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中国主要入海河流冲淡水扩展特性联合数值模拟研究

严棋 吴辉 朱建荣

严棋, 吴辉, 朱建荣. 中国主要入海河流冲淡水扩展特性联合数值模拟研究[J]. 华东师范大学学报(自然科学版), 2015, (4): 87-96. doi: 10.3969/j.issn.1000-5641.2015.04.010
引用本文: 严棋, 吴辉, 朱建荣. 中国主要入海河流冲淡水扩展特性联合数值模拟研究[J]. 华东师范大学学报(自然科学版), 2015, (4): 87-96. doi: 10.3969/j.issn.1000-5641.2015.04.010
YAN Qi, WU Hui, ZHU Jian-rong. Numerical simulation on the major river plumes in China seas[J]. Journal of East China Normal University (Natural Sciences), 2015, (4): 87-96. doi: 10.3969/j.issn.1000-5641.2015.04.010
Citation: YAN Qi, WU Hui, ZHU Jian-rong. Numerical simulation on the major river plumes in China seas[J]. Journal of East China Normal University (Natural Sciences), 2015, (4): 87-96. doi: 10.3969/j.issn.1000-5641.2015.04.010

中国主要入海河流冲淡水扩展特性联合数值模拟研究

doi: 10.3969/j.issn.1000-5641.2015.04.010
基金项目: 

国家重点基础研究发展规划(2011CB409801);河口海岸学国家重点实验室科研业务费(2013RCDW01)

详细信息
    作者简介:

    严棋,男,硕士研究生,从事河口海岸动力学研究.Email:yanqi12390@126.com.

    通讯作者:

    吴辉,男,副教授,研究方向为河口海岸学.Email:hwu@sklec.ecnu.edu.cn.

  • 中图分类号: P731.2

Numerical simulation on the major river plumes in China seas

  • 摘要: 本研究建立了一个涵盖渤、黄、东和南海的数值模型,综合考虑多种动力因子,模拟研究了中国主要入海河流的冲淡水扩展机制和扩展范围.数值实验结果表明,冲淡水对外海盐度的影响有着明显的地域差异.在渤海区域,虽然淡水汇入量较小,但由于该区域为半封闭海域且水深较浅,冲淡水不易往外部海域扩展,因此使该区域盐度常年低于32psu,表现为低盐状态.同样的,黄海由于自身半封闭的地形,外加上大量长江冲淡水的汇入,也处于低盐状态,盐度常年低于33psu.东海盐度变化主要取决于长江冲淡水扩展的范围,具有显著的季节性变化.北南海区域,在琼州海峡以东,珠江冲淡水控制着外海盐度的变化.由于珠江冲淡水离岸扩散较弱,故该低盐度区常年被50 m等深线所包裹.在琼州海峡以西,红河冲淡水控制着外海盐度变化.
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出版历程
  • 收稿日期:  2014-09-09
  • 刊出日期:  2015-07-25

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