File:Ngrip deltao18 55000 75000 1.svg

Summary[edit]

http://www.gfy.ku.dk/~www-glac/data/NGRIP_d18O_50yrs.txt

Supplementary Data to NGRIP Members, Nature 431, 147 - 151 (09 September 2004); doi:10.1038/nature02805

High resolution Climate Record of the Northern Hemisphere back into the last Interglacial Period

North Greenland Ice-Core Project (NorthGRIP) Members

In this text file we list the NGRIP oxygen 18 values as 50 year mean values using the same preliminary age scale as in Figure 2c of the accompanying paper. Data was measured against VSMOW at the Niels Bohr Institute for Astronomy, Physics and Geophysics, Department of Geophysics, University of Copenhagen. Accuracy of individual measurements is 0.07 %. The initial isotope data series is based on 5 cm continuous sampling from surface to bottom of the core, or 61100 individual measurements. Improved dating of the NGRIP core and additional data will be posted on our web site http://www.glaciology.gfy.ku.dk/ngrip/index_eng.htm archive copy at the Wayback Machine when it becomes available.

Copenhagen June 6, 2004. Sigfus J. Johnsen <sigfus@gfy.ku.dk>.

ss09sea age Del 18O years BP 2000 permille

    .000	  -35.19

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