A 2700-year annual timescale and accumulation history for the RICE (Roosevelt Island Climate Evolution) ice core from Roosevelt Island, Ross Sea region, West Antarctica. The timescale was constructed by a combination of manual and automated annual-layer counting, and subsequently validated by volcanic and methane matching to the WAIS Divide ice core on the WD2014 chronology. It constitutes the top part of the Roosevelt Island Ice Core Chronology 2017, RICE17.Past annual accumulation rates were obtained from the annual layer thicknesses, after correction for firn densification and layer thinning due to ice flow. The uncertainty of past accumulation rates was estimated based on the uncertainty in ice flow thinning with depth.----For questions on the use or construction of this chronology and corresponding accumulation rate history, please contact: Mai Winstrup, Centre for Ice and Climate, University of Copenhagen, mai@nbi.ku.dk For questions regarding the RICE chemistry data: Paul Vallelonga, Centre for Ice and Climate, University of Copenhagen, vallelonga@nbi.ku.dkFor questions regarding the thinning rate reconstruction: T.J. Fudge, Earth and Space Sciences, University of Washington, tjfudge@uw.edu
Version 2, 2019-03-07.
Supplement to: Winstrup, Mai; Vallelonga, Paul T; Kjær, Helle Astrid; Fudge, Tyler J; Lee, James E; Riis, Marie H; Edwards, Ross L; Bertler, Nancy A; Blunier, Thomas; Brook, Edward J; Buizert, Christo; Ciobanu, Gabriela; Conway, Howard; Dahl-Jensen, Dorthe; Ellis, Aja A; Emanuelsson, B Daniel; Hindmarsh, Richard C A; Keller, Elizabeth D; Kurbatov, Andrei; Mayewski, Paul Andrew; Neff, Peter D; Pyne, Rebecca L; Simonsen, Marius; Svensson, Anders M; Tuohy, Andrea; Waddington, Edwin D; Wheatley, Sarah (2019): A 2700-year annual timescale and accumulation history for an ice core from Roosevelt Island, West Antarctica. Climate of the Past, 15(2), 751-779
