Interannual variations of North Equatorial Current transport in the Pacific Ocean during two types of El Niño

Guoli Wu; Fangguo Zhai; Dunxin Hu

doi:10.1007/s00343-015-4352-y

Your Location：

Home >

Browse articles >

Interannual variations of North Equatorial Current transport in the Pacific Ocean during two types of El Niño

Updated：2023-05-16

- Interannual variations of North Equatorial Current transport in the Pacific Ocean during two types of El Niño
- Journal of Oceanology and Limnology Vol. 34, Issue 3, Pages: 585-596(2016)
- Affiliations：
  
  1. Key Laboratory of Ocean Circulation and Waves Institute of Oceanology Chinese Academy of Sciences
  2. University of Chinese Academy of Sciences
  3. College of Science China University of Petroleum
  4. College of Oceanic and Atmospheric Sciences Ocean University of China
- Author bio：
- Funds：
- DOI：10.1007/s00343-015-4352-y
  CLC：
- Online First：21 October 2015，
  
  Published：2016
- Accepted：
Scan QR Code
Wu, G., Zhai, F. & Hu, D. Interannual variations of North Equatorial Current transport in the Pacific Ocean during two types of El Niño., Chin. J. Ocean. Limnol. 34, 585–596 (2016). https://doi.org/10.1007/s00343-015-4352-y
DOI：

Wu, G., Zhai, F. & Hu, D. Interannual variations of North Equatorial Current transport in the Pacific Ocean during two types of El Niño., Chin. J. Ocean. Limnol. 34, 585–596 (2016). https://doi.org/10.1007/s00343-015-4352-y DOI：

摘要

Abstract

Interannual variations of Pacific North Equatorial Current (NEC) transport during eastern-Pacific El Niños (EP-El Niños) and central-Pacific El Niños (CP-El Niños) are investigated by composite analysis with European Centre for Medium-Range Weather Forecast Ocean Analysis/Reanalysis System 3. During EP-El Niño

NEC transport shows significant positive anomalies from the developing to decay phases

with the largest anomalies around the mature phase. During CP-El Niño

however

the NEC transport only shows positive anomalies before the mature phase

with much weaker anomalies than those during EP-El Niño. The NEC transport variations are strongly associated with variations of the tropical gyre and wind forcing in the tropical North Pacific. During EP-El Niño

strong westerly wind anomalies and positive wind stress curl anomalies in the tropical North Pacific induce local upward Ekman pumping and westward-propagating upwelling Rossby waves in the ocean

lowering the sea surface height and generating a cyclonic gyre anomaly in the western tropical Pacific. During CP-El Niño

however

strength of the wind and associated Ekman pumping velocity are very weak. Negative sea surface height and cyclonic flow anomalies are slightly north of those during EP El Niño.

关键词

Keywords

references

Ashok K, Behera S K, Rao S A, Weng H Y, Yamagata T. 2007. El Niño Modoki and its possible teleconnection. J. Geophys. Res., 112 (C11): C11007.

Balmaseda M A, Vidard A, Anderson D L T. 2008. The ECMWF ocean analysis system: ORA-S3. Mon. Wea. Rev., 136 (8): 3 018–3 034.

Capotondi A, Alexander M A, Deser C. 2003. Why are there Rossby wave maxima in the Pacific at 10°S and 13°N? J. Phys. Oceanogr., 33 (8): 1 549–1 563.

Chelton D B, De Szoeke R A, Schlax M G, El Naggar K, Siwertz N. 1998. Geographical variability of the first baroclinic Rossby radius of deformation. J. Phys. Oceanogr., 28 (3): 433–460.

Fu C B, Fletcher J. 1985. Two patterns of Equatorial warming associated with El Niño. Chin. Sci. Bull., 30 (10): 1 360–1 364.

Gordon A L. 1986. Interocean exchange of thermocline water. J. Geophys. Res., 91 (C4): 5 037–5 046.

Gu Y H. 1996. Zonal volume transports at 137ºE in the northwestern Pacific. Oceanol. Limnol. Sinica, 27 (1): 79–85.

Hosoda S, Ohira T, Nakamura T. 2008. A monthly mean dataset of global oceanic temperature and salinity derived from Argo float observations. JAMSTEC Rep. Res. Dev., 8: 47–59.

Hsin Y C, Qiu B. 2012. The impact of Eastern-Pacific versus Central-Pacific El Niños on the north equatorial countercurrent in the Pacific Ocean. J. Geophys. Res., 117 (C11): C11017.

Hu D X, Cui M C. 1989. The western boundary current in the far western Pacific Ocean. In: Picaut J, Lukas R, Delcroix T eds. Proceedings of Western International Meeting and Workshop on TOGA COARE, May 24-30, 1989. Noumea, New Caledonia. p.123–134.

Hu D X, Cui M C. 1991. The western boundary current of the Pacific and its role in the climate. Chin. J. Oceanol. Limnol., 9 (1): 1–14.

Kao H Y, Yu J Y. 2009. Contrasting eastern-Pacific and central-Pacific types of ENSO. J. Clim ate, 22 (3): 615–632.

Kashino Y, España N, Syamsudin F, Richards K J, Jensen T, Dutrieux P, Ishida A. 2009. Observations of the north equatorial current, mindanao current, and kuroshio current system during the 2006/07 El Niño and 2007/08 La Niña. J. Oceanogr., 65 (3): 325–333.

Kessler W S. 1990. Observations of long Rossby waves in the northern tropical Pacific. J. Geophys. Res., 95 (C4): 5 183–5 217.

