Stratospheric ozone in the American South cone and Antarctic Ozone Hole 1992-2007

• Main Authors: Claudio Casiccia, S. Félix, Zamorano Roberta Viana
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Antarctic; The Antarctic; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.610.2222; http://www.atmosp.physics.utoronto.ca/SPARC/SPARC2008GA/Posters/SessionB_P12_A48_Casiccia.pdf

During the recent decades there has been an increasing concern related to ozone layer and solar ultraviolet radiation, (UV-B: 280-320 nm), reaching the surface of the earth. The Antarctic Ozone Hole (AOH) is a phenomenon of strong ozone depletion in the Antarctic stratosphere, this is a consequence of heterogeneous chemical reactions and dynamical processes which enhance ozone losses by reactions o o with chlorine. Punta Arenas (53.0 S, 70.9 W) is the southernmost city in Chile with a population of approximately 120000. Due to its location, well within the area affected by the Antarctic Ozone Hole the ozone distribution is affected in different altitudes. Systematic observation of ozone and UV-B with a Brewer spectrophotometer have been made in order study during the ozone hole conditions. In addition, the vertical Punta Arenas, Chile (53.2S;70.9W) is the southern most Chilean city, with about 120000 inhabitants.