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Ground Based Thermal Remote Sensing Of Eruption Dynamics At Santiaguito Lava Dome Complex Guatemala
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Book Synopsis Ground-based Thermal Remote Sensing of Eruption Dynamics at Santiaguito Lava Dome Complex, Guatemala by : Steve Sahetapy-Engel
Download or read book Ground-based Thermal Remote Sensing of Eruption Dynamics at Santiaguito Lava Dome Complex, Guatemala written by Steve Sahetapy-Engel and published by . This book was released on 2007 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Santiaguito volcanic dome complex, Guatemala by : Jeannie A. J. Scott
Download or read book The Santiaguito volcanic dome complex, Guatemala written by Jeannie A. J. Scott and published by Jeannie Scott. This book was released on 2013 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Origin and evolution of the Santiaguito volcanic dome complex, Guatemala by : Jeannie A.J. Scott
Download or read book Origin and evolution of the Santiaguito volcanic dome complex, Guatemala written by Jeannie A.J. Scott and published by Jeannie Scott. This book was released on with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Remote Sensing of Active Volcanoes by : Andrew Harris
Download or read book Thermal Remote Sensing of Active Volcanoes written by Andrew Harris and published by Cambridge University Press. This book was released on 2013-04-18 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Encapsulating over one hundred years of research developments, this book is a comprehensive manual for measurements of Earth surface temperatures and heat fluxes, enabling better detection and measurement of volcanic activity. With a particular focus on volcanic hot spots, the book explores methodologies and principles used with satellite-, radiometer- and thermal-camera data. It presents traditional applications using satellite and ground based sensors as well as modern applications that have evolved for use with hand-held thermal cameras and is fully illustrated with case studies, databases and worked examples. Chapter topics include techniques for thermal mixture modelling and heat flux derivation, and methods for data collection, mapping and time-series generation. Appendices and online supplements present additional specific notes on areas of sensor application and data processing, supported by an extensive reference list. This book is an invaluable resource for academic researchers and graduate students in thermal remote sensing, volcanology, geophysics and planetary studies.
Book Synopsis Remote Sensing of Volcanic Processes and Risk by : Francesca Cigna
Download or read book Remote Sensing of Volcanic Processes and Risk written by Francesca Cigna and published by MDPI. This book was released on 2021-03-17 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote sensing data and methods are increasingly being implemented in assessments of volcanic processes and risk. This happens thanks to their capability to provide a spectrum of observation and measurement opportunities to accurately sense the dynamics, magnitude, frequency, and impacts of volcanic activity. This book includes research papers on the use of satellite, aerial, and ground-based remote sensing to detect thermal features and anomalies, investigate lava and pyroclastic flows, predict the flow path of lahars, measure gas emissions and plumes, and estimate ground deformation. The multi-disciplinary character of the approaches employed for volcano monitoring and the combination of a variety of sensor types, platforms, and methods that come out from the papers testify to the current scientific and technology trends toward multi-data and multi-sensor monitoring solutions. The added value of the papers lies in the demonstration of how remote sensing can improve our knowledge of volcanoes that pose a threat to local communities; back-analysis and critical revision of recent volcanic eruptions and unrest periods; and improvement of modeling and prediction methods. Therefore, the selected case studies also demonstrate the societal impact that this scientific discipline can potentially have on volcanic hazard and risk management.
