National Ozone Monitoring Research & Education Center, Belarus State University, Minsk, Belarus National Report of the Republic of Belarus for the 7th WMO/UNEP Ozone Research Managers Meeting Geneva, May 2008

PION Instrument for measuring of total ozone amount in the atmosphere by means of registration of solar ultraviolet radiation at a number of wavelengths (up to 20) in the spectral region of 295 – 320 nm in dependence of total ozone value, weather conditions, and inclination angle of the Sun. Instrument for measuring of total ozone amount in the atmosphere by means of registration of solar ultraviolet radiation at a number of wavelengths (up to 20) in the spectral region of 295 – 320 nm in dependence of total ozone value, weather conditions, and inclination angle of the Sun. Possibility of total ozone observations at low sun inclination angles ( 8 ). Possibility of total ozone observations at low sun inclination angles ( 8 ). Available measurements of direct sun UV-B spectral distribution in 295 – 320 nm region. Available measurements of direct sun UV-B spectral distribution in 295 – 320 nm region. Fully automatic processes of measurement and data storage under the control of an external personal computer. Fully automatic processes of measurement and data storage under the control of an external personal computer. Precise automatic sun tracking system. Precise automatic sun tracking system. Portable construction. Portable construction. Possible application for treating the variety of other problems of ultraviolet atmospheric optics by reprogramming. Possible application for treating the variety of other problems of ultraviolet atmospheric optics by reprogramming. - a universal ultraviolet solar spectrophotometer-ozonometer Belarus Column ozone measurements Total ozone measurement accuracy Spectral range Resolution Wavelength stability Dynamic range Non-linearity coefficient Spectrum registration time Total ozone single registration time Total error of tracking the Sun Interface Operating temperature PowerDimensionsWeight ± 2%; nm; 0.35 nm; ± 0.01 nm; 10 4 ; 0.5%; 30 s; 5 – 10 s; 1;RS232C; C; 50 W; 700x300x200 mm; 15 Kg

PION - an universal ultraviolet solar spectrophotometer-ozonometer Column ozone measurements Belarus Samples of measurements

PION - an universal ultraviolet solar spectrophotometer-ozonometer Column ozone measurements Belarus a modified procedure of the extraterrestrial constant calibration taking account of changing measured diurnal column ozone data is proposed; a modified procedure of the extraterrestrial constant calibration taking account of changing measured diurnal column ozone data is proposed; testing and correction of the wavelength setting; testing and correction of the wavelength setting; Langley absolute calibration of the spectrometer; Langley absolute calibration of the spectrometer; tuning of the sun-tracking system. tuning of the sun-tracking system. The concept of self-calibration of network ozonometers, announced earlier, gains the further development.

Institute of Physics of National Academy of Sciences (IPNAS) Lidar station, Minsk Profile measurements of ozone and other gases Belarus

Belarus IPNAS Lidar station, Minsk

Profile measurements of ozone and other gases Belarus NOMREC Ozonometric station, Minsk. Total NO 2 measurements Total NO 2 measurements according NDSC standard. Modified MDR-23 monochromator.

PION-UV - an automatic ultraviolet spectroradiometer Belarus UV measurements Compact instrument for measuring of absolute intensities and spectral distribution of the direct and scattered UV solar radiation in the spectral range of nm. Compact instrument for measuring of absolute intensities and spectral distribution of the direct and scattered UV solar radiation in the spectral range of nm. Optimized to all kinds of UV radiation measurements (double holographic grating monochromator with dispersion subtraction); possible application for treating the variety of other problems of ultraviolet atmospheric optics by reprogramming. Optimized to all kinds of UV radiation measurements (double holographic grating monochromator with dispersion subtraction); possible application for treating the variety of other problems of ultraviolet atmospheric optics by reprogramming. Portable construction. Portable construction.

Belarus Information to the public Mapping and UV Index forecast generated specifically for different regions have been realized since UV Index short-term forecast for all territory of the republic as well as a map (for clear sky and assuming predicted overcast) is submitted to the National news agency BelТА on a daily basis and published in republican newspapers "Zviazda" and "Obozrevatel". These data are also available on the NOMREC site at and on the official site of the Republican weather center at A corresponding program automatically updating site information has been originated by the NOMREC. Two brochures named 20 years of the Montreal Protocol and UV radiation safe application were specially published in 2007 for a national meeting of environmental specialists dedicated to the 20 th anniversary of the Montreal Protocol.

Belarus Analysis & other research Daily values of surface temperature and total ozone (smoothed by 4 point moving average).

Belarus Surface Ozone DOAS Instrument with Zero Path TrIO-1 Optical scheme

Belarus Surface Ozone Concentration of surface ozone. Data received at the Minsk оzone station are marked with asterisks, those from Berezina National Park – with circles. Results of data smoothing with the averaging period for 15 days are brought. DOAS Instrument with Zero Path TrIO-1 The results of monitoring of the surface ozone concentration at both stations for 2007

13 M-124 upgrade M-124 ozonometer upgraded at Molodezhnaya Antarctic station Belarus

14 M-124 upgrade Belarus Total ozone data measured at Molodezhnaya Antarctic station

15 M-124 upgrade Belarus Relative spectral sensitivities

16 7, Kurchatov Str., Minsk, Belarus Phone/Fax: National Ozone Monitoring Research & Education Center Minsk, Belarus Thank You!