近二十年南海表层海水的盐度淡化及其机制*

doi:10.11978/2016101

热带海洋学报 ›› 2017, Vol. 36 ›› Issue (4): 18-24.doi: 10.11978/2016101CSTR: 32234.14.2016101

所属专题：南海专题

近二十年南海表层海水的盐度淡化及其机制*

傅圆圆^1,²(), 程旭华¹(), 张玉红¹, 严幼芳¹, 杜岩¹

1. 热带海洋环境国家重点实验室(中国科学院南海海洋研究所), 广东广州 510301
2. 中国科学院大学, 北京 100049

收稿日期:2016-10-19 修回日期:2017-01-02 出版日期:2017-07-20 发布日期:2017-07-26
作者简介:
作者简介：傅圆圆(1990—), 女, 山东省潍坊市人, 硕士研究生, 主要从事物理海洋学研究。E-mail:yuanf@scsio.ac.cn
基金资助:
国家自然科学基金(41522601、41230962、41276025、41506019);热带海洋环境国家重点实验室自主项目(LTOZZ1501);广州市珠江科技新星项目(201506010036)

The freshening trend of surface salinity in the South China Sea in recent two decades and its mechanism

Yuanyuan FU^1,²(), Xuhua CHENG¹(), Yuhong ZHANG¹, Youfang YAN¹, Yan DU¹

1. State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Science), Guangzhou 510301, China
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2016-10-19 Revised:2017-01-02 Online:2017-07-20 Published:2017-07-26
Supported by:
National Natural Science Foundation of China (41522601,41230962, 41276025, 41506019);The Open Project Program of State Key Laboratory of Tropical Oceanography (LTOZZ1501);The Pear River S&T Nova Program of Guangzhou (201506010036)

摘要/Abstract

摘要：

南海北部航次观测资料显示南海北部表层盐度在2004—2012年期间缓慢降低, 2012年盐度达到最低。客观分析数据EN4(the UK Met Office EN.4.0.2 objective analyses)以及OFES(ocean general circulation model for the Earth Simulator)模式结果都显示南海表层海水盐度在1993—2014年有淡化趋势, 最显著区域位于吕宋岛以西和南海南部。盐度收支分析表明淡水强迫在吕宋岛以西海域起主要贡献, 而水平平流输运主导南海西部的表层盐度变化。吕宋岛以西表层盐度的降低与近年来沃克环流加强引起的夏季强降雨增加有关。

关键词: 南海, 表层盐度, 淡化, 降雨, 水平平流, 海气相互作用

Abstract:

In situ hydrographic data of sea surface salinity (SSS) revealed a freshening trend in the northern South China Sea (SCS) during 2004—2012, which was the freshest in 2012. Such freshening was also found in the UK Met Office EN4 objective analysis product and the ocean general circulation model for the Earth Simulator (OFES) output during 1993-2014, particularly west of Luzon Island and in the southeastern SCS. The salinity budget analysis in the upper layer indicated that the fresh water forcing and horizontal salinity advection contributed to the trends of SSS west of Luzon Island and in the western SCS, respectively. The excessive precipitation in summer accounted for the decrease of SSS to a great extent west of Luzon Island, which was associated with the strengthening trend of the Walker Circulation.

Key words: South China Sea, sea surface salinity variability, freshening, precipitation, horizontal salinity advection, air-sea interaction

中图分类号:

P731.12

傅圆圆, 程旭华, 张玉红, 严幼芳, 杜岩. 近二十年南海表层海水的盐度淡化及其机制*[J]. 热带海洋学报, 2017, 36(4): 18-24.

Yuanyuan FU, Xuhua CHENG, Yuhong ZHANG, Youfang YAN, Yan DU. The freshening trend of surface salinity in the South China Sea in recent two decades and its mechanism[J]. Journal of Tropical Oceanography, 2017, 36(4): 18-24.

