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A collection of papers edited by four experts in the field, this book sets out to describe the way solar activity is manifested in observations of the solar interior, the photosphere, the chromosphere, the corona and the heliosphere. The 11-year solar activity cycle, more generally known as the sunspot cycle, is a fundamental property of the Sun. This phenomenon is the generation and evolution of magnetic fields in the Sun’s convection zone, the photosphere. It is only by the careful enumeration and description of the phenomena and their variations that one can clarify their interdependences. The sunspot cycle has been tracked back about four centuries, and it has been recognized that to m...
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In its revised 2nd edition, this book examines current understanding of the relationship between sunspots and the Earth's climate. Opening with a brief historical review, the text moves on to scrutinize the various current hypotheses. The focus is on how information on the solar cycle and Earth's climate is gathered, and includes discussion of observations, methododology and the physics involved, with the necessary statistics and analysis also provided.
This book offers an overview of solar physics with a focus on solar activity, particularly the activity cycle. It is known that solar activity varies periodically, but there are also phases of intermittency, such as the Maunder minimum, during which solar activity is very low or high over several decades. The book provides a brief introduction to chaos theory and investigates solar activity in terms of its chaotic behavior. It also discusses how intermittent phases of solar activity have affected and can affect Earth’s climate and long-term space weather, and reviews the underlying theories relating to the solar dynamo mechanism. Furthermore, each chapter includes references to scientific literature (review articles and papers) so that readers can delve deeper into the subjects covered. This richly illustrated book will appeal to a wide readership, and is also useful as a textbook for courses in solar physics and astrophysics.
Mesoamerican Rituals and the Solar Cycle: New Perspectives on the Veintena Festivals investigates the religious and social aspects of the 365-day-calendar festivals in ancient Pre-Columbian societies, revisiting long-standing discussions while also exploring this seminal topic in innovative ways.
A timely and authoritative synthesis of our understanding of activity cycles in the Sun and similar stars for graduate students and researchers.
This book contains most of the invited papers and contributions pre sented at the Symposium/Workshop on Solar-Terrestrial Influences on Weather and Climate which was held at The Ohio State University on 24-28 July 1978. The authors and publisher have made a special effort for rapid publi cation. The length of the individual papers in this book were delib erately limited by the editors. Direct financial support for the Symposium/Workshop was provided by NASA. Palo Alto Billy M. McCormac Columbus Thomas A. Seliga January 1979 xiii SYMPOSIUH/WORKSHOP CONCLUSIONS Billy M. McCormac Department 52-l0/B202 Lockheed Palo Alto Research Laboratory 3251 Hanover Street Palo Alto, CA 94304 USA Thomas A. S...
Understanding how the Sun changes though its 11-year sunspot cycle and how these changes affect the vast space around the Sun – the heliosphere – has been one of the principal objectives of space research since the advent of the space age. This book presents the evolution of the heliosphere through an entire solar activity cycle. The last solar cycle (cycle 23) has been the best observed from both the Earth and from a fleet of spacecraft. Of these, the joint ESA-NASA Ulysses probe has provided continuous observations of the state of the heliosphere since 1990 from a unique vantage point, that of a nearly polar orbit around the Sun. Ulysses’ results affect our understanding of the heliosphere from the interior of the Sun to the interstellar medium - beyond the outer boundary of the heliosphere. Written by scientists closely associated with the Ulysses mission, the book describes and explains the many different aspects of changes in the heliosphere in response to solar activity. In particular, the authors describe the rise in solar activity from the last minimum in solar activity in 1996 to its maximum in 2000 and the subsequent decline in activity.
So begins one of the most celebrated stories in fantasy literature . . . packed full of mystery, deep themes and incredible prose, meet Severian the Torturer and follow him on his journey across the great world of Urth Severian is a torturer, born to the guild and with an exceptionally promising career ahead of him . . . until he falls in love with one of his victims, a beautiful young noblewoman. Her excruciations are delayed for some months and, out of love, Severian helps her commit suicide and escape her fate. For a torturer, there is no more unforgivable act. In punishment he is exiled from the guild and his home city to the distant metropolis of Thrax with little more than Terminus Est...
Measurements of solar irradiance, both bolometric and at various wavelengths, over the last two decades have established conclusively that the solar energy flux varies on a wide range of time scales, from minutes to the 11-year solar cycle. The major question is how the solar variability influences the terrestrial climate. The Solar Electromagnetic Radiation Study for Solar Cycle 22 (SOLERS22) is an international research program operating under the auspices of the Solar-Terrestrial Energy Program (STEP) Working Group 1: `The Sun as a Source of Energy and Disturbances'. STEP is sponsored by the Scientific Committee of Solar-Terrestrial Physics (SCOSTEP) of the International Council of Scientific Unions (ICSU). The main goal of the SOLERS22 1996 Workshop was to bring the international research community together to review the most recent results obtained from observations, theoretical interpretation, empirical and physical models of the variations in the solar energy flux and their possible impact on climate studies. These questions are essential for researchers and graduate students in solar-terrestrial physics.