Spring and summer time ozone and solar ultraviolet radiation variations over Cape Point, South Africa

du Preez, David J.; Ajtić, Jelena V.; Bencherif, Hassan; Bègue, Nelson; Cadet, Jean-Maurice; Wright, Caradee Y.

doi:https://doi.org/10.5194/angeo-37-129-2019

Articles | Volume 37, issue 2

https://doi.org/10.5194/angeo-37-129-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-37-129-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 37, issue 2

Regular paper

|

06 Mar 2019

Regular paper |

| 06 Mar 2019

Spring and summer time ozone and solar ultraviolet radiation variations over Cape Point, South Africa

David J. du Preez, Jelena V. Ajtić, Hassan Bencherif, Nelson Bègue, Jean-Maurice Cadet, and Caradee Y. Wright

Data sets

OMI/Aura Ozone (O3) Total Column Daily L2 Global Gridded 0.25 degree x 0.25 degree V3 P. K. Bhartia https://doi.org/10.5067/Aura/OMI/DATA2025

MLS/Aura Level 2 Ozone (O3) Mixing Ratio V004, Greenbelt, MD M. Schwartz, L. Froidevaux, N. Livesey, and W. Read https://doi.org/10.5067/Aura/MLS/DATA2017

Short summary

Reduced atmospheric ozone results in increased solar ultraviolet radiation (UVR) at the surface which may potentially negative impact public health. We aimed to assess whether or not the break-up of the Antarctic ozone hole had an impact on ozone and UVR at Cape Point (South Africa). We found a moderate inverse relationship between ozone and UVR at midday on clear-sky days. The Antarctic ozone hole had a limited effect on ozone levels while tropical air masses more frequently affected the site.