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Immediate report of Victoria University of Wellington Antarctic Expedition 1989-90: VUWAE 34

Abstract

Abstract

In determining the effect of enhanced UV levels on Antarctic life, it is important to know the UV radiance under the sea ice where most Antarctic organisms live. The underice radiance is controlled by the transmission of the ice and here we report the results of these measurements. The transmission is largest early in the season, and drops by a factor of 10 by mid-November. This result implies that life under the ice has always experienced its major UV dose in October, a dose that can rise by a factor of 10 during the presence of the deepest ozone holes observed.