Articles | Volume 12, issue 8
https://doi.org/10.5194/amt-12-4241-2019
https://doi.org/10.5194/amt-12-4241-2019
Research article
 | 
06 Aug 2019
Research article |  | 06 Aug 2019

Analysis algorithm for sky type and ice halo recognition in all-sky images

Sylke Boyd, Stephen Sorenson, Shelby Richard, Michelle King, and Morton Greenslit

Data sets

Haloloop-Search TSI record for ice halos S. Boyd, S. Sorenson, S. Richard, M. King, and M. Greenslit https://doi.org/10.5281/zenodo.2226125

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Short summary
How cirroform clouds affect the radiation balance of the atmosphere depends on their properties, including ice particle types such as crystals, pellets, and fragments. Ice halos form if ice particles in these clouds are in a smooth hexagonal crystalline form. This paper introduces a method to search long-term records of sky images for ice halos, as gathered by total sky imagers (TSIs). Such an analysis will allow one to explore geographical and seasonal variations in cirrus cloud particle types.