Download or read book The Physics of Blown Sand and Desert Dunes written by Ralph Bagnold and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: THE NATURE OF THE PROBLEM THIS book results from an attempt to explain on a basis of experimental physics some of the many strange phenomena produced by the natural movement of sand over the dry land of the Earth. The subject is but one aspect of a far wider problem which is still very imperfectly grasped-the transport of solid particles of any kind by fluids in general. Here the difficulty has been, and still is, that no one branch of science has attempted to deal with the problem as a whole, or to co-ordinate the vast amount of piecemeal work by students of different outlook in many unrelated fields. The carriage of silt by rivers has received a great deal of attention from engineers. But owing to the difficulties of direct measurement, to the expense and labour of conducting full-scale experiments, and to a failure to find agreement as to the basic quantities upon which a theoretical edifice may be built, the published results are far from satisfactory. Little has emerged except empirical formulae; and these are rarely capable of reliable application to conditions other than those under which they were evolved. The drifting of snow is of direct interest to transport authorities in many countries, to meteorologists engaged in the study of rainfall, to ski-runners and to mountaineers. Yet no means has been found whereby the precipitation can be gauged, or the rate of drift related to the strength of the wind.
Download or read book The Physics of Blown Sand and Desert Dunes written by Ralph Alger Bagnold and published by . This book was released on 1954 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert Dunes written by R.A. Bagnold and published by . This book was released on 1941 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert Dunes written by Ralph Alger Bagnold and published by . This book was released on 1960 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert Dunes written by Ralph Alger Bagnold (Geographer, Geophysicist, Great Britain) and published by . This book was released on 1941 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeolian Sand and Sand Dunes written by and published by Springer Science & Business Media. This book was released on 2008-11-14 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is more than half a century since the publication of R. A. Bagnold’s classic book The physics of blown sand and desert dunes, and it is a tribute to the quality of Bagnold’s work that many of the fundamental principles which he developed - main valid today. His book continues to be essential reading for any serious s- dent of aeolian processes. However, the past two decades have seen an explosion in the scale of research dealing with aeolian transport processes, sediments, and landforms. Some of this work has been summarized in review papers and edited conference proceedings, but this book provides the rst attempt to review the whole eld of aeolian sand research. Inevitably, it has not been possible to cover all - pects in equal depth, and the balance of included material naturally re ects the - thors’ own interests to a signi cant degree. However, our aim has been to provide as broad a perspective as possible, and to provide an entry point to an extensive mul- disciplinary scienti c literature, some of which has not been given the attention it deserves in earlier textbooks and review papers. Many examples are drawn from existing published work, but the book also makes extensive use of our own research in the Middle East, Australia, Europe, and North America. The book has been written principally for use by advanced undergraduates, po- graduates, and more senior research workers in geomorphology and sedimentology.
Download or read book The Physics of Blown Sand and Desert Dunes written by Ralph Alger Bagnold (Geophysiker, Geograph, Grossbritannien) and published by . This book was released on 1954 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert Dunes With Plates and Diagrams Etc written by Ralph Alger Bagnold and published by . This book was released on 1941 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert written by R. A. Bagnold and published by Halsted Press. This book was released on 1973-01 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dune Worlds written by Ralph D. Lorenz and published by Springer Science & Business Media. This book was released on 2014-04-22 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how sand dunes work, why they are the way they are in different settings, and how they are being studied. Particular attention is paid to their formation and appearance elsewhere in the solar system. New developments in knowledge about dunes make for an interesting story – like the dunes themselves, dune science is dynamic – and the visual appeal of Aeolian geomorphology ensures that this is an attractive volume. The book is divided into 4 parts, the first of which introduces dunes as a planetary phenomenon, showing a landscape reflecting the balance of geological processes – volcanism, impact, tectonics, erosion, deposition of sediments. Dunes are then considered as emergent dynamical systems: the interaction of sand and wind conspires to generate very characteristic and reproducible shapes. Analogies are given with other emergent structures such as patterned ground before the influence of dunes on desert peoples and infrastructure is studied, together with their use as forensic climatological indicators. Dune Physics is looked at with regard to the mechanics of sand, the physics of wind, saltation – interaction of sand and air – dunes versus ripples and transverse Aeolian ridges, the classification of dune morphology and the sources and sinks of sand. Dune Trafficability considers soil mechanics, effects on mobility on Earth, Mars and elsewhere. In the second part, Earth, Mars, Titan and other moons and planets are examined, beginning with a survey of the major deserts and dunefields on Earth. The authors then turn to Mars and its environment, sediment type, dune stratigraphy, sediment source and sinks and the association of dunes with topographic features. Titan follows - its thick, cold atmosphere, methane dampness, low gravity, morphology – interaction with topography and the implications of dunes for climate and winds. Dunes elsewhere conclude this part. There are few dunefields on Venus, but there is a .possibility of Aeolian transport on Triton and volcanic-related windstreaks on Io.
