Results 111 to 120 of about 688 (138)

Assessment of Marine Mammal Impact Zones for Use of Military Sonar in the Baltic Sea

2016
Military sonars are known to have caused cetaceans to strand. Navies in shallow seas use different frequencies and sonar pulses, commonly frequencies between 25 and 100 kHz, compared with most studied NATO sonar systems that have been evaluated for their environmental impact.
Mathias H, Andersson, Torbjörn, Johansson   +1 more
openaire   +2 more sources

Auditory Effects of Mid-Frequency Sonars on Marine Mammals

2007
Abstract : The long terms goals of this effort are to develop mathematical models to predict the auditory effects of mid-frequency tones, similar to those emitted by Navy tactical sonars, on marine mammals. The models would be used in acoustic effects analyses in environmental documents and to develop appropriate mitigation procedures.
openaire   +1 more source

Environmental Risk Management Capability: Advice on Minimising the Impact of Both Sonar and Seismic Offshore Operations on Marine Mammals

SPE Offshore Europe Oil and Gas Conference and Exhibition, 2009
Abstract There is growing concern about the effect of noise pollution from Offshore Operations on whales, dolphins, porpoises and other marine fauna both in the scientific and political communities. The general public, media and key decision makers are becoming more aware of the potential impact of such operations and this is increasing ...
A. Mollett, C. Schofield, I. Miller, J. Harwood, C. Harris, C. Donovan   +5 more
openaire   +1 more source

The application of EZ-Gram sonar display aids to the Marine Mammal Monitoring on Navy Undersea Ranges (M3R) system

Oceans '02 MTS/IEEE, 2004
In order to understand and address the environmental impact of sonar and acoustic systems testing, the Naval Undersea Warfare Center (NUWC) and its partners are developing new techniques and applications for the passive classification and tracking of marine mammals in designated Navy acoustic sensor testing areas.
R.J. Barton, S. Jarvis, R.J. Rowland, D. Moretti   +3 more
openaire   +1 more source

Inter-ping sound field from a simulated mid-frequency active sonar, and its implication to marine mammal tonal masking

Proceedings of Meetings on Acoustics, 2016
This study investigates the characteristics of the sound field during the 2013 and 2014 Southern California Behavioral Response Study. Acoustic data were collected before, during, and after simulated mid-frequency active sonar (MFAS) playbacks. A numerical approach, incremental computation method, is developed to quantify the inter-ping sound field ...
Shane Guan, Brandon L. Southall, Jay Barlow, Joseph F. Vignola, John A. Judge, Diego Turo   +5 more
openaire   +1 more source

Environmental Risk Management Capability: Advice on minimising the impact of sonar on marine mammals

The Journal of the Acoustical Society of America, 2008
The Environmental Risk Management Capability - Sonar (ERMC(S)) has now been accepted into service by the UK Royal Navy. ERMC(S) is the first operational software package that provides a comprehensive risk assessment of the common concern of the potential impact of sonar usage on marine mammals.
openaire   +1 more source

Patterns of Occurrence and Marine Mammal Acoustic Behavior in Relation to Navy Sonar Activity Off Jacksonville, Florida

2016
Passive acoustic data collected from marine autonomous recording units deployed off Jacksonville, FL (from 13 September to 8 October 2009 and 3 December 2009 to 8 January 2010), were analyzed for detection of cetaceans and Navy sonar. Cetaceans detected included Balaenoptera acutorostrata, Eubalaena glacialis, B.
Julie N, Oswald, Thomas F, Norris, Tina M, Yack, Elizabeth L, Ferguson, Anurag, Kumar, Jene, Nissen, Joel, Bell   +6 more
openaire   +2 more sources

Use of Automated passive acoustic monitoring methods for monitoring for marine mammals in conjunction with US Navy Mid-frequency Active Sonar training events

The Journal of the Acoustical Society of America, 2013
Automated passive acoustic detection, classification, and localization (DCL) methods are employed to deal with large volumes of acoustic data to support estimating the sound pressure levels (SPLs) that marine mammals are exposed to from mid-frequency active sonar (MFAS) during US Naval training events.
Stephen W. Martin, Roanne A. Manzano-Roth, Brian M. Matsuyama   +2 more
openaire   +1 more source

SAKAMATA : Managing the risk of sonar sound on marine mammals

2012
SAKAMATA is a risk assessment and mitigation tool developed by TNO and used by the Royal Netherlands Navy. It supports the user in planning and carrying out active sonar operations in an environmentally responsible way. Recently, a new version has been developed, which makes it possible to quantify the number of marine mammals affected, taking into ...
Benda-Beckmann, A.M. von, Zwan, T. van der, Riet, M.W.G. van, Benders, F.P.A., Ainslie, M.A., Raa, L.A. te   +5 more
openaire   +1 more source

Monitoring of marine mammal occurrence and acoustic behaviors in relation to mid-frequency active sonar using autonomous recorders deployed off the undersea warfare training range, Florida

The Journal of the Acoustical Society of America, 2013
Passive acoustic data were collected from nine Marine Autonomous Recording Units (MARUs) deployed 60–150 km in an area that coincides with the U.S. Navy’s planned Undersea Warfare Training Range (USWTR) off Jacksonville FL. MARUs were deployed for 26 days during fall 2009, and 37 days in winter 2009–2010.
Thomas F. Norris, Julie Oswald, Tina M. Yack, Elizabeth Ferguson, Anurag Kumar, Jene Nissen, Joel Bell   +6 more
openaire   +1 more source