Antarctic Ozone Depletion and Ozone Measurements in Brazil

摘要

Recent satellite and ground based observations of depletion of atmospheric ozone in Antarctic region during spring (October) have attracted world wide attention of scientists due to possible global environmental implications. Measurements of the total atmospheric ozone started at this Institute at Cachoeira Paulista (22.7 deg S, 45.0 deg W), SP, using a Dobson spectrophotometer in 1974. In 1978, another station was added at Natal (5.8 deg S, 35.2 deg W), RN, in collaboration with the National Oceanic and Atmospheric Administration, Boulder, Co. Both the stations carry out regular total ozone measurements and with Huancayo (12.0 deg S, 65.3 deg W), Peru, and Buenos Aires (34.5 deg S, 48.7 deg W), Argentina, form a chain of four stations in the South America. A comparative study of the ozone measurements in Brazil in relation to other South America and Antarctic stations is presented. It is shown that the Antarctic ozone depletion does not extend to the middle and low latitudes.