In:
Geoscientific Model Development, Copernicus GmbH, Vol. 13, No. 3 ( 2020-03-27), p. 1583-1607
Abstract:
Abstract. Consequences of tidal dynamics on hydro-sedimentary processes are a recurrent
issue in estuarine and coastal processes studies, and accurate tidal
solutions are a prerequisite for modeling sediment transport, especially in
macro-tidal regions. The motivation for the study presented in this
publication is to implement and optimize a model configuration that will
satisfy this prerequisite in the frame of a larger objective in order to study the
sediment dynamics and fate from the Red River Delta to the Gulf of Tonkin from
a numerical hydrodynamical–sediment coupled model. Therefore, we focus on
the main tidal constituents to conduct sensitivity experiments on the
bathymetry and bottom friction parameterization. The frequency-domain solver
available in the hydrodynamic unstructured grid model T-UGOm has been used
to reduce the computational cost and allow for wider parameter explorations.
Tidal solutions obtained from the optimal configuration were evaluated from
tide measurements derived from satellite altimetry and tide gauges; the use
of an improved bathymetry dataset and fine friction parameter adjustment
significantly improved our tidal solutions. However, our experiments seem to
indicate that the solution error budget is still dominated by bathymetry
errors, which is the most common limitation for accurate tidal modeling.
Type of Medium:
Online Resource
ISSN:
1991-9603
DOI:
10.5194/gmd-13-1583-2020
Language:
English
Publisher:
Copernicus GmbH
Publication Date:
2020
detail.hit.zdb_id:
2456725-5
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