@article {Rickley:2007:0736-2501:482, title = "Simplified procedure for computing the absorption of sound by the atmosphere", journal = "Noise Control Engineering Journal", parent_itemid = "infobike://ince/ncej", publishercode ="ince", year = "2007", volume = "55", number = "6", publication date ="2007-11-01T00:00:00", pages = "482-494", itemtype = "ARTICLE", issn = "0736-2501", url = "https://ince.publisher.ingentaconnect.com/content/ince/ncej/2007/00000055/00000006/art00001", doi = "doi:10.3397/1.2820987", keyword = "76.1.1, 24.2", author = "Rickley, Edward J. and Fleming, Gregg G. and Roof, Christopher J.", abstract = "This paper describes a study that resulted in the development of a simplified method for calculating attenuation by atmospheric-absorption for wide-band sounds analyzed by one-third octave-band filters. The new method [referred to herein as the Volpe Method] utilizes the accurate pure-tone sound absorption algorithms of two published standards, the International Standard, Acoustics-Attenuation of Sound During Propagation Outdoors-Part 1: Calculation of the Absorption of Sound by the Atmosphere, ISO 9613-1 and, the American National Standard, Method for Calculation of the Absorption of Sound by the Atmosphere, ANSI S1.26-1995. The purpose of the study was to extend the useful attenuation range of the Approximate Method outlined in the ANSI document, and provide a basis for replacing the current Society of Automotive Engineers Aerospace Recommended Practice 866A, Standard Values of Atmospheric Absorption as a Function of Temperature and Humidity (SAE ARP 866A). The Volpe Method was found to be useable to mid-band absorption levels up to 500 dB with errors of less than \textpm0.5 dB or \textpm5% (of mid-band attenuation levels) to 100 dB, and \textpm7% to 500 dB.", }