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Bagnold delineates his research into two distinct stages. The first, which constitutes the primary focus of the book, investigates the dynamics of sand movement across mostly flat terrains. This includes understanding how sand is lifted, transported, and accumulated on a plane surface. Bagnold's wind
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The book explores the movement of sand in desert environments, with a particular emphasis on how wind affects the formation and movement of dunes and ripples. Bagnold's interest in this subject was spurred by his extensive desert expeditions, during which he observed various sand storms. One pivotal
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The book emphasises the feasibility of replicating these natural phenomena under controlled conditions in a laboratory. By using a wind tunnel, Bagnold sought to gain a deeper understanding of the physics governing the interaction between airstreams and sand grains, and vice versa. His aim was to
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Acknowledging the pioneering nature of his work, Bagnold expressed an awareness of the potential limitations and omissions in his study. He also emphasised the balance he attempted to strike between providing a rigorous scientific treatment, incorporating mathematical models and diagrams, while
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of airstreams as they navigate the curved surfaces of sand accumulations, hinting at the complexities of studying such natural systems. Apart from examining sand and its dynamics in the context of wind, Bagnold also makes comparisons between sand and dry granular
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Bagnold finished writing the book in 1939, and it was first published on 26 June 1941. A reprinted version, with minor revisions by
Bagnold, was published by Chapman and Hall in 1953, and reprinted again in 1971. The book was reissued by Dover Publications in
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ensure that findings from controlled experiments mirrored real-world conditions, with verifications of these laboratory results conducted through field observations in the Libyan Desert in the late 1930s.
678:
Baker, Mariah M.; Lapotre, Mathieu G. A.; Minitti, Michelle E.; Newman, Claire E.; Sullivan, Robert; Weitz, Catherine M.; Rubin, David M.; Vasavada, Ashwin R.; Bridges, Nathan T.; Lewis, Kevin W. (2018).
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O'ConnellâCooper, C. D.; Spray, J. G.; Thompson, L. M.; Gellert, R.; Berger, J. A.; Boyd, N. I.; Desouza, E. D.; Perrett, G. M.; Schmidt, M.; VanBommel, S. J. (2017).
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tunnel experiments from the mid-1930s form the core of his analysis, though the book also dedicates chapters to the morphology of naturally occurring sand formations.
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40:. During his expeditions into the Libyan Desert, Bagnold had been fascinated by the shapes of the sand dunes, and after returning to England he built a
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Barndorff-Nielsen, Ole E.; BlÌsild, Preben; Jensen, Jens Ledet; Sørensen, Michael (1985), Atkinson, Anthony C.; Fienberg, Stephen E. (eds.),
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92:, noting the parallels in their movement. Differences and similarities between sand movement in air versus water are also highlighted.
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591:"APXSâderived chemistry of the Bagnold dune sands: Comparisons with Gale Crater soils and the global Martian average"
632:"The Mars Science Laboratory (MSL) Bagnold Dunes Campaign, Phase I: Overview and introduction to the special issue"
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681:"The Bagnold Dunes in Southern Summer: Active Sediment Transport on Mars Observed by the Curiosity Rover"
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Cox, Percy; Sandford, K. S.; Cornish, Vaughan; Spencer, L. J.; Kitson, Albert E.; Bagnold, R. A. (1935).
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Tsoar, H. (1994). "Bagnold, R.A. 1941: The physics of blown sand and desert dunes. London: Methuen".
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28:. The book laid the foundations of the scientific investigation of the transport of
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The second stage, which
Bagnold indicates is yet to be fully explored, delves into
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372:"Bagnold, R.A. 1941: The physics of blown sand and desert dunes. London: Methuen"
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ensuring the content remained accessible to experts across diverse fields, from
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for studying sand dunes and the development of sand-driving mechanisms on
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The book is still a main reference in the field, and was used by
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and conducted the experiments which are the basis of the book.
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60:, predominantly occurs near the ground, within a height of one
333:"Measurements of sand transport by wind on a natural beach"
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observation was that the movement of sand, unlike that of
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by wind. It also discusses the formation and movement of
545:"Fluid transport on Earth and aeolian transport on Mars"
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A short film containing an interview with R.A. Bagnold
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Progress in
Physical Geography: Earth and Environment
508:, New York, NY: Springer New York, pp. 57â87,
630:Bridges, Nathan T.; Ehlmann, Bethany L. (2018).
8:
331:Svasek, J. N.; Terwindt, J. H. J. (1974).
288:The Physics of Blown Sand and Desert Dunes
265:. 320 pages. New York: Dover Publications.
263:The Physics of Blown Sand and Desert Dunes
187:"In Retrospect: the physics of sand dunes"
171:The Physics of Blown Sand and Desert Dunes
21:The Physics of Blown Sand and Desert Dunes
729:"Recap of the Bagnold Dune Investigation"
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418:"The Movement of Desert Sand: Discussion"
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64:, and was less influenced by large-scale
636:Journal of Geophysical Research: Planets
595:Journal of Geophysical Research: Planets
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468:Earth Surface Processes and Landforms
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768:The Bibliography of Aeolian Research
543:Sagan, Carl; Bagnold, R. A. (1975).
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349:10.1111/j.1365-3091.1974.tb02061.x
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149:Bibliography of Aeolian Research
24:is a scientific book written by
762:British Army Officers 1939-1945
228:Progress in Physical Geography
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727:O'Connell-Cooper, Catherine.
261:Bagnold, Ralph Alger (2005).
174:. 265 pages. London: Methuen.
168:Bagnold, Ralph Alger (1941).
685:Geophysical Research Letters
561:10.1016/0019-1035(75)90080-9
514:10.1007/978-1-4613-8560-8_4
506:A Celebration of Statistics
16:Book by Ralph Alger Bagnold
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388:10.1177/030913339401800105
240:10.1177/030913339401800105
502:"The Fascination of Sand"
301:10.1007/978-94-009-5682-7
799:Methuen Publishing books
422:The Geographical Journal
285:Bagnold, R. A. (1971).
784:1941 non-fiction books
480:10.1002/esp.3290180206
462:McEwan, I. K. (1993).
733:NASA Mars Exploration
185:Ball, Philip (2009).
98:hydraulic engineering
68:currents in the air.
698:10.1029/2018GL079040
649:10.1002/2017JE005401
608:10.1002/2017JE005268
370:Tsoar, Haim (1994).
203:2009Natur.457.1084B
197:(7233): 1084â1085.
293:Chapman & Hall
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601:(12): 2623â2643.
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310:978-94-009-5684-1
129:Aeolian processes
81:aeolian transport
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485:20 October
447:20 October
401:20 October
316:20 October
291:. London:
155:References
102:geophysics
34:sand dunes
707:0094-8276
658:2169-9097
617:2169-9097
569:0019-1035
442:0016-7398
396:0309-1333
357:0037-0746
248:128754401
123:See also
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117:Mars
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