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Upwelling induced by periodic wind stress

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Il Nuovo Cimento C

Summary

In this paper we exhibit analytical solutions for the upwelling and the coastal currents induced by periodic wind stress. We present solutions for an infinite deep ocean and for a shallow ocean. There is upwelling only when the period of the forcing is longer than the inertial period,i.e. f>ω. When the period of the forcing is shorter than the inertial period,i.e. f<ω, there is not upwelling, but propagating waves are excited.

Riassunto

In questo lavoro presentiamo delle soluzioni analitiche per l'upwelling e le correnti costiere indotte da un vento periodico nel tempo. Presentiamo le soluzioni relative ad un oceano di profondità finita e di profondità infinita. L'upwelling è presente solo quando il periodo del vento è piú lungo del periodo inerziale,i.e. f>ω. Quando il periodo del vento è piú breve del periodo inerziale,f<ω, non c'è upwelling, ma propagazione di onde.

Резюме

В этой работе мы предлагаем аналитическое решение для явления «апвелинга» и прибрежных течений, индуцированных периодическими ветровыми воздействиями. Мы приводим решения для бесконечно глубокого океана и для мелкого океана. Явление «апвелинга» существует только тогда, когда период воздействия больше, чем инерциальный период, т.е.f>ω. Когда период воздействия короче, чем инерциальный период, т.е.f<ω, явление «апвелинга» не существует и возбуждаются распространяющиеся волны.

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Dalu, G.A., Baldi, M. & Lavalle, C. Upwelling induced by periodic wind stress. Il Nuovo Cimento C 11, 577–587 (1988). https://doi.org/10.1007/BF02507002

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  • DOI: https://doi.org/10.1007/BF02507002

PACS 92.10

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