Dating of the GV7 East Antarctic ice core by high-resolution chemical records and focus on the accumulation rate variability in the last millennium

Ice core dating is the first step for a correct interpretation of climatic and environmental changes. In this work, we release the dating of the uppermost 197 m of the 250 m deep GV7(B) ice core (drill site, 70 ∘ 41 ′ S, 158 ∘ 52 ′ E; 1950 m a.s.l. in Oates Land, East Antarctica) with a sub-annual r...

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Bibliographic Details
Published in:Climate of the Past
Main Authors: R. Nardin, M. Severi, A. Amore, S. Becagli, F. Burgay, L. Caiazzo, V. Ciardini, G. Dreossi, M. Frezzotti, S.-B. Hong, I. Khan, B. M. Narcisi, M. Proposito, C. Scarchilli, E. Selmo, A. Spolaor, B. Stenni, R. Traversi
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
Environmental pollution
TD172-193.5
Environmental protection
TD169-171.8
Environmental sciences
GE1-350
Antarctic
East Antarctica
Oates Land
Antarc*
Antarctica
ice core
Online Access:https://doi.org/10.5194/cp-17-2073-2021
https://doaj.org/article/16dd67f0bb2f4866b86c8313fb33bf00
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Summary:Ice core dating is the first step for a correct interpretation of climatic and environmental changes. In this work, we release the dating of the uppermost 197 m of the 250 m deep GV7(B) ice core (drill site, 70 ∘ 41 ′ S, 158 ∘ 52 ′ E; 1950 m a.s.l. in Oates Land, East Antarctica) with a sub-annual resolution. Chemical records of NO <math xmlns="http://www.w3.org/1998/Math/MathML" id="M5" display="inline" overflow="scroll" dspmath="mathml"><mrow><msubsup><mi/><mn mathvariant="normal">3</mn><mo>-</mo></msubsup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="9pt" height="16pt" class="svg-formula" dspmath="mathimg" md5hash="8c72af1edd6d67ed562efcaf5163d22b"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cp-17-2073-2021-ie00001.svg" width="9pt" height="16pt" src="cp-17-2073-2021-ie00001.png"/></svg:svg> , MSA (methanesulfonic acid), non-sea-salt SO <math xmlns="http://www.w3.org/1998/Math/MathML" id="M6" display="inline" overflow="scroll" dspmath="mathml"><mrow><msubsup><mi/><mn mathvariant="normal">4</mn><mrow><mn mathvariant="normal">2</mn><mo>-</mo></mrow></msubsup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="13pt" height="17pt" class="svg-formula" dspmath="mathimg" md5hash="4a53e7d1f00f4334c934356877052515"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cp-17-2073-2021-ie00002.svg" width="13pt" height="17pt" src="cp-17-2073-2021-ie00002.png"/></svg:svg> (nss <math xmlns="http://www.w3.org/1998/Math/MathML" id="M7" display="inline" overflow="scroll" dspmath="mathml"><mrow class="chem"><msubsup><mi mathvariant="normal">SO</mi><mn mathvariant="normal">4</mn><mrow><mn mathvariant="normal">2</mn><mo>-</mo></mrow></msubsup></mrow></math> <svg:svg ...

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