Localized sigma coordinates for the vertical structure of hydrodynamic models

Andre B. Fortunato, Antonio M. Baptista

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

This paper analyzes the use of localized sigma coordinates in the numerical solution of the vertical structure of coastal flows. We show, through a combination of truncation error analysis and 2D (vertical) numerical experimentation, that localized sigma coordinates have two important advantages over the more traditional domain-wide sigma coordinates: the evaluation of horizontal gradients of density in the presence of steep bottom slopes is more accurate, and the vertical discretization can be freely placed where it is needed. These two advantages appear to far out weight, for practical situations, the restrictions imposed by the fact that the localized sigma coordinates are only conditionally consistent.

Original languageEnglish (US)
Title of host publicationProc 3 Int Conf Estuarine Coastal Model 3
EditorsMalcolm L. Spaulding, Keith Bedford, Alan Blumberg, Ralph Cheng, Craig Swanson
PublisherPubl by ASCE
Pages323-335
Number of pages13
ISBN (Print)0872629759
StatePublished - Jan 1 1994
EventProceedings of the 3rd International Conference on Estuarine and Coastal Modeling III - Oak Brook, IL, USA
Duration: Sep 8 1993Sep 10 1993

Publication series

NameProc 3 Int Conf Estuarine Coastal Model 3

Other

OtherProceedings of the 3rd International Conference on Estuarine and Coastal Modeling III
CityOak Brook, IL, USA
Period9/8/939/10/93

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Fortunato, A. B., & Baptista, A. M. (1994). Localized sigma coordinates for the vertical structure of hydrodynamic models. In M. L. Spaulding, K. Bedford, A. Blumberg, R. Cheng, & C. Swanson (Eds.), Proc 3 Int Conf Estuarine Coastal Model 3 (pp. 323-335). (Proc 3 Int Conf Estuarine Coastal Model 3). Publ by ASCE.