Abstract
It is well known that Tropical cyclone (TC) activities over the Pacific are affected by El Niño events. In most studies El Niño phenomena have been separated into east Pacific warming (EPW) and central Pacific warming (CPW) based on the location of maximum SST anomaly. Since these two kinds of El Niño have different impacts on Pacific tropical cyclone activities, this study investigates different features of TC activities and the genesis potential index (GPI) during EPW years and CPW years. Four contributing factors, i.e., the low-level absolute vorticity, the relative humidity, the potential intensity and the vertical wind shear, are examined to determine which factors are most important in causing the anomalous TC activities. Our results show that during EPW years in July–August (JA0), TC activities are more frequent with stronger intensity over the Western North Pacific (WNP) and Eastern North Pacific (ENP). The maximum anomaly center of TC activities then drifts eastward significantly in September–October (SO0). However, centers of anomalous TC activity barely change from JA0 to SO0 during CPW years. In January-February-March (JFM1) of the decaying years of warming events, TC frequency and intensity both have positive anomaly over the South Pacific. The anomalies in EPW years have larger amplitude and wider spatial distribution than those in CPW years. These anomalous activities of TC are associated with GPI anomaly and the key factors affecting GPI anomaly for each ocean basin are quite different.
Similar content being viewed by others
References
Ashok, K., Behera, S. K., Rao, S. A., Weng, H., and Yamagata, T., 2007. El Niño Modoki and its possible teleconnection. Journal of Geophysical Research, 112, C11007, DOI: 10.1029/2006JC003798.
Bister, M., and Emanuel, K. A., 2002. Low frequency variability of tropical cyclone potential intensity 1. Interannual to interdecadal variability. Journal of Geophysical Research, 107: 4801 DOI: 10.1029/2001JD000776.
Camargo, S. J., and Sobel, A. H., 2005. Western North Pacific tropical cyclone intensity and ENSO. Journal of Climate, 18: 2996–3006, DOI: 10.1175/JCLI3457.1.
Camargo, S. J., Robertson, A. W., Barnston, A. G., and Ghil, M., 2008. Clustering of eastern North Pacific tropical cyclone tracks: ENSO and MJO effects. Geochemistry, Geophysics and Geosystems, 9, Q06V05 DOI: 10.1029/2007GC001861.
Chan, C. L., 2000. Tropical cyclone activity over the Western North Pacific associated with El Niño and La Niña events. Journal of Climate, 13: 2960–2972, DOI: 10.1175/1520-0442 (2000)013〈2960:TCAOTW〉2.0.CO;2.
Chen, G., and Tam, C. Y., 2010. Different impacts of two kinds of Pacific Ocean warming on tropical cyclone frequency over the western North Pacific. Geophysical Research Letters, 37, L01803 DOI: 10.1029/2009GL041708.
Chen, G., and Huang, R., 2006. The effect of warm pool thermal states on tropical cyclone in West Northwest Pacific. Journal of Tropical Meteorology, 22(6): 527–532.
Chen, T. C., Wang, S. Y., and Yen, M. C., 2006. Interannual variation of the tropical cyclone activity over the Western North Pacific. Journal of Climate, 19: 5709–5720, DOI: 10.1175/JCLI3934.1.
Clark, J. D., and Chu, P. S., 2002. Interannual variation of tropical cyclone activity over the central North Pacific. Journal of the Meteorological Society of Japan, 80(3): 403–418.
Du, Y., Yang, L., and Xie, S.-P., 2011. Tropical Indian Ocean influence on Northwest Pacific tropical cyclones in summer following strong El Niño. Journal of Climate, 24(1): 315–322.
Emanuel, K. A., and Nolan, D. S., 2004. Tropical cyclones activity and the global climate system. Presented at 26th Conference on Hurricanes and Tropical Meteorology, American Meteorological Society, Miami, Fla, 240–241.
Evans, J. L., and Allan, R. J., 2006. El Niño Southern Oscillation modification to the structure of the monsoon and tropical cyclone activity in the Australasian region. International Journal of Climatology, 12(6): 611–623 DOI: 10.1002/joc.3370120607.
Huang, F., and Xu, S., 2010. Super typhoon activity over the western North Pacific and its relationship with ENSO. Journal of Ocean University of China, 9(2): 123–128 DOI: 10.1007/s11802-010-0123-8.
Irwin, R. P., and Davis, R. E., 1999. The relationship between the Southern Oscillation Index and tropical cyclone tracks in the eastern North Pacific. Geophysical Research Letters, 26(15): 2251–2254 DOI: 10.1029/1999GL900533.
Kao, H.-Y., and Yu, J.-Y., 2009. Contrasting Eastern-Pacific and Central-Pacific types of ENSO. Journal of Climate, 22: 615–632 DOI: 10.1175/2008JCLI2309.1.
Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Saha, S., White, G., Woollen, J., Zhu, Y., Leetmaa, A., Reynolds, R., Chelliah, M., Ebisuzaki, W., Higgins, W., Janowiak, J., Mo, K. C., Ropelewski, C., Wang, J., Jenne, R., and Joseph, D., 1996. The NCEP/NCAR 40-year reanalysis project. Bulletin of the American Meteorological Society, 77: 437–470 DOI: 10.1175/1520-0477(1996)077〈0437:TNYRP〉2.0.CO;2.
Kim, H.-M., Webster, P. J., and Curry, J. A., 2009. Impact of shifting patterns of Pacific Ocean warming on north Atlantic tropical cyclones. Science, 325: 77–79, DOI: 10.1126/science.1174062.
Kim, H. M., Webster, P. J., and Curry, J. A., 2011a. Modulation of North Pacific tropical cyclone activity by three phases of ENSO. Journal of Climate, 24: 1839–1849, DOI: 10.1175/2010JCLI3939.1.
Kim, W., Yeh, S.-W., Kim, J.-H., Kug, J.-S., and Kwon, M., 2011b. The unique 2009–2010 El Niño event: A fast phase transition of warm pool El Niño to La Niña. Geophysical Research Letters, 38, L15809 DOI: 10.1029/2011GL048521.
Kug, J.-S., Jin, F.-F., and An, S.-I., 2009. Two types of El Niño events: Cold tongue El Niño and warm pool El Niño. Journal of Climate, 22: 1499–1515 DOI: 10.1175/2008JCLI2624.1.
Kuleshov, Y., Chane Ming, F., Qi, L., Chouaibou, I., Hoareau, C., and Roux, F., 2009. Tropical cyclone genesis in the Southern Hemisphere and its relationship with the ENSO. Annales Geophysicae, 27: 2523–2538, DOI: 10.5194/angeo-27-2523-2009.
Larkin, N. K., and Harrison, D. E., 2005. Global seasonal temperature and precipitation anomalies during El Niño autumn and winter. Geophysical Research Letters, 32, L13705 DOI: 10.1029/2005GL022738.
Liu, K. S., and Chan, J. C. L., 2010. Interannual variation of southern hemisphere tropical cyclone activity and seasonal forecast of tropical cyclone number in the Australian region. International Journal of Climatology, 32(2): 190–202, DOI: 10.1002/joc.2259.
Ramsay, H. A., Leslie, L. M., Lamb, P. J., Richman, M. B., and Leplastrier, M., 2008. Interannual variability of tropical cyclones in the Australian region: Role of large-scale environment. Journal of Climate, 21: 1083–1103 DOI: 10.1175/2007JCLI1970.1.
Ratnam, J. V., Behera, S. K., Masumoto, Y., Takahashi, K., and Yamagata, T., 2012. Anomalous climatic conditions associated with the El Niño Modoki during boreal winter of 2009. Climate Dynamics, 39: 227–238, DOI: 10.1007/s00382-011-1108-z.
Wang, B., Wu, R., and Fu, X., 2000. Pacific-East Asia teleconnection: How does ENSO affect East Asian climate? Journal of Climate, 13: 1517–1536, DOI: 10.1175/1520-0442(2000)013〈1517:PEATHD〉2.0.CO;2.
Wang, B., and Chan, J. C. L., 2002. How strong ENSO affect tropical storm activity over the Western North Pacific. Journal of Climate, 15: 1643–1658, DOI: 10.1175/1520-0442(2002)015〈1643:HSEEAT〉2.0.CO;2.
Wang, B., Yang, Y., Ding, Q., Murakami, H., and Huang, F., 2010. Climate control of the global tropical storm days (1965–2008). Geophysical Research Letters, 37, L07704, DOI: 10.1029/2010GL042487.
Wang, C., and Wang, X., 2013a. Classifying El Niño Modoki I and II by different impacts on rainfall in southern China and typhoon tracks. Journal of Climate, 26: 1322–1338, DOI: 10.1175/JCLI-D-12-00107.1.
Wang, X., Zhou, W., Li, C., and Wang, D., 2014. Comparison of the impact of two types of El Niño on tropical cyclone genesis over the South China Sea. International Journal of Climatology, 34(8): 2651–2660, DOI: 10.1002/joc.3865.
Wang, X., and Wang, C., 2013b. Different impacts of various El Niño events on the Indian Ocean Dipole. Climate Dynamics, DOI: 10.1007/s00382-013-1711-2.
Yeh, S.-W., Kug, J.-S., Dewitte, B., HoKwon, M., Kirtman, B. P., and Jin, F.-F., 2009. El Niño in a changing climate. Nature, 461: 511–515, DOI: 10.1038/nature08316.
Zhao, H., Wu, L., and Zhou, W., 2011. Interannual changes of tropical cyclone intensity in the western North Pacific. Journal of the Meteorology Society of Japan, 89: 243–253 DOI: 10.2151/jmsj.2011-305.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Xu, S., Huang, F. Impacts of the two types of El Niño on Pacific tropical cyclone activity. J. Ocean Univ. China 14, 191–198 (2015). https://doi.org/10.1007/s11802-015-2421-7
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11802-015-2421-7