Abstract
Meteorological conditions in an arctic environment differ significantly from those in a temperate environment. Atmospheric phenomena particular to polar regions, including wind patterns such as the polar vortex and low-level jets above strongly stable layers, strong temperature and humidity gradients, and density currents, could have unique impacts on infrasound propagation that are not observed in temperate locations. In this study, parabolic-equation simulations of sound propagation are performed using measured meteorological conditions for summer and winter conditions in temperate and arctic locations. The similarities and differences in environmental conditions between these two locations and their relative impact on the predicted transmission loss are examined. For summer conditions, a comparison to measured data from explosive sources is performed for both temperate and arctic locations.
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