Download or read book Periglacial Preconditioning of Debris Flows in the Southern Alps New Zealand written by Katrin Sattler and published by Springer. This book was released on 2016-06-11 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis represents one of the few studies so far that systematically analyses environmental conditions within debris flow source areas to determine their relative importance for debris flow development. Environmental site conditions, such as slope gradient and debris availability, influence the spatial and temporal distribution of debris flows in high-alpine areas. However, current understanding of these preconditioning controls is mostly qualitative and inadequate for debris-flow hazard assessments and climate change impact studies. The author's research investigates the role of frost weathering and permafrost in the occurrence of debris flows in the Southern Alps of New Zealand. Analyses are based on an extensive debris flow inventory, documenting debris flow occurrence and activity over the last 60 years in selected catchments. Debris flow activity is compared to frost-weathering intensity estimates from two models, allowing the practical comparison of two competing frost-weathering hypotheses currently discussed in literature. Information on permafrost occurrence is based on a new distributed permafrost estimate for the Southern Alps, derived from climatic conditions at active rock glacier sites. This pioneering thesis provides empirical evidence that frost weathering promotes debris-flow formation. It further highlights the potential and limitations of regional-scale studies for advancing our understanding of debris-flow preconditioning factors.
Download or read book Periglacial Preconditioning of Debris Flows in the Southern Alps New Zealand written by Katrin Sattler and published by . This book was released on 2014 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Debris flow Science and Practice written by Matthias Jakob and published by Springer Nature. This book was released on 2024 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: This book provides a summary of the state of the art of all facets of debris-flow science and practice and is designed to be a comprehensive technical reference for practitioners and a state-of-the-art research overview for scientists. It is richly illustrated with equations, graphs, photos, and tables. The book allows students, practitioners, and regulators to get a sense of the current state of the art in this science. Currently, there are 2 to 3 papers published every week on some aspects of debris-flow science. This creates a bewildering amount of literature that cannot be captured by a single individual. This book provides a comprehensive overview of all facets to date, including initial hazard assessments, detailed quantitative risk assessments, debris-flow warning systems, debris-flow mitigation structure designs, and failures of mitigation works, as well as new topics such as climate change effects on debris flows
Download or read book Rock Avalanches written by O. Adrian Pfiffner and published by Frontiers Media SA. This book was released on 2021-04-07 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Martian Gullies and their Earth Analogues written by S.J. Conway and published by Geological Society of London. This book was released on 2019-01-21 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gullies on Mars resemble terrestrial gullies involved in the transport of abundant material down steep slopes by liquid water. However, liquid water should not be stable at the Martian surface. The articles in this volume present the two main opposing theories for Martian gully formation: climate-driven melting of surficial water-ice deposits and seasonal dry-ice sublimation. The evidence presented ranges from remote-sensing observations, to experimental simulations, to comparison with Earth analogues. The opposing hypotheses imply either that Mars has been unusually wet in the last few million years or that it has remained a cold dry desert – both with profound implications for understanding the water budget of Mars and its habitability. The debate questions the limits of remote-sensing data and how we interpret active processes on extra-terrestrial planetary surfaces, even beyond those on Mars, as summarized by the review paper at the beginning of the book.
Download or read book Recent Periglacial Debris Flows from Mount Rainier Washington written by Elizabeth Anne Copeland and published by . This book was released on 2010 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Debris flow initiation is controlled by a complex interaction of geology, geomorphology, climate, and weather. In the Cascade Range of Pacific Northwest and mountainous areas globally, patterns of temperature and precipitation are being altered by climate change, which may in turn impact debris flow initiation. Temperature has increased and patterns of precipitation have changed, potentially impacting the timing, geography, and triggering mechanisms of debris flows. Glacier retreat since the end of the Little Ice Age has exposed volumes of unstable sediment on steep slopes prone to debris flow initiation. Earlier spring snowmelt extends the snow-free window when rainstorms may mobilize sediment, resulting in debris flows. To ascertain the presence of a climate change signal we examined the timing, geography, and initiation mechanisms of recent (2001 to 2006) non-volcanic debris flows from Mount Rainier, Washington, the highest volcano in the Cascade Range with the largest ice-volume in the conterminous United States. Debris flows damage infrastructure, requiring costly repairs. Debris flows also deposit volumes of sediment in streams, potentially exacerbating future flood hazards. To characterize recent debris flows, field reconnaissance was conducted summer 2008 along suspected debris flow paths from initiation to deposition. Results from summer fieldwork were used in conjunction with analysis of aerial photography, Light Detection and Ranging (LiDAR), and other data to determine characteristics of debris