This document is the first deliverable in the project ‘Standard Procedures for Underwater Noise Measurements for Activities Related to Offshore Oil and Gas Exploration and Production. Phase I: Processing and Reporting Procedures’ carried out by TNO, in collaboration with CSA and Bioacoustics Consulting, for the Sound and Marine Life Joint Industry Programme (JIP). The objectives of this project are [ref TNO proposal “Standard Procedures for Underwater Noise Measurements for Activities Related to Offshore Oil and Gas Exploration and Production. Phase I: Processing and Reporting Procedures, 15 October 2015, TNO-reference DHW-TS2015-0100209351)]: 1) to ensure that processing of selected acoustic metrics such as level, duration, and frequency content (‘acoustical processing’), used to describe the characteristics of a sound signal propagating in water, can be analyzed in a consistent and systematic manner; 2) to ensure that the results of such acoustical processing can be reported in such a way that the results reported from two or more studies can be appropriately compared; 3) to define the correspondence between the acoustic metrics to be reported and metrics used in selected previous scientific publications.
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