Modeling outdoor sound propagation in mountainous areas

التفاصيل البيبلوغرافية
العنوان: Modeling outdoor sound propagation in mountainous areas
المؤلفون: Timothy Van Renterghem, Bram de Greve, Dick Botteldooren
المصدر: The Journal of the Acoustical Society of America. 120:3334-3334
بيانات النشر: Acoustical Society of America (ASA), 2006.
سنة النشر: 2006
مصطلحات موضوعية: Acoustics and Ultrasonics, Arts and Humanities (miscellaneous), General purpose, Meteorology, Sound propagation, Environmental science, Terrain, Inversion (meteorology), Remote sensing
الوصف: Detailed modeling of outdoor sound propagation in mountainous area imposes special requirements. The strong gradients in ground surface create propagation conditions that may lead to noise levels much higher than expected at some distance from the source partly due to a focusing effect. Meteorological conditions are particular: main winds following the valley, strong temperature gradients often including stable inversion, slope winds, etc. Because of these particular conditions, efficient modeling of outdoor sound propagation in mountainous area requires adaptations to be made to general purpose models. In this paper we will present possibilities for making time‐domain models terrain following and consider options to decrease the memory requirements. For the higher frequency range and distances one is generally interested in, these adaptations are insufficient. Hence, a Green’s function parabolic equation model is added to the toolbox. To tackle the problem in three dimensions, a number of two‐dimensional...
تدمد: 0001-4966
DOI: 10.1121/1.4781288
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::b2f71630b561b238562cf9e945841283
https://doi.org/10.1121/1.4781288
رقم الانضمام: edsair.doi...........b2f71630b561b238562cf9e945841283
قاعدة البيانات: OpenAIRE
الوصف
تدمد:00014966
DOI:10.1121/1.4781288