北部湾东北部水团分布及季节变化分析
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摘要
基于2016年9月—2017年8月北部湾海域棕囊藻调查9个航次的温度、盐度和密度等水文数据,通过K-mean动态聚类分析方法分析了研究海域水团的分布及季节变化过程。根据温盐资料将研究海域的海水类型分为低温高盐的陆架底层水团、陆架表层混合水团和低盐沿岸水团。通过20°10′N断面上多期次的温盐分布特征揭示了北部湾整体上逆时针环流在北部湾东侧陆坡的存在;通过大面水文调查的结果揭示琼州海峡的余流特征,并结合卫星漂流浮标运动轨迹揭示了珠江冲淡水对研究海区水团分布的影响。本研究丰富了对北部湾东北部水团分布和季节变化的认知,对研究该海域赤潮发生、发展规律有指导意义。
Hydrological data were collected in nine field surveys in the Beibu Gulf, Guangxi, South China between September in 2016 and August in 2017, in which temperature, salinity, and density data were measured. The K-mean dynamic clustering method was applied to study the water mass distribution and evolution. According to the different sources of water, seawater were classified into three types, i.e., the bottom mixed shelf water with low temperature and high salinity, the surface mixed shelf water, and the coastal water with low salinity. An anticlockwise circulation was confirmed along the 20°10′N section in the eastern slope of Beibu Gulf as shown by hydrological data, and so did the residual current in the Qiongzhou Strait. In addition, with the help of satellite tracking surface drifters, the impact of the Zhujiang(Pearl) River diluted water on the study region was revealed. This research enriched the understanding of the distribution and seasonal variation of water masses in the northeastern Beibu Gulf. It was instructive to study the occurrence and development of red tide in this area.
Hydrological data were collected in nine field surveys in the Beibu Gulf, Guangxi, South China between September in 2016 and August in 2017, in which temperature, salinity, and density data were measured. The K-mean dynamic clustering method was applied to study the water mass distribution and evolution. According to the different sources of water, seawater were classified into three types, i.e., the bottom mixed shelf water with low temperature and high salinity, the surface mixed shelf water, and the coastal water with low salinity. An anticlockwise circulation was confirmed along the 20°10′N section in the eastern slope of Beibu Gulf as shown by hydrological data, and so did the residual current in the Qiongzhou Strait. In addition, with the help of satellite tracking surface drifters, the impact of the Zhujiang(Pearl) River diluted water on the study region was revealed. This research enriched the understanding of the distribution and seasonal variation of water masses in the northeastern Beibu Gulf. It was instructive to study the occurrence and development of red tide in this area.
引文
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陈波,李培良.2006.用温盐资料研究夏季南海水通过琼州海峡进入北部湾的特征.海洋湖沼通报,(1):1-7
吴敏兰,2014.北部湾北部海域营养盐的分布特征及其对生态系统的影响研究.厦门:厦门大学硕士学位论文
张国荣,马腾,潘伟然等,2009.琼州海峡西口低频流动特征及其季节风场的响应分析.见:李炎,胡建宇.北部湾海洋科学研究论文集(第2辑).北京:海洋出版社,64-76
陈波,1986.北部湾水系形成及其性质的初步探讨.广西科学院学报,2(2):92-95
陈波,竺利波,2018.广西海洋科学研究回顾与展望.广西科学,25(1):1-9,14
陈胜利,胡建宇,朱佳等,2008.2006年夏季北部湾东部海区水团的分析.见:胡建宇,杨圣云.北部湾海洋科学研究论文集(第1辑).北京:海洋出版社,88-97
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侍茂崇,2014.北部湾环流研究述评.广西科学,21(4):313-324
侍茂崇,陈波,2015.涠洲岛东南部海域高浓度氮和磷的来源分析.广西科学,22(3):237-244
姜景忠,朱兆方,1997.春末夏初北部湾的水文特征.见:第十一届全国水动力学研讨会暨第四届全国水动力学学术会议.无锡:中国力学学会,200-207
高劲松,陈波,侍茂崇,2015.北部湾夏季环流结构及生成机制.中国科学:地球科学,45(1):99-112
靳姗姗,2017.基于K-means聚类分析的南海水团分布及其季节变化研究.青岛:国家海洋局第一海洋研究所硕士学位论文
Chen Z H,Qiao F L,Xia C S et al,2015.The numerical investigation of seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms.Acta Oceanologica Sinica,34(1):44-54
Gao J S,Xue H J,Chai F et al,2013.Modeling the circulation in the Gulf of Tonkin,South China Sea.Ocean Dynamics,63(8):979-993
Shi M C,Chen C S,Xu Q C et al,2002.The role of Qiongzhou Strait in the seasonal variation of the South China Sea circulation.Journal of Physical Oceanography,32(1):103-121
Zhu X H,Zhu Z N,Guo X Y et al,2015.Measurement of tidal and residual currents and volume transport through the Qiongzhou Strait using coastal acoustic tomography.Continental Shelf Research,108:65-75
陈波,李培良.2006.用温盐资料研究夏季南海水通过琼州海峡进入北部湾的特征.海洋湖沼通报,(1):1-7
吴敏兰,2014.北部湾北部海域营养盐的分布特征及其对生态系统的影响研究.厦门:厦门大学硕士学位论文
张国荣,马腾,潘伟然等,2009.琼州海峡西口低频流动特征及其季节风场的响应分析.见:李炎,胡建宇.北部湾海洋科学研究论文集(第2辑).北京:海洋出版社,64-76
陈波,1986.北部湾水系形成及其性质的初步探讨.广西科学院学报,2(2):92-95
陈波,竺利波,2018.广西海洋科学研究回顾与展望.广西科学,25(1):1-9,14
陈胜利,胡建宇,朱佳等,2008.2006年夏季北部湾东部海区水团的分析.见:胡建宇,杨圣云.北部湾海洋科学研究论文集(第1辑).北京:海洋出版社,88-97
陈胜利,胡建宇,孙振宇等,2009.2006年冬季北部湾东部海区的水团分析.见:李炎,胡建宇.北部湾海洋科学研究论文集(第2辑)北京:海洋出版社,120-126
侍茂崇,2014.北部湾环流研究述评.广西科学,21(4):313-324
侍茂崇,陈波,2015.涠洲岛东南部海域高浓度氮和磷的来源分析.广西科学,22(3):237-244
姜景忠,朱兆方,1997.春末夏初北部湾的水文特征.见:第十一届全国水动力学研讨会暨第四届全国水动力学学术会议.无锡:中国力学学会,200-207
高劲松,陈波,侍茂崇,2015.北部湾夏季环流结构及生成机制.中国科学:地球科学,45(1):99-112
靳姗姗,2017.基于K-means聚类分析的南海水团分布及其季节变化研究.青岛:国家海洋局第一海洋研究所硕士学位论文
Chen Z H,Qiao F L,Xia C S et al,2015.The numerical investigation of seasonal variation of the cold water mass in the Beibu Gulf and its mechanisms.Acta Oceanologica Sinica,34(1):44-54
Gao J S,Xue H J,Chai F et al,2013.Modeling the circulation in the Gulf of Tonkin,South China Sea.Ocean Dynamics,63(8):979-993
Shi M C,Chen C S,Xu Q C et al,2002.The role of Qiongzhou Strait in the seasonal variation of the South China Sea circulation.Journal of Physical Oceanography,32(1):103-121
Zhu X H,Zhu Z N,Guo X Y et al,2015.Measurement of tidal and residual currents and volume transport through the Qiongzhou Strait using coastal acoustic tomography.Continental Shelf Research,108:65-75