Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 18, issue 23
Articles | Volume 18, issue 23
https://doi.org/10.5194/amt-18-7177-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/amt-18-7177-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 23
Research article
 | 
01 Dec 2025
Research article |  | 01 Dec 2025

Total solar irradiance using a traceable solar spectroradiometer

Dhrona Jaine, Julian Gröbner, and Wolfgang Finsterle

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Latest update: 16 Jun 2026
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Short summary
Solar irradiance monitoring is an integral part of climate research. But the major drawback was the larger uncertainties associated with the measurements. To minimize the uncertainties, improved calibration standards, measurement techniques and sensors were developed. In this study we are validating the a newly developed Bi-Tec sensor spectroradiometer with an average uncertainty of 0.53 % with world radiometric reference (WRR) and international system of units (SI).
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Sun-photometric measurements of aerosols: harmonization, comparisons,...