Imaging the Rupture Processes of Earthquakes Using the Relative Back-Projection Method

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Publisher : Springer
ISBN 13 : 3662552396
Total Pages : 117 pages
Book Rating : 4.6/5 (625 download)

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Book Synopsis Imaging the Rupture Processes of Earthquakes Using the Relative Back-Projection Method by : Hao Zhang

Download or read book Imaging the Rupture Processes of Earthquakes Using the Relative Back-Projection Method written by Hao Zhang and published by Springer. This book was released on 2017-12-27 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis adopts the relative back-projection method to dramatically reduce “swimming” artifacts by identifying the rupture fronts in the time window of a reference station; this led to a faster and more accurate image of the rupture processes of earthquakes. Mitigating the damage caused by earthquakes is one of the primary goals of seismology, and includes saving more people’s lives by devising seismological approaches to rapidly analyze an earthquake’s rupture process. The back-projection method described in this thesis can make that a reality.

Earthquake Rupture Imaging and Multiscale Stress Drop Estimation

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Author :
Publisher : ProQuest
ISBN 13 : 9780549598404
Total Pages : 146 pages
Book Rating : 4.5/5 (984 download)

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Book Synopsis Earthquake Rupture Imaging and Multiscale Stress Drop Estimation by : Bettina P. Allmann

Download or read book Earthquake Rupture Imaging and Multiscale Stress Drop Estimation written by Bettina P. Allmann and published by ProQuest. This book was released on 2008 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigation of earthquake source parameters is important for better understanding of the physics behind earthquakes, which is essential for mitigating the hazards of destructive earthquakes. This dissertation explores several different aspects of source parameter estimation. First, I image the rupture process of the 2004 M6.0 Parkfield earthquake in three dimensions using a waveform back-projection method. I identify a distinct secondary high-frequency phase that radiated from a point about 13 km northwest of the hypocenter. Together with existing slip model inversions of the Parkfield earthquake, these results constrain several physical properties of the rupture process. Second, I use an iterative least-squares approach on both local and global seismic data to isolate source spectra from attenuation and near-station site effects and apply an empirical Green's function correction for near-source attenuation. Brune-type stress drop estimates for small earthquakes in the Parkfield area and for moderate to large earthquakes worldwide range from 0.1 to 50 MPa, with robust lateral variations in average stress drop. In Parkfield some of these variations change temporally after the 2004 M6.0 Parkfield earthquake. On a global scale, the stress drop variations are usually confined to specific plate boundaries or tectonic regimes. The highest average stress drops occur for oceanic transform fault earthquakes and other strike-slip events. Intraplate events have a factor of two higher average stress drops than interplate events. Stress drops of both small earthquakes in Parkfield and larger global earthquakes show no dependence on moment. Our stress-drop estimates, combined with other published results, provide strong evidence that earthquakes exhibit self-similarity over most of the instrumentally observable magnitude range. Finally, using the spectral separation method to discriminate between natural seismicity and man-made explosions, I find that the best single waveform discriminant for data recorded in southern California is the RMS-misfit between quarry blast spectra and an w-2 source model.

AutoBATS and 3D MUSIC: New Approaches to Imaging Earthquake Rupture Behaviors

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Publisher : Springer Nature
ISBN 13 : 9811655847
Total Pages : 110 pages
Book Rating : 4.8/5 (116 download)

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Book Synopsis AutoBATS and 3D MUSIC: New Approaches to Imaging Earthquake Rupture Behaviors by : Pei-Ru Jian

