USAP-DC

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WAIS Divide d18Oatm and Siple Dome/WAIS Divide composite and individual delta epsilon LAND Data DOI: https://doi.org/10.15784/601041 Cite as Seltzer, A., & Severinghaus, J. P. (2017) "WAIS Divide d18Oatm and Siple Dome/WAIS Divide composite and individual delta epsilon LAND" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601041. AMD - DIF Record(s) severinghaus_0538657 Abstract This data set contains measurements of d18Oatm (d18O of O2), d15N, dAr/N2, and dO2/N2 in gas bubbles from the WAIS Divide ice core. The time resolution is variable throughout the record but is ~100 years on average (from 65 ka to present). All measurements were made in the Noble Gas Isotope Laboratory at Scripps Institution of Oceanography (La Jolla, CA). The data set includes all replicate measurements as well as replicate-mean values and a calculation of measurement precision (pooled standard deviation). The second sheet of this data set includes fitted d18Oatm curves for the past 50 ka from both the WAIS Divide and Siple Dome Antarctic ice cores, both on the WD2014 timescale (Buizert et al., 2015). The second sheet also includes calculations of the time derivative of d18Oatm and d e LAND in both ice cores individual as well as in a composite record. Details of the entire data set and all relevant methods are provided in Seltzer et al., 2017. Creator(s): Seltzer, Alan Date Created: 2017-08-18 Repository: USAP-DC (current) License: Creative Commons Attribution-NonCommercial v4.0 Generic [CC BY-NC 4.0] Spatial Extent(s) West: -113, East: -111, South: -80, North: -79 Temporal Extent(s) Start: 2006-07-01 - End: 2010-06-30 Award(s) NSF 0538657 Version: 1 Related Project(s) Nitrogen and Oxygen Gas Isotopes in the WAIS Divide Ice Core as Constraints on Chronology, Temperature, and Accumulation Rate References Seltzer, A. M., Buizert, C., Baggenstos, D., Brook, E. J., Ahn, J., Yang, J.-W., and Severinghaus, J. P. (2017). Does d18O of O2 record meridional shifts in tropical rainfall?, Clim. Past 13, 1323-1338 (doi:10.5194/cp-2017-83) Keywords Antarctica Chemistry:ice Gas Geochemistry Glaciers/ice Sheet Glaciology Ice Core Records Isotope WAIS Divide Ice Core