It became clear that during the rainy season the region considered here is a source region of kinetic energy, and a large surplus of kinetic energy is exported across the boundary to the central Pacific. The release of kinetic energy is directly associated with the processes of sinking of cold air over the northern Japan Sea and of ascending of warm air in the region where subtropical jet stream prevails. As for the available potential energy, however, the region in question is a sink region.

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... e import of available potential energy is mainly accomplished by two prevailing wind systems, i.e., SW-and SE-monsoon. Journ. Met. Soc. Japan The Energy Budget over the Ear East during the Rainy Season 85