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Additional details about the data processing are given in the paper (Steig et al., 2021) and in the readme files for the previous data set submission (doi: 10.15784/601239).\r\n\r\nFive types of files are included.\r\n\r\nA) d17O, d18O, and dD from the L2140-i at 0.5 cm resolution.\r\nB) d18O, and dD from the L2130-i at 0.5 cm resolution, as well as d17O-equivalent, recalculated from the combination of L2140-i d17O and d18O data and L2130-i d18O data. The SP19 age scale is also included in this file.\r\nC) d17O, d18O, and dD data averaged to 100-year resolution, from data set (B).\r\nD) Raw data from both instruments, archived as netcdf files. Depth information is included with the L2130-i files, but not the L2140-i files. The data in both sets of files can be synchronized to the time-of-measurement (\"epoch\").\r\n\r\nData set (B) should be considered the definitive South Pole water isotope data set.", "citation": "Steig, E. J., Jones, T. R., Kahle, E., Morris, V., Schauer, A., Vaughn, B., & White, J. (2021) \"Continuous-flow measurements of the complete water isotope ratios (D/H, 17O/16O, 18O/16) from the South Pole ice core\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601429.", "datePublished": "2021-01-23", "keywords": ["Antarctica", "Climate", "Deuterium", "Glaciers/ice Sheet", "Glaciology", "Hydrogen", "Ice", "Ice Core", "Ice Core Chemistry", "Oxygen", "Paleoclimate", "Snow/ice", "South Pole", "Stable Isotopes"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "White, James", "email": "jwhite@spot.colorado.edu", "affiliation": {"@type": "Organization", "name": "Campus Box 450"}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Steig, Eric J.", "email": "steig@uw.edu", "affiliation": {"@type": "Organization", "name": "University of Washington, Department of Earth and Space Sciences, Box 35130, 70 Johnson Hall"}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Kahle, Emma", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Schauer, Andrew", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Morris, Valerie", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Vaughn, Bruce", "email": "bruce.vaughn@colorado.edu", "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Jones, Tyler R.", "email": "tyler.jones@colorado.edu", "affiliation": {"@type": "Organization", "name": null}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/601429iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "http://dx.doi.org/10.15784/601429", "additionalType": "dcat:distribution", "url": "http://dx.doi.org/10.15784/601429", "name": "landing page", "description": "Link to a web page related to the resource.. 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Continuous-flow measurements of the complete water isotope ratios (D/H, 17O/16O, 18O/16) from the South Pole ice core Data DOI: https://doi.org/10.15784/601429 Cite as Steig, E. J., Jones, T. R., Kahle, E., Morris, V., Schauer, A., Vaughn, B., & White, J. (2021) "Continuous-flow measurements of the complete water isotope ratios (D/H, 17O/16O, 18O/16) from the South Pole ice core" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601429. AMD - DIF Record(s) USAP-1443105_1 Abstract This data set provides high-precision, continuous-flow measurements for the the oxygen isotopes (17O/16O, 18O/16O) and hydrogen isotopes (D/H) of water from the 1751-m South Pole ice core. This data set should be considered the definitive data set, superceding the previous submissions (doi:10.15784/601239 and doi:10.15784/601396). These were been generated under a collaborative effort by the University of Washington Isolab (NSF Award#1443105) and the University of Colorado INSTAAR Isotope Lab (NSF Award# 1443328). This data set contains high-resolution stable isotope data (dD, d18O, and d17O) for the South Pole Ice core. Drilling was initiated in 2014 and completed in 2016, and subsequent analyses on the ice were performed at the Institute of Arctic and Alpine Research, University of Colorado using Continuous Flow Analysis (CFA) as described in Steig et al. (2021). Entire meters of core are slowly melted and resulting water is converted to vapor for analysis with two cavity ring down spectrometers (CRDS), a Picarro L-2130 for dD and d18O, and a Picarro L-2140 for d17O. Each meter of ice takes approximately 40 minutes to melt, and data are generated nominally at 1Hz, resulting in approximately 2,400 data points per meter. Each data point is ascribed to a specific depth using a depth-assignment algorithm that accounts for mixing within the system. Additional details about the data processing are given in the paper (Steig et al., 2021) and in the readme files for the previous data set submission (doi: 10.15784/601239). Five types of files are included. A) d17O, d18O, and dD from the L2140-i at 0.5 cm resolution. B) d18O, and dD from the L2130-i at 0.5 cm resolution, as well as d17O-equivalent, recalculated from the combination of L2140-i d17O and d18O data and L2130-i d18O data. The SP19 age scale is also included in this file. C) d17O, d18O, and dD data averaged to 100-year resolution, from data set (B). D) Raw data from both instruments, archived as netcdf files. Depth information is included with the L2130-i files, but not the L2140-i files. The data in both sets of files can be synchronized to the time-of-measurement ("epoch"). Data set (B) should be considered the definitive South Pole water isotope data set. Creator(s): Steig, Eric J.; Jones, Tyler; Schauer, Andrew; Kahle, Emma; Morris, Valerie; Vaughn, Bruce; White, James Date Created: 2021-01-23 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: 98.16, East: -98.16, South: -89.99, North: -89.98 Temporal Extent(s) Start: 2021-01-20 - End: 2021-01-20 Award(s) NSF 1443105 NSF 1443328 Version: 1 Related Project(s) Collaborative Research: Record of the Triple-oxygen Isotope and Hydrogen Isotope Composition of Ice from an Ice Core at South Pole References Kahle, E. C., Holme, C., Jones, T. R., Gkinis, V., & Steig, E. J. (2018). A Generalized Approach to Estimating Diffusion Length of Stable Water Isotopes From Ice-Core Data. Journal of Geophysical Research: Earth Surface, 123(10), 2377–2391. (doi:10.1029/2018jf004764) Kahle, E. C., Steig, E. J., Jones, T. R., Fudge, T. J., Koutnik, M. R., Morris, V., … White, J. W. C. (2020). Reconstruction of temperature, accumulation rate, and layer thinning from an ice core at South Pole using a statistical inverse method. (doi:10.1002/essoar.10503447.1) Steig, E.J., Jones, T.R., Schauer, A.J., Kahle, E.C., Morris, V.A., Vaughn, B.H., Davidge, L., White, J.W.C. (2021) Continuous-flow analysis of δ17O, δ18O, and δD of H2O on an ice core from the South Pole. Frontiers in Earth Sciences. (doi:10.3389/feart.2021.640292) Keywords Antarctica Climate Deuterium Glaciers/ice Sheet Glaciology Hydrogen Ice Ice Core Ice Core Chemistry Oxygen Paleoclimate Snow/ice South Pole Stable Isotopes