منابع مشابه
Correlation of Infrasonic ** Microbarometric Disturbances!and Long Period Seismic Phenorrmna
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متن کاملA study of infrasonic anisotropy and multipathing in the atmosphere using seismic networks.
We discuss the use of reverse time migration (RTM) with dense seismic networks for the detection and location of sources of atmospheric infrasound. Seismometers measure the response of the Earth's surface to infrasound through acoustic-to-seismic coupling. RTM has recently been applied to data from the USArray network to create a catalogue of infrasonic sources in the western US. Specifically, ...
متن کاملA Numerical Evaluation of Seismic Response of Shallow Soil Deposits
This paper employs one-dimensional numerical ground response analysis models to investigate seismic response of shallow cohesive and non-cohesive soil deposits on vertical propagation of horizontal shear waves. Soil response is modelled by traditional equivalent-linear (EL) frequency-domain analysis using DEEPSOIL software and nonlinear (NL) time-domain analysis using OPENSEES software. The ana...
متن کاملEvaluation of Infrasonic Spatial Filters
The infrasound element of the global International Monitoring System (IMS) will consist of 60 stations. Each station in the global network will consist of an array of sensors. As the local surface wind strongly influences ambient infrasonic noise levels in the band of interest to the nuclear treaty monitoring community (between 0.05 and 4 Hz), each of these sensors will include a spatial filter...
متن کاملSeismic Response of 4-Legged Self-Supporting Telecommunication Towers
Telecommunication tower is an important component of the basic infrastructure of communication systems and thus preserving them in events of natural disasters - such as a severe earthquake - is of high priority. In past studies, researchers have mostly considered the effects of wind and earthquake-induced loads on 3-legged (triangular cross-section) self-supporting steel telecommunication tower...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards, Section C: Engineering and Instrumentation
سال: 1971
ISSN: 0022-4316
DOI: 10.6028/jres.075c.007