Impact of Indian Ocean Dipole on intraseasonal zonal currents at 90°E on the equator as revealed by self-organizing map

Geophysical Research Letters

Volumn 35, Issue 14, 2008, Pages

  Iskandar, Iskhaq ^a,b   Tozuka, Tomoki ^c   Masumoto, Yukio ^a,c   Yamagata, Toshio ^a,c  

^a JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

^b SRIWIJAYA UNIVERSITY   (Indonesia)

^c UNIVERSITY OF TOKYO   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

CONFORMAL MAPPING; FEATURE EXTRACTION; NETWORK PROTOCOLS; NEURAL NETWORKS; PATTERN RECOGNITION; SENSOR NETWORKS; TURBULENT FLOW;

EASTERN EQUATORIAL INDIAN OCEAN; HIGHER MODES; INDIAN OCEAN DIPOLE; NETWORK PATTERNS; SELF-ORGANIZING; WIND FORCING; ZONAL CURRENTS;

OCEAN CURRENTS;

ARTIFICIAL NEURAL NETWORK; ATMOSPHERE-OCEAN SYSTEM; PATTERN RECOGNITION; WIND FORCING;

INDIAN OCEAN; INDIAN OCEAN (EQUATORIAL);

EID: 53749107670     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2008GL033468     Document Type: Article

References (24)

1. Cane, M., and D. W. Moore (1981), A note on low-frequency equatorial basin modes, J. Phys. Oceanogr., 11, 1578-1584.
2. Fu, L.-L. (2007), Intraseasonal variability of the equatorial Indian Ocean observed from sea surface height, wind and temperature data, J. Phys. Oceanogr., 37, 188-202.
3. Gill, A. E. (1982), Atmosphere-Ocean Dynamics, Int. Geophys. Ser., vol. 30, 662 pp., Academic, San Diego, Calif.
4. Han, W. (2005), Origin and dynamics of the 90-day and 30-60-day variations in the equatorial Indian Ocean, J. Phys. Oceanogr., 35, 708-728.
5. Han, W., J. P. McCreary, D. L. T. Anderson, and A. J. Mariano (1999), On the dynamics of the eastward surface jets in the equatorial Indian Ocean, J. Phys. Oceanogr., 29, 2191-2209.
6. Han, W., D. M. Lawrence, and P. J. Webster (2001), Dynamical response of Sequatorial Indian Ocean to intraseasonal winds: Zonal flow, Geophys. Res. Lett., 28, 4215-4218.
7. Han, W., T. Shinoda, L.-L. Fu, and J. P. McCreary (2006), Impact of atmospheric intraseasonal oscillations on the Indian Ocean Dipole during the 1990s, J. Phys. Oceanogr., 36, 670-690.
8. Iskandar, I., T. Tozuka, H. Sasaki, Y. Masumoto, and T. Yamagata (2006), Intraseasonal variations of surface and subsurface currents off Java as simulated in a high-resolution ocean general circulation model, J. Geophys. Res., 111, C12015, doi:10.1029/2006JC003486.
9. Kohonen, T. (2001), Self-Organizing Maps, 3rd ed., 501 pp., Springer, Berlin.
10. Kohonen, T., J. Hynninen, J. Kangas, and J. Laaksonen (1995), SOM_PAK, The self-organizing map program package version 3.1, 27 pp., Lab. of Comp. and Inf. Sci., Helsinki Univ. of Technol., Helsinki.
11. Liu, Y., and R. H. Weisberg (2005), Patterns of ocean current variability on the West Florida Shelf using the self-organizing map, J. Geophys. Res., 110, C06003, doi:10.1029/2004JC002786.
12. Liu, Y., R. H. Weisberg, and R. He (2006), Sea surface temperature patterns on the West Florida Shelf using growing hierarchical the self-organizing maps, J. Atmos. Oceanic Technol., 23, 325-338.
13. Masumoto, Y., et al. (2004), A fifty-year eddy-resolving simulation of the world ocean-Preliminary outcomes of OFES (OGCM for the Earth Simulator), J. Earth Simulator, 1, 35-56.
14. Masumoto, Y., H. Hase, Y. Kuroda, H. Matsuura, and K. Takeuchi (2005), Intraseasonal variability in the upper layer currents observed in the eastern equatorial Indian Ocean, Geophys. Res. Lett., 32, L02607, doi:10.1029/2004GL021896.
15. Murtugudde, R., J. P. McCreary, and A. J. Busalacchi (2000), Oceanic processes associated with anomalous events in the Indian Ocean with relevance to 1997-1998, J. Geophys. Res., 105, 3295-3306.
16. O'Brien, J. J., and H. E. Hurlburt (1974), Equatorial jet in the Indian Ocean: Theory, Science, 184, 1075-1077.
17. Pacanowski, R. C., and S. M. Griffies (1999), The MOM 3 manual, Tech. Rep. 4, 680 pp, Geophys. Fluid Dyn. Lab. Ocean Group, Princeton, N. J.
18. Rao, S. A., and T. Yamagata (2004), Abrupt termination of Indian Ocean dipole events in response to intraseasonal disturbances, Geophys. Res. Lett., 31, L19306, doi:10.1029/2004GL020842.
19. Richardson, A. J., C. Risien, and F. A. Shillington (2003), Using self-organizing maps to identify patterns in satellite imagery, Prog. Oceanogr., 59, 223-239.
20. Saji, N. H., B. N. Goswami, P. N. Vinayachandran, and T. Yamagata (1999), A dipole mode in the tropical Indian Ocean, Nature, 401, 360-363.
21. Torrence, C., and G. P. Compo (1998), A practical guide to wavelet analysis, Bull. Am. Meteorol. Soc., 79, 61-78.
22. Vinayachandran, P. N., N. H. Saji, and T. Yamagata (1999), Response of the equatorial Indian Ocean to an unusual wind event during 1994, Geophys. Res. Lett., 26, 1613-1616.
23. Webster, P. J., A. M. Moore, J. P. Loschnigg, and R. R. Leben (1999), Coupled ocean-atmosphere dynamics in the Indian Ocean during 1997-1998, Nature, 401, 356-360.
24. Wyrtki, K. (1973), An equatorial jet in the Indian Ocean, Science, 181, 262-264.