Kim Y Y, Qu T D, Jensen T, Miyama T, Misudera H, Kang H W, Ishida A. 2004. Seasonal and interannual variations of the north equatorial current bifurcation in a highresolution OGCM. J. Geophys. Res., 109 (C3): C03040.

Kug J S, Jin F F, An S I. 2009. Two types of El Niño events: cold tongue El Niño and warm pool El Niño. J. Clim ate, 22 (6): 1 499–1 515.

Larkin N K, Harrison D E. 2005. On the definition of El Niño and associated seasonal average U. S. weather anomalies. Geophys. Res. Lett., 32 (13): L13705.

Meyers G. 1979. On the annual Rossby wave in the tropical North Pacific Ocean. J. Phys. Oceanogr., 9 (4): 663–674.

Nitani H. 1972. Beginning of the Kuroshio. In: Stommel H, Yoshida K eds. Kuroshio: Physical Aspects of the Japan Current. Univ. of Washington Press, Seattle, Wash. p.129–163.

Qiu B, Chen S M. 2010. Interannual-to-decadal variability in the bifurcation of the North Equatorial Current offthe Philippines. J. Phys. Oceanogr., 40 (11): 2 525–2 538.

Qiu B, Joyce T M. 1992. Interannual variability in the mid-and low-latitude Western North Pacific. J. Phys. Oceanogr., 22 (9): 1 062–1 079.

Qiu B, Lukas R. 1996. Seasonal and interannual variability of the North Equatorial Current, the Mindanao Current, and the Kuroshio along the Pacific western boundary. J. Geophys. Res., 101 (C5): 12 315–12 330.

Qu T D, Lukas R. 2003. The bifurcation of the North Equatorial Current in the Pacific. J. Phys. Oceanogr., 33 (1): 5–18.

Qu T D, Meyers G, Godfrey J S, Hu D X. 1997. Upper ocean dynamics and its role in maintaining the annual mean western Pacific warm pool in a global GCM. Int. J. Climatol., 17 (7): 711–724.

Qu T D, Mitsudera H, Yamagata T. 1998. On the western boundary currents in the Philippine Sea. J. Geophys. Res., 103 (C4): 7 537–7 548.

Rasmusson E M, Carpenter T H. 1982. Variations in tropical sea surface temperature and surface wind fields associated with the Southern Oscillation/El Niño. Mon. Wea. Rev., 110 (5): 354–384.

Takahashi K, Montecinos A, Goubanova K, Dewitte B. 2011. ENSO regimes: reinterpreting the canonical and Modoki El Niño. Geophys. Res. Lett., 38 (10): L10704.

Toole J M, Millard R C, Wang Z, Pu S. 1990. Observations of the Pacific North Equatorial current bifurcation at the Philippine coast. J. Phys. Oceanogr., 20 (2): 307–318.

Toole J M, Zou E, Millard R C. 1988. On the circulation of the upper waters in the western equatorial Pacific Ocean. Deep Sea Res. A: Oceanpgr. Res. Paper., 35 (9): 1 451–1 482.

Trenberth K E 1997. The definition of El Niño. Bull. Am. Meteor. Soc., 78 (12): 2 771–2 777.

Trenberth K E, Stepaniak D P. 2001. Indices of El Niño evolution. J. Clim ate, 14 (8): 1 697–1 701.

Wang Q Y, Hu D X. 2006. Bifurcation of the north equatorial current derived from altimetry in the Pacific Ocean. J. Hydrodyn. B, 18 (5): 620–626.

Xie S P, Hu K M, Hafner J, Tokinaga H, Du Y, Huang G, Sampe T. 2009. Indian Ocean capacitor effect on Indo-Western Pacific climate during the summer following El Niño. J. Clim ate, 22 (3): 730–747.

Yaremchuk M, Qu T D. 2004. Seasonal variability of the largescale currents near the coast of the philippines. J. Phys. Oceanogr., 34 (4): 844–855.

Zhai F G, Hu D X, Qu T D. 2013. Decadal variations of the North Equatorial Current in the Pacific at 137°E. J. Geophys. Res., 118 (10): 4 989–5 006.

Zhai F G, Hu D X. 2012. Interannual variability of transport and bifurcation of the North Equatorial Current in the tropical North Pacific Ocean. Chin. J. Oceanol. Limnol., 30 (1): 177–185.

Zhai F G, Hu D X. 2013. Revisit the interannual variability of the North Equatorial Current transport with ECMWF ORA-S3. J. Geophys. Res., 118 (3): 1 349–1 366.

Views

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Microplastic transport from a wastewater treatment plant into Qiantang River, an estuarine river

The North Equatorial Current/Undercurrent volume transport and its 40‐day variability from a mooring array along 130°E

Interannual variation of nutrients along a transect across the Kuroshio and shelf area in the East China Sea over 40 years

Relationship between oceanic heat content and sea surface height on interannual time scale

Parametric Model of Lubricant Particle Trajectory inAnnulus Inter-Spools

Related Author

Wenlu ZHAO

Zhiheng LI

Wei HUANG

Xiaoying ZHOU

Wenzhou FAN

Yong LIU

Yuan GAO

Luyi ZHANG

Related Institution

Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, Ministry of Natural Resources

Zhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design)

School of Environmental Science and Engineering, Zhejiang Gongshang University

Laboratory for Ocean and Climate Dynamics, Pilot National Laboratory for Marine Science and Technology (Qingdao)

Center for Ocean Mega-Science, Chinese Academy of Sciences

Address：Editorial Office of JOL, 88 Haijun Rd. Qingdao, 266000, China
Tel：+86-532-82898754 Email：jol@qdio.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