The upwelling driven by the Zhujiang River runoff in 2006 summer

Xia Huayong; Liu Changjian; Wang Dongxiao

doi:10.3969/j.issn.0253-4193.2018.07.004

Article Contents

Article Navigation > Haiyang Xuebao > 2018 > 40(7): 43-54

Xia Huayong, Liu Changjian, Wang Dongxiao. The upwelling driven by the Zhujiang River runoff in 2006 summer[J]. Haiyang Xuebao, 2018, 40(7): 43-54. doi: 10.3969/j.issn.0253-4193.2018.07.004

Citation:

Xia Huayong, Liu Changjian, Wang Dongxiao. The upwelling driven by the Zhujiang River runoff in 2006 summer[J]. Haiyang Xuebao, 2018, 40(7): 43-54. doi: 10.3969/j.issn.0253-4193.2018.07.004

Xia Huayong, Liu Changjian, Wang Dongxiao. The upwelling driven by the Zhujiang River runoff in 2006 summer[J]. Haiyang Xuebao, 2018, 40(7): 43-54. doi: 10.3969/j.issn.0253-4193.2018.07.004

Citation:

Xia Huayong, Liu Changjian, Wang Dongxiao. The upwelling driven by the Zhujiang River runoff in 2006 summer[J]. Haiyang Xuebao, 2018, 40(7): 43-54. doi: 10.3969/j.issn.0253-4193.2018.07.004

PDF( 9718 KB)

The upwelling driven by the Zhujiang River runoff in 2006 summer

doi: 10.3969/j.issn.0253-4193.2018.07.004

1.
South China Sea Marine Forecasting Center, State Oceanic Administration, Guangzhou 510300, China;Key Laboratory of Technology and Application for Safeguarding of Marine Rights and Interests, State Oceanic Administration, Guangzhou 510300, China
2.
Key Laboratory of Technology and Application for Safeguarding of Marine Rights and Interests, State Oceanic Administration, Guangzhou 510300, China;South China Sea Marine Engineering Surveying Center, State Oceanic Administration, Guangzhou 510300, China
3.
South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China

Received Date: 2017-09-10
Rev Recd Date: 2017-12-22

Abstract

Abstract

A summer hydrologic survey in the Zhujiang River Estuary and its adjacent seas was performed in July and August, 2006. The survey data show that while a part of the diluted water from the Zhujiang River is transported eastwards by the overlying southwesterly monsoon, most of the diluted water is transported westwards off the coast of western Guangdong Province, and there is upwelling underlying the westwards spreading diluted water. In the existing modelling studies of the upwelling in the northern South China Sea, the upwelling does not occur off the Zhujiang River Estuary under the southwesterly monsoon, which demonstrates that the southwesterly monsoon should not be the major driving force of the upwelling off the Zhujiang River Estuary. As indicated by the distribution of sea water salinity and temperature, time series of currents from mooring observations and current fields from shipboard ADCP measurements, the major formation mechanism of upwelling ought to be:(1) the vertical gravitational circulations off the river mouth driven by the southwards spreading discharges; (2) the bottom boundary Ekman effect of the eastward coastal current beneath the density transition layer; and (3) the effect of mesoscale cool eddies among the diluted water bulges off the river mouths.
- Zhujiang River Estuary,
- diluted water spreading,
- upwelling,
- vertical gravitational circulation

FullText(HTML)

References(29)

References

管秉贤,陈上及.中国近海的海流系统[R].青岛:中国科学院海洋研究所,1964. Guan Bingxian, Chen Shangji. Report on nearshore current systems in China Sea[R]. Qingdao:Institue of Oceanography, Chinese Academy of Sciences,1964.

曾流明.粤东沿岸上升流迹象的初步分析[J].热带海洋,1986,5(1):68-73. Zeng Liuming. A preliminary analysis of indicators of offshore upwelling off eastern Guangdong[J]. Tropical Oceanology, 1986, 5(1):68-73.

