Comparison of modelled atmospheric aerosol content and its influence on high-energy laser propagation
conference paper
Aerosol content of the atmosphere is an important factor in the propagation of high-energy laser (HEL) beams. Aerosol absorption leads to the thermal blooming effect, where the laser beam heats the air and thereby creates a diverging lens. We have used three methods to estimate the aerosol absorption coefficient: (1) a Mie calculation on experimentally determined size distributions, (2) the parametric Advanced Navy Aerosol Model (ANAM), and (3) the chemical transport model LOTOS-EUROS. Individual estimates of the absorption coefficient differ significantly, which in turn impacts greatly on the extent of thermal blooming and HEL-beam propagation. © 2019 SPIE.
Topics
TNO Identifier
871939
ISSN
0277786X
ISBN
9781510629592
Publisher
SPIE
Article nr.
111330C
Source title
Proceedings of SPIE - The International Society for Optical Engineering, Laser Communication and Propagation through the Atmosphere and Oceans VIII 2019, 13 August 2019 through 15 August 2019
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