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热带海洋学报 >

2013 , Vol. 32 >Issue 6: 28 - 35

DOI: https://doi.org/10.11978/j.issn.1009-5470.2013.06.005

海洋水文学

丰、枯水期珠江河口水体交换的数值模拟

  • 裴木凤 ,
  • 李适宇 ,
  • 胡嘉镗 ,
  • 胡希声
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  • 1. 中山大学环境科学与工程学院, 广东 广州 510275; 2. 广东省环境污染控制与修复技术重点实验室, 广东 广州 510275; 3. 国家海洋局北海海洋环境监测中心站, 广西 北海 536000; 4. 国家海洋局南海环境监测中心, 广东 广州 510300
裴木凤(1985—), 女, 广东省信宜市人, 硕士, 主要从事水环境数值模拟与水环境管理方向研究。Email: hellpei@163.com

收稿日期: 2012-02-23

  修回日期: 2012-10-15

  网络出版日期: 2014-01-21

基金资助

广东省近岸海洋综合调查与评价(“908”专项)子课题(GD908-02-03); 海洋公益性行业科研专项经费项目(200805015)

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Simulation of the water exchange in the Pearl River Estuary during wet and dry seasons

  • PEI Mu-feng ,
  • LI Shi-yu ,
  • HU Jia-tang ,
  • HU Xi-sheng
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  • 1. School of Environmental Science and Engineering, Sun-Yat Sen University, Guangzhou 510275, China; 2. Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou 510275, China; 3. Marine Environmental Monitor Center of Beihai, State Oceanic Administration People’s Republic of China, Beihai 536000, China; 4. South China Sea Environment Monitoring Center, State Oceanic Administration People’s Republic of China, Guangzhou 510300, China

Received date: 2012-02-23

  Revised date: 2012-10-15

  Online published: 2014-01-21

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摘要

基于一、三维耦合的溶解态保守性物质对流-扩散模型, 计算了丰水期(1999年7月)和枯水期(2006年2月)珠江河口水体的平均停留时间。计算结果表明, 珠江河口的水体交换有明显的季节特征, 丰、枯水期珠江口的水体平均停留时间分别为8.9d和27.3d, 内伶仃洋和外伶仃洋分别为丰水期与枯水期水体交换最强与最弱的子区域。仅考虑潮汐时, 小潮时期珠江河口水体的平均停留时间小于大潮时期, 而综合径流、季风等影响因素后则与之相反。空间上丰、枯水期均表现为口门附近水体停留时间较短, 远离口门的水体停留时间较长。丰、枯水期珠江河口水体的平均停留时间均表现出从表层向底层递增的趋势, 丰水期的垂向差异大于枯水期。

关键词： 珠江河口; 水体交换; 停留时间; 耦合计算

本文引用格式

裴木凤 , 李适宇 , 胡嘉镗 , 胡希声 . 丰、枯水期珠江河口水体交换的数值模拟[J]. 热带海洋学报, 2013 , 32(6) : 28 -35 . DOI: 10.11978/j.issn.1009-5470.2013.06.005

Abstract

Coupled one- and three-dimensional advection-diffusion models of dissolved conservative tracer were used to simulate the average residence time of the Pearl River Estuary in July 1999 (wet season) and February 2006 (dry season). Results indicate that the average residence time shows significant variation between wet and dry seasons. The average residence time of the estuary is 8.9 days in wet season and 27.3 days in dry season. In both seasons, the water exchange is the strongest in inner Lindingyang and the weakest in outer Lindingyang. The residence time of the estuary is longer at the spring tide than at the neap tide; however, it generally acts reversely with river runoff and monsoon. Actually, the residence time is relatively shorter in the regions adjacent to the river outlets and relatively longer in the outer regions, and it increases with depth, with more evident difference in the vertical in wet season than in dry season.

