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 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 Sensitivity of permafrost to climate warming in Canada written by and published by Natural Resources Canada. This book was released on with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in Canada written by Roger James Evan Brown and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in Canada written by R. J. E. Brown and published by . This book was released on 1967 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in Canada written by Roger J. Brown and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in Canada written by Geological Survey of Canada and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensitivity of Permafrost to Climate Warming in Canada written by Sharon Lee Smith and published by Geological Survey. This book was released on 2004 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comptes Rendus de la Quatri me Conf rence Canadienne Sur Le Perg lisol Calgary Alberta March 2 6 Mars 1981 written by National Research Council of Canada. Associate Committee on Geotechnical Research and published by . This book was released on 1982 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes papers on climate and permafrost, permafrost and soils, hydrology in permafrost regions, geophysics and subsea permafrost, gas hydrates and permafrost, laboratory testing of frozen soils and engineering applications in permafrost areas.
Download or read book Permafrost in Canada written by and published by . This book was released on 1949 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canada s Cold Environments written by Hugh M. French and published by McGill-Queen's Press - MQUP. This book was released on 1993 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low temperatures, wind-chill, snow, sea ice, and permafrost have been primary characteristics of Canada's northern and alpine environments during the past two million years. The evolution of Canada's cultural landscapes, the processes of settlement of rural areas, and the present interaction of Canadian industrial society with its biophysical environment are all deeply influenced, directly or indirectly, by the frigidity of the greater part of the country. The phenomenon of global warming, if it occurs, will lessen this coldness, but its impact on temperature extremes, sea ice regimes, vegetation, snow distribution, permafrost, glaciers, lakes, rivers, and mountain hazards are all the subject of intensive research -- the highlights of which are reviewed in Canada's Cold Environments. Eleven of Canada's leading geographers, geologists, and ecologists provide an authoritative yet readable scientific statement about the physical nature of Canada's coldness. They focus on the distinctive attributes of Canada's cold environments, their temporal and spatial variability, and the constraints that coldness places on human activity. The book is aimed at environmental scientists at all levels who need informed overviews of the substantive findings on a range of cold-related topics.
Download or read book Once Upon the Permafrost written by Susan Alexandra Crate and published by Critical Green Engagements: In. This book was released on 2021-11-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Once Upon the Permafrost is a longitudinal climate ethnography about "knowing" a specific culture and the ecosystem that culture physically and spiritually depends on in the twenty-first-century context of climate change. Through careful integration of contemporary narratives, on-site observations, and document analysis, Susan Alexandra Crate shows how local understandings of change and the vernacular knowledge systems they are founded on provide critical information for interdisciplinary collaboration and effective policy prescriptions.
Download or read book Permafrost in Canada It s Effects on Development in a Region of Marginal Human Activity written by Roger James Evan Brown and published by . This book was released on 1961 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Canadian Regional Permafrost Conference 1 and 2 December 1964 written by National Research Council Canada. Associate Committee on Soil and Snow Mechanics and published by . This book was released on 1965 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Permafrost in the Canadian Arctic Archipelago written by R. J. E. (Roger James Evan) Brown and published by 1972.. This book was released on 1972 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Permafrost Environment written by Stuart A. Harris and published by Routledge. This book was released on 2020-03-31 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1986, The Permafrost Environment examines how the search for oil, gas and minerals in the arctic region instigated new and vitally important needs to understand the permafrost environment. The construction of roads, airfields, buildings and pipelines in this inhospitable environment has posed enormous problems for engineers and geologists. This book is a comprehensive review of the nature of the permafrost environment and its utilization. It looks at environmental processes and their effects and examines the management problems which result. It provides a detailed look at how normal procedures for construction etc. need to be modified to cope with the special conditions and it gives examples from throughout the arctic region, including Canada, Siberia, Alaska, Greenland and Northern Scandinavia.
Download or read book Permafrost in Canada written by Roger James Evan Brown and published by . This book was released on 1961 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
