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Gkinis, Vasileios; Holme, Christian T; Vinther, Bo Møllesøe (2018): Stable isotope records of Arctic and Antarctic ice cores [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.886048, Supplement to: Holme, Christian T; Gkinis, Vasileios; Vinther, Bo Møllesøe (2018): Molecular diffusion of stable water isotopes in polar firn as a proxy for past temperatures. Geochimica et Cosmochimica Acta, 225, 128-145, https://doi.org/10.1016/j.gca.2018.01.015

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Abstract:
Polar precipitation archived in ice caps contains information on past temperature conditions. Such information can be retrieved by measuring the water isotopic signals of ?18O and ?D in ice cores. These signals have been attenuated during densification due to molecular diffusion in the firn column, where the magnitude of the diffusion is isotopologoue specific and temperature dependent. By utilizing the differential diffusion signal, dual isotope measurements of d18O and dD enable multiple temperature reconstruction techniques. This study assesses how well six different methods can be used to reconstruct past surface temperatures from the diffusion-based temperature proxies. Two of the methods are based on the single diffusion lengths of d18O and dD, three of the methods employ the differential diffusion signal, while the last uses the ratio between the single diffusion lengths. All techniques are tested on synthetic
data in order to evaluate their accuracy and precision. We perform a benchmark test to thirteen high resolution Holocene data sets from Greenland and Antarctica, which represent a broad range of mean annual surface temperatures and accumulation rates.
Based on the benchmark test, we comment on the accuracy and precision of the methods. Both the benchmark test and the synthetic data test demonstrate that the most precise reconstructions are obtained when using the single isotope diffusion lengths, with precisions of approximately 1.0°C. In the benchmark test, the single isotope diffusion lengths are also found to reconstruct consistent temperatures with a root mean-square-deviation of 0.7°C. The techniques employing the differential diffusion signals are more uncertain, where the most precise method has a precision of 1.9°C. The diffusion length ratio method is the least precise with a precision of 13.7°C. The absolute temperature estimates from this method are also shown to be highly sensitive to the choice of fractionation factor parameterization.
Related to:
Gkinis, Vasileios (2011): High resolution water isotope samples from ice cores (PhD thesis). University of Copenhagen, Denmark, 109 pp, https://nbi.ku.dk/english/theses/phd-theses/vasileios-gkinis/thesis_VK.pdf
Gkinis, Vasileios; Popp, Trevor; Blunier, Thomas; Bigler, Matthias; Schüpbach, Simon; Kettner, E; Johnsen, Sigfús Jóhann (2011): Water isotopic ratios from a continuously melted ice core sample. Atmospheric Measurement Techniques, 4(11), 2531-2542, https://doi.org/10.5194/amt-4-2531-2011
Steig, Eric J; Ding, Quinghua; White, James W C; Küttel, Meinrad; Rupper, Summer B; Neumann, T A; Neff, Peter D; Gallant, Ailie J E; Mayewski, Paul Andrew; Taylor, Kendrick C; Hoffmann, Georg; Dixon, Daniel A; Schoenemann, Spruce W; Markle, Bradley R; Fudge, Tyler J; Schneider, David P; Schauer, Andrew J; Teel, Rebecca P; Vaughn, Bruce H; Burgener, Landon; Williams, Jessica; Korotkikh, Elena (2013): Recent climate and ice-sheet changes in West Antarctica compared with the past 2,000 years. Nature Geoscience, 6(5), 372-375, https://doi.org/10.1038/NGEO1778
