Presents a collection of papers which appear in the September-October 2010 Geophysics special section, written by recognised experts in various areas of exploration geophysics, plus an additional group of papers drawn from Geophysics which address areas beyond those invited articles. The result is a snapshot of the state-of-the-art in the field.
The final orbit of Venus by the Magellan spacecraft in October 1994 brought to a close an exciting period of Venus reconnaissance and exploration. The scientific studies resulting from data collected by the Magellan, Galileo, and Pioneer missions are unprecedented in their detail for any planet except Earth. Venus II re-evaluates initial assessments of Venus in light of these and other spacecraft missions and ground-based observations conducted over the past 30 years. More than a hundred contributors summarize our current knowledge of the planet, consider points of disagreement in interpretation, and identify priorities for future research. Topics addressed include geology, surface processes, volcanism, tectonism, impact cratering, geodynamics, upper and lower atmospheres, and solar wind environment. The diversity of the coverage reflects the interdisciplinary nature of Venus science and the breadth of knowledge that has contributed to it. A CD-ROM developed by the Jet Propulsion Laboratory accompanies the book and incorporates text, graphics, video, software, and various digital products from selected contributors to the text. A multimedia interface allows users to navigate the text and the extensive databases included on the disk. Venus II is the most authoritative single volume available on the second planet. Its contents will not only help shape the goals of future Venus missions but will also enhance our understanding of current Mars explorations.
Geophysics in the Affairs of Man describes how geophysics has affected human affairs, with emphasis on the geophysical enterprise as an interplay of technical, social, and economic factors. Many of the key and intriguing developments that took place within several major fields of geophysics are divided into seven epochs, roughly broken into decades. Topics covered include the origins of the profession of geophysics, earth physics and oceanography, and geophysical aspects of undersea warfare. This book is comprised of nine chapters and begins with a discussion on some antecedents to the modern-day profession of geophysics through World War I. The following chapters focus on the golden days of exploration geophysics; classical seismology during the war years; the growth of geophysics during the 1950s; and the nature of the geophysical exploration industry. The closing chapter presents the views of numerous geophysicists about what they consider the most outstanding actions they were ever involved in, as well as what makes the profession unique. This monograph is written primarily for geophysicists, geologists, and geological engineers.
This book describes the application of non-destructive geophysical methods in subsurface archaeological features. Such non-destructive methods are magnetometry, electrical resistance, electromagnetic conductivity, magnetic susceptibility and ground penetrating radar. This book also includes the last improvements in instrumentation, data processing, and interpretations of the collected data sets leading to the rapid progress in geophysical applications in the field of archaeological investigations. The book also provides complete case-studies and archaeological interpretation obtained our results carried out in different localities around the world.
This book was primarily written for an audience that has heard about neural networks or has had some experience with the algorithms, but would like to gain a deeper understanding of the fundamental material. For those that already have a solid grasp of how to create a neural network application, this work can provide a wide range of examples of nuances in network design, data set design, testing strategy, and error analysis.Computational, rather than artificial, modifiers are used for neural networks in this book to make a distinction between networks that are implemented in hardware and those that are implemented in software. The term artificial neural network covers any implementation that is inorganic and is the most general term. Computational neural networks are only implemented in software but represent the vast majority of applications.While this book cannot provide a blue print for every conceivable geophysics application, it does outline a basic approach that has been used successfully.
1919/28 cumulation includes material previously issued in the 1919/20-1935/36 issues and also material not published separately for 1927/28. 1929/39 cumulation includes material previously issued in the 1929/30-1935/36 issues and also material for 1937-39 not published separately.
This personalized narrative is both a technical and economic history showing how exploration geophysics evolved from simple scientific beginnings into a sophisticated science impacting civilization in diverse ways. It presents geophysics as an intriguing scientific and technical field full of sharp contrasts, revealing it as an unusual blend of the theoretical and the practical, the laboratory and the field, the nonprofit effort and the profit-making venture, a cornerstone of peace and an implement of war. Written by members of the profession well acquainted with many of the key actions and players, this book describes intriguing developments and applications that took place within three interrelated fields of earth physics-exploration geophysics, seismology, and oceanography-during the never-ending search for oil and natural gas. Stressing challenge and change, this chronicle is bracketed by two major flex points in Western civilization-the initial waging of deadly global war (1914-18) and the conclusion in the 1990s of the Cold War that threatened civilization with nuclear annihilation. It is a complex story of people and events that highlights the emergence of major industries on the international scene. The book is must reading for all practicing earth scientists and their families, investors in the industry, and people interested in economic geology, public and world affairs, military warfare, the history of science and technology, environmental sciences, and even outdoor adventure.