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- https://geo.libretexts.org/Bookshelves/Sedimentology/Introduction_to_Fluid_Motions_and_Sediment_Transport_(Southard)/12%3A_Bed_Configurations_Generated_by_Water_Flows_and_the_Wind/12.02%3A_Unidirectional-Flow_Bed_ConfigurationsBecause the bed is always rougher than the sidewalls (except for dynamically smooth flow over a planar granular bed), and the width/depth ratio is never infinite, this estimate of \(\tau_{\text{o}b}\)...Because the bed is always rougher than the sidewalls (except for dynamically smooth flow over a planar granular bed), and the width/depth ratio is never infinite, this estimate of \(\tau_{\text{o}b}\) is always greater than the boundary shear stress averaged over the wetted perimeter of the flow, which is found from the experimental data by use of the resistance equation for steady uniform flow in an open channel, \(\tau_{\text{o}}=\rho g A S / p\), where \(A\) is the cross-sectional area of th…
- https://geo.libretexts.org/Courses/University_of_California_Davis/GEL_109%3A_Sediments_and_Strata_(Sumner)/03%3A_Virtual_Field_Trips/3.01%3A_Bagnold_Dunes_and_Gale_Crater%2C_Mars/3.1.2%3A_Phase_1_-_Barchan_DunesBackground information on Phase 1 of the MSL investigations of Bagnold dunes, Gale Crater, Mars.
- https://geo.libretexts.org/Courses/University_of_California_Davis/GEL_109%3A_Sediments_and_Strata_(Sumner)/03%3A_Virtual_Field_Trips/3.01%3A_Bagnold_Dunes_and_Gale_Crater%2C_Mars/3.1.3%3A_Phase_2_-_Linear_DunesAn introduction to Phase 2 of the MSL Bagnold dunes investigation
- https://geo.libretexts.org/Courses/Lumen_Learning/Earth_Science_(Lumen)/19%3A_Deserts
- https://geo.libretexts.org/Bookshelves/Oceanography/Coastal_Dynamics_(Bosboom_and_Stive)/08%3A_Coastal_protection/8.07%3A_Nourishments/10.7.4%3A_Dune_ReinforcementHowever, the widening of the dunes in the seaward direction disturbs the dynamic equilibrium of the cross-shore profile (the dune foot being suddenly too close to the MSL). As a result, sand from the ...However, the widening of the dunes in the seaward direction disturbs the dynamic equilibrium of the cross-shore profile (the dune foot being suddenly too close to the MSL). As a result, sand from the new dune or beach area is transported in the seaward direction and the additional volume of sand will be redistributed over a large part of the cross-shore profile (say up to the active part of the cross-shore profile).
- https://geo.libretexts.org/Bookshelves/Geography_(Physical)/The_Physical_Environment_(Ritter)/20%3A_Eolian_Systems/20.02%3A_Depositional_FormsBeach dunes are common along the coasts of the world's oceans and large lakes like the Great Lakes of North America. Vegetation or dampness in the lower part slows the dune motion there, permitting th...Beach dunes are common along the coasts of the world's oceans and large lakes like the Great Lakes of North America. Vegetation or dampness in the lower part slows the dune motion there, permitting the dry crest to push ahead of its base causing the horns to be anchored behind. The deflation hollow focuses the wind toward the center of the depression causing the sand to migrate landward as a dune. With little wind energy on the side of the hollow, the tails of the dune move much slower.
