The Earth's Magnetic Interior


Book Description

This volume combines review and solicited contributions, related to scientific studies of Division I of IAGA presented at its Scientific Assembly in Sopron in 2009. The book is aimed at intermediate to advanced readers dealing with the Earth’s magnetic field generation, its historical records in rocks and geological formations - including links to geodynamics and magnetic dating, with magnetic carriers in earth materials, electromagnetic induction and conductivity studies of the Earth interior with environmental applications of rock magnetism and electromagnetism. The aim of the book is to provide an overview of recent advances and future challenges in these particular fields of research.




The Magnetic Field of the Earth


Book Description

Topics involved in studies of the Earth's magnetic field and its secular variation range from the intricate observations of geomagnetism, to worldwide studies of archeomagnetism and paleomagnetism, through to the complex mathematics of dynamo theory. Traditionally these different aspects of geomagnetism have in the main been studied and presented in isolation from each other. This text draws together these lines of inquiry into an integrated framework to highlight the interrelationships and thus to provide a more comprehensive understanding of the geomagnetic field.







Geomagnetism, Aeronomy and Space Weather


Book Description

An interdisciplinary review of research in geomagnetism, aeronomy and space weather, written by eminent researchers from these fields.




Geomagnetic Observations and Models


Book Description

This volume provides comprehensive and authoritative coverage of all the main areas linked to geomagnetic field observation, from instrumentation to methodology, on ground or near-Earth. Efforts are also focused on a 21st century e-Science approach to open access to all geomagnetic data, but also to the data preservation, data discovery, data rescue, and capacity building. Finally, modeling magnetic fields with different internal origins, with their variation in space and time, is an attempt to draw together into one place the traditional work in producing models as IGRF or describing the magnetic anomalies.




Physics of the Earth's Interior


Book Description

Physics of the Earth's Interior embraces such a wide range of properties and processes that the space available in one volume imposes severe limitations on their discussion. Moreover, the uneven familiarity of any geophysicist with the many fields of natural science which are involved favors their uneven treatment. For these reasons, the author has limited discussions related to gravity, terrestrial magnetism, tectonic processes, and the history of the earth, to such problems which, if solved, may give information on the earth's interior. On the other hand, seismological investigations are discussed only insofar as they bear upon the structure of the earth and the physics of its interior; seismology is to be treated in detail in another monograph of this series. The book contains nine chapters and begins with a discussion of methods of investigating the earth's interior, and the accuracy of the results. This is followed by separate chapters on the structure of the earth; the crust, mantle, and core; temperature and thermal processes in the earth; density, pressure, gravity, and flattening in the earth; elastic constants, and elastic processes; and nonelastic processes in the earth.




Aeronomy of the Earth's Atmosphere and Ionosphere


Book Description

This book is a multi-author treatise on the most outstanding research problems in the field of the aeronomy of the Earth’s atmosphere and ionosphere, encompassing the science covered by Division II of the International Association of Geomagnetism and Aeronomy (IAGA). It contains several review articles and detailed papers by leading scientists in the field. The book is organized in five parts: 1) Mesosphere-Lower Thermosphere Dynamics and Chemistry; 2) Vertical Coupling by Upward Propagating Waves; 3) Ionospheric Electrodynamics and Structuring; 4) Thermosphere- Ionosphere Coupling, Dynamics and Trends and 5) Ionosphere-Thermosphere Disturbances and Modeling. The book consolidates the progress achieved in the field in recent years and it serves as a useful reference for graduate students as well as experienced researchers.




Electromagnetism and the Earth's Interior


Book Description

Electromagnetism and the Earth's Interior reviews the earth's magnetic fields in terms of physical processes that are occurring in the earth's interior. The book describes the distribution of the earth's magnetic field in terms of declination, horizontal intensity, and vertical intensity. The dynamo theory concerns the self-exciting electric generation in the interior of the earth, and can account for any geomagnetic secular variation. A workable laboratory model—a dynamo mechanism of Lowes and Wilkinson (1963) has a significant role on the dynamo theory for the model actually demonstrated Herzenberg's proof that was developed mathematically. The text also describes various aspects of long-term geomagnetic variations, such as the decrease in the dipole moment, the reversal of the geomagnetic field, the drift of eccentric dipole, the fluctuation in the length of day, and the geomagnetic secular variation. The book also investigates the possible effects of the ocean on geomagnetic variations. The characteristics of transient geomagnetic variations on islands can point to a possible special underground structure. The book is suitable for geologists, astrophysicists, seismologists, and students of the natural sciences.




Deep Interior of the Earth


Book Description

For geophysicists and geologists, explains how interactions between the earth's mantle and core affect tectonic plate movement and magnetic processes. Annotation copyrighted by Book News, Inc., Portland, OR




Earth's Magnetic Field


Book Description

This volume provides a comprehensive view on the different sources of the geomagnetic field both in the Earth’s interior and from the field’s interaction with the terrestrial atmosphere and the solar wind. It combines expertise from various relevant areas of geomagnetic and near Earth space research with the aim to better characterise the state and dynamics of Earth’s magnetic field. Advances in the exploitation of geomagnetic observations hold a huge potential not only for an improved quantitative description of the field source but also for a better understanding of the underlying processes and physics. Key is the separation of the field sources in the observations, especially, but not solely, during times of quiet geomagnetic conditions, when the most subtle geomagnetic effects can be identified and become significant. The collected articles are based on the current constellation of ground and space observations, and on state-of-the-art empirical models and physics-based simulations. Thus, it provides an in-depth overview over recent achievements, current limitations and challenges, and future opportunities in the field of geomagnetism and space sciences. Originally published in Space Science Reviews, Volume 206, Issue 1-4, March 2017