00000nam 2200000za 4500 9.821413 CaOODSP 20240412142918 cr ||||||||||| 160720s2012 onc|||||o f000 0 eng d CaOODSP eng eng fre n-cn--- D68-7/043-2010E-PDF Survey of Active Acoustic Monitoring (AAM) technologies [electronic resource] : volume II : E&P Environments and marine mammals / by J. Theriault ... [et al.] [Ottawa] : Defence Research and Development Canada, c2012 x, 68 p. : tables, figures. External client report ; 2010-043 "June 2012." Includes bibliographical references. Under the International Association of Oil and Gas Producers Exploration and Production (E&P) Sound and Marine Life Programme, a research study was carried out on the feasibility of the Active Acoustic Monitoring (AAM) of marine mammals. The purpose of such monitoring would be to detect marine mammals in those ocean areas where E&P activities are being conducted, in order to allow due diligence in mitigating any potential impact of these E&P operations. The study did not include any direct experimentation. The AAM study encompassed multiple work components. First, the problem domain was delineated in an overview of offshore E&P activities and of the ocean environments in which they are conducted. To make the analysis more concrete, six specific ocean areas of relevance to E&P were selected and their properties described. Next, the potential performance of AAM was investigated via a parametric study of the sonar equation, incorporating available knowledge of sonar technology and environmental effects (e.g., high-frequency backscattering from the ocean boundaries). This part of the study was intended to identify any fundamental limitations to AAM as imposed by technology or by the basic physics of the problem, and also to pinpoint those sonar features that are of key importance for AAM. Special effort was dedicated to investigating the target strength of marine mammals, as this is an area in which scientific knowledge is sparse at present. gccst Technical reports Active sonar Active acoustic monitoring Thériault, James A. Defence R&D Canada. External client report (Defence R&D Canada) 2010-043 (CaOODSP)9.820568 PDF 16.27 MB https://publications.gc.ca/collections/collection_2016/rddc-drdc/D68-7-043-2010-eng.pdf