GISP Summit Ice Core Data: Readme file
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			World Data Center A - Paleoclimatology
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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).