The effect of wind speed on ambient noise has been measured in an experiment carried out in the South Fiji basin. The noise data in the band 15-250 Hz are well correlated with the variations in the local wind speed. The relationship between noise level N and wind speed nu is expressed by N=B+20n log nu . The constants B and n have been estimated by fitting the data using this model. The analysis indicates that there are two types of behavior: for nu >15 kn, a value of n=1.5 is obtained for the entire band, whereas for nu <15 kn, there is no correlation with wind speed observed in the data. The results suggest that there is a delay of 40-120 min for the effect of wind on the hydrophone noise level.
Low-frequency ambient-noise measurements in the South Fiji basin
Messungen von Umgebungsgeräuschen niedriger Frequenz im Süd-Fidschi-Becken
IEEE Journal of Oceanic Engineering ; 15 , 4 ; 311-315
1990
5 Seiten, 13 Quellen
Article (Journal)
English
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