Ozone and UV-B radiation

Martin Dubrovsky

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C O N T E N T S  

    Last modified: April 13, 1998 (Sorry for the imperfections, I am occassionaly working on it

key words: total ozone, erythemal ultraviolet radiation

Contents

• General information
• Library (references to papers by Czech authors)
• Links to other sites (to be ordered)
• • Meetings

Motivation

I am engaged in the joint grant project of the Czech Hydrometeorological Institute (Karel Vanicek, Martin Stanek, Michal Janouch) and Institute of Physics of Atmosphere (Otakar Skoloud, Martin Dubrovsky). The project aims at:

1. monitoring of biologically active UV-B solar radiation
2. assessment of relations between total ozone and UV-B radiation
3. creation of the information system for operative reports on UV-B levels and exposure times recommended for population.

Questions that interest me:

• the relation between the total ozone and atmospheric circulation
• the relation between (UV-B radiation) and (solar zenith angle, total ozone, clouds and turbidity of the atmosphere)

Presently ...

... I am processing time series of 10-minute sums of UV-B radiation measured by RB-Biometers simultaneously in two locations: Hradec Kralove (285 m a.s.l.; the seat of the Solar and Ozone Observatory of the Czech Hydrometeorological Institute) and Milesovka (836 m a.s.l.; the observatory /managed by Institute of Atmospheric Physics/ on the top of the isolated hill northwest from Prague). The analysis of the series obtained during one year (96/8 - 97/7) is focused on

1. comparison of the UV-B radiation regime in the two locations, and
2. determining the dependence of UV-B radiation on total ozone and solar zenith angle.

More details:

• The results will be presented in the forthcoming EGS General Assembly in Nice (April 20-24, 1998). Here you can read some results obtained in 1997.
• contribution for the EGS General Assembly, Nice, 1998

UV index

the WMO (World Meteorological Organization) defines: UVI (UV index) is the solar noon erythemally weighted dose rate converted from units of mW.m^-2 to a unitless value. The WMO standard UV index unit is equal to 25 mW m^-2 [Long et al., 1996, Ultraviolet Index Forecasts Issued by the National Weather Service. Bulletin of American Meteorological Society, 77, 729-748]

Library (references to papers by Czech authors)

