Accession Number : ADA456958
Title : Modeling and Characterization of Microbarom Signals in the Pacific
Descriptive Note : Technical rept.
Corporate Author : HAWAII UNIV KAILUA-KONA INFRASOUND LAB
Personal Author(s) : Garces, Milton ; Willis, Mark
PDF Url : ADA456958
Report Date : SEP 2006
Pagination or Media Count : 70
Abstract : Naturally occurring sources of infrasound include (but are not limited to) severe weather, volcanoes, bolides, earthquakes, surf, mountain waves, and, the focus of this research, nonlinear ocean wave interactions. Man-made sources of infrasound also exist, such as airplane activity, military testing, rocket launches, and nuclear explosions (Bedard and Georges, 2000). Due to its low frequency, infrasound can travel global distances with relatively low attenuation while higher frequency audible sound is usually dissipated at shorter ranges (Drob et al., 2003). Infrasonic waves may travel through the atmosphere between the Barth's surface and the thermosphere. The variability of wind and temperature with height determines the advection and refraction of infrasonic waves in the atmosphere (Gossard and Hooke, 1975).
Descriptors : *OCEAN WAVES, *AZIMUTH, *OCEAN BOTTOM TOPOGRAPHY, *MICROBAROMETRIC WAVES, FREQUENCY, NUCLEAR EXPLOSIONS, SOURCES, INTERACTIONS, NONLINEAR SYSTEMS, SOUND, STORMS, ATTENUATION, SURF, VOLCANOES, HEARING, WAVES, LOW FREQUENCY, ADVECTION, EARTHQUAKES, REFRACTION, TRAVEL, INFRASONIC RADIATION, INFRASOUND, MILITARY APPLICATIONS, MANMADE, MOUNTAINS, TEST METHODS, AIRCRAFT, THERMOSPHERE, GLOBAL
Subject Categories : Meteorology
Physical and Dynamic Oceanography
Distribution Statement : APPROVED FOR PUBLIC RELEASE