Analysis of water masses at the 10°N section in the tropical central and eastern Pacific

Zhang Lei; Tian Yongqing; Pan Aijun; Chen Hangyu; Zhou Xiwu; Wan Xiaofang; Lin Hui; Huang Hao

doi:10.3969/j.issn.0253-4193.2019.11.005

Volume 41 Issue 11

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Zhang Lei，Tian Yongqing，Pan Aijun, et al. Analysis of water masses at the 10°N section in the tropical central and eastern Pacific[J]. Haiyang Xuebao，2019, 41(11)：40–50，doi:10.3969/j.issn.0253−4193.2019.11.005

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Analysis of water masses at the 10°N section in the tropical central and eastern Pacific

doi: 10.3969/j.issn.0253-4193.2019.11.005

1.
Department of Military Oceanography and Hydrography, PLA Dalian Naval Academy, Dalian 116018, China
2.
Third Institude of Oceanography, Ministry of Natural Resources, Xiamen 361005, China

Received Date: 2018-10-12
Rev Recd Date: 2019-01-14

Available Online: 2021-04-21

Publish Date: 2019-11-25

Abstract

Abstract

Based on the survey data of temperature and salinity, concentration mixture analysis method is used to analyze water masses at 10°N section in the tropical central and eastern Pacific. From top to bottom, the water masses are the Eastern Equatorial Tropical Water Mass (E-ETWM), the North Pacific Central Water (NPCW), the California Current System waters (CCS), the South Pacific Central Water (SPCW), the Pacific Subarctic Water Mass (PSWM) and the Pacific Deep Water (PDW). It is found that the upwelling is induced by the constant positive wind stress curl throughout the year in the sea area from 9°N to 10°N under the influence of the intertropical convergence zone (ITCZ), then the four ventilated subduction water masses of the NPCW, the CCS, the SPCW and the PSWM are pumped into the subsurface and intermediate layer and distributed at different levels. Previous studies have only pointed out that the above four water masses will sink and move towards the equator after the formation of surface ventilation. This study further clarify the dynamic mechanism of the four water masses moving equatorwards as it subduction. What’s more, we reveal their corresponding depths at the 10°N section in the tropical central and eastern Pacific. The results reveal the cycling process between the tropical central and eastern Pacific water masses and the upper and intermediate layer water masses in the subtropical, subpolar regions in the North Pacific and subtropical region in South Pacific, which are of great scientific value to understand the exchange and redistribution of matter and energy between high, middle and low latitudes in the North Pacific.
- central and eastern Pacific,
- concentration mixture analysis method,
- water masses,
- upwelling

