Articles | Volume 16, issue 23
Atmos. Chem. Phys., 16, 15049–15074, 2016
https://doi.org/10.5194/acp-16-15049-2016

Special issue: Twenty-five years of operations of the Network for the Detection...

Atmos. Chem. Phys., 16, 15049–15074, 2016
https://doi.org/10.5194/acp-16-15049-2016

Research article 06 Dec 2016

Research article | 06 Dec 2016

Validation of satellite-based noontime UVI with NDACC ground-based instruments: influence of topography, environment and satellite overpass time

Colette Brogniez et al.

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Cited articles

Antón, M. and Loyola, D.: Influence of cloud properties on satellite total ozone observations, J. Geophys. Res., 116, D03208, https://doi.org/10.1029/2010JD014780, 2011.
Antón, M., Piedehierro, A. A., Alados-Arboledas, L., Wolfran, E., and Olmo, F. J.: Extreme ultraviolet index due to broken clouds at a midlatitude site, Granada (southeastern Spain), Atmos. Environ., 118, 10–14, 2012.
Bernhard, G. and Seckmeyer, G.: Uncertainty of measurements of spectral solar UV irradiance, J. Geophys. Res., 104, 14321–14345, 1999.
Bernhard, G., Arola, A., Dahlback, A., Fioletov, V., Heikkilä, A., Johnsen, B., Koskela, T., Lakkala, K., Svendby, T., and Tamminen, J.: Comparison of OMI UV observations with ground-based measurements at high northern latitudes, Atmos. Chem. Phys., 15, 7391–7412, https://doi.org/10.5194/acp-15-7391-2015, 2015.
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Short summary
The atmospheric ozone layer is changing, thus the UV radiation at the surface is changing. Due to both beneficial and adverse effects of UV on the biosphere, monitoring of UV is essential. Satellite sensors provide estimates of UV at the surface with a global coverage. Validation of satellite-sensor UV is therefore needed and this can be done by comparison with ground-based measurements. The present validation in three sites (midlatitude, tropical) shows that OMI and GOME-2 provide reliable UV.
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