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Trace ion analysis for a suite of chemistry species (including chloride, sodium, sulphate, nitrate and methanesulphonic acid) has been performed on the deep Dome Summit South … (DSS) ice core from Law Dome, East Antarctica covering the period 9000 years before … present.
Sea ice plays an important role in ocean–atmosphere heat exchange, global albedo and the marine ecosystem. Knowledge of variation in sea-ice extent is essential in order to understand past climates, and to model possible future climate scenarios.
A compilation of sea salt data from East Antarctic ice cores are used to quantify the contribution of open ocean and sea ice to the sea salt budget. The ice cores used in this study are from Law Dome, Totten Glacier, Wilkes Land and Wilhelm II Land.
Coastal Antarctic sea salt aerosols are partitioned into two main sources, namely ocean sea spray and surface sea ice. The sea spray source is related to windiness over the surface ocean and the action of bubbles bursting.
The Antarctic ice sheet holds a wealth of information on past climate variability, locked away in successive layers buried by further snowfall. In the coastal regions of Antarctica, snowfall rates can be high enough to hold layers of climate data on monthly, or better, time resolution.