Articles | Volume 14, issue 3
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

Data sets

Data Download Tool AERONET

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.