Bigler, Matthias; Wagenbach, Dietmar; Fischer, Hubertus; Kipfstuhl, Josef; Miller, Heinrich; Sommer, Stefan; Stauffer, Bernhard (2002). Sulphate record from a northeast Greenland ice core over the last 1200 years based on continuous flow analysis. Annals of Glaciology, 35, pp. 250-256. 10.3189/172756402781817158

Text bigler02ag.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (311kB) | Request a copy

A 150 m deep ice core from the low-accumulation area of northeast Greenland was analyzed for sulphate, calcium, sodium and electrolytical meltwater conductivity at a depth resolution of approximately 1 cm by continuous flow analysis (CFA). the calcium and sodium profiles are used to establish a relatively precise ice-core chronology by annual-layer counting back to AD 830. Inspection of the novel CFA method for sulphate revealed relative errors typically around 15%, but at least ±20 ng g–1, for concentrations 5130 ng g–1, and a current detection limit for routine ice-core analyses of 40 ng g–1. Annual sulphate peaks are shown to occur over almost the entire core, with only a small shift in seasonality between the modern and pre-industrial sections. Inspection of volcanic horizons allowed more accurate timing of these peaks and clear identification of calcium-rich events. Disregarding clear volcanic peaks, significant long-term changes of sulphate are only seen over the industrial period. However, a higher frequency of important volcanic inputs was identified around AD 1200.

Interest & Impact

Downloads

0 since deposited on 25 Jan 2024
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item