Surface layer ozone above the Weddell Sea during the Antarctic spring

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 p...

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Bibliographic Details
Published in:Antarctic Science
Main Author: Yurganov, L.N.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1990
Subjects:
Online Access:http://dx.doi.org/10.1017/s0954102090000220
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102090000220
Description
Summary: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.