Chemistry record of icecore BER11C95_25 ...

• Main Authors: Ruth, Urs, Wagenbach, Dietmar, Oerter, Hans
• Format: Dataset
• Language: English
• Published: PANGAEA 2004
• Subjects: DEPTH, ice/snow; AGE; Age; Depth, top/min; Depth, bottom/max; Accumulation rate ice, water equivalent; δ Deuterium; δ18O, water; Deuterium excess; Fluoride; Methane sulfonic acid; Chloride; Nitrate; Sulfate; Sulfate, non-sea-salt; Particle concentration; Calcium; Ammonium; Conductivity, electrolytic; Ice drill; Calculated, CFA layer counting; Mass spectrometer VG SIRA 10; Calculated; Ion chromatography; Laser particle counter, KLOTZ; Continuous Flow Analysis; Glaciology @ AWI AWI_Glac; Antarc*; Antarctica; Berkner Island; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.400910; https://doi.pangaea.de/10.1594/PANGAEA.400910

A 181 m deep ice core drilled in 1994/95 on the south dome of Berkner Island, Antarctica, was analyzed for stable isotopes, major ions and microparticle concentrations. Samples for ion chromatography were prepared by using a novel technique of filling decontaminated sample from a device for continuous ice-core melting directly into the sample vials. The core was dated through identification of volcanic horizons and interpolative layer counting. The core, together with a similar core from the north dome, reveals a 1000 year history of relatively stable climate. Temporal variations in the two cores deviate from each other owing to changing patterns of regional-scale circulation; the best correspondence between them is found for MSA-. delta18O, accumulation rate and a sea-salt proxy show only negligible correlation, which suggests a complex meteorological setting. Increasing annual accumulation is observed for the last 100 years. A period of increased sea-salt concentrations started around AD 1405, as has also ... : Supplement to: Ruth, Urs; Wagenbach, Dietmar; Mulvaney, Robert; Oerter, Hans; Graf, Wolfgang; Pulz, H; Littot, Geneviève C (2004): Comprehensive 1000 year climatic history from an intermediate depth ice core from the south dome Berkner Island, Antarctica: methodics, dating, and first results. Annals of Glaciology, 39, 146-154 ...