TY - GEN
T1 - LONG-TERM MORPHOLOGICAL CHANGE of BACKSHORE DUNES
AU - Udo, Keiko
AU - Takewaka, Satoshi
AU - Nishimura, Hitoshi
N1 - Publisher Copyright:
© 2003 World Scientific Publishing Co. Pte. Ltd.
PY - 2003
Y1 - 2003
N2 - Field and aerial photograph surveys have been conducted at Tsuno-ore and Oritsu beaches facing the Kashima Sea, Japan, to investigate the morphological behavior of backshore dunes. Results of the field survey showed that the rate of change in backshore ground elevation increases with the area ratio of vegetation covering the ground. On the other hand, the aerial photographs over 10 years revealed that over time transverse winds divide artificial longshore dunes into smaller dunes, roughly 100m in length. Landward blown sand notably increased over gaps which appeared between the small dunes. At the Tsuno-ore beach, a small dune was deformed into a crescent barchanoid dune. The deformation of this dune was successfully simulated through an FDM computation. The Kawamura formula was employed in the 3D numerical model with additional terms representing the effects of sand surface slope and vegetation.
AB - Field and aerial photograph surveys have been conducted at Tsuno-ore and Oritsu beaches facing the Kashima Sea, Japan, to investigate the morphological behavior of backshore dunes. Results of the field survey showed that the rate of change in backshore ground elevation increases with the area ratio of vegetation covering the ground. On the other hand, the aerial photographs over 10 years revealed that over time transverse winds divide artificial longshore dunes into smaller dunes, roughly 100m in length. Landward blown sand notably increased over gaps which appeared between the small dunes. At the Tsuno-ore beach, a small dune was deformed into a crescent barchanoid dune. The deformation of this dune was successfully simulated through an FDM computation. The Kawamura formula was employed in the 3D numerical model with additional terms representing the effects of sand surface slope and vegetation.
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U2 - 10.1142/9789812791306_0317
DO - 10.1142/9789812791306_0317
M3 - Conference contribution
AN - SCOPUS:84950136031
T3 - Proceedings of the Coastal Engineering Conference
SP - 3786
EP - 3798
BT - Proceedings of the 28th International Conference on Coastal Engineering 2002
A2 - Smith, Jane McKee
PB - American Society of Civil Engineers (ASCE)
T2 - 28th International Conference on Coastal Engineering, ICCE 2002
Y2 - 7 July 2002 through 12 July 2002
ER -