TY - GEN
T1 - Modeling propagation of aviation noise under range-dependent conditions, using a Parabolic Equation method
AU - Rosenbaum, Joyce E.
AU - Atchley, Anthony A.
AU - Sparrow, Victor W.
PY - 2010
Y1 - 2010
N2 - A model for sound propagation over uneven terrain, with mixed ground impedance and range-dependent meteorological conditions has been developed to improve prediction of the impact of aviation noise on communities. Based on the Parabolic Equation method, the model is intended to enhance the noise prediction capabilities for the Federal Aviation Administration's Aviation Environmental Design Tool in support of the Next Generation Air Transportation System (NextGen). The model ensures the low frequency content, a factor in community impact, is propagated accurately and can accommodate broadband, moving sound sources, traveling along user-specified paths, over three-dimensional terrain. Two test cases including uneven terrain, an impedance discontinuity, and a downward refracting atmosphere were designed to represent simple but realistic propagation conditions. Model results for a source traveling along a simple flight path under the conditions of the two test cases are presented and compared.
AB - A model for sound propagation over uneven terrain, with mixed ground impedance and range-dependent meteorological conditions has been developed to improve prediction of the impact of aviation noise on communities. Based on the Parabolic Equation method, the model is intended to enhance the noise prediction capabilities for the Federal Aviation Administration's Aviation Environmental Design Tool in support of the Next Generation Air Transportation System (NextGen). The model ensures the low frequency content, a factor in community impact, is propagated accurately and can accommodate broadband, moving sound sources, traveling along user-specified paths, over three-dimensional terrain. Two test cases including uneven terrain, an impedance discontinuity, and a downward refracting atmosphere were designed to represent simple but realistic propagation conditions. Model results for a source traveling along a simple flight path under the conditions of the two test cases are presented and compared.
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M3 - Conference contribution
AN - SCOPUS:84869392650
SN - 9781617382949
T3 - 24th National Conference on Noise Control Engineering 2010, Noise-Con 10, Held Jointly with the 159th Meeting of the Acoustical Society of America
SP - 1158
EP - 1165
BT - 24th National Conference on Noise Control Engineering 2010, Noise-Con 10, Held Jointly with the 159th Meeting of the Acoustical Society of America
T2 - 24th National Conference on Noise Control Engineering 2010, Noise-Con 2010, Held Jointly with the 159th Meeting of the Acoustical Society of America
Y2 - 19 April 2010 through 21 April 2010
ER -