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Improving the Parameterisation of Horizontal Density Gradient in One-dimensional Water Column Models for Estuarine Circulation : Volume 4, Issue 4 (19/11/2008)

By Blaise, S.

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Book Id: WPLBN0004020359
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Improving the Parameterisation of Horizontal Density Gradient in One-dimensional Water Column Models for Estuarine Circulation : Volume 4, Issue 4 (19/11/2008)  
Author: Blaise, S.
Volume: Vol. 4, Issue 4
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Deleersnijder, E., & Blaise, S. (2008). Improving the Parameterisation of Horizontal Density Gradient in One-dimensional Water Column Models for Estuarine Circulation : Volume 4, Issue 4 (19/11/2008). Retrieved from

Description: Université catholique de Louvain, Unité de Génie Civil et Environnemental, Louvain-la-Neuve, Belgium. A new parameterisation of horizontal density gradient for a one-dimensional water column estuarine model, inspired by the first-order finite-difference upwind scheme, is presented. This parameterisation prevents stratification from growing indefinitely, a deficiency usually referred to as runaway stratification. It is seen that, using this upwind-like parameterisation, the salinity must remain comprised between upper and lower bounds set a priori and that any initial over- or under-shooting is progressively eliminated. Simulations of idealised and realistic estuarine regimes indicate that the new parameterisation lead to results that are devoid of the runaway stratification phenomenon, as opposed to previously used models.

Improving the parameterisation of horizontal density gradient in one-dimensional water column models for estuarine circulation

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