On the colour of noctilucent clouds

Lange, Anna; Baumgarten, Gerd; Rozanov, Alexei; von Savigny, Christian

doi:https://doi.org/10.5194/angeo-40-407-2022

Articles | Volume 40, issue 3

https://doi.org/10.5194/angeo-40-407-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-40-407-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 40, issue 3

Regular paper

|

15 Jun 2022

Regular paper |

| 15 Jun 2022

On the colour of noctilucent clouds

Anna Lange, Gerd Baumgarten, Alexei Rozanov, and Christian von Savigny

Data sets

SORCE Combined XPS, SOLSTICE, and SIM Solar Spectral Irradiance 24-Hour Means V001 (http://lasp.colorado.edu/lisird/data/sorce_ssi_l3/) Tom Woods, Jerald Harder, and Martin Snow https://doi.org/10.5067/9PRENS3AL461

Short summary

We investigate the influence of different parameters on the colour of noctilucent clouds (highest clouds in the atmosphere), using radiative transfer calculations. We determined the effect of the particle size, optical depth, single scattering/multiple scattering and ozone. For sufficiently large optical depth and for specific viewing geometries, ozone plays only a minor role in the blueish colour of noctilucent clouds (new result).