| Antarctica is the continent that has suffered the strongest variations in total ozone column and UV-B radiation, during the last decades, as consequence of the "ozone hole". Systematic measurements of total ozone column are being performed since the late 1950s at ground stations, and global coverage is available since the late 1970s, with measurements provided by instruments installed at different satellites (Nimbus-7, Meteor-3, Adeos, Earth-Probe, Gome). In 1988, the National Science Foundation (US) initiated the activities of the NSF UV Radiation Monitoring Network, installing three spectro-radiometers SUV-100/BSI in South Pole, Mc Murdo and Palmer Stations, and one in Ushuaia. Now, a time series of more than ten years is available for all stations.... |
