Related Experiment Videos
How are glories formed?
1Chemin de l'Avanchet 20, CH-1216 Cointrin, Switzerland. philip@philiplaven.com
Applied Optics
|October 6, 2005
Summary
Atmospheric glories are explained by a new two-ray interference model of surface waves. This model provides more accurate results than previous theories for light scattering in water droplets.
Area of Science:
- Atmospheric optics
- Light scattering
- Wave phenomena
Background:
- Mie theory and Debye series simulations model atmospheric glories.
- Van de Hulst's 1947 theory attributes glories to surface waves and toroidal wavefronts.
- Existing models lack a complete explanation for glory formation.
Purpose of the Study:
- To propose a new model for atmospheric glory formation.
- To explain glories as a two-ray interference phenomenon.
- To improve the accuracy of glory simulations.
Main Methods:
- Analysis of light scattering using Mie theory and Debye series.
- Investigating surface wave behavior on spherical water droplets.
- Developing a two-ray interference model based on continuous radiation shedding from surface waves.
Main Results:
- Simulations indicate glories arise from one internal reflection in water droplets.
- The proposed model considers scattering as a vector sum of two surface waves.
- The new model demonstrates higher accuracy compared to van de Hulst's theory.
Conclusions:
- Atmospheric glories result from two-ray interference of surface waves.
- The proposed model offers a more accurate explanation for glory phenomena.
- Further research can refine this interference model for broader applications.