Preprints
https://doi.org/10.5194/egusphere-2023-456
https://doi.org/10.5194/egusphere-2023-456
01 Sep 2023
 | 01 Sep 2023

Revealing Halos Concealed by Cirrus Clouds

Yuji Ayatsuka

Abstract. Many types of halos appear in the sky. Each type of halo corresponds to the shape and orientation of ice crystals in clouds, and reflects the state of the atmosphere, therefore observing them from the ground greatly helps in understanding the state of the atmosphere. However, halos are easily obscured by the contrast of the cloud itself, making it difficult to observe them. This difficulty can be overcome by enhancing halos on images, for which various techniques have been developed. This study describes the construction of a sky-color model for halos and a new effective algorithm to reveal halos on images.

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Journal article(s) based on this preprint

24 Jun 2024
Revealing halos concealed by cirrus clouds
Yuji Ayatsuka
Atmos. Meas. Tech., 17, 3739–3750, https://doi.org/10.5194/amt-17-3739-2024,https://doi.org/10.5194/amt-17-3739-2024, 2024
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The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Many types of halos appear in the sky. Each type of halo reflects the state of the atmosphere,...
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