于文泉.南海北部上升流的初步探讨[J].海洋科学,1987(6):7-10. Yu Wenquan. A preliminary approach of the upwelling for the Northern South China Sea[J]. Marine Sciences, 1987(6):7-10.

韩舞鹰,马克美.粤东沿岸上升流的研究[J].海洋学报,1988,10(1):52-59. Han Wuying, Ma Kemei. A study on the upwelling off the coast of eastern Guangdong[J]. Haiyang Xuebao, 1988, 10(1):52-59.

韩舞鹰,王明彪,马克美.我国夏季最低表层水温海区——琼东沿岸上升流区的研究[J].海洋与湖沼, 1990,21(3):167-275. Han Wuying, Wang Mingbiao, Ma Kemei. On the lowest surface water temperature area of China Sea in summer-The upwelling along the east coast of Hainan Island[J]. Oceanologia et Limnologia Sinica, 1990, 21(3):167-275.

洪启明,李立.粤东陆架区夏季的上升流[J].台湾海峡,1991,10(3):271-277. Hong Qiming, Li Li. A study of upwelling over continental shelf off eastern Guangdong[J]. Journal of Oceanography in Taiwan Strait, 1991, 10(3):271-277.

邓松,钟良欢,王名文.琼海沿岸上升流及其与渔场的关系[J].台湾海峡,1995,14(1):51-56. Deng Song, Zhong Huanliang, Wang Mingwen. On relation between upwelling off Qionghai and fishery[J]. Journal of Oceanography in Taiwan Strait, 1995, 14(1):51-56.

伍伯瑜.珠江口以西陆架海域环流研究Ⅱ[J].台湾海峡,1990,9(1):14-21. Wu Boyu. A study on the circulation in shelf waters west to Zhujiang River mouth Ⅱ, upwelling[J]. Journal of Oceanography in Taiwan Strait, 1990, 9(1):14-21.

李立.珠江口以西陆架夏季上升流的研究[J].台湾海峡,1990,9(4):338-346. Li Li. A study on the summer upwellings in shelf waters west to Zhujiang River mouth[J]. Journal of Oceanography in Taiwan Strait, 1990, 9(4):338-346.

吴林兴,林洪瑛.粤东陆架边缘水域夏季上升流初析[J].热带海洋,1990,9(4):16-23. Wu Linxing, Lin Hongying. Preliminary analysis for the summer upwelling in the continental shelf margin waters of east Guangdong[J]. Tropical Oceanology, 1990, 9(4):16-23.

吴日升,李立.南海上升流研究概述[J].台湾海峡,2003,22(2):269-277. Wu Risheng, Li Li. Summarization of study on upwelling system in the South China Sea[J]. Journal of Oceanography in Taiwan Strait, 2003, 22(2):269-277.

朱佳,胡建宇,陈照章,等.珠江口以外海域温、盐度的断面分布特征-2001年5月与2002年11月航次[J].厦门大学学报:自然科学版,2005,44(5):680-683. Zhu Jia, Hu Jianyu, Chen Zhaozhang, et al. Analysis on sectional characteristics of temperature and salinity off the Zhujiang River Estuary-During the cruises of May 2001 and November 2002[J]. Journal of Xiamen University:Natural Science, 2005, 44(5):680-683.

曾淦宁,胡建宇,洪华生,等.西南季风不同阶段南海北部珠江口外断面水文调查分析[J].热带海洋学报,2005,24(3):10-17. Zeng Ganning, Hu Jianyu, Hong Huasheng, et al. Analysis of hydrologic section off Zhujiang River Estuary in northern South China Sea during various southwest monsoon phases[J]. Journal of Tropical Oceanography, 2005, 24(3):10-17.

Jing Zhiyou, Qi Yiquan, Hua Zulin, et al. Numerical study on the summer upwelling system in the northern continental shelf of the South China Sea[J]. Continental Shelf Research, 2009, 29(2):467-478.

Gan Jianping, Li Li, Wang Dongxiao, et al. Interaction of a river plume with coastal upwelling in the northeastern South China Sea[J]. Continental Shelf Research, 2009, 29(4):728-740.

