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Summaries of ozone measurements made at Little America, Antarctica during 1957 and 1958 are presented. Data include both total ozone observations made with a Dobson Ozone Spectrophotometer and surface ozone concentrations measured with the automatic ozone recorder developed by Regener. Wind and ozone roses were constructed to examine the variation of surface ozone with wind direction, and in addition the net meridional transport of surface ozone was computed for each month for a year. The computed northward transport of surface ozone during the winter months of June through September suggests a model for atmospheric circulation in the Antarctic. Assuming no ozone is created or destroyed by photo-chemical or other means during this dark period and that Little America is representative of its latitude, steady-state conditions require that the low-level outflow of ozone be compensated by inflow at other levels. Both the lower stratospheric circumpolar jet inhibiting meridional transport and the stab...

A PRELIMINARY REPORT ON OZONE OBSERVATIONS AT LITTLE AMERICA, ANTARCTICA1

A PRELIMINARY REPORT ON OZONE OBSERVATIONS AT LITTLE AMERICA, ANTARCTICA¹