Schematic diagram (IMAGE)
Caption
Schematic diagram. beryllium-7 produced by cosmic rays in the upper atmosphere is transported to near-ground levels via folding of the tropopause associated with low- and high-pressure systems, and is also transported near the surface in coastal regions by katabatic winds descending the slopes of the Antarctic continent.
Credit
Naohiko Hirasawa from National Institute of Polar Research, Japan
Usage Restrictions
News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only.
License
Original content