Sound levels of the pressure excitation exposures applied in the pilot experiments.

Lz−p = zero to peak sound pressure level, SELss = single strike sound exposure level and SELcum = cumulative sound exposure level, see the text for further explanation. The last 2 columns present the corresponding distance from a ‘typical’ North Sea pile-driving installation and number of strikes.

Lz−p 为零峰声压级（zero to peak sound pressure level），SELss 为单次冲击声暴露级（single strike sound exposure level），SELcum 为累积声暴露级（cumulative sound exposure level），详细说明详见正文内容。最后两列分别对应「典型」北海打桩装置的作业距离与冲击次数。