ATMOSPHERIC ANALYSIS OF THE EVENTS SECONDARY EFFECT OF ANTARCTIC OZONE HOLE OVER THE SOUTH OF BRAZIL IN 2012. PART 2: SYNOPTIC VERIFICATION OF THE TROPOSPHERE DURING THE EVENTS

In this work, it was verified the synoptic condition in the troposphere of the two events of the Influence of the Antarctic Ozone Hole that occurred over southern Brazil in the year 2012. Both events showed average drop of the 12.1 ± 2.3 in the ozone content in relation to their monthly climatological averages obtained through the data of the Brewer Spectrophotometer MKIII 167 installed on the southern Space Observatory-OESCRSINPE-MCTI and instrument of OMI satellite from NASA. Through wind maps at 250 hPa and 500 hPa and Omega in sea level pressure and thickness between 1000 and 500 hPa in addition to GOES 12 satellite images enhanced infrared, it was observed that the synoptic troposferica condition associated with passage of a wide area of atmospheric stability, without significant cloud cover, related to the remoteness of the subtropical jet stream to the Atlantic Ocean, superimposed by a large high-pressure systems after a few days of the passage of a frontal system stationary, favored the stratospheric transport causing such falls, arriving in one of the cases the configure Atmospheric blocking condition, suggesting that the more intense is the stable air mass front post, the greater the drop in ozone content.