Download or read book AutoBATS and 3D MUSIC: New Approaches to Imaging Earthquake Rupture Behaviors written by Pei-Ru Jian and published by Springer Nature. This book was released on 2021-09-27 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the kinematic earthquake rupture studies from moment tenor to spatial-temporal rupture imaging. For real-time seismic hazard monitoring, the new stable automatic moment tensor (AutoBATS) algorithm is developed and implemented for the real-time MT reports by the Taiwan Earthquake Science Information System (TESIS). In order to understand the rupture behavior of the 2013 Mw 8.3 Okhotsk deep earthquake sequence, the 3D MUltiple SIgnal Classification Back Projection (MUSIC BP) with P and pP phases is applied. The combined P- and pP-wave BP imaging of the mainshock shows two stages of anti-parallel ruptures along two depths separating for about 10~15 km. Unusual super-shear ruptures are observed through the 3D BP images of two Mw 6.7 aftershocks. In last two chapters, the 3D BP imaging reveals similar rupture properties of two shallow catastrophic earthquakes (Mw=6.4) in southwestern Taiwan. Both the 2010 Jiashian and 2016 Meinong earthquakes ruptured westward with similar velocity of ~2.5 km/s along a NE-ward shallow dipping blind fault. The rupture similarities of the doublet suggest two parallel elongate asperities along the causative fault. After several decades of seismic quiescence, the 2010 Jiashian event initiated the rupture at the deeper asperity and triggered the shallower asperity which caused catastrophes six years later.

Treatise on Geophysics

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Publisher : Elsevier
ISBN 13 : 0444538038
Total Pages : 5604 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Treatise on Geophysics by :

Download or read book Treatise on Geophysics written by and published by Elsevier. This book was released on 2015-04-17 with total page 5604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Geophysics, Second Edition, is a comprehensive and in-depth study of the physics of the Earth beyond what any geophysics text has provided previously. Thoroughly revised and updated, it provides fundamental and state-of-the-art discussion of all aspects of geophysics. A highlight of the second edition is a new volume on Near Surface Geophysics that discusses the role of geophysics in the exploitation and conservation of natural resources and the assessment of degradation of natural systems by pollution. Additional features include new material in the Planets and Moon, Mantle Dynamics, Core Dynamics, Crustal and Lithosphere Dynamics, Evolution of the Earth, and Geodesy volumes. New material is also presented on the uses of Earth gravity measurements. This title is essential for professionals, researchers, professors, and advanced undergraduate and graduate students in the fields of Geophysics and Earth system science. Comprehensive and detailed coverage of all aspects of geophysics Fundamental and state-of-the-art discussions of all research topics Integration of topics into a coherent whole

Impacts and Insights of the Gorkha Earthquake

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Publisher : Elsevier
ISBN 13 : 0128128097
Total Pages : 194 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Impacts and Insights of the Gorkha Earthquake by : Dipendra Gautam

Download or read book Impacts and Insights of the Gorkha Earthquake written by Dipendra Gautam and published by Elsevier. This book was released on 2017-09-12 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impacts and Insights of Gorkha Earthquake in Nepal offers a practical perspective on disaster risk management using lessons learned and considerations from the 2015 Gorkha earthquake in Nepal, which was the worst disaster to hit Nepal since the 1934 Nepal–Bihar earthquake. Using a holistic approach to examine seismicity, risk perception and intervention, the book serves as a detailed case study to improve disaster resilience globally, including social, technical, governmental and institutional risk perception, as well as scientific understanding of earthquake disasters. Covering the details of the Gorkha earthquake, including damage mapping and recovery tactics, the book offers valuable insights into ways forward for seismologists, earthquake researchers and engineers and policy-makers. Includes the latest status of seismic risk, risk perception, to-date interventions and historical scenarios in Nepal Examines details of Gorkha earthquake, including geo-seismicity, damage statistics, casualties, effect on cultural heritage, gender-risk mechanics, case studies of social institutions, urban-risk mechanics, rural-risk mechanics, resilience dimensions, social institutions in risk management, stories of resilience and failures and a critical review of efficacy of interventions in risk mitigation Offers future insights and ways forward in terms of risk reduction studies, socio-cultural dimensions of risk management, scientific intervention and policy making, implementation of existing frameworks and endorsement of resilient practices for Nepal Includes damage mapping in all affected areas

Characteristics of Hawaiian Volcanoes

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Publisher : Government Printing Office
ISBN 13 : 9781411338722
Total Pages : 442 pages
Book Rating : 4.3/5 (387 download)