图/表 10

表1

图1

图2

图3

图4

图5

图6

图7

图8

图9

参考文献 21

[1]	郭敬, 陈显尧, 张远凌, 2013. 影响南海混合层盐度季节变化的因素分析[J]. 海洋科学进展, 31(2): 180-187.
	GUO JING, CHEN XIANYAO, ZHANG YUANLING, 2013. Factors influencing the seasonal variations of mixed layer salinity in the South China Sea[J]. Advances in Marine Science, 31(2): 180-187 (in Chinese with English abstract).
[2]	王静, 赵飞达, 齐义泉, 2015. 夏末秋初南海18°N断面混合层结构特征分析[J]. 海洋通报, 34(1): 52-58.
	WANG JING, ZHAO FEIDA, QI YIQUAN, 2015. Characteristics of mixed layer cross section 18°N in the South China Sea during late summer and early autumn[J]. Marine Science Bulletin, 34(1): 52-58 (in Chinese with English abstract).
[3]	李磊, 李凤岐, 苏洁, 许建平, 2002. 1998年南海夏冬季南海水团分析[J]. 海洋与湖沼, 33(4): 393-401.
	LI LEI, LI FENGQI, SU JIE, XU JIANPING, 2002. Analysis on water masses in the South China Sea in summer and winter of 1998[J]. Oceanologia et Limnologia Sinica, 33(4): 393-401(in Chinese with English abstract).
[4]	DELCROIX T, HÉNIN C, 1991. Seasonal and interannual variations of sea surface salinity in the tropical Pacific Ocean[J]. Journal of Geophysical Research, 96(C12): 22135-22150.
[5]	DU YAN, ZHANG YUHONG, FENG MING, et al, 2015. Decadal trends of the upper ocean salinity in the tropical Indo-Pacific since mid-1990s[J]. Scientific Reports, 5: 16050.
[6]	GOOD S A, MARTIN M J, RAYNER N A, 2013. EN4: quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates[J]. Journal of Geophysical Research: Oceans, 118(12): 6704-6716.
[7]	HELD I M, SODEN B J, 2006. Robust responses of the hydrological cycle to global warming[J]. Journal of Climate, 19(12): 5686-5699.
[8]	IPCC, 2007. Climate Change 2007: The Physical Science Basis[M]. Cambridge, United Kingdom and New York, NY, USA: Cambridge University Press: 1-996.
[9]	ISHII M, KIMOTO M, SAKAMOTO K, et al, 2006. Steric sea level changes estimated from historical ocean subsurface temperature and salinity analyses[J]. Journal of Oceanography, 62(2): 155-170.
[10]	KATSURA S, OKA E, QIU BO, et al, 2013. Formation and subduction of North Pacific tropical water and their interannual variability[J]. Journal Physical Oceanography, 43(11): 2400-2415.
[11]	KHALED H H, 2008. Trend detection in hydrologic data: The Mann-Kendall trend test under the scaling hypothesis[J]. Journal of Hydrology, 349(3-4): 350-363.
[12]	LAGERLOEF G S E, 2002. Introduction to the special section: The role of surface salinity on upper ocean dynamics, air-sea interaction and climate[J]. Journal of Geophysical Research, 107(C12): 8000.
[13]	NAN FENG, XUE HUIJIE, CHAI FEI, et al, 2013. Weakening of the Kuroshio Intrusion into the South China Sea over the past two decades[J]. Journal of Climate, 26(20): 8097-8110.
[14]	QU TANGDONG, DU YAN, SASAKI H, 2006. South China Sea throughflow: A heat and freshwater conveyor[J]. Geophysical Research Letters, 33(23): L23617.
[15]	REN LI, RISER S C, 2009. Seasonal salt budget in the northeast Pacific Ocean[J]. Journal of Geophysical Research, 114(12): C12004.
[16]	REN LI, RISER S C, 2010. Observations of decadal time scale salinity changes in the subtropical thermocline of the North Pacific Ocean[J]. Deep Sea Research, Part II: Topical Studies in Oceanography, 57(13-14): 1161-1170.
[17]	WILLIAMS P D, GUILYARDI E, SUTTON R, et al, 2007. A new feedback on climate change from the hydrological cycle[J]. Geophysical Research Letters, 34(8): L08706.
[18]	XU HAIMING, XIE SHANG-PING, WANG YUQING, et al, 2008. Orographic effects on South China Sea summer climate[J]. Meteorology and Atmospheric Physics, 100(1-4): 275-289.
[19]	YANG JIAYAN, LIN XIAOPEI, WU DEXING, 2012. On the dynamics of the seasonal variation in the South China Sea throughflow transport[J]. Journal of Geophysical Research: Ocean, 118: 6854-6866.
[20]	YAN YUNWEI, WANG GUIHUA, WANG CHUNZAI, et al, 2015. Low-salinity water off West Luzon Island in summer[J]. Journal of Geophysical Research: Ocean, 120(4): 3011-3021.
[21]	ZENG LILI, LIU T W, XUE HUIJIE, et al, 2014. Freshening in the South China Sea during 2012 revealed by Aquarius and in situ data[J]. Journal of Geophysical Research: Oceans, 119(12): 8296-8314.

