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Journal of Tropical Oceanography >

2016 , Vol. 35 >Issue 2: 10 - 18

DOI: https://doi.org/10.11978/2015034

Marine Hydrography

Three-dimensional numerical simulation of saltwater intrusion into the Humen estuary based on FVCOM

  • LIU Zufa ,
  • GUAN Shuai ,
  • ZHANG Ganhao ,
  • DING Bo ,
  • LIN Yingyan ,
  • ZHA Xini
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  • 1. Center for Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, China; 2. Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong Higher Education Institutes, Guangzhou 510275, China

Received date: 2015-03-05

  Revised date: 2015-08-11

  Online published: 2016-02-29

Supported by

The National Natural Science Foundation of China (41301627)

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Abstract

An unstructured grid finite-volume coastal ocean model (FVCOM) was applied to simulate the saltwater intrusion from Lingdingyang into the Humen estuary. Measurements of water level and salinity at multiple stations obtained in February 2001 were used for model calibration and verification, aiming at the hydrodynamic characteristics and spatiotemporal variation of salinity. The results showed that 1) the correlation coefficients between the predicted and measured water level exceeded 0.93 with a mean absolute bias less than 0.1 m, while the relative error of the simulated salinity was within 10%; 2) at Station Dahu, the flow direction in the surface layer was consistent with that in the bottom layer most of the time, but there was apparent salinity gradient in the vertical. However, for Station Zhangpeng, opposite flow directions between the surface and bottom layers occurred repeatedly while the salinity was more uniform vertically; and 3) the maximum distance of saltwater intrusion was well simulated. The intrusion distance as well as the strength at spring tide was greater than that at neap tide in the Humen estuary, and saltwater wedge movement was significantly affected by the tidal strength.

Key words： saltwater intrusion; numerical simulation; finite-volume coastal ocean model (FVCOM); Humen

Cite this article

LIU Zufa , GUAN Shuai , ZHANG Ganhao , DING Bo , LIN Yingyan , ZHA Xini . Three-dimensional numerical simulation of saltwater intrusion into the Humen estuary based on FVCOM[J]. Journal of Tropical Oceanography, 2016 , 35(2) : 10 -18 . DOI: 10.11978/2015034

