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 ANNUAL ACCUMULATION 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: l74sum.sum # Summit 1974 accumulation on one year averages from 1972 to 1903 AD. # Lambda (accumulation) is 25 cm/yr ice equivalent. # Columns: year/ accumulation (cm/yr ice equiv.) DATA: 1972 15.63 1971 25.00 1970 20.31 1969 26.56 1968 31.25 1967 23.44 1966 17.19 1965 26.56 1964 28.13 1963 25.00 1962 20.31 1961 25.00 1960 20.31 1959 29.69 1958 34.38 1957 25.00 1956 20.31 1955 32.81 1954 29.69 1953 25.00 1952 28.13 1951 21.88 1950 25.00 1949 23.44 1948 23.44 1947 29.69 1946 28.13 1945 39.06 1944 28.13 1943 17.19 1942 31.25 1941 23.44 1940 25.00 1939 34.38 1938 29.69 1937 21.88 1936 28.13 1935 17.19 1934 28.13 1933 32.81 1932 32.81 1931 23.44 1930 23.44 1929 25.00 1928 28.13 1927 26.56 1926 20.31 1925 20.31 1924 18.75 1923 26.56 1922 21.88 1921 25.00 1920 23.44 1919 21.88 1918 28.13 1917 17.19 1916 35.94 1915 21.88 1914 23.44 1913 25.00 1912 26.56 1911 31.25 1910 25.00 1909 20.31 1908 23.44 1907 23.44 1906 20.31 1905 28.13 1904 34.38 1903 1.56