|Main Activity/ Remarks:
It is a study of the antarctic atmosphere using different techniques in the Antarctic region and South America.This cooperation will be directed toward ground-based experimental campaigns, Spectrophotometers, radiometers and technique launched on balloons, to increase understanding of the Antarctic atmosphere and the teleconection to South America. Within the Brazilian Antarctic Programme and with other South America countries participation : Argentina, Chile, Bolívia, Peru and Uruguai. We present results of the observations of the Stratospheric Ozone Depletion over Brasilian Antarctic Station Ferraz( 62.1°S ; 58.4°W) ,King George Island, Punta Arenas, Chile, the impact in the middle latitude ozone changes over Santa Maria , Brasil and correlation of total ozone detected by ground-base and satellites measurements, using the Brewer espectrophotometer, during the Spring of 2007. The UV radiation at Ferraz, Punta Arenas, Chile, La Paz, Bolívia and Santa Maria, Brasil we also measured daily with Brewer spectrophotometers and radiometers. An airglow all-sky imager has been operated at Ferraz (62° S, 58° W), during the winter 2007. Mesospheric gravity wave activities were observed by near infrared OH emissions (OH NIR). In the sub-Antarctic region, gravity wave activity with large annual and inter-annual variability has been reported. During the period with good weather condition it was observed forty five nights with a great variety of gravity wave spattern; which is a good statistic if one considers the local weather condition (frequently cloudy) around the Peninsula. In order to calculate the gravity wave parameters, we used background winds observed by MF radar installed at Rothera Station, Antarctica (67° S, 68° W). The data was obtained under collaboration with the Group of the Physical Sciences Division at the British Antarctic Survey (BAS). Antarctic Meteorology atictivit studies the effects of Antarctica in the Brazilian weather and the climatic variation in the Antarctic Peninsula; it also mantains automatic weather station with weather data and forecasts. The green house gases (eg.: N2O, O3, CFCs and CH4) and the NO2 and SO2 total column by Brewer spectrophotometer was measured. Study of effects of Ultraviolet Radiation on DNA of Marine Organisms in Admiralty Bay, King George Island, has been make during the summer 2007 and 2008. Study of the Ozone Layer and its dynamic relationship of low atmosphere and the upper atmosphere. Besides the natural variations of the atmosphere, man with the industrial development has collaborated with the decrease in the concentration of ozone in the stratosphere. The decrease of ozone causes an increase in UV-B radiation, which can influence the increase of CO² in the atmosphere and thus to global warming.