References

[1] 包芸, 任杰, 2005. 伶仃洋盐度高度层化现象及盐度锋面的研究[J]. 水动力学研究与进展, 20(6): 89–95. BAO YUN, REN JIE, 2005. Numerical simulation of high resolution on the phenomenon of saline stratification in LinDinYang [J]. Journal of Hydrodynamics, 20(6): 89–98 (in Chinese).
[2] 陈水森, 方立刚, 李宏丽, 等, 2007. 珠江口咸潮入侵分析与经验模型—以磨刀门水道为例[J]. 水科学进展, 18(5): 751–755. CHEN SHUISEN, FANG LIGANG, LI HONGLI, et al, 2007. Saltwater intrusion analysis and experiential model for Pearl River estuary, south China: A case study in Modaomen watercourse [J]. Advances in Water Science, 18(5): 751–755 (in Chinese).
[3] 程香菊, 詹威, 郭振仁, 等, 2012. 珠江西四口门盐水入侵数值模拟及分析[J]. 水利学报, 43(5): 554–563. CHENG XIANGJU, ZHAN WEI, GUO ZHENREN, et al, 2012. Numerical simulation and analysis of saltwater intrusion to four western watercourses of Pearl River estuary [J]. Journal of Hydraulic Engineering, 43(5): 554–563 (in Chinese).
[4] 孔兰, 陈晓宏, 刘斌, 等, 2011. 咸潮影响下磨刀门水道取淡时机初探[J]. 水资源保护, 27(6): 24–28. KONG LAN, CHEN XIAOHONG, LIU BIN, et al, 2011. A preliminary study on fresh water extraction time under influence of salt tide in Modaomen Channel [J]. Water Resources Protection, 27(6): 24–28 (in Chinese).
[5] 赖荣康, 2011. 珠海地区咸潮影响因子统计与分析[D]. 青岛: 中国海洋大学: 1–4. LAI RONGKANG, 2011. Impact factor statistics and analysis of saltwater intrusion in the Pearl River region [D]. Qingdao: Ocean University of China: 1–4 (in Chinese).
[6] 刘德地, 陈晓宏, 2007. 基于偏最小二乘回归与支持向量机耦合的咸潮预报模型[J]. 中山大学学报(自然科学版), 46(4): 89–92. LIU DEDI, CHEN XIAOHONG, 2007. Model for prediction of saltwater intrusions based on coupling of support vector machine and partical least square method [J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 46(4): 89–92 (in Chinese).
[7] 刘杰斌, 包芸, 2008. 磨刀门水道枯季盐水入侵咸界运动规律研究[J]. 中山大学学报(自然科学版), 47: 122–125. LIU JIEBIN, BAO YUN, 2008. The movement of saltwater intrusion border of Modaomen Channel in the dry season[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 47: 122–125 (in Chinese).
[8] 罗琳, 陈举, 杨威, 等, 2010. 2007~2008年冬季珠江三角洲强咸潮事件[J]. 热带海洋学报, 29(6): 22–28. LUO LIN, CHEN JU, YANG WEI, et al, 2010. An intensive saltwater intrusion in the Pearl River Delta during the winter of 2007-2008 [J]. Journal of Topical Oceanography, 29(6): 22–28 (in Chinese).
[9] 齐继峰, 曹圣山, 郭可采, 等, 2013. 基于FVCOM的獐子岛附近海域三维潮汐潮流数值模拟[J]. 海洋与湖沼, 44(6): 1469–1478. QI JIFENG, CAO SHENGSHAN, GUO KECAI, et al, 2013. 3-D numerical simulation of tidal field near Zhangzi Island, NE China[J]. Oceanologia et Limnologia Somoca, 11(6): 1469– 1478 (in Chinese).
[10] 宋德海, 鲍献文, 朱学明, 2009. 基于FVCOM的钦州湾三维潮流数值模拟[J]. 热带海洋学报, 28(2): 7?14. SONG DEHAI, BAO XIANWEN, ZHU XUEMING, 2009. Three-dimensional numerical simulation of tidal current in Qinzhou Bay[J]. Journal of Topical Oceanography, 28(2): 7–14 (in Chinese).
[11] 宋晓飞, 石荣贵, 孙羚晏, 等, 2014. 珠江口磨刀门盐水入侵的现状与成因分析[J]. 海洋通报, 33(1): 7–15. SONG XIAOFEI, SHI RONGGUI, SUN LINGYAN, et al, 2014. Status and cause of saltwater intrusion in Modaomen, Pearl River estuary [J]. Marine Science Bulletin, 33(1): 7–15 (in Chinese).
[12] 唐兆民, 倪培桐, 任杰, 等, 2007. 珠江河口虎门的地貌动力学研究[J]. 热带海洋学报, 26(2): 34–37. TANG ZHAOMIN, NI PEITONG, REN JIE, et al, 2007. A study on morphodynamics of Humen in Zhujiang River estuary [J]. Journal of Topical Oceanography, 26(2): 34–37 (in Chinese).
[13] 杨清书, 欧素英, 谢萍, 等, 2004. 珠江虎门潮汐水道水体中多环芳烃的分布及季节变化[J]. 海洋通报, 26(6): 37–48. YANG QINGSHU, OU SUYING, XIE PING, et al, 2004. Distribution, composition and sources of polycyclic aromatic hydro?carbons in the surface water of the Pearl River Artery Estuary[J]. Marine Science Bulletin, 26(6): 37–48 (in Chinese).
[14] 尹小玲, 张洪武, 方红卫, 2008. 枯季磨刀门水道小潮活动与压咸控制分析[J]. 水动力学研究与进展, 33(5): 554–559. YIN XIAOLING, ZHANG HONGWU, FANG HONGWEI, 2008. Hydrodynamic analysis and control on saline water in Modaomen waterway during the dry season [J]. Chinese Journal of Hydrodynamics, 33(5): 554–559 (in Chinese).
[15] 章文, 刘丙军, 辛彦博, 等, 2013. 珠江河口区盐度变化周期特征分析——以磨刀门水道为例[J]. 热带地理, 33(1): 28–33. ZHANG WEN, LIU BINGJUN, XIN YANBO, et al, 2013. Analysis of the characters of saltwater intrusion in the Pearl River estuary based on salinity data of Maodaomen waterway[J]. Tropical Geography, 33(1): 28–33 (in Chinese).
[16] AN Q, WU Y Q, TAYLOR S, et al, 2009. Influence of the three gorges project on saltwater intrusion in the Yangtze River estuary [J]. Environmental Earth Sciences, 56: 1679–1686.
[17] CHAPMAN D C, KO D S, PRELLER R H, 2004. High-resolution numerical modeling study of the subtidal circulation in the northern South China Sea [J]. IEEE Journal of Oceanic Engineering, 29(4): 1087–2004.
[18] CHEN C S, BEARDSLEY R C, COWLES G, 2006. An unstructured grid, finite-volume coastal ocean model: FVCOM user manual[M]. USA: University of Massachusetts-Dartmouth: 38–39.
[19] CHEN C S, HUANG H S, BEARDSLE R C, 2007. A finite volume numerical approach for coastal ocean circulation studies: Comparisons with finite difference models [J]. Journal of Geophysical Research, 112: 1–34.
[20] MCCORQUODALE J A, GEORGIOU I, 2004. Modelling freshwater inflows in a shallow lake [J]. Archives of Hydro- engineering and Environmental Mechanics, 51(1): 3–12.
[21] YANG Z Q, KHANGAONKAR T, 2009. Modeling tidal circulation and stratification in Skagit River estuary using an unstructured ocean model [J]. Ocean Modeling, 28(1/2/3): 34–49.
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