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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Numerical modelling of the impact of sea level rise on large tidal inlet/basin systems
Numerical modelling of the impact of sea level rise on large tidal inlet/basin systems
Author : PUSHPA DISSANAYAKE(1), HARSHINIE KARUNARATHNA(2) & ROSHANKA RANASINGHE(3)
ABSTRACT
The response of a large tidal inlet/basin system to Climate change driven sea level rise, in combination with local
subsidence is simulated with two very different numerical modelling approaches: process-based and scale-aggregated.
Delft3D (process-based) and ASMITA (scale-aggregated) models are used to simulate the morphological evolution of a
schematised inlet/basin system representing the Ameland inlet in the Dutch Wadden Sea for a Relative Sea Level Rise
scenario (RSLR) of 10 mm/year over a 25 year period. While the quantitative forecasts of the two models are different to
each other, both models qualitatively indicate, over the 25 year simulation period, (a) a flood-dominant transport system
which agrees with the contemporary measurements of the Ameland inlet, and (b) RSLR driven enhancement in the
sediment transport. The ASMITA suggests stable tidal flats with an RSLR of 10 mm/year while the tidal flats diminished
in the Delft3D.
File Size : 705,038 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 19/08/2015
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