National Ozone Monitoring Research & Education Center, National Ozone Monitoring Research & Education Center, Belarus State University,Belarus State University,

Minsk, BelarusMinsk, Belarus

National Report National Report of the Republic of Belarusof the Republic of Belarus

for the for the 77th WMO/UNEP th WMO/UNEP Ozone Research Managers MeetingOzone Research Managers Meeting

Geneva, 19-21 May 2008Geneva, 19-21 May 2008

PION Instrument for measuring of total ozone amount in the atmosphere by means of registration of solar ultraviolet 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 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.value, weather conditions, and inclination angle of the Sun. Possibility of total ozone observations at low sun inclination angles (Possibility of total ozone observations at low sun inclination angles ( 8 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

BelarusBelarus Column ozone measurementsColumn ozone measurements

Total ozone measurement accuracyTotal ozone measurement accuracySpectral rangeSpectral range

ResolutionResolutionWavelength stabilityWavelength stability

Dynamic rangeDynamic rangeNon-linearity coefficientNon-linearity coefficient

Spectrum registration timeSpectrum registration timeTotal ozone single registration timeTotal ozone single registration time

Total error of tracking the SunTotal error of tracking the SunInterfaceInterface

Operating temperatureOperating temperaturePowerPower

DimensionsDimensionsWeightWeight

± 2%;± 2%;295-320 nm;295-320 nm;0.35 nm;0.35 nm;± 0.01 nm;± 0.01 nm;101044;;0.5%;0.5%;30 s;30 s;5 – 10 s;5 – 10 s;1’;1’;RS232C;RS232C;-20 +40-20 +4000 C; C;50 W;50 W;700x300x200 mm;700x300x200 mm;15 Kg15 Kg

PION - an universal ultraviolet solar spectrophotometer-ozonometer

Column ozone measurementsColumn ozone measurementsBelarusBelarus

7 8 9 10 11 120.00

0.05

0.10

0.15

0.20

0.25

0.30

No evident enfluence of cloudiness on total ozone values.Total ozone slightly rises. Frequent phenomenon

Signals of the sun tracking system,frequent clouds

Total ozone record 05.10.1997, Minsk, Belarus

Total ozone, atm-cmSignal of the sun tracking system, relative units

GMT, hours

Samples Samples of measurementsof measurements

4 6 8 10 12 14 160,00

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Ozone, atm-cmAir mass

GMT, h

Total ozone data for 20.08.2001, Voeikovo

4 6 8 10 12 14 160,00

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Air massOzone, atm-cm

Total ozone data for 23.08.2001, Voeikovo

4 6 8 10 12 140,00

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0,35

0,40

1

2

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GMT, h

Air massOzone, atm-cm

Total ozone data for 24.08.2001, Voeikovo

PION - an universal ultraviolet solar spectrophotometer-ozonometer

Column ozone measurementsColumn ozone measurementsBelarusBelarus

8 10 12 14 16 1822 0

24 0

26 0

28 0

30 0

32 0

34 0

36 0

D is tor ted d a ta

C o r rec ted da ta

To

tal

oz

on

e,

Do

bs

on

un

its

G M T, h o ur

1

2

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5

-v

alu

e

a modified procedure of the a modified procedure of the extraterrestrial constant calibration taking extraterrestrial constant calibration taking account of changing measured diurnal account of changing measured diurnal column ozone data is proposed;column ozone data is proposed;

testing and correction of the wavelength testing and correction of the wavelength setting;setting;

Langley absolute calibration of the Langley absolute calibration of the spectrometer;spectrometer;

tuning of the sun-tracking system.tuning of the sun-tracking system.

The concept of self-calibration of network The concept of self-calibration of network ozonometers, announced earlier, gains the ozonometers, announced earlier, gains the further development.further development.

Institute of Physics of National Academy of Sciences (IPNAS) Lidar station , Minsk

Profile measurements of ozone and other gasesProfile measurements of ozone and other gasesBelarusBelarus

Profile measurements of ozone and other gasesProfile measurements of ozone and other gasesBelarusBelarusIPNAS Lidar station , Minsk

Profiles of ozone concentration, Minsk, 2007

0.0

10.0

20.0

30.0

40.0

0.E+00 2.E+12 4.E+12 6.E+12

1/(cm^3)

Alt

itu

de,

km 5-11-07

27-09-07

27-03-07

24-03-07

Profile measurements of ozone and other gasesProfile measurements of ozone and other gasesBelarusBelarusNOMREC Ozonometric station , Minsk. Total NO2 measurements

Total NOTotal NO22 measurements according measurements according

NDSC standard. NDSC standard. Modified MDR-23 monochromator. Modified MDR-23 monochromator.

PION-UV - an automatic ultraviolet spectroradiometer

BelarusBelarus UV measurementsUV measurements

Compact instrument for measuring of absolute intensities and spectral distribution of the Compact instrument for measuring of absolute intensities and spectral distribution of the direct and scattered UV solar radiation in the spectral range of 280 - 450 nm.direct and scattered UV solar radiation in the spectral range of 280 - 450 nm.

