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            <gco:CharacterString>Two primary acoustic amplitude parameters have been widely used in the UK relating to marine piling. These are peak-to-peak pressure (Nedwell et al., 2006; Nedwell et al., 2007a), and Sound Exposure Level (SEL) (Southall et al., 2007). In addition, for some exposure criteria, the zero-to-peak pressure levels been used (Southall et al., 2007). The amplitude parameters used in this report are the peak-to-peak pressure (Ppk−pk_{pk-pk}pk−pk​), the zero-to-peak pressure level (Ppk_{pk}pk​) and Sound Exposure Level (SEL). The Sound Exposure Level is a measure of the pulse energy content and is calculated from a pulse pressure squared integral of the pulse (Madsen, 2005). It is also used to express the overall exposure which is done by summation of sound exposure levels of the entire piling event. These parameters are usually stated in decibels (dB) with reference to 1 Pa for peak-to-peak and zero-to-peak pressure levels, and 1 µPa²·s for SEL.</gco:CharacterString>
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        <gco:CharacterString>SeaRoc Group Ltd</gco:CharacterString>
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                <gco:CharacterString>+44 (0) 1243 816606</gco:CharacterString>
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                    <gco:Date>2022-11-29</gco:Date>
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