33.723 1946 -31.4457 1945 -31.1592 1944 -33.5679 1943 -34.3566 1942 -32.847 1941 -31.1523 1940 -31.4078 1939 -30.6466 1938 -31.3871 1937 -34.2585 1936 -34.2843 1935 -33.3829 1934 -33.0867 1933 -33.4639 1932 -33.7921 1931 -32.1694 1930 -32.3941 1929 -33.7224 1928 -33.2143 1927 -33.3224 1926 -31.972 1925 -31.6029 1924 -32.4792 1923 -32.5525 1922 -31.9013 1921 -31.871 1920 -33.0393 1919 -33.5836 1918 -32.4454 1917 -34.3744 1916 -31.5261 1915 -32.6555 1914 -33.1469 1913 -32.6041 1912 -31.6986 1911 -31.965 1910 -34.282 1909 -34.6195 1908 -33.2167 1907 -34.4266 1906 -34.0148 1905 -34.1296 1904 -32.6113 1903 -33.7208 1902 -33.0529 1901 -32.0256 1900 -32.9549 1899 -32.0985 1898 -32.0324 1897 -33.8114 1896 -33.1711 1895 -33.1194 1894 -32.7191 1893 -33.8013 1892 -32.6802 1891 -32.5572 1890 -33.8502 1889 -32.6419 1888 -31.8674 1887 -32.847 1886 -32.3523 1885 -33.7812 1884 -32.633 1883 -32.5883 1882 -32.1566 1881 -33.7086 1880 -34.2543 1879 -32.8872 1878 -32.0068 1877 -30.7822 1876 -31.8133 1875 -33.5915 1874 -32.7011 1873 -31.879 1872 -33.2183 1871 -34.3593 1870 -34.1209 1869 -34.8264 1868 -33.2986 1867 -34.0458 1866 -34.1915 1865 -33.2381 1864 -33.1952 1863 -32.6203 1862 -32.7609 1861 -33.1682 1860 -34.5052 1859 -34.976 1858 -33.7857 1857 -33.1263 1856 -31.4481 1855 -32.2145 1854 -33.2933 1853 -32.5242 1852 -33.1961 1851 -34.6524 1850 -33.6455 1849 -33.4597 1848 -34.0184 1847 -33.578 1846 -32.6231 1845 -32.5189 1844 -33.8734 1843 -33.6582 1842 -34.1846 1841 -32.4144 1840 -31.7121 1839 -32.9329 1838 -33.107 1837 -33.8006 1836 -31.7163 1835 -30.9486 1834 -33.5846 1833 -33.7471 1832 -33.5235 1831 -33.1284 1830 -32.0377 1829 -31.5492 1828 -31.4113 1827 -30.4548 1826 -32.4302 1825 -32.396 1824 -33.8503 1823 -33.4686 1822 -32.7376 1821 -31.5288 1820 -33.5441 1819 -34.4695 1818 -33.4365 1817 -32.2346 1816 -32.2915 1815 -31.2323 1814 -33.7147 1813 -33.0025 1812 -32.2973 1811 -33.6728 1810 -34.5354 1809 -33.8443 1808 -33.0945 1807 -32.6685 1806 -32.602 1805 -33.4344 1804 -32.0795 1803 -33.0819 1802 -32.6154 1801 -32.1056 1800 -33.0787