Optimized to all kinds of UV radiation measurements (double holographic grating Optimized to all kinds of UV radiation measurements (double holographic grating monochromator with dispersion subtraction); possible application for treating the variety of monochromator with dispersion subtraction); possible application for treating the variety of other problems of ultraviolet atmospheric optics by reprogramming.other problems of ultraviolet atmospheric optics by reprogramming. Portable construction.Portable construction.

290 310 330 350 370 390 410 430 4500

5

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20

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60

80

100

120

Irrad

ianc

e (

W/ c

m

2 nm

)

Wavelength (nm)

BelarusBelarus Information to the publicInformation to the public

Mapping and UV Index forecast generated specifically for different regions have Mapping and UV Index forecast generated specifically for different regions have been realized since 2006. been realized since 2006.

UV Index short-term forecast for all territory of the republic as well as a map (for 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 clear sky and assuming predicted overcast) is submitted to the National news agency Belagency BelТАТА on a daily basis and published in republican newspapers on a daily basis and published in republican newspapers "Zviazda" and "Obozrevatel"."Zviazda" and "Obozrevatel".

These data are also available on the NOMREC site at These data are also available on the NOMREC site at http://ozone.bsu.by and on and on the official site of the Republican weather center at the official site of the Republican weather center at http://www.pogoda.by. A . A corresponding program automatically updating site information has been corresponding program automatically updating site information has been originated by the NOMREC. Two brochures named “20 years of the Montreal originated by the NOMREC. Two brochures named “20 years of the Montreal Protocol” and ”UV radiation safe application” were specially published in 2007 for Protocol” and ”UV radiation safe application” were specially published in 2007 for a national meeting of environmental specialists dedicated to the 20a national meeting of environmental specialists dedicated to the 20thth anniversary anniversary of the Montreal Protocol. of the Montreal Protocol.

BelarusBelarus Analysis & other researchAnalysis & other research

Daily values of surface temperature and total ozone (smoothed by 4 point moving average).Daily values of surface temperature and total ozone (smoothed by 4 point moving average).

300

320

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420

15.5 29.5 12.6 26.6 10.7 24.7 7.8

284

286

288

290

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298

300

T, K

Tot

al o

zone

, DU Total ozone

Date

2006

Surface temperature

15.5 29.5 12.6 26.6 10.7 24.7 7.8280

290

300

310

320

330

340

350

360

288

290

292

294

296

298

Total ozone

Tot

al o

zone

, DU

2007

Date

T, K

Surface temperature

BelarusBelarus Surface OzoneSurface Ozone

DOAS Instrument with Zero Path TrIO-1

Optical schemeOptical scheme

Spectral range 210-350 nm

Excitation quartz halogen lamp + interference filter

Detecting system double monochromator + photomultiplier tube

Dispersion 1,3 nm/mm

“Open- long- path” length 150 m

Detectivity limit 1.5 ppb

BelarusBelarus Surface OzoneSurface Ozone

Concentration of surface ozone. Data received at the Minsk Concentration of surface ozone. Data received at the Minsk ооzone station are zone station are marked with asterisks, those from Berezina National Park – with circles. Results of marked with asterisks, those from Berezina National Park – with circles. Results of

data smoothing with the averaging period for 15 days are brought.data smoothing with the averaging period for 15 days are brought.

DOAS Instrument with Zero Path TrIO-1

30 60 90 120 150 180 210 240 270 300 330 360

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80

Julian day

[O3], ppb

The results of monitoring of the surface ozone concentration at both stations for 2007 The results of monitoring of the surface ozone concentration at both stations for 2007

13

M-124 upgradeM-124 upgrade

M-124 ozonometer upgraded at Molodezhnaya Antarctic station

BelarusBelarus

14

M-124 upgradeM-124 upgradeBelarusBelarus

Total ozone data measured at Molodezhnaya Antarctic station Total ozone data measured at Molodezhnaya Antarctic station

0 5 10 15 20 25 30 35 40 45 50 55 60 65

250

300

serial number

To

tal

ozo

ne

, D

U

OMI M-124M

31.12.06 31.01.07 13.02.07

17.12.06

15

M-124 upgradeM-124 upgradeBelarusBelarus

300 302 304 306 308 310 312 314 316 318 320 322 324 326 328 3300

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140S

, r

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nm

Relative spectral sensitivitiesRelative spectral sensitivities

16

7, Kurchatov Str., Minsk, Belarus7, Kurchatov Str., Minsk, BelarusPhone/Fax: 375 172 781795Phone/Fax: 375 172 781795

nomrec@bsu.bynomrec@bsu.by

National Ozone Monitoring National Ozone Monitoring Research & Education Center Research & Education Center

Minsk, BelarusMinsk, Belarus

Thank You!Thank You!