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Book Synopsis Characteristics of Hawaiian Volcanoes by : Michael P. Poland

Download or read book Characteristics of Hawaiian Volcanoes written by Michael P. Poland and published by Government Printing Office. This book was released on 2014 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characteristics of Hawaiian Volcanoes establishes a benchmark for the currrent understanding of volcanism in Hawaii, and the articles herein build upon the elegant and pioneering work of Dutton, Jagger, Steams, and many other USGS and academic scientists. Each chapter synthesizes the lessons learned about a specific aspect of volcanism in Hawaii, based largely o continuous observation of eruptive activity and on systematic research into volcanic and earthquake processes during HVO's first 100 years. NOTE: NO FURTHER DISCOUNTS FOR ALREADY REDUCED SALE ITEMS.

Advances in Seismic Event Location

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Publisher : Springer Science & Business Media
ISBN 13 : 9401595364
Total Pages : 271 pages
Book Rating : 4.4/5 (15 download)

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Book Synopsis Advances in Seismic Event Location by : Cliffort H. Thurber

Download or read book Advances in Seismic Event Location written by Cliffort H. Thurber and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Seismic Event Location provides a broad overview of the fundamental issues involved in seismic event location, and presents a variety of state-of-the-art location methods and applications at a wide range of spatial scales. Three important themes in the book are: seismic monitoring for a Comprehensive Nuclear-Test-Ban Treaty (CTBT), seismic event location in three-dimensional Earth models, and methods for multiple-event location. Each chapter contains background material to help readers less familiar with the topics covered, as well as to provide abundant references for readers interested in probing deeper into a topic. However, most of the emphasis is on recent advances in methodology and their application. Audience: The book is intended primarily for academic and professional researchers and graduate students in seismology.

Imaging, Modeling and Assimilation in Seismology

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Publisher : Walter de Gruyter
ISBN 13 : 3110259036
Total Pages : 273 pages
Book Rating : 4.1/5 (12 download)

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Book Synopsis Imaging, Modeling and Assimilation in Seismology by : Yong-Gang Li

Download or read book Imaging, Modeling and Assimilation in Seismology written by Yong-Gang Li and published by Walter de Gruyter. This book was released on 2012-02-22 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents current approaches in geophysical research of earthquakes. A global authorship from top institutions presents case studies to model, measure, and monitor earthquakes. Among others a full-3D waveform tomography method is introduced, as well as propagator methods for modeling and imaging. In particular the earthquake prediction method makes this book a must-read for researchers in the field.

Foundations of Modern Global Seismology

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Publisher : Academic Press
ISBN 13 : 0128165170
Total Pages : 604 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Foundations of Modern Global Seismology by : Charles J. Ammon

Download or read book Foundations of Modern Global Seismology written by Charles J. Ammon and published by Academic Press. This book was released on 2020-10-13 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Global Seismology, Second Edition, is a complete, self-contained primer on seismology, featuring extensive coverage of all related aspects—from observational data through prediction—and emphasizing the fundamental theories and physics governing seismic waves, both natural and anthropogenic. Based on thoroughly class-tested material, the text provides a unique perspective on Earth’s large-scale internal structure and dynamic processes, particularly earthquake sources, and the application of theory to the dynamic processes of the earth’s upper layer. This insightful new edition is designed for accessibility and comprehension for graduate students entering the field. Exploration seismologists will also find it an invaluable resource on topics such as elastic-wave propagation, seismic instrumentation, and seismogram analysis. Includes more than 400 illustrations, from both recent and traditional research articles, to help readers visualize mathematical relationships, as well as boxed features to explain advanced topics Offers incisive treatments of seismic waves, waveform evaluation and modeling, and seismotectonics, as well as quantitative treatments of earthquake source mechanics and numerous examples of modern broadband seismic recordings Covers current seismic instruments and networks and demonstrates modern waveform inversion methods Includes extensive, updated references for further reading new to this edition Features reorganized chapters split into two sections, beginning with introductory content such as tectonics and seismogram analysis, and moving on to more advanced topics, including seismic wave excitation and propagation, multivariable and vector calculus, and tensor approaches Completely updated references and figures to bring the text up to date Includes all-new sections on recent advancements and to enhance examples and understanding Split into shorter chapters to allow more flexibility for instructors and easier access for researchers, and includes exercises