Key words： Pearl River Estuary; water exchange; residence time; numerical simulation; coupled calculation

参考文献

HUANG X P, HUANG L M, YUE W Z. The characteristics of nutrients and eutrophication in the Pearl River Estuary, South China[J]. Mar Pollut Bull, 2003, 47: 30-36.
吴瑞贞, 马毅．近20a南海赤潮的时空分布特征及原因分析[J]. 海洋环境科学, 2008, 27 (1): 30-32.
YIN KEDONG, LIN ZHIFENG, KE ZHIYUAN. Temporal and spatial distribution of dissolved oxygen in the Pearl River Estuary and adjacent coastal waters[J]. Cont Shelf Res, 2004, 24: 1935-1948.
黄小平, 田磊, 彭勃, 等．珠江口海域环境污染研究进展[J]. 热带海洋学报, 2010, 29 (1): 1-7.
王宏, 陈丕茂, 贾晓平, 等．海水交换能力的研究进展[J]. 南方水产, 2008, 4 (2): 75-80.
朱小兵, 高抒, 陈妙红, 等．海南岛博鳌港水体交换的初步研究[J]．热带海洋学报, 2003, 22 (3): 71-77.
夏华永, 李绪录, 韩康．大鹏湾环境容量研究Ⅰ: 自净能力模拟分析[J]. 中国环境科学, 2011, 31 (12): 2031-2038.
韩康, 张存智, 张砚峰, 等．大连湾潮交换能力的数值研究[J]. 海洋通报, 1996, 15 (2): 86-91.
LIU ZHE, WEI HAO, LIU GUANGSHAN, et al. Simulation of water exchange in Jiaozhou Bay by average residence time approach[J]. Estuar Coast Shelf S, 2004, 61 (1): 25-35.
YUAN D, LIN B, FALCONER R A. A modelling study of residence time in a macro-tidal estuary[J]. Estuar Coast Shelf S, 2007, 71: 401-411.
GONG WENPING, SHEN JIAN, CHO KYOUNGHO, et al. A numerical model study of barotropic subtidal water exchange between estuary and subestuaries (tributaries) in the Chesapeake Bay during northeaster events[J]. Ocean Model, 2009, 26: 170-189.
林洪瑛, 韩舞鹰, 马克美．珠江口河口湾水交换初步探讨[J]. 科学通报, 1990, 5: 366-369.
包芸, 来志刚, 刘欢．珠江河口一维河网、三维河口湾水动力连接计算[J] . 热带海洋学报, 2005, 24 (4): 67-72.
罗琳, 李适宇, 王东晓．珠江河口夏季缺氧现象的模拟[J] . 水科学进展, 2008, 19 (5): 729-735.
JOS V G, KLAAS-JAN V H, DIRK S, et al. 珠江三角洲水质模型[R]. 香港: 香港特别行政区环境保护署, 2008: 26-28.
胡嘉镗, 李适宇．珠江三角洲一维盐度与三维斜压耦合模型[J]. 水利学报, 2008, 39 (11): 1174-1182.
胡嘉镗, 李适宇．珠江三角洲河网与河口夏季水沙通量的模拟[J]. 水利学报, 2009, 40 (11): 1290-1298.
HU JIATANG, Li SHIYU. Modeling the mass fluxes and transformations of nutrients in the Pearl River Delta, China[J]. J Marine Syst, 2009, 78: 146-167.
张恒, 李适宇．基于改进的RCA水质模型对珠江口夏季缺氧及初级生产力的数值模拟[J]. 热带海洋学报, 2010, 29 (1): 20-31.
SHU YEQIANG, WANG DONGXIAO, ZHU JIANG, et al. The 4-D structure of upwelling and Pearl River plume in the northern South China Sea during summer 2008 revealed by a data assimilation model[J]. Ocean Model, 2011, 36: 228-241.
张二俊, 张东升, 李挺．河网非恒定流的三级联合解法[J]. 华东水利学院学报, 1982, 1 (11): 1-13.
BLUMBERG A F. A primer for ECOMSED user manual: version 1.3[R]. Mahwah, New Jersey: Hydro Qual Inc, 2002: 6-21.
薛惠洁, 柴扉, 王丽娅, 等．珠江口及其邻近海域环流模式结构[G]//中国海洋学文集: 南海海流数值计算及中尺度特征研究. 北京: 海洋出版社, 2001: 138-151.
杨阳, 孟强, 夏华永, 等．2006年夏季珠江冲淡水扩展及生态响应[J] . 热带海洋学报, 2010, 29 (6): 15-21.
林洪瑛, 刘胜, 韩舞鹰．珠江口底层海水季节性缺氧现象及其引发CTB的潜在威胁[J]. 湛江海洋大学学报, 2001, 21 (增刊): 25-29.

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