Download or read book Mapping of Erosion Features Related to Thaw of Permafrost in Bering Land Bridge National Preserve Cape Krusenstern National Monument and Kobuk Valley National Park Scholar s Choice Edition written by National Park Service (Nps) and published by Scholar's Choice. This book was released on 2015-02-15 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Permafrost Erosion Along the Beaufort Sea Coast written by Robert I. Lewellen and published by Washington : Arctic Institute of North America. This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the report is to illustrate and focus attention on the permafrost erosion along the Beaufort Sea coast of Northern Alaska. The thermal erosion of permafrost along the coast results in shore line recessions as great as ten meters (33 feet) per year. The recession is caused by wave action and air temperatures thawing the frozen sediments. The two areas which are discussed in detail are Elson Lagoon and Flaxman Island. Elson Lagoon is located south of Point Barrow, Alaska. Flaxman Island is adjacent to the Prudhoe Bay oil development activity. The receding shore lines must be considered before a logical definition of this region is possible.
Download or read book Permafrost Degradation and Coastal Erosion and Their Potential Impacts on Civil Infrastructure in the Arctic written by Min Liew and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Degradation and erosion of permafrost have induced irreversible damage to civil infrastructure across the Arctic. These unprecedented changes are now threatening indigenous Arctic communities, urging them to consider community-wide relocations. It is therefore important to understand the geotechnical implications of permafrost affected by the changing climate. In this dissertation, a comprehensive research framework is developed to understand the effects of permafrost degradation and permafrost coastal erosion and their potential impacts on civil infrastructure in the Arctic. This dissertation aims to facilitate a physics-informed, culturally relevant, and inclusive infrastructure planning process for the Arctic community by bridging the experience of indigenous Arctic communities and the expertise of multidisciplinary scientific communities. A community survey is first designed and conducted to understand the effects of permafrost degradation and coastal erosion on civil infrastructure. Observations were collected from residents in four Arctic coastal communities: Point Lay, Wainwright, Utqiaġvik, and Kaktovik. The types, locations, and periods of observed permafrost thaw and coastal erosion were elicited. Survey participants also reported the types of civil infrastructure being affected by permafrost degradation and coastal erosion and any damage to residential buildings. This study shows a useful approach to coproduce knowledge with Arctic residents to identify locations of permafrost thaw and coastal erosion at higher spatial resolution as well as the types of infrastructure damage of most concern to Arctic residents. Then, the state-of-practice of coastal erosion control measures in permafrost regions are synthesized. The study shows the challenges in constructing the current erosion control measures and the escalating cost of the measures over the last four decades. Emerging solutions and research gaps are also identified and discussed so that these measures may be upscaled for full-scale applications in the future. In this dissertation, the physical processes of permafrost degradation are synthesized and presented in a geotechnical context. Geophysical and geomechanical properties of permafrost that are critical for the assessment of foundation performance under permafrost degradation are identified, collected, and analyzed. While the data collected are highly scattered, regression analysis shows that most of the geomechanical and geophysical properties have strong associations with temperature. These associations highlight that the ongoing warming can greatly affect the performance of civil infrastructures in the Arctic. Finally, a three-dimensional fully coupled thermo-hydro-mechanical (THM) model is developed to simulate permafrost degradation. Physical processes such as heat conduction, phase change, thermal convection, fluid flow due to pore water pressure, elevation, and thermal gradient, and force equilibrium based on effective stress theory are considered in this model. The THM model is validated using thaw settlement results from the literature. A parametric study is also conducted to investigate the influences of various input parameters on the thermo-hydro-mechanical behaviors of permafrost with temperature.