flow initiation sites, such as elevation, slope, orientation, upslope contributing area, and proximity to glaciers. Recent debris flow initiation sites were also examined in reference to glacier characteristics, such as elevation of glacier termini, glacier retreat, orientation, area, and volume, for the years 1913, 1971, and 1994 from past work by Nylen (2004). Characterization of debris flow initiation sites and definition of the locations of longitudinal transitions in debris flow behavior allows estimation of future debris flow hazards also allows inferences to be drawn regarding initiation mechanisms to be inferred and suggests a trajectory for changing debris flow hazards due to climate change. Debris flows at Mt. Rainier occur in late summer through fall and recent events were no exception, occurring from August through November. A total of twelve debris flows occurred in six stream channels during the period of 2001 to 2006. Three channels not previously known to have experienced debris flows, two south-facing and one north-facing, were impacted. Debris flows tracks led up to glacier meltwater fed, steep-walled channels or gullies in unvegetated, unconsolidated Quaternary-age material immediately downslope of glacier margins. Debris flows initiated at an average elevation of 2181 m and an average channel gradient of 39°. While glaciers appear to play a key role in debris flow initiation, simple glacier metrics could not be used to distinguish glaciers near debris flow heads from those without proximal debris flows heads. All but one of the twelve debris flows initiated during rainfall. The single debris flow that occurred during dry-weather is described by Vallance et al. (2002). Rainfall induced debris flows in 2003, 2005, and 2006 were not associated with landslide scarps, rockfalls, or other indications of large slope failures. Rather, debris flows initiated in steep-walled gullies fed by glacier meltwater that were visible on aerial photography prior to the first known debris flow initiation in a particular channel. The steep flanks of Mt. Rainier contain many similar gullies that have not previously been associated with debris flows, but debris flow producing gullies are at higher elevations than gullies not associated with debris flows. The small population of recent debris flows and incomplete historic record of debris flows for the periods 1926 to 1985 and 1993 to 2001 limits analysis of changes in debris flow timing, geography, or triggering mechanism. The magnitude of recent events may have initially appeared greater than historic events as the 2005 and 2006 storms are the only ones known to have produced multiple debris flows in the recorded history of Mt. Rainier National Park. Yet much of the damage initially attributed to debris flows was due to widespread, severe flooding. Ongoing, detailed record keeping and possibly reconstruction of past events through paired geomorphic reconnaissance and dendrochronology is needed before conclusions regarding the impacts of climate change on debris flow initiation can be reached.
Download or read book Debris Flows written by Thomas C. Pierson and published by . This book was released on 1980* with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snow and Ice Related Hazards Risks and Disasters written by and published by Academic Press. This book was released on 2014-10-27 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: Snow and Ice-Related Hazards, Risks, and Disasters provides you with the latest scientific developments in glacier surges and melting, ice shelf collapses, paleo-climate reconstruction, sea level rise, climate change implications, causality, impacts, preparedness, and mitigation. It takes a geo-scientific approach to the topic while also covering current thinking about directly related social scientific issues that can adversely affect ecosystems and global economies. Puts the contributions from expert oceanographers, geologists, geophysicists, environmental scientists, and climatologists selected by a world-renowned editorial board in your hands Presents the latest research on causality, glacial surges, ice-shelf collapses, sea level rise, climate change implications, and more Numerous tables, maps, diagrams, illustrations and photographs of hazardous processes will be included Features new insights into the implications of climate change on increased melting, collapsing, flooding, methane emissions, and sea level rise
Download or read book The High Mountain Cryosphere written by Christian Huggel and published by Cambridge University Press. This book was released on 2015-08-07 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a definitive overview of the global drivers of high-mountain cryosphere change and their implications for people across high-mountain regions.
Download or read book CRREL Bibliography written by and published by . This book was released on 1999 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape and Quaternary Environmental Change in New Zealand written by James Shulmeister and published by Springer. This book was released on 2016-12-16 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together an overview of the recent geological history, active earth and biological processes and human settlement of New Zealand. Topics covered include the very active neotectonic and volcanic setting. Mountain geomorphic processes are examined and new ideas about landsliding are highlighted. The exceptional sedimentary archives of the Whanganui Basin are also presented. As one of two land masses that extend into the southern mid-latitudes, New Zealand is ideally located to investigate changes in Southern Ocean climate. Related to this, mountain glaciation in New Zealand is a focus in global climate change debates. New Zealand also has a unique biota due to its long isolation and is the last major land mass to be settled by people. Advances in DNA technologies have revolutionised our understanding of the histories and processes involved. The book provides a comprehensive review of existing work and highlights new ideas and major debates across all these fields.
