Formation process of depositional landform over a permeable flat plain

M. Ogasawara; M. Sekine

Formation process of depositional landform over a permeable flat plain

M. Ogasawara^*, M. Sekine

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The formation process of depositional landform over a one-dimensional permeable flat plain was investigated numerically in this paper. In such a process, a water exchange between a surface flow and a subsurface flow is important to be taken into account. The governing equations of the flows are one-dimensional shallow water equations for surface flow, and two-dimensional Richards' equation for subsurface flow. As a result of this study, the following two processes were confirmed: (a) a front of surface flow migrates a little in the downstream direction due to the loss of surface-flow discharge, and the thickness of the depositional landform increases; (b) the front migrates with relatively high speed due to the recovery of surface-flow discharge, and the depositional landform spread in the downstream direction.

Original language	English
Title of host publication	River, Coastal and Estuarine Morphodynamics
Subtitle of host publication	RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
Pages	885-890
Number of pages	6
Publication status	Published - 2008 Dec 1
Event	5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007 - Enschede, Netherlands Duration: 2007 Sept 17 → 2007 Sept 21

Publication series

Name	River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics
Volume	2

Conference

Conference	5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007
Country/Territory	Netherlands
City	Enschede
Period	07/9/17 → 07/9/21

ASJC Scopus subject areas

Ecology
Environmental Engineering

Cite this

Ogasawara, M., & Sekine, M. (2008). Formation process of depositional landform over a permeable flat plain. In River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics (pp. 885-890). (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; Vol. 2).

Formation process of depositional landform over a permeable flat plain. / Ogasawara, M.; Sekine, M.
River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. p. 885-890 (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ogasawara, M & Sekine, M 2008, Formation process of depositional landform over a permeable flat plain. in River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics, vol. 2, pp. 885-890, 5th IAHR-Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2007, Enschede, Netherlands, 07/9/17.

Ogasawara M, Sekine M. Formation process of depositional landform over a permeable flat plain. In River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. p. 885-890. (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics).

Ogasawara, M. ; Sekine, M. / Formation process of depositional landform over a permeable flat plain. River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics. 2008. pp. 885-890 (River, Coastal and Estuarine Morphodynamics: RCEM 2007 - Proceedings of the 5th IAHR Symposium on River, Coastal and Estuarine Morphodynamics).

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Formation process of depositional landform over a permeable flat plain

Abstract

Publication series

Conference

ASJC Scopus subject areas

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