Surface layer ozone above the Weddell Sea during the Antarctic spring

• Published in: Antarctic Science
• Main Author: Yurganov, L.N.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 1990
• Subjects: Geology; Ecology, Evolution, Behavior and Systematics; Oceanography; Antarctic; The Antarctic; Weddell Sea; Weddell; Antarc*; Antarctic Science
• Online Access: http://dx.doi.org/10.1017/s0954102090000220; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102090000220

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.