Book Synopsis Origin and Evolution of the Santiaguito Lava Dome Complex, Guatemala by : Jeannie A. J. Scott
Download or read book Origin and Evolution of the Santiaguito Lava Dome Complex, Guatemala written by Jeannie A. J. Scott and published by . This book was released on 2013 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field and Numerical Investigations of Lava Dome Hydrothermal Systems and Their Effects on Dome Stability by : Jessica Lynne Ball
Download or read book Field and Numerical Investigations of Lava Dome Hydrothermal Systems and Their Effects on Dome Stability written by Jessica Lynne Ball and published by . This book was released on 2013 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study investigates the potential for hydrothermal alteration and circulation in lava domes using combined analytical, remote sensing and numerical modeling approaches. This has been accomplished in three parts: 1) A comprehensive field, geochemical and remote sensing investigation was undertaken of the hydrothermal system in the Santiaguito lava dome complex in Guatemala. The Santiaguito domes were found to contain mainly hydrous silica alteration, which is unlikely to weaken dome rock, but the summit of Santa Maria was found to contain pervasive argillic alteration (clay minerals), which do pose more of a collapse-related hazard. These results were confirmed by hot spring geochemistry which indicated that water in the domes was responsible for some rock dissolution but had a residence time too short to allow for secondary mineralization. 2) A finite element numerical modeling approach was developed which was designed to simulate the percolation of meteoric water in two dome geometries (crater-confined and `perched'), and the results were compared to the surface expression of hydrothermal systems on existing lava domes. In both cases, we concluded that simulated domes which lacked a high-temperature (magmatic) heat source could not develop a convecting hydrothermal system and were dominated by gravitational water flow. In these low-temperature simulations, warm springs (warmer high fluid fluxes) were produced at the base of the dome talus and cool springs were dispersed lower down the slope/substrate; fumaroles (high vapor fluxes) were confined to the dome summits. Comparison with existing dome cross sections indicates that the simulations were accurate in predicting fumarole locations and somewhat accurate at predicting spring locations, suggesting that springs may be subject to permeability contrasts created by more complicated structural features than were simulated in this study. 3) The results of the numerical modeling were used to calculate alteration potential in the simulated domes, indicating the most likely areas where alteration processes might either reduce the strength of a dome or reduce permeability that could contribute to internal pressurization. Rock alteration potential in low-temperature lava domes was found to be controlled by material permeability and the presence or absence of a sustained heat source driving hydrothermal circulation. High RAI values were preserved longer in low-permeability domes, but were more strongly developed in domes with higher permeabilities. Potential for mineral dissolution was highest at the base of the dome core, while the potential for mineral precipitation is highest at the dome core-talus interface. If precipitated minerals are impermeable, the dome core/talus interface would be a likely location for accumulation of gases and initiation of gas-pressurization-related collapse; if alteration is depositing weak (i.e. clay) minerals in this area, the dome core/talus interface might be a candidate for collapses occurring as the result of alteration processes. The results of this study are all geared toward answering two broad questions: Where are hydrothermal alteration processes likely to occur or be focused within lava domes? and What effect could these processes have on dome stability? In the specific case of the Santiaguito dome complex, the combination of a quickly-recharged, low-temperature hydrothermal system in the inactive domes actually indicated a low possibility of collapse related to alteration minerals. This result was reinforced by the results of the numerical modeling, which indicated that domes are unlikely to develop sustained hydrothermal convection without the presence of a significant (magmatic) heat source and - in the case of Santiaguito - are likely to produce more hydrous silica alteration minerals when they also lack a source of acidic gases. Models of alteration potential do detail, however, that both shallow and deep dome collapses are still a possibility with a low-temperature hydrothermal system, given either a) a source of acidic gases to drive the formation of clay minerals (which are most likely to be deposited at the core/talus interface of a dome, or b) enough deposition of silica minerals in pore spaces to lower permeability in dome rock and promote internal gas pressurization. The results of this study are not limited to lava domes, as the volcanic edifices on which they rest are composed of the same materials that comprise lava domes and are therefore susceptible to the same hydrothermal processes. Further simulations of both lava domes and their associated edifices, including mineral species models, could help constrain under what conditions a lava dome or volcano is likely to develop areas of weak mineral precipitates (such as clay minerals) which could provide sites for collapse, or develop an impermeable cap of silicate minerals which could trap rising vapor and contribute to the pressurization of the edifice in question (which can in turn lead to collapse).
