Download or read book Permafrost Investigations in British Columbia and Yukon Territory written by Roger James Evan Brown (Géographe, Canada) and published by . This book was released on 1967 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost Investigations in British Columbia and Yukon Territory written by Roger James Evan Brown and published by . This book was released on 1967 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Historic Change in Permafrost Distribution in Northern British Columbia and Southern Yukon Territory Canada written by Megan James and published by . This book was released on 2010 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost North American Contribution to The Second International Conference written by and published by National Academies. This book was released on 1973-01-01 with total page 808 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in Canada written by Roger J.E. Brown and published by University of Toronto Press. This book was released on 1970-12-15 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permafrost is the thermal condition of the earth’s crust when its temperature has been below 32°F continuously for a number of years. Half of Canada’s land surface lies in the permafrost region—either in the continuous zone where the ground is frozen to a depth of hundreds of feet, or in the discontinuous zone where permafrost is thinner, and there are areas of unfrozen ground. The existence of permafrost causes problems for the development of the northern regions of all countries extending into the Arctic. Mining operations are hindered by frozen ore which resists blasting and is difficult to thaw. Agriculture is restricted by the presence of permafrost near the ground surface which limits the soil available for plant growth. Engineering structures are also affected by the low temperatures. Ice layers give soil a rock-like structure with high strength. However heat transmitted by buildings often causes the ice to melt, and the resulting slurry is unable to support the structure. Many settlements in northern Canada have examples of structural damage or failure caused by permafrost. In the construction and maintenance of railways, buildings, water and sewage lines, dams, roads, bridges, and airfields, normal techniques must often be modified at additional cost because of permafrost. For the last twenty-five years scientific investigations and engineering projects have increased steadily in Canada’s permafrost region, and it is now technically possible to build any structure or conduct any activity on the worst soils and under permafrost conditions. This comprehensive analysis of permafrost—its origin, definition, and occurrence, and the effect it has on industry and agriculture—will be invaluable to the growing number of people working in the north and to those interested in its development.
Download or read book Periglacial Geomorphology written by Athol D. Abrahams and published by Routledge. This book was released on 2020-05-10 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, first published in 1992, contains the proceedings of the 22nd Binghamton Geomorphology Symposium, and highlights the quantity and diversity of periglacial geomorphic research being undertaken in Arctic and alpine environments. The articles explore a variety of geomorphic processes and examine the potential impacts of global change on the nature and extent of permafrost and seasonal ice phenomena.
Download or read book Final Environmental Impact Statement for the Alaska Natural Gas Transportation Systems General economic analysis Comparison of systems written by United States. Federal Power Commission and published by . This book was released on 1976 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Open File 1448 written by and published by Natural Resources Canada. This book was released on with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Report of Permafrost Investigations in the Dunbar Area Alaska written by Troy Lewis Péwé and published by . This book was released on 1949 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Validation of the Basal Temperature of Snow BTS Method to Map Permafrost in Complex Mountainous Terrain Ruby Range Yukon Territory and Haines Summit British Columbia written by Philip P. Bonnaventure and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is the second attempt to use the Basal Temperature of Snow (BTS) method to map permafrost in mountainous regions of northwestern Canada. It differs from the first study which took place in Wolf Creek in terms of (1) the methodology used to evaluate BTS, (2) the strategy used to avoid spatial autocorrelation in residuals, and (3) the climatic regions investigated. Two study areas, part of the Ruby Range (61° 12' N, 138° 19' W) and Haines Summit (59° 37' N, 136° 27' W) were selected for BTS sampling based on differing climatic conditions and previous knowledge of permafrost elevations from active rock glaciers. A total of 30 BTS measurements were made in the Ruby Range in the winter of 2006 and a total of 77 BTS values were obtained in the Haines Summit area during 2005 and 2006. From these results, modeled BTS surfaces were created using elevation and potential incoming solar radiation as independent variables in a multiple linear regression. At Haines Summit, potential incoming solar radiation was not significant in the model and thus was dropped. The surface of modeled BTS was then combined with a physical validation of permafrost presence completed during the late-summer of 2005 in a logistic regression. The modeled results produced permafrost probability maps for both study areas. Based on modeled results, permafrost underlies an estimated 282 km2 or 66% of the Ruby Range study area and 23--236 km 2 or 43--44% of the Haines Summit study area. An attempt was made to use the linear model derived in the Ruby Range at Haines Summit in order to examine the possibility of expanding predictions into new areas. Although the results produced similar total amounts of permafrost, the spatial distribution differed: permafrost probabilities were reduced at high elevations while lower elevation sites exhibited increased probabilities. The results of the model transfer illustrate the importance of the pit data in determining the total amount of permafrost, while knowledge of BTS ranges contributes to the spatial distribution of permafrost. With further study it is likely that generic models can be derived for areas of similar climate.
Download or read book Principles and Dynamics of the Critical Zone written by and published by Elsevier. This book was released on 2015-06-18 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and Dynamics of the Critical Zone is an invaluable resource for undergraduate and graduate courses and an essential tool for researchers developing cutting-edge proposals. It provides a process-based description of the Critical Zone, a place that The National Research Council (2001) defines as the "heterogeneous, near surface environment in which complex interactions involving rock, soil, water, air, and living organisms regulate the natural habitat and determine the availability of life-sustaining resources." This text provides a summary of Critical Zone research and outcomes from the NSF funded Critical Zone Observatories, providing a process-based description of the Critical Zone in a wide range of environments with a specific focus on the important linkages that exist amongst the processes in each zone. This book will be useful to all scientists and students conducting research on the Critical Zone within and outside the Critical Zone Observatory Network, as well as scientists and students in the geosciences – atmosphere, geomorphology, geology and pedology. - The first text to address the principles and concepts of the Critical Zone - A comprehensive approach to the processes responsible for the development and structure of the Critical Zone in a number of environments - An essential tool for undergraduate and graduate students, and researchers developing cutting-edge proposals
Download or read book The Periglacial Environment written by Hugh M. French and published by John Wiley & Sons. This book was released on 2017-10-27 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Periglacial Environment, Fourth Edition, is an authoritative overview of the world’s cold, non-glacial environments. First published in 1976 and subsequently revised in 1996 and 2007, the text has been the international standard for nearly 40 years. The Fourth Edition continues to be a personal interpretation of the frost-induced conditions, geomorphic processes and landforms that characterize periglacial environments. Part One discusses the periglacial concept and describes the typical climates and ecosystems that are involved. Part Two describes the geocryology (permafrost science) associated with frozen ground. Part Three outlines the weathering and geomorphic processes associated with cold-climate conditions. Part Four provides insight into the periglacial environments of the Quaternary, especially the Late Pleistocene. Part Five describes some of the problems associated with human occupancy in regions that experience frozen ground and cold-climate conditions. Extensively revised and updated Written by an expert with over 50 years of field research Draws upon the author’s personal experience from Northern Canada, Alaska, Siberia, Tibet, Antarctica, Svalbard, Scandinavia, southern South America, Western Europe and eastern North America This book is an invaluable reference for advanced undergraduates in geography, geology, earth sciences and environmental sciences programs, and to resource managers and geotechnical engineers interested in cold regions.
Download or read book Distribution of Permafrost in North America and Its Relationship to the Environment written by A. G. Wilson and published by . This book was released on 1972 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alcan Pipeline Project Alaska Natural Gas Transportation Systems written by and published by . This book was released on 1976 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1976 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book SIPRE Report written by and published by . This book was released on with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
