The impact of Kuroshio water on the source water of the southeastern Taiwan Strait: numerical results
-
摘要: 本文利用太平洋三维物理-生物化学耦合数值模型1991-2008年的模拟数据研究了黑潮水对台湾海峡东南部源水的影响。根据黑潮水和南海水的特征盐度,设计了一个黑潮影响指数,来衡量黑潮水的影响程度。黑潮影响指数与风应力的东北-西南分量显著相关,但前者相对后者滞后约两个月。当时间滞后从0变到63天时,它们之间的相关系数从0.2674上升到0.8529。黑潮水的影响冬春季大于夏秋季。在年际尺度上,厄尔尼诺和拉尼娜事件对黑潮影响指数起着重要作用。在厄尔尼诺期间,黑潮水对台湾海峡东南部源水的影响较大;相反在拉尼娜期间,黑潮水的贡献较小。
-
关键词:
- 黑潮水,季节变化,年际变化,台湾海峡
Abstract: Model output from a Pacific basin-wide three-dimensional physical-biogeochemical model during the period of 1991 to 2008 was used to investigate the impact of Kuroshio water on the source water of the southeastern Taiwan Strait. Based on the characteristic salinities of both Kuroshio water and the South China Sea water, a Kuroshio impact index (KII) was designed to measure the degree of impact. The KII correlates significantly with the northeast-southwest component of wind stress, but the former lags the latter by approximately two months. The correlation coefficient between them increases from 0.267 4 to 0.852 9, with a lag time increasing from 0 to 63 days. The impact of Kuroshio Water is greater in winter and spring than in summer and autumn. At the interannual time scale, El Niño and La Niña events play an important role in impacting the KII. During El Niño events, more Kuroshio water contributes to the source water of the southeastern Taiwan Strait. Conversely, during La Niña events, less Kuroshio water contributes to the source water.-
Key words:
- Kuroshio water
-
Caruso M J, Gawarkiewicz G G, Beardsley R C. 2006. Interannual variability of the Kuroshio intrusion in the South China Sea. Journal of Oceanography, 62(4): 559-575 Chen Wen. 2002. Impacts of El Niño and La Niña on the cycle of the East Asian winter and summer monsoon. Chinese J Atmos Sci (in Chinese), 26(5): 595-610 Chen C T A, Jan S, Hsuan H T, et al. 2010. Spring of no Kuroshio intrusion in the southern Taiwan Strait. Journal of Geophysical Research, 115(C8): C08011 Chu P C, Edmons N L, Fan Chenwu. 1999. Dynamical mechanisms for the South China Sea seasonal circulation and thermohaline variabilities. Journal of Physical Oceanography, 29(1): 2971-2989 Chuang W-S. 1985. Dynamics of subtidal flow in the Taiwan Strait. Journal of the Oceanographical Society of Japan, 41(2): 65-72 Fang Guohong, Chen Haiying, Wei Zexun, et al. 2006. Trends and interannual variability of the South China Sea surface winds, surface height, and surface temperature in the recent decade. Journal of Geophysical Research, 111(C11): C11S16 Hu Jianyu, Kawamura H, Hong Huasheng, et al. 2000. A review on the currents in the South China Sea: seasonal circulation, South China Sea warm current and Kuroshio intrusion. Journal of Oceanography, 56(6): 607-624 Hu Jianyu, Kawamura H, Li Chunyan, et al. 2010. Review on current and seawater volume transport through the Taiwan Strait. Journal of Oceanography, 66(5): 591-610 Huang N E, Shen Zheng, Long S R, et al. 1998. The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis. Proceedings of the Royal Society of A: Mathematical, Physical and Engineering Sciences, 454(1971): 903-995 Huang T-H, Chen C-T A, Zhang Wenzhou, et al. 2015. Varying intensity of Kuroshio intrusion into Southeast Taiwan Strait during ENSO events. Continental Shelf Research, 103: 79-87 Jan S, Sheu D D, Kuo H-M. 2006. Water mass and throughflow transport variability in the Taiwan Strait. Journal of Geophysical Research, 111(C12): C12012 Jan S, Tseng Y, Dietrich D E. 2010. Sources of water in the Taiwan Strait. Journal of Oceanography, 66(2): 211-221 Jan S, Wang J, Chern C-S, et al. 2002. Seasonal variation of the circulation in the Taiwan Strait. Journal of Marine Systems, 35(3-4): 249-268 Jia Yinglai, Liu Qinyu. 2004. Eddy shedding from the Kuroshio bend at Luzon Strait. Journal of Oceanography, 60(6): 1063-1069 Kalnay E, Kanamitsu M, Kistler R, et al. 1996. The NCEP/NCAR 40- year reanalysis project. Bulletin of the American Meteorological Society, 77(3): 437-472 Kim Y Y, Qu Tangdong, Jensen T, et al. 2004. Seasonal and interannual variations of the North Equatorial Current bifurcation in a high-resolution OGCM. Journal of Geophysical Research, 109(C3): C03040 Lai R J, Huang N. 2005. Investigation of vertical and horizontal momentum transfer in the Gulf of Mexico using empirical mode decomposition method. Journal of Physical Oceanography, 35(8): 1383-1402 Li Li, Nowlin W D Jr, Su Jilan. 