Abstract:
Gas-isotopic data from the Siple Dome and Byrd ice cores covering roughly the last 100 ka, consisting of d15N (15N/14N) of N2, d18O (18O/16O) of O2, dO2/N2, and dAr/N2. Derived parameters including past changes in the Dole Effect and the fractionation that causes it are also included.
A more detailed metadata record for this data set can be found at:
http://gcmd.nasa.gov/getdif.htm?NSIDC-0407