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자료유형
학술저널
저자정보
임명순 (기상청) 문일주 (제주대학교) 차유미 (기상청) 장기호 (국립기상연구소) 강기룡 (기상청) 변건영 (기상청) 신도식 (기상청) 김지영 (기상청)
저널정보
한국기상학회 대기 대기 Vol.24 No.3
발행연도
2014.9
수록면
283 - 301 (19page)

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In 2010, only 14 tropical cyclones (TCs) were generated over the western North Pacific (WNP), which was the smallest since 1951. This study summarizes characteristics of TCs generated in 2010 over the WNP and investigates the causes of the record-breaking TC genesis. A long-term variation of TC activity in the WNP and verification of official track forecast in 2010 are also examined. Monthly tropical sea surface temperature (SST) anomaly data reveal that El Nino/Southern Oscillation (ENSO) event in 2010 was shifted from El Nino to La Nina in June and the La Nina event was strong and continued to the end of the year. We found that these tropical environments leaded to unfavorable conditions for TC formation at main TC development area prior to May and at tropics east of 140oE during summer mostly due to low SST, weak convection, and strong vertical wind shear in those areas. The similar ENSO event (in shifting time and La Nina intensity) also occurred in 1998, which was the second smallest TC genesis year (16 TCs) since 1951. The common point of the two years suggests that the ENSO episode shifting from El Nino to strong La Nina in summer leads to extremely low TC genesis during La Nina although more samples are needed for confidence. In 2010, three TCs, DIANMU (1004), KOMPASU (1007) and MALOU (1009), influenced the Korean Peninsula (KP) in spite of low total TC genesis. These TCs were all generated at high latitude above 20°N and arrived over the KP in short time. Among them, KOMPASU (1007) brought the most serious damage to the KP due to strong wind. For 14 TCs in 2010, mean official track forecast error of the Korea Meteorological Administration (KMA) for 48 hours was 215 km, which was the highest among other foreign agencies although the errors are generally decreasing for last 10 years, suggesting that more efforts are needed to improve the forecast skill.

목차

Abstract
1. 서론
2. 자료 및 분석방법
3. 열대지역 대기대순환과 해양의 특징
4. 북서태평양 발생 태풍의 특징
5. 한반도 영향 태풍의 특징
6. 태풍진로 예보정확도
7. 극소 태풍발생 시기의 특징
8. 요약 및 결론
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2015-450-002731509