| APPLICATION OF THE CLUSTERING METHOD IN ANALYSING SHALLOW WATER MASSES AND MODIFIED WATER MASSES IN THE HUANGHAI SEA AND EAST CHINA SEA |
| |
| 作者姓名： | Su Yusong Yu Zuxiang and Li Fengqi |
| |
| 作者单位： | Shandong College of Oceanology，Qingdao |
| |
| 摘 要： | The idea of modified water masses is introduced and a cluster analysis is used for determining the boundary of modified water masses and its variety in the shallow water area of the Huanghai Sea (Yellow Sea) and the East China Sea. According to the specified standards to make the cluster, we have determined the number and boundary of the water masses and the mixed zones.The results obtained by the cluster method show that there are eight modified water masses in this area. According to the relative index of temperature and salinity,the modified water masses are divided into nine different characteristic parts. The water, masses may also be divided into three salinity types. On the TS-Diagram, the points concerning temperature and safinity of different modified mater masses are distributed around a curve, from which the characteristics of gradual modification may be embodied. The variation ranges of different modified water masses are all large, explaining the intensive modification of water masses in th
|
APPLICATION OF THE CLUSTERING METHOD IN ANALYSING SHALLOW WATER MASSES AND MODIFIED WATER MASSES IN THE HUANGHAI SEA AND EAST CHINA SEA |
| |
| Su Yusong,Yu Zuxiang and Li Fengqi.APPLICATION OF THE CLUSTERING METHOD IN ANALYSING SHALLOW WATER MASSES AND MODIFIED WATER MASSES IN THE HUANGHAI SEA AND EAST CHINA SEA[J].Periodical of Ocean University of China,1989(Z1). |
| |
| Authors: | Su Yusong Yu Zuxiang and Li Fengqi |
| |
| Abstract: | The idea of modified water masses is introduced and a cluster analysis is used for determining the boundary of modified water masses and its variety in the shallow water area of the Huanghai Sea (Yellow Sea) and the East China Sea. According to the specified standards to make the cluster, we have determined the number and boundary of the water masses and the mixed zones.The results obtained by the cluster method show that there are eight modified water masses in this area. According to the relative index of temperature and salinity,the modified water masses are divided into nine different characteristic parts. The water, masses may also be divided into three salinity types. On the TS-Diagram, the points concerning temperature and safinity of different modified mater masses are distributed around a curve, from which the characteristics of gradual modification may be embodied. The variation ranges of different modified water masses are all large, explaining the intensive modification of water masses in this area. The increase of temperature and the decrease of salinity in warm season and the reversal of them in cold season are regarded as the characteristics of modification of the sea water in all the Huanghai Sea and the East China Sea. All the seasonal water masses undergo a process of formation and elimination.The correlations of the modified water masses with the marine environment are discussed in this paper. The modification of water masses is created by the combinative actions of thermodynamic and dynamic factors. Through the analysis of modified water masses, we believe that the thermodynamic factors play a major part in the modification of water masses in this area. The correlations between the tonguelike distribution of the boundary of modified water masses and the current direction are very apparent, which can be used as a collateral evidence for analyzing circulation. Finally, the relationships between the modified water masses and the central fishing grounds at bottom layer are illustrated. |
| |
| Keywords: | water mass modified water mass the Huanghai Sea the East China Sea clustering method the modified regression curve |
| 本文献已被 CNKI 等数据库收录！ |
