수중소음 거리감쇠 특성식을 이용한 해양생물 피해영향범위 예측

Abstract

There are insufficient data to consider the effect zone for the marine life of coastal fisheries, because no standard has been defined for the sound level ofmarine life. In this study, equations for distance attenuation were used to determine the effect zone for oceanic noises. A reference noise level was divided into 4 parts to consider the characteristics of the fishes, and the effect zone of each reference noise level was determined. To increase the reliability of the effect scope, approximately 100 repetitions of blasting work split into several parts by the boring depth, the sound level of the source caused by an increase in weight, and the effect zone were calculated using the prediction equation. According to the prediction, the maximum distance of the effect zone was 4.92 km.