Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Study on the Recurvature of Typhoons

태풍의 전향에 관한 연구

  • Seol, Dong-Il (Division of Navigation Science, Korea Maritime and Ocean University)
  • 설동일 (한국해양대학교 항해학부)
  • Received : 2014.11.18
  • Accepted : 2015.04.27
  • Published : 2015.04.30
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Abstract

This paper analyzed recurvature of typhoons by using 20 years meteorological data from 1992 to 2011. The results of this study are as follows. Yearly numbers of typhoon recurvature showed decreasing tendency gradually with decrease of numbers of typhoon occurrence. Typhoons recurvature were especially many between August and October and number of typhoon recurvature between July and October was occupied counts for 71 % of the whole typhoon recurvature. Life of typhoon recurvature in the North Pacific was most frequent at 5 days and 7 days. Mean life of typhoon recurvature was 6.8 days and this numerical value was longer than mean life of the whole typhoon including recuevatute and non-recurvature. Most of typhoons recurvature changed their direction north-eastwards in 20-34 degrees north latitude and 120-139 degrees east longitude. Mean latitude recurvature and longitude recurvature were 25 degrees north latitude and 135 degrees east longitude, respectively.

본 연구에서는 최근 20년간(1992-2011년)의 기상 데이터를 이용하여 태풍의 전향에 대하여 분석하였다. 연구 결과, 연별 전향하는 태풍의 수는 연별 태풍 발생 수의 감소와 함께 서서히 줄어드는 경향을 보였다. 전향하는 태풍은 특히 8-10월에 많고, 7-10월에 전향하는 태풍의 수는 전체 전향 태풍의 71 %를 차지하였다. 남중국해를 제외한 북태평양에서 전향한 태풍의 수명은 5일과 7일이 가장 많았고, 전향한 태풍의 평균 수명은 6.8일이었다. 이는 전향, 비전향의 모든 태풍의 평균 수명보다 다소 긴 값이다. 전향 태풍의 대부분은 태풍으로 발달한 후 5일 이내에 북위 20-34도, 동경 120-139도에서 북동쪽으로 전향하였다. 평균 전향 위도는 북위 25도, 평균 전향 경도는 동경 135도이었다.

Keywords

References

  1. Bengtsson, L., M. Botzet and M. Esch(1996), Will greenhouse gas-induced warming over the next 50 years lead to higher frequency and greater intensity of hurricanes?, Tellus, 48A, pp. 57-73.
  2. Fukuchi, A.(1997), Ocean Meteorology Class, Seizantou press, pp. 130-132.
  3. Haarsma, R. J., J. F. B. Mitchell and C. A. Senior(1993), Tropical disturbances in a GCM, Climate Dyn., 8, pp. 247-257.
  4. Knutson, T. R., R. E. Tuleya and Y. Kurihara(1998), Simulated increase of hurricane intensities in a $CO_2$-warmed climate, Science, 279, pp. 1018-1020. https://doi.org/10.1126/science.279.5353.1018
  5. Min, B. E.(1986), Maritime Meteorology, Sejong press, p. 298.
  6. Murayama, K.(2006), Introduction of Typhoon, Mountain and Valley press, pp. 51-58.
  7. Oouchi, K., J. Yoshimura, H. Yoshimura, R. Mizuta, S. Kusunoki and A. Noda(2006), Tropical cyclone climatology in a global-warming climate as simulated in a 20km-mesh global atmospheric model: Frequency and wind intensity analyses, J. Meteor. Soc., Japan, 84, pp. 259-276. https://doi.org/10.2151/jmsj.84.259
  8. Seol, D. I.(2010), Global warming and trends of typhoon variation, Journal of Navigation and Port Research, Vol. 34, No. 6, pp. 453-458. https://doi.org/10.5394/KINPR.2010.34.6.453
  9. Seol, D. I.(2013), Maritime Meteorology, Dasom press, pp. 280-281.
  10. Seol, D. I.(2014), Analytical study on the peak Stage of typhoons, Journal of Navigation and Port Research, Vol. 38, No. 6, pp. 695-700. https://doi.org/10.5394/KINPR.2014.38.6.695
  11. Sugi, M., A. Noda and N. Sato(1997), Influence of the global warming on tropical cyclone climatology: An experiment with the JMA global model, WMO/TD-No. 792, 7.69-7.70.
  12. Sugi, M., A. Noda and N. Sato(2002), Influence of the global warming on tropical cyclone climatology: An experiment with the JMA global model, J. Meteor. Soc., Japan, 80, pp. 249-272. https://doi.org/10.2151/jmsj.80.249