Particles in the Polar Stratospheres


SINCE 1971, the University of Wyoming's atmospheric physics group has been monitoring the stratospheric concentration of submicron particles globally using the balloon sounding technique with a dustsonde1. Included in this programme are annual soundings from the ice island T-3, at present at about 85° N, and from McMurdo Station (78° S) and South Pole Station (90° S) in Antarctica. For reasons of accessibility measurements are made in both polar regions at approximately the same time—northern hemisphere winter. Thus the measurements were carried out at T-3 during December 1971 and December 1972 and at the South Pole during January 1972 and January 1973. We describe the results here.

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HOFMANN, D., ROSEN, J., PEPIN, T. et al. Particles in the Polar Stratospheres. Nature 245, 369–371 (1973).

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