Narrow Results

In this paper, we highlight the various properties of wind-blown sand within a coastal dune, which is located on an eroded beach on the Enshu-Nada coast of Japan. Short term topographic changes of the Nakatajima dune have investigated with continuous field surveys over two years period (2007-2009). Measurements of wind and wind-blown sand transport rate were also carried out several times in winter. We found that the windward slope/dune crest in middle part of the dune is an actively eroding region by wind. The windward slope/dune crest of the dune was also migrated eastward as predominant wind direction in years or decades. The source of the sand transported mostly from the dune itself and limited amount of sand come from the shoreline, resulting the decreased in the elevation significantly in the West side of the dune.