ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-8-5393-2008 Typical distribution of the solar erythemal UV radiation over Slovakia Pribullová A. 1 Chmelík M. 2 Geophysical Institute of the Slovak Academy of Sciences, Stará Lesná, Slovakia Slovak Hydrometeorological Institute, Poprad-Gánovce, Slovakia 10 09 2008 8 17 5393 5401 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/8/5393/2008/acp-8-5393-2008.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/8/5393/2008/acp-8-5393-2008.pdf

Maps of solar erythemal ultraviolet (EUV) irradiance daily doses were created for every month with a horizontal resolution of 500 m at the geographical domain 47.15 N–49.86 N&times;16.94 E–22.81 E covering the territory of Slovakia. The cloud modification factor for the EUV radiation (<i>cmf</i><sub>UV</sub>) was modeled utilizing the relation between the cloud modification factor of global and EUV radiation. The maps of the <i>cmf</i><sub>UV</sub> factor were created by utilizing measurements of global irradiance performed at nine observatories during the period 1995–2004 and modeling of the <i>cmf</i><sub>UV</sub> dependence on altitude. Maps of the EUV irradiance daily dose corresponded to clear-sky conditions and EUV irradiance daily dose affected by average cloudiness were constructed for mean monthly total ozone, its upper and lower monthly limits, for two probability levels of snow cover occurrence as criteria for the snow effect incorporation in the model and for one day representing typical values for every month. The map-set can be regarded as an atlas of solar EUV radiation over Slovakia.

 References Bodeker, G. E. and McKenzie, R. L.: An algorithm for inferring surface UV irradiance including cloud effects, J. Appl. Meteorol., 35, 10, 1860–1877, 1996. Chmelík, M.: Determination of the long term total ozone average over Poprad-Gánovce station, In: Proceedings of the Quadrennial Ozone Symposium-Sapporo 2000, NASDA, Sapporo, 339–340, 2000. Eltermann, L.: UV, Visible and IR Attenuation for Altitudes to 50 km, AFCRL-680153, Air Force Cambridge Research Laboratories Environmental Research Paper, 285, Bedford, MA, USA, 68–74, 1968. Herman, J. R., Krotkov, N., Celarier, E., Larko, D., and Labow, G.: Distribution of UV radiation at Earth's surface from TOMS measured UV-backscattered radiances, J. Geophys. Res., 104, 12 059–12 076, 1999. Isaaks, E. H. and Srivastava, R. M.: An introduction to applied geostatistics, Oxford University Press, 561 pp., 1989. Koepke, P., De Backer, H., Bais, A., Curylo, A., Eerme, K., Feister, U., Johnsen, B., Junk, J., Kazantsidis, A., Krzyscyn, J., Lindfors, A., Olseth, J. A., den Outer, P., Pribullová, A., Schmalwiesser, A., Slaper, H., Staiger, H., Verdebout, J., Vuilleumier, L., and Weihs, P.: Modeling solar UV radiation in the past: comparison of algorithms and input data, in: Proceedings of SPIE, Vol. 6362 – Remote sensing of Clouds and the Atmosphere, edited by: Slusser, J. R., Schäfer, K., and Comerón, A., 636215, 2006. Lindfors, A. and Vuilleumier, L.: Erythemal UV at Davos (Switzerland) 1926–2003, estimated using total ozone, sunshine duration, and snow depth, J. Geophys. Res., 110, D02104, doi:10.1029/2004JD005231, 2005. Lucini, E., Cede, A., Piacentini, R., Villanueva, C., and Canziani, P. S.: Ultraviolet climatology over Argentina, J. Geophys. Res., 111, D17312, doi:10.1029/2005JD006580, 2006. Madronich, S.: UV radiation in the natural and perturbed atmosphere, in: Environmental effects of UV radiation, edited by: Tevini, M., Lewis Publishers, Bocca Raton, 17–69, 1993. Mayer, B. and Kylling, A.: The libRadtran radiative transfer package, Atmos. Chem. Phys., 5, 1855–1877, 2005. McKinlay, A. F. and Diffey, B. L.: A reference action spectrum for ultraviolet induced erythema in human skin. Human exposure to ultraviolet radiation: Risks and regulations, Elsevier Science, Amsterdam, 83–87, 1987. Meloni, D., Casale, G. R., Siani, A. M., Palmieri, S., and Cappellani, F.: Solar UV dose patterns in Italy, Photochem. Photobiol., 71, 6, 681–690, 2000. Pribullová, A.: Spectral UV aerosol optical thickness determined from the Poprad-Gánovce Brewer spectrophotometer observations, Contr. Geophys. Geod., 32, 3, 291–307, 2002. Pribullová, A. and Chmelík, M.: Effect of altitude and surface albedo variability on global UV-B and total solar radiation under clear-sky condition, Contr. Geophys. Geod., 35, 3, 281–298, 2005. Schmalwieser, A. W. and Schauberger, G.: A monitoring network for erythemally effective solar UV radiation in Austria: Determination of the measuring sites and visualization of the spatial distribution, Theor. Appl. Climatol., 69, 221–229, 2001. Tatalovich, Z., Wilson, J. P., and Cockburn, M.: A comparison of Thiessen-polygon, Kriging and Spline Models of UV exposure, Cartogr. Geogr. Inf. Science, 33, 3, 217–231, 2006. WMO: Scientific assessment of ozone depletion: 2002, Geneva, 2003. Xu, G. and Huang, X.: Calibration of broadband UV-radiometers – methodology and uncertainty evaluation, Metrologia, 40, S21–S24, 2003.