A Comparison of Observed and Predicted Ambient Noise in the Northeast Pacific, Winter 1980
Raysin, Kent L.
MetadataShow full item record
Hindcasts from the Directional Ambient Noise Estimation System (DANES) model were compared to in situ ambient noise measurements to determine the accuracy of the U.S. Navy's ambient noise model. One hundred fifty eight (158) sonobuoy ambient noise measurements were acquired at eight locations in the Northeast Pacific (NEPAC) Ocean during November and December 1980. For each sonobuoy observation a DANES hindcast was made using archived fields from Fleet Numerical Oceanography Center for the simultaneous time and location. The difference between the predictions and measurements was calculated. A maximum mean error of 4.9 dB occurred at 200 Hz which appeared to be due to errors in the DANES Historical Temporal Shipping (HITS) data base. The model was insensitive to synoptic shipping, sound speed profiles and wind field inputs when the HITS data base was utilized.
NPS Report NumberNPS-68-84-009
Showing items related by title, author, creator and subject.
Cousins, John David (Monterey, California. Naval Postgraduate School, 1991-03);Ambient noise measurements made northeast of Svalbard from two omni-directional hydrophones, deployed at 60 and 90 m beneath the ice, were acquired as the research vessel Polarbjoern drifted southward from 11 October to ...
Observations of ocean ambient noise (10 Hz to 10 kHz) at the site of a former navy listening station to the west of Point Sur, California, from January to July of 2007 Cocker, Paul K. (Monterey, California. Naval Postgraduate School, 2008-06);Ocean acoustic recordings were obtained from January through June of 2007 at the site of a former Unites States Navy listening station to the west of Point Sur, California. These data were analyzed to determine the ...
Shaw, Ronald R. (Monterey, California. Naval Postgraduate School, 2000);The ambient noise data recorded by two free-drifting buoys during the 1997-98 SHEBA experiment presented a unique opportunity to gauge the noise field of the Arctic Ocean in a unique and changing environment. The two buoys ...