序号	资料	水平分辨率	变量
1	南海北部航次资料		盐度
2	EN4客观分析资料	1°×1°	盐度
3	Ishii资料	1°×1°	盐度
4	OFES资料	0.1°×0.1°	盐度、流速
5	GPCP资料	2.5°×2.5°	降雨量
6	ECMWF资料	1°×1°	蒸发
7	WOA13资料	1°×1°	盐度

近二十年南海表层海水的盐度淡化及其机制*

The freshening trend of surface salinity in the South China Sea in recent two decades and its mechanism

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

图/表 10

参考文献 21

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	徐超, 龙丽娟, 李莎, 袁丽, 徐晓璐. 南海及其附属岛礁海洋科学考察历史资料系统整编3. 数据共享服务及应用[J]. 热带海洋学报, 2024, 43(5): 158-165.
[2]	徐超, 龙丽娟, 李莎, 何云开, 袁丽, 徐晓璐. 南海及其附属岛礁海洋科学考察历史资料系统整编1. 资料整编技术及应用[J]. 热带海洋学报, 2024, 43(5): 143-149.
[3]	徐超, 龙丽娟, 李莎, 徐晓璐, 袁丽. 南海及其附属岛礁海洋科学考察历史资料系统整编2. 数据治理技术与应用[J]. 热带海洋学报, 2024, 43(5): 150-157.
[4]	商洁, 吴莹, 邹依珂, 马靖雯. FY-3D卫星MWRI资料反演洋面台风降雨率^*[J]. 热带海洋学报, 2024, 43(5): 32-40.
[5]	柳原, 柯志新, 李开枝, 谭烨辉, 梁竣策, 周伟华. 人类活动和沿岸流影响下的粤东近海浮游动物群落特征[J]. 热带海洋学报, 2024, 43(4): 98-111.
[6]	刘玓玓, 张喜洋, 孙富林, 王明壮, 谭飞, 施祺, 王冠, 杨红强. 南海海滩岩微生物群落结构和特定菌株对其成因机制的启示*[J]. 热带海洋学报, 2024, 43(4): 112-122.
[7]	江绿苗, 陈天然, 赵宽, 张婷, 许莉佳. 南海北部涠洲岛边缘珊瑚礁的生物侵蚀实验研究[J]. 热带海洋学报, 2024, 43(3): 155-165.
[8]	许莉佳, 廖芝衡, 陈辉, 王永智, 黄柏强, 林巧云, 甘健锋, 杨静. 南海北部珊瑚群落结构特征及其对海洋热浪事件的响应[J]. 热带海洋学报, 2024, 43(3): 58-71.
[9]	邱燕, 鞠东, 黄文凯, 王英民, 聂鑫. 南海中央海盆海底初始扩张时间的重新认定[J]. 热带海洋学报, 2024, 43(2): 154-165.
[10]	陈泽生, 李振宁, 郭媛媛, 王腾, 杜岩. 基于CESM模式的4至6月热带西南印度洋海表异常增暖对印太气候影响的研究^*[J]. 热带海洋学报, 2024, 43(2): 12-20.
[11]	赵明辉, 袁野, 张佳政, 张翠梅, 高金尉, 王强, 孙珍, 程锦辉. 南海北部被动陆缘洋陆转换带张裂-破裂研究新进展[J]. 热带海洋学报, 2024, 43(2): 173-183.
[12]	黄谕, 王琳, 麦志茂, 李洁, 张偲. 南海热带岛礁生物土壤结皮中细菌的分离及其固砂特性初步研究[J]. 热带海洋学报, 2023, 42(6): 101-110.
[13]	王辰燕, 史敬文, 颜安南, 康亚茹, 王煜轩, 覃素丽, 韩民伟, 张瑞杰, 余克服. 有机磷酸酯在南海长棘海星中的生物富集特征及来源解析[J]. 热带海洋学报, 2023, 42(5): 30-37.
[14]	李牛, 邸鹏飞, 冯东, 陈多福. 冷泉渗漏对海洋沉积物氧化还原环境地球化学识别的影响——以南海东北部F站位活动冷泉为例^*[J]. 热带海洋学报, 2023, 42(5): 144-153.
[15]	张智晟, 谢玲玲, 李君益, 李强. 边缘海与开阔海中尺度涡生命周期演化规律对比分析: 以南海和黑潮延伸体为例[J]. 热带海洋学报, 2023, 42(4): 63-76.