10Be measurements on polar ice: Comparison of arctic and antarctic records

A new semicontinuous 10Be record from Byrd station, Antarctica, is presented and compared with the Camp Century record from Greenland. Although the comparison of the Holocene parts of the two profiles is seriously hampered by lack of a reliable time scale for the Byrd core, there is evidence for common features. The establishment of the existence of global features in 10Be records is of great importance for the interpretation of 10Be concentrations in terms of production rate changes due to helio- and geomagnetic modulation. In addition 10Be time marks could be used to synchronize the climatic records of the Northern and Southern hemispheres. (orig.)