Download or read book Fundamentals of Geomorphology written by Richard John Huggett and published by Routledge. This book was released on 2011-03-15 with total page 909 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensively revised, restructured, and updated edition continues to present an engaging and comprehensive introduction to the subject, exploring the world’s landforms from a broad systems perspective. It covers the basics of Earth surface forms and processes, while reflecting on the latest developments in the field. Fundamentals of Geomorphology begins with a consideration of the nature of geomorphology, process and form, history, and geomorphic systems, and moves on to discuss: structure: structural landforms associated with plate tectonics and those associated with volcanoes, impact craters, and folds, faults, and joints process and form: landforms resulting from, or influenced by, the exogenic agencies of weathering, running water, flowing ice and meltwater, ground ice and frost, the wind, and the sea; landforms developed on limestone; and landscape evolution, a discussion of ancient landforms, including palaeosurfaces, stagnant landscape features, and evolutionary aspects of landscape change. This third edition has been fully updated to include a clearer initial explanation of the nature of geomorphology, of land surface process and form, and of land-surface change over different timescales. The text has been restructured to incorporate information on geomorphic materials and processes at more suitable points in the book. Finally, historical geomorphology has been integrated throughout the text to reflect the importance of history in all aspects of geomorphology. Fundamentals of Geomorphology provides a stimulating and innovative perspective on the key topics and debates within the field of geomorphology. Written in an accessible and lively manner, it includes guides to further reading, chapter summaries, and an extensive glossary of key terms. The book is also illustrated throughout with over 200 informative diagrams and attractive photographs, all in colour.
Download or read book Landslide Hazards Risks and Disasters written by Tim Davies and published by Elsevier. This book was released on 2021-10-17 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landslide Hazards, Risks and Disasters Second Edition makes a broad but detailed examination of major aspects of mass movements and their consequences, and provides knowledge to form the basis for more complete and accurate monitoring, prediction, preparedness and reduction of the impacts of landslides on society. The frequency and intensity of landslide hazards and disasters has consistently increased over the past century, and this trend will continue as society increasingly utilises steep landscapes. Landslides and related phenomena can be triggered by other hazard and disaster processes – such as earthquakes, tsunamis, volcanic eruptions and wildfires – and they can also cause other hazards and disasters, making them a complex multi-disciplinary challenge. This new edition of Landslide Hazards, Risks and Disasters is updated and includes new chapters, covering additional topics including rockfalls, landslide interactions and impacts and geomorphic perspectives. Knowledge, understanding and the ability to model landslide processes are becoming increasingly important challenges for society extends its occupation of increasingly hilly and mountainous terrain, making this book a key resource for educators, researchers and disaster managers in geophysics, geology and environmental science. Provides an interdisciplinary perspective on the geological, seismological, physical, environmental and social impacts of landslides Presents the latest research on causality, impacts and landslide preparedness and mitigation. Includes numerous tables, maps, diagrams, illustrations, photographs and video captures of hazardous processes Discusses steps for planning for and responding to landslide hazards, risks and disasters
Download or read book Debris flow Hazards and Related Phenomena written by Matthias Jakob and published by Springer Science & Business Media. This book was released on 2007-12-26 with total page 795 pages. Available in PDF, EPUB and Kindle. Book excerpt: With climate change and deforestation, debris flows and debris avalanches have become the most significant landslide hazards in many countries. In recent years there have been numerous debris flow avalanches in Southern Europe, South America and the Indian Subcontinent, resulting in major catastrophes and large loss of life. This is therefore a major high-profile problem for the world's governments and for the engineers and scientists concerned. Matthias Jakob and Oldrich Hungr are ideally suited to edit this book. Matthias Jakob has worked on debris flow for over a decade and has had numerous papers published on the topic, as well as working as a consultant on debris flow for municipal and provincial governments. Oldrich Hungr has worked on site investigations on debris flow, avalanches and rockfall, with emphasis on slope stability analysis and evaluation of risks to roads in built-up areas. He has also developed mathematical models for landslide dynamic analysis. They have invited world-renowned experts to joint them in this book.
Download or read book The Vegetation of Antarctica through Geological Time written by David J. Cantrill and published by Cambridge University Press. This book was released on 2012-11-22 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fossil history of plant life in Antarctica is central to our understanding of the evolution of vegetation through geological time and also plays a key role in reconstructing past configurations of the continents and associated climatic conditions. This book provides the only detailed overview of the development of Antarctic vegetation from the Devonian period to the present day, presenting Earth scientists with valuable insights into the break up of the ancient supercontinent of Gondwana. Details of specific floras and ecosystems are provided within the context of changing geological, geographical and environmental conditions, alongside comparisons with contemporaneous and modern ecosystems. The authors demonstrate how palaeobotany contributes to our understanding of the paleoenvironmental changes in the southern hemisphere during this period of Earth history. The book is a complete and up-to-date reference for researchers and students in Antarctic paleobotany and terrestrial paleoecology.
Download or read book Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation written by Intergovernmental Panel on Climate Change and published by Cambridge University Press. This book was released on 2012-05-28 with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extreme weather and climate events, interacting with exposed and vulnerable human and natural systems, can lead to disasters. This Special Report explores the social as well as physical dimensions of weather- and climate-related disasters, considering opportunities for managing risks at local to international scales. SREX was approved and accepted by the Intergovernmental Panel on Climate Change (IPCC) on 18 November 2011 in Kampala, Uganda.
Download or read book Geographical Abstracts Index written by and published by . This book was released on 1986 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
