Algorithm to calculate equal-area grid cells in irregular estuarine cross-sections

Calculation of residual fluxes in estuarine cross-sections requires the definition of a grid scheme which depends on the shape of the profile and the tidal height. Although it has been demonstrated that a full proportional grid provides error-free conditions for this estimation, the computational pr...

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Bibliographic Details
Published in:Computers & geosciences 1999-04, Vol.25 (3), p.277-282
Main Authors: Perillo, Gerardo M.E., Piccolo, M.Cintia, Mosquera, José, Aggio, Santiago
Format: Article
Language:English
Subjects:
C
Cross-section grids
Earth sciences
Earth, ocean, space
Estuaries
Exact sciences and technology
Marine geology
Residual fluxes
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Summary:Calculation of residual fluxes in estuarine cross-sections requires the definition of a grid scheme which depends on the shape of the profile and the tidal height. Although it has been demonstrated that a full proportional grid provides error-free conditions for this estimation, the computational procedure to define the grid when the cross-section is geomorphologically complex is not trivial. An algorithm programmed in C ++ is presented to provide the automatic computation of a grid with equal cell areas. An advantage of the algorithm is the fact that the cell center corresponds to the center of the cell area rather than the geometric center contributing the most adequate weight and reducing further the error in the calculation of the fluxes.
ISSN:0098-3004
1873-7803
DOI:10.1016/S0098-3004(98)00163-0