Download or read book Climate Change in Deserts written by Martin Williams and published by Cambridge University Press. This book was released on 2014-08-11 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: A synthesis of the environmental and climatic history of every major desert and desert margin, for researchers and advanced students.
Download or read book Modeling of Wind Blown Sand and Desert Dunes written by Gerd Sauermann and published by . This book was released on 2001 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Physics of Blown Sand and Desert Dunes written by R. A. Bagnold and published by Courier Corporation. This book was released on 2012-06-08 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to deal exclusively with the behavior of blown sand and related land forms, its accessible style makes it an enduring reference. 84 figures. 16 halftones.
Download or read book Physics and Modelling of Wind Erosion written by Yaping Shao and published by Springer Science & Business Media. This book was released on 2008-10-13 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind erosion occurs in many arid, semiarid and agricultural areas of the world. It is an environmental process in?uenced by geological and climatic variations as well as human activities. In general, wind erosion leads to land degradation in agricultural areas and has a negative impact on air quality. Dustemissiongeneratedbywinderosionisthelargestsourceofaerosolswhich directly or indirectly in?uence the atmospheric radiation balance and hence global climatic variations. Strong wind-erosion events, such as severe dust storms, may threaten human lives and cause substantial economic damage. The physics of wind erosion is complex, as it involves atmospheric, soil and land-surface processes. The research on wind erosion is multidisciplinary, covering meteorology, ?uid dynamics, soil physics, colloidal science, surface soil hydrology, ecology, etc. Several excellent books have already been written about the topic, for instance, by Bagnold (1941, The Physics of Blown Sand and Desert Dunes), Greeley and Iversen (1985, Wind as a Geological P- cess on Earth, Mars, Venus and Titan), Pye (1987, Aeolian Dust and Dust Deposits), Pye and Tsoar (1990, Aeolian Sand and Sand Dunes). However, considerable progress has been made in wind-erosion research in recent years and there is a need to systematically document this progress in a new book.
Download or read book Libyan Sands written by Ralph Alger Bagnold and published by Eland Publishing. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: R.A. Bagnold was a pioneer of desert exploration who is credited with making the first recorded east-west crossing of the Libyan Desert. 'Libyan Sands' is the story of a desert-loving young officer whose passionate amateur enthusiasm led to the exploration of the Egyptian western desert and the Libyan Sahara.
Download or read book The Physics of Blown Sands and Desert Dunes Etc written by Ralph Alger Bagnold and published by . This book was released on 1941 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeolian Geomorphology written by Ian Livingstone and published by John Wiley & Sons. This book was released on 2019-03-18 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: A revised introduction to aeolian geomorphology written by noted experts in the field The new, revised and updated edition of Aeolian Geomorphology offers a concise and highly accessible introduction to the subject. The text covers the topics of deserts and coastlines, as well as periglacial and planetary landforms. The authors review the range of aeolian characteristics that include soil erosion and its consequences, continental scale dust storms, sand dunes and loess. Aeolian Geomorphology explores the importance of aeolian processes in the past, and the application of knowledge about aeolian geomorphology in environmental management. The new edition includes contributions from eighteen experts from four continents. All the chapters demonstrate huge advances in observation, measurement and mathematical modelling. For example, the chapter on sand seas shows the impact of greatly enhanced and accessible remote sensing and the chapter on active dunes clearly demonstrates the impact of improvements in field techniques. Other examples reveal the power of greatly improved laboratory techniques. This important text: Offers a comprehensive review of aeolian geomorphology Contains contributions from an international panel of eighteen experts in the field Includes the results of the most recent research on the topic Filled with illustrative examples that demonstrate the advances in laboratory approaches Written for students and professionals in the field, Aeolian Geomorphology provides a comprehensive introduction to the topic in twelve new chapters with contributions from noted experts in the field.
