Download or read book Seismic Detection and Discrimination Using Ocean bottom Seismographs written by LeRoy M. Dorman and published by . This book was released on 1980 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research progress on seismic detection and discrimination using ocean-bottom seismographs (OBS's) is outlined. During this first year of DARPA contract work, our investigations have been focused primarily on using existing OBS data to address the problem of sea-floor seismic noise and to constrain models of the near-bottom seismic environment. We have completed noise studies at six of our previously occupied OBS sites. The noise levels of typical amplitude spectra roll off rapidly out to 2-4 Hz and much less rapidly beyond 4 Hz. At frequencies above 4 Hz, the noise levels are low, typically a few nanometers/Hz1/2 or less and comparable to good land-based stations. Several correlations between noise levels and other parameters, such as sediment thickness, distance from the continental margin and sea state, are discussed and used to constrain possible noise mechanisms. We hypothesize that the dominant mechanism of high-frequency (>2 Hz) noise generation at most of the sites examined thus far is of local oceanographic origin, exciting acoustic modes in the water column which couple to Stoneley modes at the sediment-water interface and waveguide modes within the sediment column. This hypothesis is supported by the analysis of noise data from two OBS arrays, which shows that the noise coherence is very low for pairs of sensors separated by as little as 200 m. We also outline some of the conclusions relevant to the seismic noise problem deduced by us from the data collected during the Lopez Island intercalibration experiment.
Download or read book Expedition Deep Ocean written by Josh Young and published by Simon and Schuster. This book was released on 2020-12-01 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: The riveting story of the exploration of the final frontier of our planet—the deep ocean—and history-making mission to reach the bottom of all five seas. Humankind has explored every continent on earth, climbed its tallest mountains, and gone into space. But the largest areas of our planet remain largely a mystery: the deep oceans. At over 36,000 feet deep, there areas closest to earth’s core have remained nearly impossible to reach—until now. Technological innovations, engineering breakthroughs and the derring-do of a team of explorers, led by explorer Victor Vescovo, brought together an audacious global quest to dive to the deepest points of all five oceans for the first time in history. The expedition pushed technology to the limits, mapped hidden landscapes, discover previously unknown life forms and began to piece together how life in the deep oceans effects our planet—but it was far from easy. Expedition Deep Ocean is the inside story of this exploration of one of the most unforgiving and mysterious places on our planet, including the site of the Titanic wreck and the little-understood Hadal Zone. Vescovo and his team would design the most advanced deep-diving submersible ever built, where the pressure on the sub is 8 tons per square inch—the equivalent of having 292 fueled and fully loaded 747s stacked on top of it. And then there were hurricane-laden ocean waters and the byzantine web of global oceanography politics. Expedition Deep Ocean reveals the marvelous and other-worldly life found in all five deep ocean trenches, including several new species that have posed as of yet unanswered questions about survival and migration from ocean to ocean. Then there are the newly discovered sea mounts that cause tsunamis when they are broken by shifting subduction plates and jammed back into the earth crust, something that can now be studied to predict future disasters. Filled with high drama, adventure and the thrill of discovery, Expedition Deep Ocean celebrates courage and ingenuity and reveals the majesty and meaning of the deep ocean.
Download or read book Octopus s Garden written by Cindy Van Dover and published by Addison Wesley Publishing Company. This book was released on 1996-01-02 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author, an oceanographer and submarine pilot, explores the life-forms living in deep-water hydrothermal vents on the ocean floor.
Download or read book Advances in ocean bottom seismology written by Francisco Javier Nuñez-Cornu and published by Frontiers Media SA. This book was released on 2023-03-27 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book At the Bottom of Shakespeare s Ocean written by Steve Mentz and published by A&C Black. This book was released on 2009-10-10 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: We need a poetic history of the ocean, and Shakespeare can help us find one. There's more real salt in the plays than we might expect. Shakespeare's dramatic ocean spans the God-sea of the ancient world and the immense blue vistas that early modern mariners navigated. Throughout his career, from the opening shipwrecks of The Comedy of Errors through The Tempest, Shakespeare's plays figure the ocean as shocking physical reality and mind-twisting symbol of change and instability. To fathom Shakespeare's ocean - to go down to its bottom - this book's chapters focus on different things that humans do with and in and near the sea: fathoming, keeping watch, swimming, beachcombing, fishing, and drowning. Mentz also sets Shakespeare's sea-poetry against modern literary sea-scapes, including the vast Pacific of Moby-Dick, the rocky coast of Charles Olson's Maximus Poems, and the lyrical waters of the postcolonial Caribbean. Uncovering the depths of Shakespeare's maritime world, this book draws out the centrality of the sea in our literary culture.
Download or read book A Hole in the Bottom of the Sea written by Jessica Law and published by Barefoot Books. This book was released on 2018-09-01 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover amazing and fascinating sea creatures in the hole in the bottom of the sea! Based on the traditional cumulative song, each verse introduces a new creature and its place in the food chain, with the shark chasing the eel, who chases the squid, who chases the snail. Enhanced CD includes videso animation and audio singalong.