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References

[1]	李凤岐, 苏育嵩. 海洋水团分析[M]. 青岛: 中国海洋大学出版社, 2001. Li Fengqi, Su Yusong. Analyses of Water Masses in Oceans[M]. Qingdao: Ocean University of China Press, 2001.
[2]	Sverdrup H U, Johnson M W, Fleming R H. The Oceans, their Physics, Chemistry, and General Biology[M]. New York: Prentice-Hall, 1946: 1–1087.
[3]	Reid J L Jr. Intermediate Waters of the Pacific Ocean[M]. Baltimore, Maryland: Johns Hopkins Press, 1965: 1–85.
[4]	Mamaev O I. Temperature-Salinity Analysis of World Ocean Waters[M]. Amsterdam: Elsevier Scientific Publishing, 1975.
[5]	毛漢礼, 任允武, 万国銘. 应用T-S关系定量地分析浅海水团的初步研究[J]. 海洋与湖沼, 1964, 6(1): 1−22. Mao Hanli, Ren Yunwu, Wan Guoming. A preliminary investigaton on the application of using T-S diagrams for a quantitative analysis of the watermass in the shallow water area[J]. Oceanologia et Limnologia Sinica, 1964, 6(1): 1−22.
[6]	苏育嵩. 划分变性水团边界的温盐点聚对照法与东海西部海区变性水团的分析[J]. 海洋学报, 1980, 2(1): 1−16. Su Yusong. The TS-comparison method for determining the boundary of modified water-masses and the analysis of modified water-masses in the western area of the East China Sea[J]. Haiyang Xuebao, 1980, 2(1): 1−16.
[7]	袁业立, 李惠卿. 黄海冷水团环流结构及生成机制研究——Ⅰ.0阶解及冷水团的环流结构[J]. 中国科学:B辑, 1993, 23(1): 93−103. Yuan Yeli, Li Huiqing. On the circulation structure and formation mechanism of the cold water mass of the Yellow Sea (I)—zero-order solution and circulation structure[J]. Science in China: Series B, 1993, 23(1): 93−103.
[8]	袁延茂, 李磊, 郝秀敏, 等. 基于PHC3.0数据集的北冰洋水团分析[J]. 海洋测绘, 2011, 31(4): 67−69. doi: 10.3969/j.issn.1671-3044.2011.04.019 Yuan Yanmao, Li Lei, Hao Xiumin, et al. Analysis on the water masses in the Arctic ocean based on the PHC3.0 data sets[J]. Hydrographic Surveying and Charting, 2011, 31(4): 67−69. doi: 10.3969/j.issn.1671-3044.2011.04.019
[9]	王冬, 黄洪亮, 张钟哲, 等. 2013年夏季普里兹湾水团分析[J]. 海洋科学进展, 2016, 34(2): 216−225. doi: 10.3969/j.issn.1671-6647.2016.02.007 Wang Dong, Huang Hongliang, Zhang Zhongzhe, et al. Analysis of water masses in Prydz Bay of Antarctica in the summer of 2013[J]. Advances in Marine Science, 2016, 34(2): 216−225. doi: 10.3969/j.issn.1671-6647.2016.02.007
[10]	Pickard G L, Emery W J. Descriptive Physical Oceanography: An Introduction[M]. 5th ed. Oxford: Pergamon Press, 1990.
[11]	Kawabe M, Fujio S. Pacific ocean circulation based on observation[J]. Journal of Oceanography, 2010, 66(3): 389−403. doi: 10.1007/s10872-010-0034-8
[12]	Talley L D, Pickard G L, Emery W J, et al. Descriptive Physical Oceanography: An Introduction[M]. 6th ed. London: Academic Press, 2011.
[13]	Emery W J, Dewar J S. Mean temperature-salinity, salinity-depth and temperature-depth curves for the North Atlantic and the North Pacific[J]. Progress in Oceanography, 1982, 11(3): 219−256. doi: 10.1016/0079-6611(82)90015-5
[14]	李绪录. 热带西太平洋8°N断面上部的水团特征及其对厄尔尼诺的响应[J]. 台湾海峡, 1993, 12(1): 41−47. Li Xulu. Water mass features in the upper part of section along 8°N in western tropical Pacific Ocean and their responses to El Niño and anti-El Niño[J]. Journal of Oceanography in Taiwan Strait, 1993, 12(1): 41−47.
[15]	Montgomery R B. Water characteristics of Atlantic Ocean and of world ocean[J]. Deep Sea Research, 1958-1959, 5(2/4): 134−148.
[16]	Kawai H. Hydrography of the Kuroshio Extension[M]//Stommel H, Yoshida K. Kuroshio: Its Physical Aspects. Tokyo: University of Tokyo Press, 1972: 235–352
