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
      Inorganic Chemistry
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE