Articles | Volume 17, issue 4
Clim. Past, 17, 1587–1605, 2021
Clim. Past, 17, 1587–1605, 2021
Research article
29 Jul 2021
Research article | 29 Jul 2021

How precipitation intermittency sets an optimal sampling distance for temperature reconstructions from Antarctic ice cores

Thomas Münch et al.

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Cited articles

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung: Neumayer III and Kohnen Station in Antarctica operated by the Alfred Wegener Institute, Journal of large-scale research facilities, 2, A85,, 2016. a
Altnau, S., Schlosser, E., Isaksson, E., and Divine, D.: Climatic signals from 76 shallow firn cores in Dronning Maud Land, East Antarctica, The Cryosphere, 9, 925–944,, 2015. a
Birks, S. J. and Edwards, T. W. D.: Atmospheric circulation controls on precipitation isotope–climate relations in western Canada, Tellus B, 61, 566–576,, 2009. a
Casado, M., Münch, T., and Laepple, T.: Climatic information archived in ice cores: impact of intermittency and diffusion on the recorded isotopic signal in Antarctica, Clim. Past, 16, 1581–1598,, 2020. a, b, c, d
Craig, H. and Gordon, L. I.: Deuterium and oxygen 18 variations in the ocean and the marine atmosphere, in: Stable Isotopes in Oceanographic Studies and Paleotemperatures, edited by: Tongiorgi, E., Proceedings Spoleto 1965, V. Lishi e F., Pisa, Italy, 9–130, 1965. a
Short summary
We analyse Holocene climate model simulation data to find the locations of Antarctic ice cores which are best suited to reconstruct local- to regional-scale temperatures. We find that the spatial decorrelation scales of the temperature variations and of the noise from precipitation intermittency set an effective sampling length scale. Following this, a single core should be located at the target site for the temperature reconstruction, and a second one optimally lies more than 500 km away.