Time Variation of Vorticity in the Sea

Abstract

It was already verified that the absolute vorticity is conserved in the sea. The time variation of vorticity ∂η/∂t, is of the order of 10^-11sec^-2, and the time range for prediction must be shorter than 30months. So we can usefully predict sea conditions after two or three months by numerical method, but a winder area must be observed for this purpose.