Improved algorithm for simulations of divergent-light halos

Summary, in English

Divergent-light halos are produced when light from nearby light sources is scattered by ice crystals in the atmosphere. We present a theory of divergent-light halos leading to an improved algorithm for the simulation of such halos. Contrary to the algorithm that we presented earlier for simulating such halos, the new algorithm includes a mathematically rigorous weighting of the events. The computer implementation is very compact, and the whole procedure is elegant and conceptually easy to understand. We also present a new simulation atlas showing halos produced by crystals of different shapes and orientations for a set of elevations of the light source.

• Författare: Lars Gislén; Jan Mattsson; Bo Söderberg
• Avdelning/ar: Teoretisk partikelfysik - Har omorganiserats; Institutionen för naturgeografi och ekosystemvetenskap; Beräkningsbiologi och biologisk fysik - Har omorganiserats
• Publiceringsår: 2005
• Språk: Engelska
• Sidor: 3638-3645
• Publikation/Tidskrift/Serie: Applied Optics
• Volym: 44
• Issue: 18
• Länkar: http://www.opticsinfobase.org/abstract.cfm?URI=ao-44-18-3638; http://dx.doi.org/10.1364/AO.44.003638
• Dokumenttyp: Artikel i tidskrift
• Förlag: Optical Society of America
• Ämne: Atom and Molecular Physics and Optics
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 2155-3165