AustralieFrV1, Istex, Checkpoint, bibRecord, 000515

The Carrington event not observed in most ice core nitrate records

Identifieur interne : 000515 ( Istex/Checkpoint ); précédent : 000514; suivant : 000516

The Carrington event not observed in most ice core nitrate records

Auteurs : E. W. Wolff [Royaume-Uni] ; M. Bigler [Suisse] ; M. A. J. Curran [Australie] ; J. E. Dibb [États-Unis] ; M. M. Frey [Royaume-Uni, États-Unis] ; M. Legrand [France] ; J. R. Mcconnell [États-Unis]

Source :

Geophysical Research Letters [ 0094-8276 ] ; 2012-04.

RBID : ISTEX:946D6D47A1A32CDFCCD4126927F54F3A327D4A3E

Descripteurs français

Wicri :
- topic : Antarctique, Biomasse, Groenland.

English descriptors

Abstract

The Carrington Event of 1859 is considered to be among the largest space weather events of the last 150 years. We show that only one out of 14 well‐resolved ice core records from Greenland and Antarctica has a nitrate spike dated to 1859. No sharp spikes are observed in the Antarctic cores studied here. In Greenland numerous spikes are observed in the 40 years surrounding 1859, but where other chemistry was measured, all large spikes have the unequivocal signal, including co‐located spikes in ammonium, formate, black carbon and vanillic acid, of biomass burning plumes. It seems certain that most spikes in an earlier core, including that claimed for 1859, are also due to biomass burning plumes, and not to solar energetic particle (SEP) events. We conclude that an event as large as the Carrington Event did not leave an observable, widespread imprint in nitrate in polar ice. Nitrate spikes cannot be used to derive the statistics of SEPs.

Url:

https://api.istex.fr/document/946D6D47A1A32CDFCCD4126927F54F3A327D4A3E/fulltext/pdf

DOI: 10.1029/2012GL051603

Affiliations:

Australie, France, Royaume-Uni, Suisse, États-Unis
Californie, Canton de Berne, Nevada, New Hampshire
Berne
Université de Berne

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Le document en format XML

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<author><name sortKey="Bigler, M" sort="Bigler, M" uniqKey="Bigler M" first="M." last="Bigler">M. Bigler</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ammonium</term>
<term>Antarctic</term>
<term>Antarctic cores</term>
<term>Antarctica</term>
<term>Atmospheric nitrate</term>
<term>Biomass</term>
<term>Black carbon</term>
<term>British antarctic survey</term>
<term>Carboxylic acids</term>
<term>Carrington</term>
<term>Carrington event</term>
<term>Carrington signal</term>
<term>Central greenland</term>
<term>Coastal antarctica</term>
<term>Core nitrate</term>
<term>Core nitrate records</term>
<term>Data center</term>
<term>Different magnitudes</term>
<term>Different scales</term>
<term>Geophys</term>
<term>Gisp2</term>
<term>Greenland</term>
<term>Greenland cores</term>
<term>High latitudes</term>
<term>Large spikes</term>
<term>Larger events</term>
<term>Legrand</term>
<term>Mccracken</term>
<term>Middle atmosphere</term>
<term>National snow</term>
<term>Neem</term>
<term>Neem core</term>
<term>Nitrate</term>
<term>Nitrate concentration</term>
<term>Nitrate signal</term>
<term>Nitrate spikes</term>
<term>Other cores</term>
<term>Plume</term>
<term>Sep</term>
<term>Sharp spikes</term>
<term>Solar events</term>
<term>Solar proton events</term>
<term>Space studies board</term>
<term>Spike</term>
<term>Such events</term>
<term>Vanillic acid</term>
<term>Vegetation emissions</term>
<term>Vertical line marks</term>
<term>West antarctica</term>
<term>Windless bight</term>
<term>Zeller</term>
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<term>Antarctic</term>
<term>Antarctic cores</term>
<term>Antarctica</term>
<term>Atmospheric nitrate</term>
<term>Biomass</term>
<term>Black carbon</term>
<term>British antarctic survey</term>
<term>Carboxylic acids</term>
<term>Carrington</term>
<term>Carrington event</term>
<term>Carrington signal</term>
<term>Central greenland</term>
<term>Coastal antarctica</term>
<term>Core nitrate</term>
<term>Core nitrate records</term>
<term>Data center</term>
<term>Different magnitudes</term>
<term>Different scales</term>
<term>Geophys</term>
<term>Gisp2</term>
<term>Greenland</term>
<term>Greenland cores</term>
<term>High latitudes</term>
<term>Large spikes</term>
<term>Larger events</term>
<term>Legrand</term>
<term>Mccracken</term>
<term>Middle atmosphere</term>
<term>National snow</term>
<term>Neem</term>
<term>Neem core</term>
<term>Nitrate</term>
<term>Nitrate concentration</term>
<term>Nitrate signal</term>
<term>Nitrate spikes</term>
<term>Other cores</term>
<term>Plume</term>
<term>Sep</term>
<term>Sharp spikes</term>
<term>Solar events</term>
<term>Solar proton events</term>
<term>Space studies board</term>
<term>Spike</term>
<term>Such events</term>
<term>Vanillic acid</term>
<term>Vegetation emissions</term>
<term>Vertical line marks</term>
<term>West antarctica</term>
<term>Windless bight</term>
<term>Zeller</term>
</keywords>
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<term>Biomasse</term>
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<front><div type="abstract">The Carrington Event of 1859 is considered to be among the largest space weather events of the last 150 years. We show that only one out of 14 well‐resolved ice core records from Greenland and Antarctica has a nitrate spike dated to 1859. No sharp spikes are observed in the Antarctic cores studied here. In Greenland numerous spikes are observed in the 40 years surrounding 1859, but where other chemistry was measured, all large spikes have the unequivocal signal, including co‐located spikes in ammonium, formate, black carbon and vanillic acid, of biomass burning plumes. It seems certain that most spikes in an earlier core, including that claimed for 1859, are also due to biomass burning plumes, and not to solar energetic particle (SEP) events. We conclude that an event as large as the Carrington Event did not leave an observable, widespread imprint in nitrate in polar ice. Nitrate spikes cannot be used to derive the statistics of SEPs.</div>
</front>
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The Carrington event not observed in most ice core nitrate records

The Carrington event not observed in most ice core nitrate records

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri