Study of the Oceanic Polar Front in the Denmark Strait
Nunn, Silas Oscar
von Schwind, Joseph J.
MetadataShow full item record
A computer program is utilized to examine the effect on sound propagation of the oceanic polar front in the Denmark Strait and along the Southeastern coast of Greenland. Ray traces are computed with the source in both the cold and warm current areas for surface thermal gradients of 0.036 C/KM to 1.68 C/KM. These gradients are created by varying horizontal distances between actual oceanographic stations. The results indicate greater trapping angles with the source in cold water. A relationship is reported between the surface thermal gradient and the change in trapping angle difference for pairs of runs. The location of the oceanic polar front and the effects of environmental influences on its strength and seasonal movement are described.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Lim, Kwang Yong. (Monterey, California. Naval Postgraduate School, 2006-12);This thesis presents the simulation results and performance analysis of IEEE 802.15.4 in an oceanic environment. The 802.15.4 standard allows simple sensors and actuators to co-exist in a single wireless platform. The ...
Gross, Richard S.; Bryan, Frank O.; Chao, Yi; Dickey, Jean O.; Marcus, Steven L.; Ponte, Rui M.; Tokmakian, Robin (1999-05);The oceans have a major impact on global geophysical processes of the Earth. Non-tidal changes in oceanic currents and ocean-bottom pressure have been shown to be a major source of polar motion excitation and also measurably ...
Semtner, A.J. Jr.; Chervin, R.M. (1990-08-15);Munk and Forbes (1989) have proposed an acoustic technique for measuring the ocean warming caused by the buildup of greenhouse gases in the atmosphere. Travel time from a source in the South Indian Ocean will be monitored ...