Book Synopsis Seismicity in Volcanic Areas by : Derek Keir
Download or read book Seismicity in Volcanic Areas written by Derek Keir and published by Frontiers Media SA. This book was released on 2022-11-04 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309454158 Total Pages :135 pages Book Rating :4.3/5 (94 download)
Book Synopsis Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing by : National Academies of Sciences, Engineering, and Medicine
Download or read book Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-07-24 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanic eruptions are common, with more than 50 volcanic eruptions in the United States alone in the past 31 years. These eruptions can have devastating economic and social consequences, even at great distances from the volcano. Fortunately many eruptions are preceded by unrest that can be detected using ground, airborne, and spaceborne instruments. Data from these instruments, combined with basic understanding of how volcanoes work, form the basis for forecasting eruptionsâ€"where, when, how big, how long, and the consequences. Accurate forecasts of the likelihood and magnitude of an eruption in a specified timeframe are rooted in a scientific understanding of the processes that govern the storage, ascent, and eruption of magma. Yet our understanding of volcanic systems is incomplete and biased by the limited number of volcanoes and eruption styles observed with advanced instrumentation. Volcanic Eruptions and Their Repose, Unrest, Precursors, and Timing identifies key science questions, research and observation priorities, and approaches for building a volcano science community capable of tackling them. This report presents goals for making major advances in volcano science.
Book Synopsis The Geology of the Santiaguito Volcanic Dome, Guatemala by : William Ingersoll Rose
Download or read book The Geology of the Santiaguito Volcanic Dome, Guatemala written by William Ingersoll Rose and published by . This book was released on 1970 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Degassing Processes at Santiaguito Lava Dome, Guatemala by : Alastair Simon Peter Holland
Download or read book Degassing Processes at Santiaguito Lava Dome, Guatemala written by Alastair Simon Peter Holland and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on using spectroscopic gas emissions data to understand degassing processes occurring during low-intensity explosive activity at Santiaguito lava dome, Guatemala. It results in a refinement of the ultra violet camera spectroscopic technique; the proposal of a trigger mechanism for low-intensity explosions during lava dome growth; and the first successful modelling of an unsteady explosion plume. The ultra violet camera provides high spatial and temporal resolution spectroscopic measurements of volcanic 802, However, data collection is difficult under the non-ideal conditions typically encountered at silicic volcanoes. A new processing protocol is developed that corrects for plume-instrument distance and in-plume ash/aerosols, permitting data collection at 8antiaguito. The resulting dataset is used to constrain the trigger mechanism of 8antiaguito explosions. The lava dome is found to be continuously permeable, whilst explosions contain as little as 150 kg 802 - characteristics incompatible with gas pressurisation beneath an impermeable plug. Rather, the data support a model in which transient explosive degassing pathways are generated at the conduit margins through shear-driven fracturing. Rheological modelling shows that this process is likely to occur during even extremely slow extrusion of high-crystallinity intermediate magma, on account of the very high viscosity of such magma. This model is further supported by the discovery of tuffisite veins in Santiaguito dacite. Santiaguito explosions form short-duration plumes that may be used as observable proxies for larger Vulcanian plumes. Ultra violet camera data have been used to define time-varying boundary conditions for a cutting-edge unsteady plume model. This represents a first attempt to compare field observations of a volcanic plume with model predictions using field-derived boundary conditions. The resulting simulation closely recreates the observed plume ascent, in contrast to approximations made using steady and instantaneous plume models. This explicitly shows that unsteady effects are critical to understanding Vulcanian plume dynamics.
Book Synopsis Remote Sensing of Volcanic Processes and Risk by : Francesca Cigna
Download or read book Remote Sensing of Volcanic Processes and Risk written by Francesca Cigna and published by . This book was released on 2021 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote sensing data and methods are increasingly being implemented in assessments of volcanic processes and risk. This happens thanks to their capability to provide a spectrum of observation and measurement opportunities to accurately sense the dynamics, magnitude, frequency, and impacts of volcanic activity. This book includes research papers on the use of satellite, aerial, and ground-based remote sensing to detect thermal features and anomalies, investigate lava and pyroclastic flows, predict the flow path of lahars, measure gas emissions and plumes, and estimate ground deformation. The multi-disciplinary character of the approaches employed for volcano monitoring and the combination of a variety of sensor types, platforms, and methods that come out from the papers testify to the current scientific and technology trends toward multi-data and multi-sensor monitoring solutions. The added value of the papers lies in the demonstration of how remote sensing can improve our knowledge of volcanoes that pose a threat to local communities; back-analysis and critical revision of recent volcanic eruptions and unrest periods; and improvement of modeling and prediction methods. Therefore, the selected case studies also demonstrate the societal impact that this scientific discipline can potentially have on volcanic hazard and risk management.