[17]	苏京志, 张人禾. 赤道太平洋近表层上升流的估计[J]. 热带海洋学报, 2008, 27(4): 32−37. doi: 10.3969/j.issn.1009-5470.2008.04.005 Su Jingzhi, Zhang Renhe. An estimate of near-surface upwelling in equatorial Pacific[J]. Journal of Tropical Oceanography, 2008, 27(4): 32−37. doi: 10.3969/j.issn.1009-5470.2008.04.005
[18]	Weisberg R H, Qiao Lin. Equatorial upwelling in the Central Pacific estimated from moored velocity profilers[J]. Journal of Physical Oceanography, 2000, 30(1): 105−124. doi: 10.1175/1520-0485(2000)030<0105:EUITCP>2.0.CO;2
[19]	Wyrtki K. An estimate of equatorial upwelling in the Pacific[J]. Journal of Physical Oceanography, 1981, 11(9): 1205−1214. doi: 10.1175/1520-0485(1981)011<1205:AEOEUI>2.0.CO;2
[20]	陈上及, 杜兵. 西赤道太平洋上层水水团的软划分[J]. 海洋学报, 1990, 12(4): 405−415. Chen Shangji, Du Bing. Soft division of upper water masses in the western equatorial Pacific[J]. Haiyang Xuebao, 1990, 12(4): 405−415.
[21]	周广庆, 李崇银. 西太平洋暖池次表层海温异常与ENSO关系的CGCM模拟结果[J]. 气候与环境研究, 1999, 4(4): 346−352. Zhou Guangqing, Li Chongyin. Simulation on the relation between the subsurface temperature anomaly in western Pacific and ENSO by using CGCM[J]. Climatic and Environmental Research, 1999, 4(4): 346−352.
[22]	Zhang Min, Zhou Lei, Fu Hongli, et al. Assessment of intraseasonal variabilities in China Ocean Reanalysis (CORA)[J]. Acta Oceanologica Sinica, 2016, 35(3): 90−101. doi: 10.1007/s13131-016-0820-2
[23]	Carton J A, Chepurin G A, Chen Ligang. SODA3: a new ocean climate reanalysis[J]. Journal of Climate, 2018, 31(17): 6967−6983. doi: 10.1175/JCLI-D-18-0149.1
[24]	Liu W T. Progress in scatterometer application[J]. Journal of Oceanography, 2002, 58(1): 121−136. doi: 10.1023/A:1015832919110
[25]	路季平. 空间流系中水团不定常混合的理论分析[J]. 山东海洋学院学报, 1965(1): 1−14. Lu Jiping. Theoretical analysis of unsteady mixing of water-masses in space flow system[J]. Journal of Ocean University of China, 1965(1): 1−14.
[26]	路季平. 积分变换及其在物理海洋学中的应用[M]. 北京: 海洋出版社, 1984. Lu Jiping. Integral Transformation and its Application in Physical Oceanography[M]. Beijing: China Ocean Press, 1984.
[27]	Qiu Bo, Lukas R. Seasonal and interannual variability of the North Equatorial Current, the Mindanao Current, and the Kuroshio along the Pacific western boundary[J]. Journal of Geophysical Research: Oceans, 1996, 101(C5): 12315−12330. doi: 10.1029/95JC03204
[28]	Yu Zuojun, McCreary J P Jr, Kessler W S, et al. Influence of equatorial dynamics on the Pacific north equatorial countercurrent[J]. Journal of Physical Oceanography, 2000, 30(12): 3179−3190. doi: 10.1175/1520-0485(2000)030<3179:IOEDOT>2.0.CO;2
[29]	Philander S G H, Gu D, Lambert G, et al. Why the ITCZ is mostly north of the equator[J]. Journal of Climate, 1996, 9(12): 2958−2972. doi: 10.1175/1520-0442(1996)009<2958:WTIIMN>2.0.CO;2
[30]	Tsuchiya M. Upper waters of the intertropical Pacific Ocean[J]. Baltimore: Johns Hopkins Press, 1968, 4: 1−50.
[31]	李福荣. 春末黄东海域溶解氧分布与水团关系[J]. 青岛海洋大学学报, 1995, 25(2): 255−263. Li Furong. On the relationship between the distribution of dissolved oxygen and water masses in the Yellow Sea and East China Sea late in spring[J]. Journal of Ocean University of Qingdao, 1995, 25(2): 255−263.
[32]	李佳俊, 沈萍萍, 谭烨辉, 等. 南海东北部浮游植物对氮、磷加富的响应及与不同水团的关系[J]. 海洋学报, 2015, 37(10): 88−99. doi: 10.3969/j.issn.0253-4193.2015.10.009 Li Jiajun, Shen Pingping, Tan Yehui, et al. Phytoplankton responses to nitrogen and phosphorus enrichment in relation to different water masses[J]. Haiyang Xuebao, 2015, 37(10): 88−99. doi: 10.3969/j.issn.0253-4193.2015.10.009