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Showing papers by "Grant M. Raisbeck published in 2017"

Journal Article•DOI•
An improved north–south synchronization of ice core records around the 41 kyr 10 Be peak

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Grant M. Raisbeck1, Alexandre Cauquoin2, Jean Jouzel2, Amaelle Landais2, Jean-Robert Petit2, Vladimir Ya. Lipenkov3, Juerg Beer4, Hans-Arno Synal5, Hans Oerter6, Sigfus J Johnsen7, Jørgen Peder Steffensen7, Anders Svensson7, Françoise Yiou1 •
Université Paris-Saclay1, Centre national de la recherche scientifique2, Arctic and Antarctic Research Institute3, Swiss Federal Institute of Aquatic Science and Technology4, ETH Zurich5, Alfred Wegener Institute for Polar and Marine Research6, Niels Bohr Institute7
10 Mar 2017-Climate of The Past
TL;DR: Using high-resolution 10Be measurements in the NGRIP, EDML and Vostok ice cores, together with previously published data from EDC, an improved synchronization between Greenland and Antarctic ice cores during the Laschamp geomagnetic excursion was presented in this article.
Abstract: . Using new high-resolution 10Be measurements in the NGRIP, EDML and Vostok ice cores, together with previously published data from EDC, we present an improved synchronization between Greenland and Antarctic ice cores during the Laschamp geomagnetic excursion ∼ 41 kyr ago. We estimate the precision of this synchronization to be ±20 years, an order of magnitude better than previous work. We discuss the implications of this new synchronization for making improved estimates of the depth difference between ice and enclosed gas of the same age (Δdepth), difference between age of ice and enclosed gas at the same depth (Δage) in the EDC and EDML ice cores, spectral properties of the 10Be profiles and phasing between Dansgaard–Oeschger-10 (in NGRIP) and AIM-10 (in EDML and EDC).

32 citations