El Niño-Southern oscillation signal in a new east antarctic ice core, Mount Brown South
Camilla K. Crockart,Tessa Vance,Alexander D. Fraser,Nerilie J. Abram,A. S. Criscitiello,Mark A. J. Curran,Mark A. J. Curran,Vincent Favier,Ailie J. E. Gallant,Christoph Kittel,Helle Astrid Kjær,Andrew Klekociuk,Andrew Klekociuk,Lenneke M. Jong,Lenneke M. Jong,Andrew D. Moy,Andrew D. Moy,CT Plummer,Paul Vallelonga,Paul Vallelonga,Jonathan Wille,Lingwei Zhang +21 more
TLDR
In this article, the authors compare snowfall accumulation rates and sea salt concentrations in the upper portion (~21m) of the Mount Brown South record, and an updated Law Dome record over the period 1975-2016.Abstract:
. Paleoclimate archives, such as high-resolution ice core records, provide a means to investigate long-term (multi-centennial) climate variability. Until recently, the Law Dome (Dome Summit South) ice core record remained one of few long-term high-resolution records in East Antarctica. A new ice core drilled in 2017/2018 at Mount Brown South, approximately 1000 km west of Law Dome, provides an additional high-resolution record that will likely span the last millennium in the Indian Ocean sector of East Antarctica. Here, we compare snowfall accumulation rates and sea salt concentrations in the upper portion (~21 m) of the Mount Brown South record, and an updated Law Dome record over the period 1975–2016. Annual sea salt concentrations from the Mount Brown South record preserves a stronger signal for the El Nino-Southern Oscillation (ENSO; in austral winter and spring, r = 0.521, pread more
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Pacific decadal variability over the last 2000 years and implications for climatic risk
Tessa Vance,Anthony S. Kiem,Lenneke M. Jong,Jason L. Roberts,C. Plummer,Andrew D. Moy,Mark A. J. Curran,Tas van Ommen +7 more
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2000 years of annual ice core data from Law Dome, East Antarctica
TL;DR: Curran et al. as discussed by the authors presented a set of annually dated records of trace chemistry, stable water isotopes and snow accumulation from Law Dome covering the period from −11 to 2017 CE (1961 to −66 BP 1950) and the level 1 chemistry data from which the annual chemistry records are derived.
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