On the hydrographic response to transient meteorological disturbances

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Abstract
The response to transient forcing in a hydrographic system like the Baltic is considered. We find that under quite general conditions the baroclinic response is confined to a narrow coastal region while the response in the main part of the basin is essentially barotropic. The response is analysed quantitatively under somewhat more stringent conditions using a boundary layer type approach. We find that the barotropic large scale low frequency motions follow contours of constant depth, a feature which might be accessible to empirical verification. The baroclinic coastal response is found to be confined to a region of width 5–10 km (in the Baltic). If the dissipation is sufficiently weak, internal Kelvin waves travelling in a counter clockwise direction may be excited in the coastal region. DOI: 10.1111/j.2153-3490.1972.tb01545.x

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