Law Dome 90ky trace chemistry record of trace ions in ice cores

These data were collected from the drilling site at Dome Summit South (DSS) on Law Dome in East Antarctica. The DSS site is on Law Dome, a prominent ice dome located about 120 km from Casey Station. The site receives a high rate of snow accumulation which helps create a very detailed climate record.DSSmain_chemistry_data is the measured chemical concentrations of trace ions for the ‘DSS’ (Dome Summit South) ice core. Trace chemistry samples are prepared using clean techniques (Curran et al., 1998) and analysed based on methods described by Curran and Palmer (2001) using Dionex ICS 3000 ion chromatograph, measuring anions (Cl, NO3 and SO4) and cations (Na, NH4, K, Mg and Ca) to ppb levels.