Coastal Sand Dunes of Guerrero Negro, Baja California, Mexico

Aeolian dune field self-organization – implications for the formation of simple versus complex dune-field patterns

“…Examples of simple dune patterns include the crescentic dunes of White Sands, New Mexico (McKee, 1966) (Fig. 1), Guerro Negro, Baja California (Inman et al, 1966), and the Skeleton Coast, Namibia (Lancaster, 1982). Complex dune-field patterns show a broad range of superimposed patterns, with examples including the three trends of linear dunes of differing size in western Mauritania (Lancaster et al, 2002) (Fig.…”

State-of-the-Art in Japan on Controlling Wind-Blown Sand on Beaches

“…Then the dune begins to migrate downwind, resulting in the delay of sand movement (Bagnold 1973, Inman et al 1966. A beach earthwork may also include an obliquely oriented artificial foredune, which makes the wind-blown sand flow turn sideways.…”

Groundwater Controls and Processes

“…Residual dune ridges may develop as a result of the establishment of dune vegetation along a line partway up the lower stoss slope of dunes during periods of higher water table (Levin et al, 2009). The causes of such water table fluctuations could include the inundation of interdune areas during fluvial flood events (Langford, 1989;Purvis, 1991) or by seawater from lagoons at high tide (Inman, Ewing and Corliss, 1966). Surface vegetation may act locally to protect sediments from wind erosion, while plant roots and intergranular surface tension due to pore water may act to bind deeper sediments, resulting in the development of an arcuate ridge once adjacent dune deposits are deflated.…”