Abstract

In order to obtain the data for environmental impact assessment of a new planned airport on an artificial offshore island, long term (14 months) continuous measurement of long range (5 km) sound propagation over a sea surface was carried out with the MLS correlation method. The measured noise reduction data were analyzed statistically to explore any relationships with meteorological conditions observed simultaneously. Although clear results could not be found between these relationships, useful statistical data of excess attenuation for propagation of estimated aircraft noise was obtained.

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