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Surface layer ozone above the Weddell Sea during the Antarctic spring

Published online by Cambridge University Press:  14 May 2004

L.N. Yurganov
Affiliation:
Arctic and Antarctic Research Institute, 199226 Leningrad, USSR

Abstract

Ozone concentrations in the atmospheric surface layer above the Weddell Sea during the Antarctic spring season of 1989 varied significantly. Lower levels of ozone were associated with colder Antarctic air masses and higher values with warmer mid-latitude air. The lowest ozone concentration (1 to 2 ppbv) was measured in the centre of a low pressure system. A definite diurnal variation of tropospheric ozone observed during clear days with low total ozone amount (177 matm cm) may be interpreted as a consequence of the occurrence of photochemical reactions under conditions of increased ultraviolet solar radiation.

Type
Papers—Atmospheric Sciences
Copyright
© Antarctic Science Ltd 1990

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