@article{fdi:010049729,
  title = {{A}eolian erosion and sand transport over the {M}ejillones {P}ampa in the coastal {A}tacama {D}esert of northern {C}hile},
  author = {{F}lores-{A}queveque, {V}. and {A}lfaro, {S}. and {M}unoz, {R}. and {R}utllant, {J}. {A}. and {C}aquineau, {S}andrine and {L}e {R}oux, {J}. {P}. and {V}argas, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}ejillones {P}eninsula in the coastal {A}tacama {D}esert of northern {C}hile is a region in which ocean-atmosphere-land interactions are particularly strong, resulting in enhanced alongshore winds that erode the surface and transport sand particles to the sea. {B}ecause the aeolian particles in the laminated sediments at the bottom of {M}ejillones {B}ay record long-term changes in the intensity of prevailing southerly winds, it is fundamental to understand aeolian processes such as wind erosion and sand transport to improve paleoceanographic reconstructions. {T}he aim of the present study is to characterize the wind erosion process over the flat geomorphology of the northern portion of the {M}ejillones {P}eninsula, the {M}ejillones {P}ampa, including the influence of wind erosion on the initial particle size distribution and the associated fractionation processes of the mineralogical composition of moving particles, through field measurements. {I}n addition, we test the ability of an existing saltation model ({MB}95) to reproduce the variability of the erosion process during the field experiment. {S}oil samples from 17 locations on this flat surface contain significant amounts of highly erodible particles with diameters in the 200-300 mu m and 100-150 mu m size ranges. {A}eolian particles collected in {BSNE} sand traps located at different heights near the surface, exhibit a bimodal size distribution similar to that of the erodible fraction of the soils: the abundance of the fine class increasing with height. {S}mall stones that have a spatially variable distribution can locally reduce the intensity of wind erosion. {T}he mineralogical composition of moving particles is similar to that of the soils, with quartz, feldspar and calcite as the most important minerals, followed by clay minerals, gypsum and amphibole. {A} value of u(t)* is calculated for each soil particle size class. {S}ubsequently, the elementary contribution of each size class to the horizontal flux is calculated using {W}hite (1979)'s equation and the total flux is finally obtained by integration. {T}he saltation model successfully reproduces the variability of the wind erosion process during the field experiment, but over-estimates the vertically integrated mass fluxes measured in situ by two orders of magnitude.},
  keywords = {{W}ind erosion ; {A}tacama {D}esert ; {M}ejillones {P}ampa ; {S}urface roughness coefficient ; {F}riction velocity ; {S}ediment transport ; {CHILI}},
  booktitle = {},
  journal = {{G}eomorphology},
  volume = {120},
  numero = {3-4},
  pages = {312--325},
  ISSN = {0169-555{X}},
  year = {2010},
  DOI = {10.1016/j.geomorph.2010.04.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049729},
}