Download or read book Geoacoustic Models of the Sea Floor written by E. L. Hamilton and published by . This book was released on 1965 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The information and technology necessary to derive a valid geological-geophysical-acoustic model of the sea floor are presented. Two contrasting models are detailed and discussed: one in the Bering Sea which has a shallow-water, high-velocity, hard-sand bottom; and the Mohole (Guadalupe Site) model which has a deep-water, low-velocity, soft-clay bottom. Other models are to be reported in a continuing series. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocean Mixing written by Michael Meredith and published by Elsevier. This book was released on 2021-09-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean Mixing: Drivers, Mechanisms and Impacts presents a broad panorama of one of the most rapidly-developing areas of marine science. It highlights the state-of-the-art concerning knowledge of the causes of ocean mixing, and a perspective on the implications for ocean circulation, climate, biogeochemistry and the marine ecosystem. This edited volume places a particular emphasis on elucidating the key future questions relating to ocean mixing, and emerging ideas and activities to address them, including innovative technology developments and advances in methodology. Ocean Mixing is a key reference for those entering the field, and for those seeking a comprehensive overview of how the key current issues are being addressed and what the priorities for future research are. Each chapter is written by established leaders in ocean mixing research; the volume is thus suitable for those seeking specific detailed information on sub-topics, as well as those seeking a broad synopsis of current understanding. It provides useful ammunition for those pursuing funding for specific future research campaigns, by being an authoritative source concerning key scientific goals in the short, medium and long term. Additionally, the chapters contain bespoke and informative graphics that can be used in teaching and science communication to convey the complex concepts and phenomena in easily accessible ways. - Presents a coherent overview of the state-of-the-art research concerning ocean mixing - Provides an in-depth discussion of how ocean mixing impacts all scales of the planetary system - Includes elucidation of the grand challenges in ocean mixing, and how they might be addressed
Download or read book Ocean Reverberation written by Dale D. Ellis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past decade there has been a renewed interest in active sonar systems at both low and medium frequencies. More recently this interest has been extended to very high frequencies in shallow water. Reverberation often limits the detection performance of these systems, and there is a need to understand the underlying mechanisms that cause the scattering. With more emphasis being given to reverberation phenomena in the Scientific Program of Work at the SACLANT Undersea Research Centre, it was considered an opportune time to host a meeting, bringing together scientists from NATO countries to foster cross-disciplinary dialogue and generate ideas for new research directions. Consequently the Ocean Reverberation Symposium was held 25-29 May 1992 in La Spezia, Italy. Over 60 presentations were made on a diverse selection of topics, of which ten papers will be published as a SACLANTCEN Conference Proceedings. The papers in this volume are grouped into 8 sections, usually in the same order as presented at the corresponding session of the Symposium: Section 1 - Scattering Mechanisms Section 2 - High Frequency Measurements and Mechanisms Section 3 - Reverberation Modelling Section 4 - ARSRP Mid-Atlantic Ridge Experiment Section 5 - Low Frequency Measurements Section 6 - Volume Scattering Section 7 - Signal Processing Issues Section 8 - Applications Taken together the papers show some emerging trends in the research.
Download or read book Physics of Tsunamis written by Boris Levin and published by Springer Science & Business Media. This book was released on 2008-10-27 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Till the very end of the twentieth century tsunami waves (or ‘waves in a harbour’, translated from Japanese) were considered an extremely rare and exotic natural p- nomenon, originating in the ocean and unexpectedly falling upon the seaside as gigantic waves. The 26th of December 2004, when tsunami waves wiped out, in a single day, more than 250,000 human lives, mourned in many countries, turned out to be a tragic date for all mankind. The authors of this book, who have studied tsunami waves for many years, - tended it to be a systematic exposition of modern ideas concerning • The mechanisms of tsunami wave generation • The peculiarities of tsunami wave propagation in the open ocean and of how waves run-up beaches • Methods for tsunami wave registration and the operation of a tsunami warning system • The mechanisms of other catastrophic processes in the ocean related to the se- mic activity of our planet The authors considered their main goal to be the creation of book prese- ing modern knowledge of tsunami waves and of other catastrophes in the ocean to scienti?c researchers and specialists in geophysics, oceanography, seismology, hydroacoustics, geology, geomorphology, civil and seaside engineering, postgr- uate students and students of relevant professions.
Download or read book Deep Ocean Journeys written by Cindy Lee Van Dover and published by Basic Books. This book was released on 1997-09-19 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientist and submersible pilot Cindy Lee Van Dover has travelled to the bottom of the sea. In this book she gives voice to the scientific passion that motivates her while taking us along with her as she reveals the wonders of the ocean floor.
Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 2005 with total page 1432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The American Journal of Science written by and published by . This book was released on 1915 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ESSA Symposium on Earthquake Prediction written by United States. Environmental Science Services Administration and published by . This book was released on 1966 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Departments of State Justice Commerce the Judiciary and Related Agencies Appropriations for 1972 Hearings 92d Congress 1st Session written by United States. Congress. House Appropriations and published by . This book was released on 1971 with total page 1576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Ship Hydrodynamics written by Lothar Birk and published by John Wiley & Sons. This book was released on 2019-04-25 with total page 703 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Ship Hydrodynamics: Fluid Mechanics, Ship Resistance and Propulsion Lothar Birk, University of New Orleans, USA Bridging the information gap between fluid mechanics and ship hydrodynamics Fundamentals of Ship Hydrodynamics is designed as a textbook for undergraduate education in ship resistance and propulsion. The book provides connections between basic training in calculus and fluid mechanics and the application of hydrodynamics in daily ship design practice. Based on a foundation in fluid mechanics, the origin, use, and limitations of experimental and computational procedures for resistance and propulsion estimates are explained. The book is subdivided into sixty chapters, providing background material for individual lectures. The unabridged treatment of equations and the extensive use of figures and examples enable students to study details at their own pace. Key features: • Covers the range from basic fluid mechanics to applied ship hydrodynamics. • Subdivided into 60 succinct chapters. • In-depth coverage of material enables self-study. • Around 250 figures and tables. Fundamentals of Ship Hydrodynamics is essential reading for students and staff of naval architecture, ocean engineering, and applied physics. The book is also useful for practicing naval architects and engineers who wish to brush up on the basics, prepare for a licensing exam, or expand their knowledge.
