Download or read book Temporal Attributes of the Ambient Seismo acoustic Environment written by James C. Battis and published by . This book was released on 1989 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temporal Attributes of the Ambient Seismo acoustic Environment written by James C. Battis and published by . This book was released on 1989 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the period 9 to 29 October 1986, seismic and atmospheric pressure data were recorded at the AFGL operated array at La Junta, Colorado. The purpose of this effort was to develop statistical models of the noise environments at this site for use in defining event detection capabilities of the array. Analysis of these data demonstrates that peak noise amplitudes for 1-second windows could adequately be modeled as Type II Gumbel extreme value distributions, EXII (u, k). Further, it was shown that there is at best only weak correlation between the noise fields in both a broad-and narrow-band sense.
Download or read book Environmental Research Papers written by and published by . This book was released on with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1990 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Seismic acoustic Study of Low Altitude Air Blasts at Ft Devens Massachusetts written by Janet C. Johnston and published by . This book was released on 1990 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: On 5 May 1986, 3 packages of TNT were detonated 100 ft in the air above the Turner Drop Zone at Ft. Devens, Massachusetts. The aerial explosions were recorded by seismic and acoustic sensors over 2 linear arrays that covered the distance range from 0 to 1000 meters. One array was installed over flat topography, while the other was installed across a hill with 80 ft of relief. The goal of the experiment was to examine the response of the ground and the air to a unit impulse. Although recording of the higher frequencies generated by the blasts was limited by the sampling rate capability of the equipment (100 and 200 samples/sec) it was clear that the hill produced a sheltering effect. Considerable transverse motion appeared in the records. Reduced time plots revealed a propagation speed of 0.35 km/sec corresponding primarily to an airwave induced seismic signal, although some seismic precursors are evident. The ratio of peak seismic velocity to pressure ranged from 10-4 cm/sec/Pa for the line that transversed the hill to .00001 cm/sec/Pa for the flat array. The experiment should be repeated in the same area during different seasonal coverings (snow and ice) and extended to areas with more complex topography and different vegetation. In future experiments the position of the air blasts should be varied to facilitate discrimination of paths to the receivers. The results could be extrapolated to an extended, continuous source such as a low flying aircraft or cruise missile.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seismic Ambient Noise written by Nori Nakata and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of seismic ambient noise, covering observations, physical origins, modelling, processing methods and applications in imaging and monitoring.
Download or read book Oceanobs 19 An Ocean of Opportunity Volume I written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Download or read book Aural Experience and Soundscape Management written by Diana Grgurić and published by CRC Press. This book was released on 2024-03-19 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since technological progress is characterized by the dual effects, positive and negative, it is precisely by sustaining the balance between such binaries that ecologically responsible resource management is restored as a solution for excessive human impact on the environment. Sound and music became relevant from the perspective of management, within the meaning of controlling their negative effects on human beings and their environment as well as utilizing them for meeting human needs. This book integrates the fields of technology, humanities, and social sciences and defines the challenges of noise control from the perspective of acoustic ecology. It discusses the concept of acoustic ecology applied to evoke sound and music management and design solutions for well-being. It will be equally useful for students of electrical engineering, music, and economics; equally challenging to those with a particular prior knowledge and practice; and as much as comprehensive and stimulative for those who are barely embarking upon a new adventure.
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of the Acoustics Division of the Naval Research Laboratory written by Fred Tudor Erskine and published by . This book was released on 2013 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Governance of Arctic Shipping written by Aldo Chircop and published by Springer Nature. This book was released on 2020-08-11 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book is a result of the Dalhousie-led research project Safe Navigation and Environment Protection, supported by a grant from the Ocean Frontier Institute’s the Canada First Research Excellent Fund (CFREF). The book focuses on Arctic shipping and investigates how ocean change and anthropogenic impacts affect our understanding of risk, policy, management and regulation for safe navigation, environment protection, conflict management between ocean uses, and protection of Indigenous peoples’ interests. A rapidly changing Arctic as a result of climate change and ice loss is rendering the North more accessible, providing new opportunities while producing impacts on the Arctic. The book explores ideas for enhanced governance of Arctic shipping through risk-based planning, marine spatial planning and scaling up shipping standards for safety, environment protection and public health.
Download or read book Management Plan for Ocean Environmental Acoustics Programs in Support of Mobile Sonar Technology Development written by Carey D. Smith and published by . This book was released on 1975 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of the U.S. Navy as a credible world sea power is placing increasing demands on sonar systems development for ASW. The management of the Navy's Ocean Environmental Acoustic Program (EVA) is of great concern because of the critical nature of this support service to systems development. At present, sonar developers and operators do not have sufficient EVA data and models available for optimum systems design and use. The deficiency is primarily due to a technological gap between EVA program outputs and the system developers requirements. The most effective and efficient management and implementation of the EVA program is therefore required. A detailed plan for a program management structure in NAVSEA (Sonar Technology Division) is presented; it calls for the establishment of a technical group assigned the responsibility for developing and maintaining a working relationship between environmental acousticians and systems developers.
Download or read book Towards Improved Forecasting of Volcanic Eruptions written by Corentin Caudron and published by Frontiers Media SA. This book was released on 2020-04-01 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Environmental Assessment written by Eric Pouliquen and published by Nato Saclant Centre. This book was released on 1997 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Sound Artists written by Frederick Bianchi and published by Oxford University Press. This book was released on 2016-06-10 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Sound Artists: In Their Own Words is an incisive and imaginative look at the international environmental sound art movement, which emerged in the late 1960s. The term environmental sound art is generally applied to the work of sound artists who incorporate processes in which the artist actively engages with the environment. While the field of environmental sound art is diverse and includes a variety of approaches, the art form diverges from traditional contemporary music by the conscious and strategic integration of environmental impulses and natural processes. This book presents a current perspective on the environmental sound art movement through a collection of personal writings by important environmental sound artists. Dismayed by the limitations and gradual breakdown of contemporary compositional strategies, environmental sound artists have sought alternate venues, genres, technologies, and delivery methods for their creative expression. Environmental sound art is especially relevant because it addresses political, social, economic, scientific, and aesthetic issues. As a result, it has attracted the participation of artists internationally. Awareness and concern for the environment has connected and unified artists across the globe and has achieved a solidarity and clarity of purpose that is singularly unique and optimistic. The environmental sound art movement is borderless and thriving.
Download or read book Ocean Noise and Marine Mammals written by National Research Council and published by National Academies Press. This book was released on 2003-05-22 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the 119 species of marine mammals, as well as for some other aquatic animals, sound is the primary means of learning about the environment and of communicating, navigating, and foraging. The possibility that human-generated noise could harm marine mammals or significantly interfere with their normal activities is an issue of increasing concern. Noise and its potential impacts have been regulated since the passage of the Marine Mammal Protection Act of 1972. Public awareness of the issue escalated in 1990s when researchers began using high-intensity sound to measure ocean climate changes. More recently, the stranding of beaked whales in proximity to Navy sonar use has again put the issue in the spotlight. Ocean Noise and Marine Mammals reviews sources of noise in the ocean environment, what is known of the responses of marine mammals to acoustic disturbance, and what models exist for describing ocean noise and marine mammal responses. Recommendations are made for future data gathering efforts, studies of marine mammal behavior and physiology, and modeling efforts necessary to determine what the long- and short-term impacts of ocean noise on marine mammals.
