地理学报 ›› 1997, Vol. 64 ›› Issue (S1): 161-169.doi: 10.11821/xb1997S1018

• 论文 • 上一篇    下一篇

地理信息系统支持下东中国海潮波系统的模拟研究

林珲, 闾国年, 宋志尧, 王杰臣, 陈钟明, 施毅   

  1. 1. 香港中文大学,香港;
    2. 南京师范大学,南京 210097;
    3. 河海大学,南京210097
  • 出版日期:1997-12-15 发布日期:1997-12-15
  • 基金资助:
    香港政府大学基金(CUHK318/95H)和国家教委优秀青年教师基金研究成果的一部分

STUDY ON MODELING THE TIDE WAVE SYSTEM OF EAST CHINA SEA WITH GIS

Hui Lin, Lu Guonian, Song Zhiyao, Wang Jiechen, Chen Zhongmin, Shi Yi   

  1. 1. Department of Geography, the Chinese University of Hong Kong, Hong Kong;
    2. Nanjing Normal University, Nanjing 210097;
    3. Hehai University, Nanjing 210097
  • Online:1997-12-15 Published:1997-12-15

摘要: 本文的研究是在地理信息系统(GIS)、海洋流体动力学模型的支持下,对东中国海区现代潮汐潮流系统特征、潮波系统的形成机制和演变过程的系统研究。通过高分辨率的数值模拟,作者发现了一些前人没有发现的现象;证明在一定的入射潮波条件下,岸线形态和位置对潮波系统的形成起主要作用;系统地恢复了末次冰期最盛时期以来30个时期东中国海的潮波系统。另外作者还探讨了有关GIS与潮汐数值模拟系统及海水运动可视化系统的集成问题。

关键词: 潮波系统, 东中国海, 数值模拟, 地理信息系统

Abstract: This paper describes the systematic research on Tide Dynamic System under the support of Geographic Information System and ocean fluid dynamics model. Through the high resolu-tion numerical simulation, we found some previously unreported phenomena such as a low tide amplitude zone of M2 Constituent nearing Zhoushan isle, a low tide amplitude zone of K1 Con-stituent nearing Taiwan isle, and circular flow point band. The results of this research also show that the formation of tide wave system are affected by sea bottom friction coefficient, to-pography under water and shore line morphology. The change of shore line morphology and huge change of topography under water play an important role in the tide wave system. Under specified conditions on input tide wave, shore line morphology has a dominant impact on the formation of the tide wave system. With the systematically reconstructed sea level and the coast change of thirty periods since full period of the last glacier, the evolution process of tide wave system of East China Sea was simulated. Based on the simulation analysis of relationships among topography, shore line and tide flow, the conclusion of this study shows that the char-acteristic of tide dynamic system is a dominant influencing factor on the formation of large scale sand ridge clusters. In this paper, the system integration of geographic information system, tide numerical simulation system and tide movement visualization system are discussed as an example for related studies.

Key words: tide system, East China Sea, numerical simulation, GIS

中图分类号: 

  • P731