Ozone content over the Russian federation in the first quarter of 2011

The review is compiled based on the results of the operation of the total ozone (TO) monitoring in the CIS and Baltic countries functioning in the operational regime at the Central Aerological Observatory (CAO). The monitoring system uses the data from the national network with M-124 filter ozonometers under methodological supervision of the Main Geophysical Observatory. The quality of functioning of the entire system is under operational control based on observations obtained from the OMI satellite equipment (NASA, the United States). The basic TO observation data for each month of the first quarter of 2011 and for the quarter as a whole are generalized. Preliminary estimates of a large ozone anomaly in the Russian Arctic region are under consideration. The information about the surface ozone observations in the central Russian region is also considered.