1998. Anticyclonic rings from the Kuroshio in the South China Sea. Deep-Sea Research Part I, 45(9): 1469-1482 Liang W-D, Yang Y J, Tang T Y, et al. 2008. Kuroshio in the Luzon Strait. Journal of Geophysical Research, 113(C8): C08048 Nan Feng, Xue Huijie, Chai Fei, et al. 2011a. Identification of different types of Kuroshio intrusion into the South China Sea. Ocean Dynamics, 61(9): 1291-1304 Nan Feng, Xue Huijie, Chai Fei, et al. 2013. Weakening of the Kuroshio intrusion into the South China Sea over the past two decades. Journal of Climate, 26(20): 8097-8110 Nan Feng, Xue Huijie, Xiu Peng, et al. 2011b. Oceanic eddy formation and propagation southwest of Taiwan. Journal of Geophysical Research, 116(C12): C12045 Palacz A P, Xue Huijie, Armbrecht C, et al. 2011. Seasonal and interannual changes in the surface chlorophyll of the South China Sea. Journal of Geophysical Research, 116(C9): C09015 Qu Tangdong. 2000. Upper-layer circulation in the South China Sea. Journal of Physical Oceanography, 30(6): 1450-1460 Qu Tangdong, Kim Y Y, Yaremchuk M, et al. 2004. Can Luzon Strait transport play a role in conveying the impact of ENSO to the South China Sea?. Journal of Climate, 17(18): 3644-3657 Shang Shaoling, Zhang Caiyun, Hong Huasheng, et al. 2005. Hydrographic and biological changes in the Taiwan Strait during the 1997-1998 El Niño winter. Geophysical Research Letters, 32(11): L11601 Sheremet V A. 2001. Hysteresis of a western boundary current leaping across a gap. Journal of Physical Oceanography, 31(5): 1247-1259 Tsui I-F, Wu C-R. 2012. Variability analysis of Kuroshio intrusion through Luzon Strait using growing hierarchical self-organizing map. Ocean Dynamics, 62(8): 1187-1194 Wang J, Chern C-S. 1988. On the Kuroshio branch in the Taiwan Strait during wintertime. Progress in Oceanography, 21(3-4): 469-491 Wang Bin, Wu Renguang, Fu Xiouhua. 2000. Pacific-East Asian teleconnection: how does ENSO affect East Asian climate?. Journal of Climate, 13(9): 1517-1536 Wang Dongxiao, Liu Qinyan, Huang Rui Xin, et al. 2006. Interannual variability of the South China Sea throughflow inferred from wind data and an ocean data assimilation product. Geophysical Research Letters, 33(14): L14605 Wang Dongxiao, Xu Hongzhou, Lin Jing, et al. 2008. Anticyclonic eddies in the northeastern South China Sea during winter 2003/2004. Journal of Oceanography, 64(6): 925-935 Wang Xiaochun, Chao Yi. 2004. Simulated sea surface salinity variability in the tropical Pacific. Geophysical Research Letters, 31(2): L02302 Wu C-R, Hsin Y-C. 2012. The forcing mechanism leading to the Kuroshio intrusion into the South China Sea. Journal of Geophysical Research, 117(C7): C07015 Wu Zhaohua, Huang N E. 2009. Ensemble empirical mode decomposition: a noise-assisted data analysis method. Advances in Adaptive Data Analysis, 1(1): 1-41 Xiu Peng, Chai Fei, Shi Lei, et al. 2010. A census of eddy activities in the South China Sea during 1993-2007. Journal of Geophysical Research, 115(C3): C03012 Yuan Dongliang, Han Weiqing, Hu Dunxin. 2006. Surface Kuroshio path in the Luzon Strait area derived from satellite remote sensing data. Journal of Geophysical Research, 111(C11): C11007 Yuan Yaochu, Liao Guanghong, Yang Chenghao. 2008. The Kuroshio near the Luzon Strait and circulation in the northern South China Sea during August and September 1994. Journal of Oceanography, 64(5): 777-788 Yuan Yaochu, Tseng Y-H, Yang Chenghao, et al. 2014. Variation in the Kuroshio intrusion: modeling and interpretation of observations collected around the Luzon Strait from July 2009 to March 2011. Journal of Geophysical Research, 119(6): 3447-3463 Zhang Huaimin, Bates J J, Reynolds R W. 2006. Assessment of composite global sampling: sea surface wind speed. Geophysical Research Letters, 33(17): L17714 Zhuang Wei, Xie Shangping, Wang Dongxiao, et al. 2010. Intraseasonal variability in sea surface height over the South China Sea. Journal of Geophysical Research, 115(C4): C04010 Zu Tingting, Wang Dongxiao, Yan Changxiang, et al. 2013. Evolution of an anticyclonic eddy southwest of Taiwan. Ocean Dynamics, 63(5): 519-531
点击查看大图
计量
- 文章访问数: 1320
- HTML全文浏览量: 63
- PDF下载量: 751
- 被引次数: 0