陈子燊.珠江口仃何洋河口湾及邻近内陆架的纵向环流与物质输运分析[J].热带海洋,1993,12(4):47-53. Chen Zishen. Analysis on longitudinal net circulations and material fluxes in Lingding Estuary, Pearl River and adjacent inner shelf waters[J]. Tropical Oceanology, 1993, 12(4):47-53.

任杰,包芸,林卫强.珠江口伶仃洋水沙纵向输移特征分析[J].热带海洋学报,2001,20(3):35-40. Ren Jie, Bao Yun, Lin Weiqiang. Analysis on water and suspended sediment fluxes in Lingdingyang Estuary of Zhujiang River mouth[J]. Journal of Tropical Oceanography, 2001, 20(3):35-40.

徐君亮,王文介.珠江三角洲河道港湾发育演变与港口合理布局[M].北京:海洋出版社,1993:9-11. Xu Junliang, Wang Wenjie. Deposition and evolution process of river channel and estuarine gulf in the Pearl River Delta and its implication to the optimal layout of harbor development[M].Beijing:China Ocean Press, 1993:9-11.

钟雷高.温、盐、密分布和变化[M]//南海北部陆架邻近水域十年水文断面调查报告.北京:海洋出版社, 1990:57-72. Zhong Leigao. Distribution and variation of sea water temperature, salinity and density[M]//Report on the 10-year sectional hydrologic surveys in the shelf waters of the northern South China Sea. Beijing:China Ocean Press,1990:57-72.

Pan A J, Guo X G, Xu J D, et al. Respones of Guangdong coastal upwelling to summertime typhoons of 2006[J]. Science China:Earth Science, 2012, 55(3):495-506.

Csanady G T. The influence of wind stress and river runoff on a shelf-sea front[J]. Journal of Physical Oceanography, 1984, 14(8):1383-1392.

Garvine R W. A dynamical system of classifying buoyant coastal discharges[J]. Continental Shelf Research, 1995, 15(13):1585-1596.

Fong D A, Geyer W R. The alongshore transport of freshwater in a surface-trapped river plume[J]. Journal of Physical Oceanography, 2002, 32(3), 957-972.

Thomas A C, Ryan A, Weatherbee R A. Satellite-measured temporal variability of the Columbia River plume[J]. Remote Sensing of Environment, 2006, 100(2):167-178.

欧素英.珠江口冲淡水扩展变化及动力机制研究[D].广州:中国科学院南海海洋研究所,2005. Ou Suying. On the changes and mechanisms of the diluted water expansion off the Pearl River mouth[D]. Guangzhou:South China Sea Institute of Oceanology, Chinese Academy of Sciences, 2005.

Hansen D V, Rattray M J. Gravitational circulation in straits and estuaries[J]. Journal of Marine Research, 1966, 23(2):104-122.

朱建荣,丁平兴,胡敦欣.2000年8月长江口外海区冲淡水和羽状锋的观测[J].海洋与湖沼, 2003, 34(3):249-255. Zhu Jianrong, Ding Pingxing, Hu Dunxin. Observation of the diluted water and plume front off the Changiang River Estuary during August 2000[J]. Oceanologia et Limnologia Sinica, 2003, 34(3):249-255.

白志学,王凡.夏季长江冲淡水转向机制的数值试验[J].海洋与湖沼,2003,34(6):593-603. Bai Zhixue, Wang Fan. Numerical study on the mechanism of the expansion of the Changjiang River diluted water in summer[J]. Oceanologia et Limnologia Sinica, 2003, 34(6):593-603.

夏华永,廖世智.珠江口外走航ADCP资料的系统误差订正与质量控制[J].海洋学报,2010,32(3):1-7. Xia Huayong, Liao Shizhi. The quality control and the systematic error correction for the shipboard ADCP data off the Zhujiang River mouth[J]. Haiyang Xuebao, 2010, 32(3):1-7.

Relative Articles

Supplements(0)

Cited By

Proportional views