Seismological Report

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Publisher :
ISBN 13 :
Total Pages : 82 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Seismological Report by :

Download or read book Seismological Report written by and published by . This book was released on 1928 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Earthquake Early Warning Systems

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Publisher : Springer Science & Business Media
ISBN 13 : 3540722416
Total Pages : 363 pages
Book Rating : 4.5/5 (47 download)

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Book Synopsis Earthquake Early Warning Systems by : Paolo Gasparini

Download or read book Earthquake Early Warning Systems written by Paolo Gasparini and published by Springer Science & Business Media. This book was released on 2007-08-10 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides information on the major EEW systems in operation and on the state-of-the-art of the different blocks forming an EW system: the rapid detection and estimation of the earthquake’s focal parameters, the signal transmission, the engineering interface and the information reliability/false alarm problem. It is the first time that so many aspects of EEW systems have been specifically focused upon within a single book.

An Introduction to Seismology, Earthquakes, and Earth Structure

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Publisher : John Wiley & Sons
ISBN 13 : 1118687450
Total Pages : 512 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis An Introduction to Seismology, Earthquakes, and Earth Structure by : Seth Stein

Download or read book An Introduction to Seismology, Earthquakes, and Earth Structure written by Seth Stein and published by John Wiley & Sons. This book was released on 2013-05-30 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Seismology, Earthquakes and Earth Structures is an introduction to seismology and its role in the earth sciences, and is written for advanced undergraduate and beginning graduate students. The fundamentals of seismic wave propagation are developed using a physical approach and then applied to show how refraction, reflection, and teleseismic techniques are used to study the structure and thus the composition and evolution of the earth. The book shows how seismic waves are used to study earthquakes and are integrated with other data to investigate the plate tectonic processes that cause earthquakes. Figures, examples, problems, and computer exercises teach students about seismology in a creative and intuitive manner. Necessary mathematical tools including vector and tensor analysis, matrix algebra, Fourier analysis, statistics of errors, signal processing, and data inversion are introduced with many relevant examples. The text also addresses the fundamentals of seismometry and applications of seismology to societal issues. Special attention is paid to help students visualize connections between different topics and view seismology as an integrated science. An Introduction to Seismology, Earthquakes, and Earth Structure gives an excellent overview for students of geophysics and tectonics, and provides a strong foundation for further studies in seismology. Multidisciplinary examples throughout the text - catering to students in varied disciplines (geology, mineralogy, petrology, physics, etc.). Most up to date book on the market - includes recent seismic events such as the 1999 Earthquakes in Turkey, Greece, and Taiwan). Chapter outlines - each chapter begins with an outline and a list of learning objectives to help students focus and study. Essential math review - an entire section reviews the essential math needed to understand seismology. This can be covered in class or left to students to review as needed. End of chapter problem sets - homework problems that cover the material presented in the chapter. Solutions to all odd numbered problem sets are listed in the back so that students can track their progress. Extensive References - classic references and more current references are listed at the end of each chapter. A set of instructor's resources containing downloadable versions of all the figures in the book, errata and answers to homework problems is available at: http://levee.wustl.edu/seismology/book/. Also available on this website are PowerPoint lecture slides corresponding to the first 5 chapters of the book.

