Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 19
Articles | Volume 18, issue 19
https://doi.org/10.5194/amt-18-5037-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-18-5037-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 19
Research article
 | 
02 Oct 2025
Research article |  | 02 Oct 2025

Comparison of total ozone measurements in Melbourne, Australia, performed with a low-cost micro spectrometer and a Brewer MK-III

Kåre Edvardsen, Matt Tully, and Steve Rhodes

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Short summary
A new, low-cost instrument for measuring total column ozone was tested against a MK III Brewer spectrophotometer for six months. Using the "Global Irradiance" method from the Norwegian GUV network, it showed ozone values matching Direct Sun Brewer measurements with a 1.8 % standard deviation. Despite temperature and cloud dependencies, the instrument is robust and easy to use. Fully coverage of the UV-A/B spectrum allows for further UV-radiation analysis. Total cost is less than EUR 3000.
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