Results of ozone microwave measurements in the high latitude stratosphere during cold winters 1999/2000 and 2002/2003

It is known, that as a result of strengthening wave activity in a winter high latitude atmosphere of Northern hemisphere the disturbance of spatial-temporary structure of temperature and ozone fields is observed. Most significant display of such disturbances is registered during the winter sudden stratospheric warmings, which are accompanied by increase of the ozone content. Use of millimeter wave range for research of the similar phenomena gives known advantages in comparison with optical and infrared wave ranges, since the microwave observations can be carried out every day and the quality of observation results depends on weather conditions less. During the last four years we carried out regular measurements of variability of an ozone layer in stratosphere of high latitudes by microwave technique. The special interest is represented by results received in winter seasons, when the decreased temperatures of the lower and middle stratosphere were marked. In these years the highest ozone loss were registered in the lower stratosphere inside polar vortex which remains stable long time in comparison with warmer winter.