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首页> 外文期刊>Journal of oceanography >Intraannual variability of sea level around Tosa Bay
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Intraannual variability of sea level around Tosa Bay

机译：土佐湾附近海平面的年内变化

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摘要

Through analysis of monthly in situ hydrographic, tide gauge, altimetry and Kuroshio axis data for the years 1993–2001, the intraannual variability of sea level around Tosa Bay, Japan, with periods of 2–12 months is examined together with the intraannual variability of the Kuroshio south of the bay. It is shown that the intraannual variation of steric height on the slope in Tosa Bay can account for that of sea level at the coast around the bay as well as on this slope. It is found that the steric height (or sea level) variation on the slope in this bay is mainly controlled by the subsurface thermal variation correlated with the Kuroshio variation off Cape Ashizuri, the western edge of Tosa Bay. That is, when the nearshore Kuroshio velocity south of the cape is intensified [weakened] concurrently with the northward [southward] displacement of the current axis, temperature in an entire water column decreases [increases] simultaneously, mainly due to the upward [downward] displacement of isotherms, coincident with that of the main thermocline. It follows that the steric height (or sea level) decreases [increases].
机译：通过分析1993-2001年的月度原位水文，潮汐仪，测高仪和黑潮轴数据，研究了日本土佐湾周围2-12个月的海平面年内变化，以及日本海平面的年内变化。海湾以南的黑潮。结果表明，土佐湾斜坡上空间高度的年内变化可以解释该海湾周围海岸以及该斜坡上的海平面高度。发现该海湾斜坡上的空间高度（或海平面）变化主要受与地下土层热变化的控制，而地下热变化与土佐湾西端芦足岬角附近的黑潮变化有关。即，当海角以南的近岸黑潮速度与当前轴的向北[向南]位移同时增强[减弱]时，整个水柱中的温度同时降低[增加]，这主要是由于向上[向下]等温线的位移与主温跃线的位移一致。由此可见，空间高度（或海平面）降低了[增加]。

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