Validation of a satellite-based solar UV-A radiation dosimeter for mobile healthcare applications

Journal of Atmosph. and Solar-Terrestrial Physics 2021 | siHealth, Flyby, Public Health England


Solar UV-A radiation causes photocarcinogenesis and skin photoageing, but it could also benefit cardiovascular health and protection from autoimmunity.

In this study, a method for the near real-time monitoring of UV-A solar radiation dose based on Earth Observation satellites imagery is proposed. The calculated satellite-derived radiant dose has been compared to ground measurements provided by Public Health England solar monitoring network at eight locations in the UK and Republic of Ireland in April–October 2015. The statistical analysis showed a good correlation between satellite-derived exposure doses and direct ground measurements under all weather conditions, significantly improved for clear skies. The proposed method may be considered for the integration into digital mobile apps for healthcare, assisting users to balance risks and benefits of sun exposure in an accessible way.


Marco Morelli*, Benedetto Michelozzi**, Emilio Simeone* and Marina Khazova***

*siHealth Ltd, Building R104, Rutherford Appleton Laboratory, Harwell Campus, Didcot, Oxfordshire, OX11 0QX, United Kingdom

**Flyby Srl, Via Lampredi 45, 57121, Livorno, Italy

***Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Didcot, Oxfordshire, OX11 0RQ, United Kingdom

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