Download or read book Opportunities for Permafrost related Research Associated with the Trans Alaska Pipeline System written by National Research Council. Committee on Permafrost and published by . This book was released on 1975 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Penetrating Radar for Archaeology written by Lawrence B. Conyers and published by AltaMira Press. This book was released on 2013-06-20 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise and easy-to-read summary of all the latest and crucial aspects of ground-penetrating radar uses and data collection, analysis, and processing for archaeological mapping and exploration
Download or read book Encyclopedia of Prehistory written by Peter N. Peregrine and published by Springer. This book was released on 2001-02-28 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Prehistory represents also defined by a somewhat different set of an attempt to provide basic information sociocultural characteristics than are eth on all archaeologically known cultures, nological cultures. Major traditions are covering the entire globe and the entire defined based on common subsistence prehistory of humankind. It is designed as practices, sociopolitical organization, and a tool to assist in doing comparative material industries, but language, ideology, research on the peoples of the past. Most and kinship ties play little or no part in of the entries are written by the world's their definition because they are virtually foremost experts on the particular areas unrecoverable from archaeological con and time periods. texts. In contrast, language, ideology, and The Encyclopedia is organized accord kinship ties are central to defining ethno ing to major traditions. A major tradition logical cultures. is defined as a group of populations sharing There are three types of entries in the similar subsistence practices, technology, Encyclopedia: the major tradition entry, and forms of sociopolitical organization, the regional sub tradition entry, and the which are spatially contiguous over a rela site entry. Each contains different types of tively large area and which endure tempo information, and each is intended to be rally for a relatively long period. Minimal used in a different way.
Download or read book Alaska s Changing Boreal Forest written by F. Stuart Chapin and published by Oxford University Press. This book was released on 2006-01-12 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Boreal forest is the northern-most forest in the world, whose organisms and dynamics are shaped by low temperature and high latitude. The Alaskan Boreal forest is warming as rapidly as any place on earth, providing an opportunity to examine a biome as it adjusts to change. This book looks at this issue.
Download or read book Geocryology written by Stuart A. Harris and published by CRC Press. This book was released on 2017-09-28 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a general survey of Geocryology, which is the study of frozen ground called permafrost. Frozen ground is the product of cold climates as well as a variety of environmental factors. Its major characteristic is the accumulation of large quantities of ice which may exceed 90% by volume. Soil water changing to ice results in ground heaving, while thawing of this ice produces ground subsidence often accompanied by soil flowage. Permafrost is very susceptible to changes in weather and climate as well as to changes in the microenvironment. Cold weather produces contraction of the ground, resulting in cracking of the soil as well as breakup of concrete, rock, etc. Thus permafrost regions have unique landforms and processes not found in warmer lands. The book is divided into three parts. Part 1 provides an introduction to the characteristics of permafrost. Four chapters deal with its definition and characteristics, the unique processes operating there, the factors affecting it, and its general distribution. Part 2 consists of seven chapters describing the characteristic landforms unique to these areas and the processes involved in their formation. Part 3 discusses the special problems encountered by engineers in construction projects including settlements, roads and railways, the oil and gas industry, mining, and the agricultural and forest industries. The three authors represent three countries and three language groups, and together have over 120 years of experience of working in permafrost areas throughout the world. The book contains over 300 illustrations and photographs, and includes an extensive bibliography in order to introduce the interested reader to the large current literature. Finalist of the 2019 PROSE Awards.
Download or read book Management Policies written by United States. National Park Service and published by . This book was released on 1988 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arctic Climate Impact Assessment Scientific Report written by Arctic Climate Impact Assessment and published by Cambridge University Press. This book was released on 2005-11-07 with total page 1053 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arctic is now experiencing some of the most rapid and severe climate change on earth. Over the next 100 years, climate change is expected to accelerate, contributing to major physical, ecological, social, and economic changes, many of which have already begun. Changes in arctic climate will also affect the rest of the world through increased global warming and rising sea levels. Arctic Climate Impact Assessment was prepared by an international team of over 300 scientists, experts, and knowledgeable members of indigenous communities. The report has been thoroughly researched, is fully referenced, and provides the first comprehensive evaluation of arctic climate change, changes in ultraviolet radiation and their impacts for the region and for the world. It is illustrated in full color throughout. The results provided the scientific foundations for the ACIA synthesis report - Impacts of a Warming Arctic - published by Cambridge University Press in 2004.