• Vanicek K., 1998: Forecasting of the UV-Index in the Czech Hydrometeorological Institute. [in Czech] Meteorol. Zpr., 51, 129-135.
• Dubrovsky M., Janouch M., 1998: Analysis of UV-B irradiances measured simultaneously at two stations in Czechia. in: Abstracts of the European Conference on atmospheric UV radiation, Helsinki, Finland, June 29 - July 2, 1998, p.65.
• Vanicek K., 1998: Forecasting of UV-index in the Czech Republic. in: Abstracts of the European Conference on atmospheric UV radiation, Helsinki, Finland, June 29 - July 2, 1998, p.52-53.
• Vanicek K., 1988: Differences between Dobson and Brewer observations of total ozone at Hradec Kralove. In: Atmospheric Ozone (Proc. XVIII Quadrennial Ozone Symposium, L'Aquila, Italy, 12-21 Sept. 1996), p.81-84..
• Stanek M., 1998: PC Software for Dobson total ozone data reduction DOBSON and DOBSTOOL. In: Atmospheric Ozone (Proc. XVIII Quadrennial Ozone Symposium, L'Aquila, Italy, 12-21 Sept. 1996), p.975-978.
• Stanek M. and Vanicek K., 1998: Application of Dobson zenith polynomials for different instruments, locations and seasons. In: Atmospheric Ozone (Proc. XVIII Quadrennial Ozone Symposium, L'Aquila, Italy, 12-21 Sept. 1996), p.979-982.
• Dubrovsky M. and Kalvova J., 1998: The daily total ozone: the mean annual cycle and correlation with meteorological conditions. In: Atmospheric Ozone (Proc. XVIII Quadrennial Ozone Symposium, L'Aquila, Italy, 12-21 Sept. 1996), p.33-36.
• Halenka T., Mlch P. 1996 On the relationship between vertical ozone distribution and the synoptic situation. Studia geoph. et geod. 40, 192-215.
• VANICEK K. 1996: Operational nowcasting of ultraviolet solar radiation levels in CHMI [in Czech; Operativní zpravodajství o úrovni ultrafialoveho slunecního zárení v CHMU]. Meteorol. Zpr. 49, 47-52.
• Kalvova J. and Dubrovsky M., 1995: Assessments of the limits between which daily average values of total ozone can normally vary. [in Czech] Meteorologicke Zpravy, 48, 9-17. Mlch P., Lastovicka J. 1995 Total ozone response to major geomagnetic storms and changes in meteorological situations. Studia Geoph. et Geod. 39, 189-207
• Vanicek K. 1995: Actual condition of the ozone layer and first results of monitoring of erythemal UV solar radiation in Czech Republic [in Czech]. Meteorol.Zpr. 48, 77-82.
• Mlch P. 1994 Total ozone response to major geomagnetic storms during non-winter period. Studia Geoph. et Geod. 38, 423-429 .
• Metelka L. 1994: Projevy QBO v rade mesícních prumeru ozonu ze stanice Hradec Králové. MZ 47, 21-25
• Janouch M. 1994: Rust ultrafialového zárení jako dusledek zmen v ozonové vrstve. MZ, 47, 1-6
• Halenka T., Lastovicka J., Radicella S. 1994 The effect of the passage of cold fronts on the vertical distribution of ozone at the CHMI observatory at Prague-Libus. QJRMS, 120, 1415-1423.
• Kalvova J., Zikmunda O., Bednar J., 1993: Stratosfericky ozon. [in Czech] Vod. Hospod. Ochr. Ovzd., 14, c.7-8, 22-28.
• Vanicek K. 1992: Globální zmeny ozónové vrstvy a její projevy nad Ceskoslovenskem. Meteorologicke Zpravy, 45, p.97
• Vanicek K. 1992: Global changes in the ozone layer as detected over Czechoslovakia. (Information of the delegation of the Czech and Slovak Federal Republic for the United Nations Conference on Environment and Development, Rio de Janeiro, June 1992).CïHMU, Praha.
• Vanicek K., Kalvova J., Hajciar M. 1992 Analyses of time changes of total ozone in Czechoslovakia. National Climate Program of CSFR (Národní klimaticky program) vol 6, 58pp.
• Stanek M., Vanicek K.. 1992 Comparison of recalculated Dobson and TOMS total ozone at Hradec Králové, Czechoslovakia, 1978-1990. In: Proc. Quadrennial Ozone Symposium, Charlottesville, Virginia, USA, p.229-231
• Vanicek K. 1992 Difference between recalculated and original Dobson total ozone data from Hradec Králové, Czechoslovakia, 1962-1990. In: Proc. Quadrennial Ozone Symposium, Charlottesville, Virginia, USA, p.229-231.
• Vanicek K., 1991: Recalculated total ozone data Hradec Kralove, 1962-1990. Praha, CHMU, 1991. 34 pp.

Links (to be ordered...):

Ozone is one of the hottest meteorological issue at these days. You can find many web pages on INTERNET. Here are some of them:

other links:

• Index of /products/stratosphere/tovsto/archive/sp/
• total ozone data (TOMS) - southern hemisphere
• CPC - Stratosphere: NOAA/EPA UV Index CPC Products
• Ozone Hole over Antarctica

UV links:

• the link taken from Koepke et al., ECUV conference, Helsinki, 1998 (page 51 of the proceedings)
• radiative transfer model (the address was taken from Helsinki's proceedings, p.67)
• UV index forecast for Austria
• www.chmi.cz/meteo/ozon/pred1.html (by Janouch and Smitka)

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Meetings

• ECUV (European Conference on Atmospheric UV Radiation)
• XVIII Quadrennial Ozone Symposium '96 University of L'Aquila, Italy, September 12-21,1996
• EGS98, Nice, April 20-24, 1998 (http://www.copernicus.org/EGS/egsga/75.htm)