GISP Summit Ice Core Data: Readme file -------------------------------------------------------------------------------- World Data Center A - Paleoclimatology -------------------------------------------------------------------------------- NOTE: PLEASE CITE ORIGINAL REFERENCE WHEN USING THIS DATA!!!!! NAME OF DATA SET: GISP Summit Ice Core Data CONTRIBUTORS: David Fisher SUGGESTED DATA CITATION: Fisher, D., GISP Summit Ice Core Data. International Ice Core Data Cooperative, IGBP Pages/World Data Center-A for Paleoclimatology NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCES: Clausen, H.B., N.S. Gundestrup, S.J. Johnsen, R. Bindschadler, and J. Zwally (1988) "Glaciological Investigations in the Crete Area, Central Greenland: A Search for a New Deep-Drlling Site," Annals of Glaciology 10, International Glaciological Soceitey. Langway, C.C., Jr., H. Oeschger, and W. Dansgaard (eds.), 1985. Greenland ice core: Geophysics, geochemistry and environment: Geophysical Monographs, v. 33, American Geophysics Union, Washington D.C. LAST UPDATE: 1998 (Original receipt by International Ice Core Data Cooperative) GEOGRAPHIC REGION: Greenland LIST OF FILES: readme_gisp-summit.txt (this file), SUM74MC, L74SUM, SUM74-1Y. DESCRIPTION: HIGH RESOLUTION O-18 & ACCUM FOR CENTRAL GREENLAND (SUMMIT 1974) Prepared by Dave Fisher, Nov. 30, 1994 SUM74MC SUMMIT 1974 DELTA-18 . 16/YR DETAILED. THE DATA SPANS A TIMEFRAME FROM 1972 -1903 AD. ACCUMULATION=25 CM/YR ICE EQUIVALENT THE CORE WAS DRILLED IN THE SPRING OF 1975. THERE ARE APPROXIMATELY 16 SAMPLES PER YEAR, BUT VARIABLE. THE 4TH VALUE IS WINTER 72/73. L74SUM SUMMIT 1974 ACCUMULATION DATA. 1 YR AVESERAGES. THE DATA SPANS A TIMEFRAME FROM 1972-1903 AD . ACCUMULATION (LAMBDA)=25 CM/YR ICE . SUM74-1Y SUMMIT 1974 DELTA-18 1 YR AVERAGES. THE DATA SPANS A TIMEFRAME FROM 1972 -1903 AD WHICH IS BASED ON THE DETAILED DEL CURVE. ACCUMULATION (LAMBDA)=25 CM/YR ICE. THE FIRST VALUE IS WINTER TO SUMMER 1985 (ROUGHLY 1/2 YEAR - 4 VARIABLES ONLY). SUMMIT 1974 DELTA 18-O ANNUAL AVERAGES REFERENCES: Langway, C.C., Jr., H. Oeschger, and W. Dansgaard (eds.), 1985. Greenland ice core: Geophysics, geochemistry and environment: Geophysical Monographs, v. 33, American Geophysics Union, Washington D.C. DATA DESCRIPTION: # FILE: sum74-1y.sum # Summit 1974 delta 18-O one year averages from 1972 to 1903 based on detailed deltas. # Lambda (accumulation) is 25 cm/year ice equivalent. # First value is winter to summer 1985 and is based on 4 measurements, all others winter # to winter # Columns: Year/delta 18-O (per mil). DATA: 1972 -38.02 1971 -33.98 1970 -34.58 1969 -36.9 1968 -34.74 1967 -36.68 1966 -35.73 1965 -33.33 1964 -34.79 1963 -34.22 1962 -33.98 1961 -34.14 1960 -35.38 1959 -35.66 1958 -34.78 1957 -34.31 1956 -35.34 1955 -36.36 1954 -34.07 1953 -35.13 1952 -35.28 1951 -35.84 1950 -35.49 1949 -35.99 1948 -35.51 1947 -33.19 1946 -33.27 1945 -33.91 1944 -35.17 1943 -36.64 1942 -34.31 1941 -35.15 1940 -35.5 1939 -35.16 1938 -36.18 1937 -37.63 1936 -35.22 1935 -36.24 1934 -34.69 1933 -34.11 1932 -32.5 1931 -33.12 1930 -34.67 1929 -33.53 1928 -34.7 1927 -35.98 1926 -36.07 1925 -36.02 1924 -36.7 1923 -34.64 1922 -35.34 1921 -35.43 1920 -35.41 1919 -34.75 1918 -36.19 1917 -37.84 1916 -33.67 1915 -35.89 1914 -36.25 1913 -35.68 1912 -35.19 1911 -35.73 1910 -34.9 1909 -33.8 1908 -34.02 1907 -34.48 1906 -35.39 1905 -35.38 1904 -36.07 1903 -36.96