Articles | Volume 14, issue 3
https://doi.org/10.5194/amt-14-2441-2021
https://doi.org/10.5194/amt-14-2441-2021
Research article
 | 
29 Mar 2021
Research article |  | 29 Mar 2021

Ångström exponent errors prevent accurate visibility measurement

Hengnan Guo, Zefeng Zhang, Lin Jiang, Junlin An, Bin Zhu, Hanqing Kang, and Jing Wang

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Short summary
Visibility is an indicator of atmospheric transparency and is widely used in many research fields. Although efforts have been made to improve the performance of visibility meters, a significant error exists in measured visibility data. This is because current methods of visibility measurement include a false assumption, which leads to the long-term neglect of an important source of visibility errors. Without major adjustments to current methods, it is not possible to obtain reliable data.