INCT-APA – Annual Activity Report 2009 | 17 2 CLIMATOLOGY OF THE OZONE LAYER AND THE IMPACT OF UV RADIATION IN THE ENVIRONMENT Neusa Paes Leme 1 *; Damaris K Pinheiro 2 ; Cláudio Casiccia 3 ; Eduardo J. Quel 4 ; Elian Wolfran 4 ; Francesco Zaratti 5 1 Laboratório de Variáveis Ambientais Tropicais – LAVAT, Instituto Nacional de Pesquisas Espaciais – INPE, Centro Regional do Nordeste – CRN, Natal, Brazil 2 Laboratório Espacial Sul – LASCESM, Universidade Federal de Santa Maria – UFSM, Rio Grande do Sul, Brazil 3 Laboratorio de Ozono , Universidad de Magallanes – UMAG, Punta Arenas, Chile 4 CEILAP (CITEFA-CONICET), Buenos Aires, Argentina 5 Universidad Mayor de San Andres, Laboratorio de Ozono e RUV, La Paz, Bolivia *e-mail: neusa_paesleme@yahoo.com.br Measurements of UV Radiation Continuous measurements of UV radiation were held throughout the year using a 4-channel radiometer that measures UV-B, UV-A radiation and PAR (Photosintetically Active) very important for biological studies at various latitudes: in Ferraz, King George Island in PuUniverinta Arenas, southern Chile in La Paz, Bolivia, and Santa Maria, Rio Grande do Sul. Were recorded several events of increased UV radiation during the presence of the ozone hole. In EACF increase of up to 150% in the incidence of UV radiation in the soil was recorded in 2009. Measurement of Total Column Ozone, Sulfur Dioxide (SO 2 ) and Nitrogen Dioxide (NO 2 ) Continuous measures throughout 2009 in various latitudes: in Ferraz, King George Island, Punta Arenas, southern Chile, Rio Gallegos, Argentina, in La Paz, Bolivia, and Santa Maria, Rio Grande do Sul, Brazil. In implementing these measures, we used the Brewer Spectrophotometer. Te Brewer spectrophotometer in Rio Gallegos, Argentina, operated during the year 2009. Shutting down during the winter because it has limitation to operate at temperatures below zero (not have internal heaters). 0 0 30 30 -90 -90 -60 -60 -30 -30 -30 -30 60 60 -60 -60 90 90 120 120 150 150 -150 -150 -120 -120 NOAA HYSPLIT MODEL Backward trajectory ending at 00 UTC 08 Oct 07 CDC1 Metereological Data Meters AGL Source at 29.40 S 58.82 W 12 00 10/07 24000 23500 22500 21500 20500 10/06 10/05 10/04 10/03 10/02 12 00 12 00 12 00 12 00 12 00 Source 1 lat.: -29.4 lon.: -53.82 height: 24000 m AGL Job ID:364290 JobStart: Mon May 5 19:41:30 GMT 2008 Duration: 144 hrs Meteo Data: reanalysis Trajectory Direction: Backward Vertical Motion Calculation Method: Isentropic Produced with HYSPLIT from the NOAA ARL Website (http://www.arl.noaa.gov/ready/) Figure 1. Backward isentropic trajectory for the day 10.08.2007 on the Southern Space Observatory, Brazil, developed by the HYSPLIT model, obtained by site http://www.arl.noaa.gov/ready/ open/traj.html http://dx.doi.org/10.4322/apa.2014.002