A study of heat transport in the sea in south of Honshu

我们的工作对象是研究热收支和机制，维持热含量的表面混合层在本州南部的海洋。利用气象和海洋资料，得到了混合层的热收支和热含量。本文通过流速和温度的测量探讨了这一机理，并于夏季在鹿儿岛湾的一个现场进行了一个系留有流速计和温度计的水面浮标的试验。我们利用8911号台风的大风对地面混合层的发展过程进行了研究。半天内混合层厚度增加15 ~ 20 m。在相同的时间内，混合层的温度降低了4 ℃。距海面40 m处的温度上升了6 ° C。St.T（29 ° N，135 ° E）水面浮标系统的速度和温度测量因8931号台风的逼近而被迫将测量周期从8天缩短到仅20小时。混合层的温度 ...更多信息 叶的垂直分布呈倒置，20小时后叶稍有下降。季节性和主要的温跃层随时间变化复杂。各温跃层的温度变化有着密切的联系。但在主温跃层中，和之间的相关性很小。沿沿着速度变化也几乎没有垂直相关性。用B螺旋线法估算了混合层底部的垂直速度为1.9 × 10 ~（-1）。在1961 ~ 1985年的25年间，本州南部某些地区的近地层热含量随时间的变化有轻微的增加。热含量变化的优势周期为8 ~ 10年。南西群岛附近海表温度的季节变化受黑潮热量输送的影响，季节变化的位相沿沿着滞后于黑潮。1980年以后，这种不寻常的热交换也发生了多次。少

Objects of our work are studies of heat budget and of mechanism maintaining heat content in a surface mixed layer of the sea in south of Honshu. The heat budget and the heat content in the mixed layer are obtained of meteorological and oceanorographical data. The mechanism is approached by measurements of Velocity and temperature.A test of a surface buoy moored to current meters and thermometers was carried out at a site in the Kagoshima bay in the summer. We had a chance to research on a process of developing of a surface mixed layer by strong wind of Typhoon 8911. The thickness of the mixed layer increases by 15m to 20m during half a day. The temperature in the mixed layer lowers by 4ﾟC for same period. The temperature at 40m from the sea surface rises by 6ﾟC.The measurements of velocity and temperature by the surface buoy system at St.T(29ﾟN,135ﾟE) were forced by approaching of Typhoon 8931 to reduce the measurement period from 8 days to only 20 hours.The temperature in the mixed la … More yer, Whose vertical distribution is keeping upside down, is slightly and gradually lowering for 20 hours. The seasonal and the main thermochines varies complexy with time. The temperature variations in each thermochine closely relate with each other. But there is little correlation between and in the main thermochine. There is also little vertical correlation along velocity variations. Vertical velocity at the bottom of the surface mixed layer is estimated at 1.9x 10 by B-spiral method.Heat content in surface layer of some regions in south of Honshu very slightly increases with time during 25 years between 1961 and 1985. Predominant period of the variations of the heat content is 8 to 10 years. Seasonal variations of SST around the Nansei Islands is influenced by the heat transport of Kuroshio and the phase of seasonal variations lags behind along Kuroshio.In the sea around the Islands, Unusual heat exchange between the sea and the atmosphere takes place in winter of 1963. The unusual heat exchange also takes place many times after 1980. Less