Download or read book The Las Vegas Formation written by Kathleen B. Springer and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Las Vegas Formation was established in 1965 to designate the distinctive light-colored, fine-grained, fossil-bearing sedimentary deposits exposed in and around the Las Vegas Valley, Nevada. In a coeval designation, the sediments were subdivided into informal units with stratigraphic and chronologic frameworks that have persisted in the literature. Use of the Las Vegas Formation name over the past half century has been hampered because of the lack of a robust definition and characterization of the entire lithostratigraphic sequence and its geographic distribution and chronology. This study evaluates and describes deposits attributed to the Las Vegas Formation with detailed stratigraphy, sedimentology, and field relations"--Provided by publisher.
Download or read book The Meaning of Ice written by Shari Fox Gearheard and published by International Polar Institute. This book was released on 2017-05-31 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Inuit relationship with sea ice told through stories, artwork and photographs
Download or read book The Mesa Site written by U.S. Department of the Interior and published by Createspace Independent Publishing Platform. This book was released on 2014-02-20 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 1978 and 1999, excavations in arctic and western Alaska have revealed the presence of Paleoindians during terminal Pleistocene/early Holocene times, ca. 12,000 to 9500 years BP (Before Present). The Type Site for this cultural manifestation, the Mesa Site, is located on the northern flank of the central Brooks Range at N68° 24.72 W155° 48.02, amid rolling foothills that extend northward 40 miles to the Colville River. The site lies atop a mesa-like ridge that rises 180 feet above the floor of the Iteriak Creek valley, offering an unobstructed 360° view of the surrounding treeless countryside. Excavation at the site has produced the remains of more than 450 formal flaked stone tools and over 120,000 pieces of lithic debitage, which comprise an assemblage typical of the “classic” Paleoindian cultures of the North American High Plains. More than 150 of the artifacts are the complete or fragmentary remains of lanceolate projectile points, many of which have been recovered from within the charcoal/soil matrix of discrete hearths which are the central features of numerous activity areas. The age of the occupation is constrained by 44 uncalibrated AMS radiocarbon dates covering the interval 11,700 to 9700 years BP. The site lacks evidence of any widespread postdepositional disturbance and, except for a small, discrete manifestation in Locality A, contains no remains of more recent cultures. The composition of the Mesa artifact assemblage and its obvious technological relationship with the Paleoindian cultures of mid-continent North America mark it as distinctly different from other ancient arctic cultures. The presence of the Mesa Complex demonstrates a previously undocumented cultural diversity in Eastern Beringia at the Pleistocene/Holocene boundary. This is an interim report. The amount of data generated by the Mesa project is immense. Although we engaged in some analysis and compilation of data as we progressed through the field work, we are not in a position to present this information in its totality. Therefore, limits have necessarily been placed upon the scope of this report so that it can be completed in a reasonable amount of time. While some primary analysis has not been completed, we have enough information to present a report that is more descriptive and introspective than a raw data monograph. In this report, we address the scope of research, order and describe the data analyzed so far, and interpret and summarize the findings to date. This will be accomplished by discussing the following subjects: the culture history of the region and the place of the Mesa Complex within that culture history framework; the natural setting of the site region; the excavation and data collection methods; the description of the site including the natural and cultural stratigraphy, cultural features, localities and activity areas; the flaked stone industry including artifact typology, tool-stone variety, and tool use; the regional Pleistocene faunal assemblage; the regional Pleistocene climate and ecology; and site use.
Download or read book A Voyage of Discovery Into the South Sea and Beering s Straits for the Purpose of Exploring a North east Passage Undertaken in the Years 1815 1818 at the Expense of His Highness the Chancellor of the Empire Count Romanzoff in the Ship Rurick written by Otto von Kotzebue and published by . This book was released on 1821 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ancient Men of the Arctic written by James Louis Giddings and published by Seattle : University of Washington Press. This book was released on 1985-01-01 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1967 by Alfred A. Knopf. Retrospective view of work in northwest Alaska by pioneer archaeologist and its relation to Eskimo prehistory. Includes an introduction by Henry B. Collins.
Download or read book History of Alaska written by Hubert Howe Bancroft and published by . This book was released on 1886 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cruise of the Corwin Scholar s Choice Edition written by John Muir and published by . This book was released on 2015-02-20 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