TAO

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Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis TAO by :

Download or read book TAO written by and published by . This book was released on 2008 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Complex Faulting Process of Earthquakes

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Publisher : Springer Science & Business Media
ISBN 13 : 9401732612
Total Pages : 207 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis The Complex Faulting Process of Earthquakes by : J. Koyama

Download or read book The Complex Faulting Process of Earthquakes written by J. Koyama and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: In seismology an earthquake source is described in terms of a fault with a particular rupture size. The faulting process of large earthquakes has been investigated in the last two decades through analyses of long-period seismo grams produced by advanced digital seismometry. By long-period far-field approximation, the earthquake source has been represented by physical parameters such as s~ismic moment, fault dimension and earthquake mag nitude. Meanwhile, destruction often results from strong ground motion due to large earthquakes at short distances. Since periods of strong ground motion are far shorter than those of seismic waves at teleseismic distances, the theory of long-period source process of earthquakes cannot be applied directly to strong ground motion at short distances. The excitation and propagation of high-frequency seismic waves are of special interest in recent earthquake seismology. In particular, the descrip tion and simulation of strong ground motion are very important not only for problems directly relevant to earthquake engineering, but also to the frac ture mechanics of earthquake faulting. Understanding of earthquake sources has been developed by investigating the complexity of faulting processes for the case of large earthquakes. Laboratory results on rock failures have also advanced the understanding of faulting mechanisms. Various attempts have been made to simulate, theoretically and empirically, the propagation of short-period seismic waves in the heterogeneous real earth.

International Handbook of Earthquake & Engineering Seismology

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Publisher : Elsevier
ISBN 13 : 9780080489223
Total Pages : 1200 pages
Book Rating : 4.4/5 (892 download)

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Book Synopsis International Handbook of Earthquake & Engineering Seismology by : William H.K. Lee

Download or read book International Handbook of Earthquake & Engineering Seismology written by William H.K. Lee and published by Elsevier. This book was released on 2002-09-27 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern scientific investigations of earthquakes began in the 1880s, and the International Association of Seismology was organized in 1901 to promote collaboration of scientists and engineers in studying earthquakes. The International Handbook of Earthquake and Engineering Seismology, under the auspices of the International Association of Seismology and Physics of the Earth's Interior (IASPEI), was prepared by leading experts under a distinguished international advisory board and team of editors. The content is organized into 56 chapters and includes over 430 figures, 24 of which are in color. This large-format, comprehensive reference summarizes well-established facts, reviews relevant theories, surveys useful methods and techniques, and documents and archives basic seismic data. It will be the authoritative reference for scientists and engineers and a quick and handy reference for seismologists. Also available is The International Handbook of Earthquake and Engineering Seismology, Part B. Two CD-ROMs containing additional material packaged with the text

Earthquake Source Asymmetry, Structural Media and Rotation Effects

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 3540313370
Total Pages : 582 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Earthquake Source Asymmetry, Structural Media and Rotation Effects by : Roman Teisseyre

Download or read book Earthquake Source Asymmetry, Structural Media and Rotation Effects written by Roman Teisseyre and published by Springer Science & Business Media. This book was released on 2006-07-01 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This breakthrough book is the first to examine the rotational effects in earthquakes, a revolutionary concept in seismology. Existing models do no yet explain the significant rotational and twisting motions that occur during an earthquake and cause the failure of structures. The rotation and twist effects are investigated and described, and their consequences for designing tall buildings and other important structures are presented. This book will change the way the world views earthquakes.

Routine Data Processing in Earthquake Seismology

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Publisher : Springer Science & Business Media
ISBN 13 : 9048186978
Total Pages : 350 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Routine Data Processing in Earthquake Seismology by : Jens Havskov

Download or read book Routine Data Processing in Earthquake Seismology written by Jens Havskov and published by Springer Science & Business Media. This book was released on 2010-06-16 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this book is to get a practical understanding of the most common processing techniques in earthquake seismology. The book deals with manual methods and computer assisted methods. Each topic will be introduced with the basic theory followed by practical examples and exercises. There are manual exercises entirely based on the printed material of the book, as well as computer exercises based on public domain software. Most exercises are computer based. The software used, as well as all test data are available from http://extras.springer.com. This book is intended for everyone processing earthquake data, both in the observatory routine and in connection with research. Using the exercises, the book can also be used as a basis for university courses in earthquake processing. Since the main emphasis is on processing, the theory will only be dealt with to the extent needed to understand the processing steps, however references will be given to where more extensive explanations can be found. Includes: • Exercises • Test data • Public domain software (SEISAN) available from http://extras.springer.com