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

M. Morelli*, B. Michelozzi, E. Simeone, M. Khazova

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Article number105529
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Publication statusPublished - Apr 2021

Bibliographical note

Funding Information:
The project was supported by the Science & Technology Facilities Council Proof of Concept funding Agreement No. 5854F in collaboration with the Harwell HealthTec Cluster , UK. The authors are grateful to Public Health England for the provision of ground-based UV radiation data and to EUMETSAT and NASA for the provision of satellite data.

Publisher Copyright:
© 2021 Elsevier Ltd


  • Digital healthcare apps for for bbbalancing risks and benefits of sun exposure
  • Near real-time solar UV-A sensor-less dosimeter
  • Satellite Earth Observation
  • Validation by ground spectral radiation measurements


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