Growth rates and scales of sand banks in the Colorado River Delta

A linear stability analysis was carried out to investigate the sand bank formation in the Colorado River Delta. A truncated solution of the vorticity equation was included in the bottom evolution equation in order to evaluate the initial growth rates of the sand banks. The growth rates were estimate...

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Hauptverfasser:	Carbajal, N, Montaño, Y
Format:	Online
Sprache:	eng
Veröffentlicht:	Iniversidad Autónoma de Baja California 1999
Online Zugang:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/728
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spelling	oai:cienciasmarinas.com.mx:article-7282019-05-16T00:23:14Z Growth rates and scales of sand banks in the Colorado River Delta Tasas de crecimiento y escalas de bancos de arena en el delta del Río Colorado Carbajal, N Montaño, Y tides sand banks growth rates Colorado River Delta mareas bancos de arena tasas de crecimientp delta del Río Colorado A linear stability analysis was carried out to investigate the sand bank formation in the Colorado River Delta. A truncated solution of the vorticity equation was included in the bottom evolution equation in order to evaluate the initial growth rates of the sand banks. The growth rates were estimated on the wave number plane for the hydrodynamic conditions of the Colorado River Delta, specifically for tidal ellipses, including unidirectional tides, and also for several depths. The wave lengths predicted with the model fluctuated between 2 and 7 km. These results agree quite well with the sand bank scales reported in the literature on the Colorado River Delta. The order of magnitude of the growth rates calculated in this study coincides with results obtained for the North Sea. Se realizó un análisis de estabilidad lineal para investigar la formación de bancos de arena en el delta del Río Colorado. Una solución aproximada de la ecuación de vorticidad se incorporó a la ecuación de cambio de fondo para evaluar las tasas de crecimiento inicial de los bancos de arena. La estimación de las tasas de crecimiento se efectuó en un plano de número de onda para condiciones hidrodinámicas del delta del Río Colorado, específicamente para elipses de mareas, incluyendo el caso de mareas unidireccionales, así como para diferentes profundidades. Las longitudes de onda predichas por el modelo varían entre 2 y 7 km. Estos resultados concuerdan muy bien con las escalas de bancos de arena reportadas en la literatura sobre el delta del Río Colorado. El orden de magnitud de las tasas de crecimiento estimado en esta investigación coincide con resultados obtenidos para el Mar del Norte. Iniversidad Autónoma de Baja California 1999-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/728 10.7773/cm.v25i4.728 Ciencias Marinas; Vol. 25 No. 4 (1999); 525-540 Ciencias Marinas; Vol. 25 Núm. 4 (1999); 525-540 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/728/655
institution	Ciencias Marinas
collection	OJS
language	eng
format	Online
author	Carbajal, N Montaño, Y
spellingShingle	Carbajal, N Montaño, Y Growth rates and scales of sand banks in the Colorado River Delta
author_facet	Carbajal, N Montaño, Y
author_sort	Carbajal, N
title	Growth rates and scales of sand banks in the Colorado River Delta
title_short	Growth rates and scales of sand banks in the Colorado River Delta
title_full	Growth rates and scales of sand banks in the Colorado River Delta
title_fullStr	Growth rates and scales of sand banks in the Colorado River Delta
title_full_unstemmed	Growth rates and scales of sand banks in the Colorado River Delta
title_sort	growth rates and scales of sand banks in the colorado river delta
description	A linear stability analysis was carried out to investigate the sand bank formation in the Colorado River Delta. A truncated solution of the vorticity equation was included in the bottom evolution equation in order to evaluate the initial growth rates of the sand banks. The growth rates were estimated on the wave number plane for the hydrodynamic conditions of the Colorado River Delta, specifically for tidal ellipses, including unidirectional tides, and also for several depths. The wave lengths predicted with the model fluctuated between 2 and 7 km. These results agree quite well with the sand bank scales reported in the literature on the Colorado River Delta. The order of magnitude of the growth rates calculated in this study coincides with results obtained for the North Sea.
publisher	Iniversidad Autónoma de Baja California
publishDate	1999
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/728
_version_	1715724003634577408

Growth rates and scales of sand banks in the Colorado River Delta

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