<紀要論文>
CHARACTERISTIC FEATURES OF THE KUROSHIO WITH AND WITHOUT THE COLD WATER MASS SOUTH OF ENSHUNADA

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概要 The data of GEK measurements for these eighteen years and serial observations for these fifty years have been analyzed statistically in order to clarify characteristic features of the Kuroshio with an...d without the Cold Water Mass south of Enshunada. The warm eddy south of the Kuroshio between 133° and 138° E has been delineated clearly. The eddy for the period when the Cold Water Mass is absent is larger in scale and more extensive in the fall of isotherms than that for the period when it is present. It has been found that a remarkable difference in the path of the Kuroshio east of Honshu is seen in a statistical sense between the two modes of the Kuroshio meander: when the Cold Water Mass is absent the path of the Kuroshio broadens and fluctuates to the north and south, while the path is confined in a narrow zone when it is present. The volume transport of the Kuroshio is about 50xl0^6㎥/sec at the region south or southeast of Shikoku, irrespective of whether the Cold Water Mass is present or absent. While the transport decreases gradually toward the east from 50x10^6㎥/sec to 30x10^6㎥/sec when the Cold Water Mass is present, the transport keeps roughly a constant value of 50x10^6㎥/sec when it is absent. Geographical examination of detailed features of the Kuroshio meander and the Cold Water Mass south of Enshunada suggests a close dynamical relationship between the kuroshio and the bottom topography. Vertical structures of temperature fields have been presented in Appendix.続きを見る
目次 1. Introduction
2. Data and data analysis
3. Surface currents of the Kuroshio
4. Volume transport of the Kuroshio
5. The Kuroshio meander and the Cold Water Mass
6. The warm eddy
7. Concluding remarks

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登録日 2022.12.12
更新日 2024.10.22