Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 18
Articles | Volume 19, issue 18
https://doi.org/10.5194/amt-19-5905-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-5905-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 18
Research article
 | 
17 Sep 2026
Research article |  | 17 Sep 2026

On the origin of the twilight color index maximum and its application to cloud-height retrieval

Daniel Toledo

Viewed

Total article views: 283 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
185 69 29 283 18 12
  • HTML: 185
  • PDF: 69
  • XML: 29
  • Total: 283
  • BibTeX: 18
  • EndNote: 12
Views and downloads (calculated since 26 May 2026)
Cumulative views and downloads (calculated since 26 May 2026)

Viewed (geographical distribution)

Total article views: 283 (including HTML, PDF, and XML) Thereof 237 with geography defined and 46 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 17 Sep 2026
Download
Short summary
A single-scattering formulation of the color index is presented to investigate the physical mechanisms governing the CI maximum observed during twilight in the presence of high-altitude clouds. Within this framework, the maximum is shown to occur at the solar zenith angle (SZA) for which the relative SZA-variations of the zenith intensity become equal at the two selected wavelengths. The formulation is validated against Monte Carlo radiative transfer simulations, showing good agreement.
Read more
Share