Michel Legrand

TL;DR: The recent completion of drilling at Vostok station in East Antarctica has allowed the extension of the ice record of atmospheric composition and climate to the past four glacial-interglacial cycles.

TL;DR: In this paper, a detailed comparison between Greenland (Dome Summit) and Antarctic (Vostok) records provides new insight on a potential link between northern and southern patterns, and the sensitivity of Greenland and Antarctic marine input to climate variations of small and large amplitude is compared, and a corresponding estimation is made for the aeolian contribution.

TL;DR: In this paper, the major ions contained in the Greenland Ice Sheet Project 2 (GISP 2) ice core from the present to ∼674 A.D. were analyzed to yield an environmental reconstruction for this period that includes a description of nitrogen and sulfur cycling, volcanic emissions, sea salt and terrestrial influences.

TL;DR: In this article, an estimate based on Neumayer mineral dust concentrations suggests that an average of less than 5% of the observed atmospheric nitrate load may be associated with continental tropospheric sources, while a separate estimate of 210Pb records implies a much higher proportion of up to 60%.

TL;DR: The Carrington Event of 1859 is considered to be among the largest space weather events of the last 150 years as discussed by the authors, but only one out of 14 well-resolved ice core records from Greenland and Antarctica has a nitrate spike dated to 1859.