Kelvin-Helmholtz instabilities in the Colorado River Delta, Gulf of California

• Autorzy: Carbajal Noel , Vargas José Tuxpan , Rodríguez Juan Heberto Gaviño , Ley Yovani Montaño , León David Alberto Salas de

Identyfikatory

DOI

10.1016/j.oceano.2021.03.002

• Języki publikacji: EN

Abstrakty

EN

In the Colorado River Delta, the interaction of tidal currents and sea-bottom sediment formed, in geological times, large-scale seabed patterns known as sandbanks. These patterns are oriented along the delta, almost parallel to the dominant tidal flow, with the bathymetry having an undulating character across the delta. Calculations and analysis showed that the interaction of tidal currents with the bathymetry causes velocity shears, faster flowing over the ridges than in the troughs. Kelvin-Helmholtz instabilities emerge from the velocity shear, and a large amount of suspended sediment makes the instabilities visible in satellite images. The physical and dynamic conditions allowed us to find an explanation for the existence of these Kelvin-Helmholtz instabilities. Since sandbanks have been observed in different seas such as the North Sea, The Gulf of Korea, the Gulf of Khambhat in India, the Jiangsu coast in China, the Persian Gulf, and Moreton Bay in Australia, the results suggest the existence of instabilities in these areas. Satellite images, intense tidal currents, undulating topography, and suspended sediment made it possible to explain the generation and identification of Kelvin-Helmholtz instabilities.

Słowa kluczowe

EN

Kelvin-Helmholtz instabilities; Colorado River Delta; tides; undulating topography; suspended sediment

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2021
• Tom: No. 63 (3)
• Strony: 321--328
• Opis fizyczny: Bibliogr. 25 poz., rys.

Twórcy

autor

Carbajal Noel

• San Luis Potosí Institute of Scientific Research and Technology, Mexico

autor

Vargas José Tuxpan

• San Luis Potosí Institute of Scientific Research and Technology, Mexico

autor

Rodríguez Juan Heberto Gaviño

• Centro Universitario de Investigaciones Bibliotecológicas (CUIB), University of Colima, Mexico

autor

Ley Yovani Montaño

• Institute of the Oceano Sciences and Limnology, The National Autonomous University of Mexico, Mexico

autor

León David Alberto Salas de

• Institute of the Oceano Sciences and Limnology, The National Autonomous University of Mexico, Mexico

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).