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Summit Ice Core Data Readme

HIGH RESOLUTION O-18 and 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).

REFERENCES:
Clausen, H.B., N.S. Gundestrup, S.J. Johnsen, R. Bindschadler, and J. Zwally (1988) "Glaciological Invetigations in the Crete Area, Ceneral Greenland: A Search for a New Deep-Drlling Site," Annals of Glaciology 10, International Glaciological Soceitey.

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