Svensson, Anders M; Fujita, Shuji; Bigler, Matthias; Braun, M; Dallmayr, Remi; Gkinis, Vasileios; Goto-Azuma, Kumiko; Hirabayashi, Motohiro; Kawamura, K; Kipfstuhl, Sepp; Kjær, Helle Astrid; Popp, Trevor; Simonsen, Marius; Steffensen, Jørgen Peder; Vallelonga, Paul T; Vinther, Bo Møllesøe (2015): On the occurrence of annual layers in Dome Fuji ice core early Holocene ice. Climate of the Past, 11(9), 1127-1137, https://doi.org/10.5194/cp-11-1127-2015
Source:
Gkinis, Vasileios; Popp, Trevor; Blunier, Thomas; Bigler, Matthias; Schüpbach, Simon; Kettner, E; Johnsen, Sigfús Jóhann (2018): Water stable isotope record of ice core NEEM (early Holocene) measured discretely. PANGAEA, https://doi.org/10.1594/PANGAEA.886042
Gkinis, Vasileios; Popp, Trevor; Blunier, Thomas; Bigler, Matthias; Schüpbach, Simon; Kettner, E; Johnsen, Sigfús Jóhann (2018): Water stable isotope record of ice core NEEM (early Holocene) measured with Continuous Flow Analysis. PANGAEA, https://doi.org/10.1594/PANGAEA.886041
Gkinis, Vasileios; Simonsen, Sebastian B; Buchardt, Susanne L; White, James W C; Vinther, Bo Møllesøe (2018): Water stable isotope record of ice core NGRIP (top section). PANGAEA, https://doi.org/10.1594/PANGAEA.886045
Gkinis, Vasileios; Simonsen, Sebastian B; Buchardt, Susanne L; White, James W C; Vinther, Bo Møllesøe (2018): Water stable isotope record of ice cores NGRIP I and II. PANGAEA, https://doi.org/10.1594/PANGAEA.886044
Oerter, Hans; Graf, Wolfgang; Meyer, Hanno; Wilhelms, Frank (2004): Stable-istope measurements, 5 cm interval, from ice core EDML (DML28C01_00), Fig 3. PANGAEA, https://doi.org/10.1594/PANGAEA.264580
Steig, Eric J; Ding, Quinghua; White, James W C; Küttel, Meinrad; Rupper, Summer B; Neumann, T A; Neff, Peter D; Gallant, Ailie J E; Mayewski, Paul Andrew; Taylor, Kendrick C; Hoffmann, Georg; Dixon, Daniel A; Schoenemann, Spruce W; Markle, Bradley R; Fudge, Tyler J; Schneider, David P; Schauer, Andrew J; Teel, Rebecca P; Vaughn, Bruce H; Burgener, Landon; Williams, Jessica; Korotkikh, Elena; Gkinis, Vasileios (2018): Water stable isotope record of ice core WAIS divide. PANGAEA, https://doi.org/10.1594/PANGAEA.886046
Svensson, Anders M; Fujita, Shuji; Bigler, Matthias; Braun, M; Dallmayr, Remi; Gkinis, Vasileios; Goto-Azuma, Kumiko; Hirabayashi, Motohiro; Kawamura, K; Kipfstuhl, Sepp; Kjær, Helle Astrid; Popp, Trevor; Simonsen, Marius; Steffensen, Jørgen Peder; Vallelonga, Paul T; Vinther, Bo Møllesøe (2018): Water stable isotope record of ice core Dome Fuji. PANGAEA, https://doi.org/10.1594/PANGAEA.886037
Project(s):
Greenland Ice Core Projects (GRIP/GISP/NGRIP)
Coverage:
Median Latitude: 44.011600 * Median Longitude: -8.105000 * South-bound Latitude: -75.102000 * West-bound Longitude: -51.060000 * North-bound Latitude: 77.450000 * East-bound Longitude: 123.395000
Date/Time Start: 1989-06-01T00:00:00 * Date/Time End: 2009-08-20T00:00:00
License:
Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC-BY-NC-ND-3.0)
Size:
5 datasets

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Datasets listed in this publication series

  1. Gkinis, V (2018): Water stable isotope record of ice core Dome C. https://doi.org/10.1594/PANGAEA.886036
  2. Gkinis, V (2018): Water stable isotope record of ice core GRIP (early Holocene). https://doi.org/10.1594/PANGAEA.886038
  3. Gkinis, V (2018): Water stable isotope record of ice core GRIP (late Holocene). https://doi.org/10.1594/PANGAEA.886039
  4. Gkinis, V (2018): Water stable isotope record of ice core GRIP (mid Holocene). https://doi.org/10.1594/PANGAEA.886040
  5. Gkinis, V (2018): Water stable isotope record of ice core NEEM (top section). https://doi.org/10.1594/PANGAEA.886043