Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 20
Articles | Volume 19, issue 20
https://doi.org/10.5194/amt-19-6607-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-6607-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 20
Research article
 | 
20 Oct 2026
Research article |  | 20 Oct 2026

Physically constrained retrieval of fog visibility from millimeter-wavelength cloud radar observations

Xiaojie Li, Jinming Ge, Yucheng Qiu, Qiaoyi Lv, Wei Song, Jie Zhang, Chi Zhang, Bochun Liu, Jiapeng Wang, Hongwei Xia, and Yuhang Zhu

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Short summary
Fog threatens transportation but is hard to monitor. Ground sensors see only single points and satellites miss vertical detail. We developed a radar-based method to estimate visibility inside fog based on how fog droplets block light. The method finds water content and droplet sizes from radar signals, then calculates how far one can see. It provides three-dimensional fog monitoring without extra instruments.
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