Book Synopsis Remote Sensing of Volcanoes and Volcanic Processes by : D.M. Pyle
Download or read book Remote Sensing of Volcanoes and Volcanic Processes written by D.M. Pyle and published by Geological Society of London. This book was released on 2014-01-06 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on how advances in both remote sensing and modelling can be brought together to improve our understanding of the behaviour of active volcanoes. It includes review papers, papers reporting technical advances and case studies showing how the integration of remote-sensing observations with models can be put to good use.
Book Synopsis Volcanism and Global Environmental Change by : Anja Schmidt
Download or read book Volcanism and Global Environmental Change written by Anja Schmidt and published by Cambridge University Press. This book was released on 2015-01-08 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multidisciplinary volume describing the effects of volcanism on the environment, past and present, for researchers and advanced students.
Book Synopsis Lava Flows and Domes by : Jonathan H. Fink
Download or read book Lava Flows and Domes written by Jonathan H. Fink and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers is based on a symposium held in 1987 at the Interna tional Union of Geology and Geodesy Congress in Vancouver, British Colum bia. The Symposium was planned as a follow-up to a session at the 1984 Geo logical Society of America Annual Meeting in Reno, Nevada, which dealt with the emplacement of silicic lava domes. In both cases, emphasis was placed on the physical and mechanical rather than chemical aspects of lava flow. The IUGG Symposium consisted of two lecture sessions, a poster session, and two discussion periods, and had 22 participants. The contributions to this volume are all based on papers presented in the various parts of the Sym posium. The motivation for studying lava flow mechanics is both practical and scientific. Scientists and government agencies seek to more effectively predict the hazards associated with active lavas. Recovering mineral resources found in lava flows and domes also requires an understanding of their emplacement. From a more theoretical standpoint, petrologists view lava studies as a way to directly observe the rheologic consequences of mixing crystals, bubbles, and solid blocks of country rock with silicate liquids. This information can then be used to constrain processes occurring in the concealed conduits, dikes, and chambers that feed flows and domes on the surface.
Book Synopsis Encyclopedia of Volcanoes by : Haraldur Sigurdsson
Download or read book Encyclopedia of Volcanoes written by Haraldur Sigurdsson and published by Academic Press. This book was released on 1999-10-23 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volcanoes are unquestionably one of the most spectacular and awe-inspiring features of the physical world. Our paradoxical fascination with them stems from their majestic beauty and powerful, if sometimes deadly, destructiveness. Notwithstanding the tremendous advances in volcanology since ancient times, some of the mystery surrounding volcanic eruptions remains today. The Encyclopedia of Volcanoes summarizes our present knowledge of volcanoes. Through its thematic organization around the melting of the earth, it provides a comprehensive source of information on the multidisciplinary influences of volcanic eruptions--both the destructive as well as the beneficial aspects.The majority of the chapters focus on the geoscience-related aspects of volcanism (radioactive heat source, melting rock, ascent of magma, surface phenomena associated with exiting magma, extraterrestrial volcanism, etc.). In addition, complementary chapters discuss the multidisciplinary aspects of volcanism; these include the history of volcanology, geothermal energy resources, interaction with the oceans and atmosphere, health aspects of volcanism, mitigation of volcanic disasters, post-eruption ecology, and the impact of eruptions on organismal biodiversity. In addition to its appeal to educators, students, and professional and amateur scientists, the Encyclopedia of Volcanoes functions as an important information resource for administrators and officials responsible for developing and implementing volcanic hazard mitigation around the world. * The first and only reference work to cover all aspects of volcanology* More than 80 separate peer-reviewed articles--all original contributions by leading authors from major institutions of science around the world, commissioned for this work* An integrated transition from the volcanic process through hazards, risk, and societal impacts, with an emphasis on how volcanoes have influenced and shaped society* Convenient single-volume format with topics arranged thematically--articles provide coverage of nine different aspects of volcanology* Each entry in the Encyclopedia begins with an outline of the article content and a concise definition of the subject of the article* 3,000 Glossary entries explain key terms* Further Reading lists appear at the end of each entry* Extensive cross-referencing system links related articles* Sixteen pages of color will convey the science and excitement of this often violent phenomena * Large 8 1/2" x 11" page size, easy-to-read double-column format