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This book comprehensively presents the geography of landforms linked to periglacial processes across Europe. The landscape of the European cold climate regions, both at high latitudes and in mountainous environments, represent the lingering, minimal expression of the glaciers. In addition, periglacial elements can be found in temperate regions, where temperatures no longer favor periglacial processes, so landforms are therefore inherited from previous cold phases. The book is divided into five parts: an introductory section on climate variability responsible for periglacial dynamics across Europe; a second part including 3 blocks on periglacial landforms in southern, central and northern Europe; and a final chapter providing a more general perspective on the impact of periglacial processes on the landscape of Europe. The book offers a valuable reference guide for scientists from all disciplines interested in cold climate processes, as well as readers outside academia (territorial managers, environmentalists, mountaineers, politicians, engineers, etc.). .
Periglacial processes --- Paraglacial processes --- Geomorphology --- Glacial landforms
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Second edition of Periglacial processes and environments, 1973. A comprehensive overview of periglacial processes and their effects, past and present.
Frozen ground --- Erosion --- Sols gelés --- Periglacial processes --- Paraglacial processes --- Geomorphology --- Glacial landforms
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Cold regions --- Frozen ground --- Frozen soil --- Cryosphere --- Soils --- Cryopedology --- Periglacial processes. --- Periglacial processes --- Paraglacial processes --- Geomorphology --- Glacial landforms
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Many research problems in cryospheric science, such as global warming-induced permafrost degradation, require information about the subsurface, which can be imaged using geophysical methods. This book is a practical guide to the application of geophysical techniques in mountainous and polar terrain, where the harsh environment and nature of the subsurface pose particular challenges. It starts with an introduction to the main geophysical methods and then demonstrates their application in periglacial environments through various case studies - written by a team of international experts. The final part of the book presents a series of reference tables with typical values of geophysical parameters for periglacial environments. This handbook is a valuable resource for glaciologists, geomorphologists and geologists requiring an introduction to geophysical techniques, as well as for geophysicists lacking experience of planning and conducting field surveys in cold regions.
Geophysics --- Periglacial processes --- Géophysique --- Périglaciaire --- Data processing --- Informatique --- Periglacial processes. --- Paraglacial processes --- Geomorphology --- Glacial landforms --- Data processing.
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Glacial landforms --- Géomorphologie glaciaire --- Congresses --- Congrès --- -Glaciated terrain --- Landforms --- Periglacial processes --- -Congresses --- Géomorphologie glaciaire --- Congrès --- Paraglacial processes --- Geomorphology --- Glaciated terrain
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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.
Earth sciences. --- Natural disasters. --- Geomorphology. --- Earth Sciences. --- Natural Hazards. --- Debris avalanches. --- Debris avalanches --- Periglacial processes --- Paraglacial processes --- Avalanches, Debris --- Debris flows --- Flows, Debris --- Geomorphology --- Glacial landforms --- Landslides --- Geology. --- Geognosy --- Geoscience --- Earth sciences --- Natural history --- Geomorphic geology --- Physiography --- Physical geography --- Landforms --- Natural calamities --- Disasters
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