Low Frequency Active Sonar
I T S   E F F E C T S   O N   S E A   L I F E


2006 Update:  The Navy has published a supplemental Environmental Impact Statement (SEIS) for its use of SURTASS LFA sonar, available for review at http://www.surtass-lfa-eis.com.

 Public comments on the SEIS are due February 10, 2006.

 Comments can be sent via e-mail to: <eisteam@mindspring.com>

 Or by mail to: SURTASS LFA Sonar EIS Program Manager, 4100 Fairfax Drive, Ste 730, Arlington, VA 22203.

 The Navy proposes to employ SURTASS LFA sonar within the same operational areas as proposed in its original EIS published in 2001—namely, throughout the Pacific, Indian, and Atlantic oceans, and the Mediterranean Sea—with a few exceptions for new offshore biologically important areas. 




 i n   b r i e f

  • What is LFAS? LFAS is an acronym for a Navy project, otherwise known as Low Frequency Active Sonar. This project is aimed at detecting the presence of submarines using low frequency sounds. The reasoning behind using low frequency sounds is that those sounds travel great distances.


  • LFAS is often related to the Water Hammer project which is developing a system which will generate pressure pulses of energy with timed explosions to neutralize the threat of mines. The only similarity is that both projects will introduce more noise into the world's oceans.


 i n   d e p t h


  • Given the heated debates between the researchers and the conservationists, there are several political implications. More


  • Why should such a system be developed? Doesn't the country already have adequate measures to protect the people? More


  • The technology used in the LFAS project is not a new idea. The concept of using sound for underwater detection has been around for years. More


  • The whales are definitely a part of this earth like the rest of us and should be treated with equal respect. More


  • Click here for various paintings and pictures and here for addresses where you can write to for more information and to express your opinion about the subject.


  • HOT!! Click here to hear the LFAS sounds. (Obtained from DreamWeaving International) 








C O N T A C T   U S

Students in H90 "The Science of Biodiversity and Conservation"
Campuswide Honors ProgramUniversity of California, Irvine.





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