Sediment Dynamics in the Meghna Estuary, Bangladesh: A Model Study
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 133, Issue 4
Abstract
A depth integrated two-dimensional numerical modeling was carried out to study the sediment dynamics within the Meghna estuary. The sediment–water dynamics within this estuary are very complex due to its irregular shape, wide seasonal variation, and the changing role of the tide. Both cohesive and noncohesive sediment transport formulations were used to estimate the total transport. An interactive morphological computation was also used to verify the bed level changes over . Sediment transports of both monsoon and dry seasons (the two most hydrologically pronounced periods in this region) were modeled, and a large seasonal variation in sediment transport pattern was observed. Land reclamation dams were tested by the model and found to be effective in enhancing the accretion in its vicinity.
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Acknowledgments
The writers would like to express their appreciation to WL ∣ Delft Hydraulics for facilitating modeling work. All measurements and analyses were carried out under contract to “Meghna Estuary Study Phase II” under the Ministry of Water Resources of Bangladesh. Their consent to publish the results is gratefully acknowledged.
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 133 • Issue 4 • July 2007
Pages: 255 - 263
Copyright
© 2007 ASCE.
History
Received: Feb 23, 2005
Accepted: Apr 11, 2006
Published online: Jul 1, 2007
Published in print: Jul 2007
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