| PRELIMINARY ANALYSIS OF EFFECTS OF OLR FIELDS ON ANNUAL FREQUENCY OF TROPICAL CYCLONE IN FUJIAN |
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| 作者姓名： | 高建芸 李永尧 宋德众 |
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| 作者单位： | Climate Center of Fujian Province |
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| 基金项目： | Core national scientific project in the 9th five-year development plan (96-908-05-06-12) |
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| 摘 要： | Outgoing Longwave Radiation (OLR) has been shown to play an important role in climatic diagnosis
and long-term prediction and research. With the OLR data 1974 ~ 1997 as observed by satellites, the
characteristics are computed. The results are used to depict the location and intensity of the subtropical high in
the study of the relationship between the annual frequency of tropical cyclones affecting the Fujian province and
ITCZ / subtropical high. It is shown that in years of fewer (more) tropical cyclones, the ITCZ is southward
(northward) located with weaker (stronger) intensity, and the subtropical high is southward (northward). As
shown in the relationship between the anomalous years of tropical cyclones and characteristics of preceding
OLR fields, the OLR anomalies are just oppositely distributed in the Pacific Ocean for years of more (fewer)
tropical cyclones. In other words, the years of fewer (more) tropical cyclones are associated with positive
anomalies of OLR in the tropical west Pacific but negative (positive) anomalies in the equatorial central and
eastern Pacific. It is hoped that our study be setting foundation for short-term climatological prediction of tropical cyclones.
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| 关 键 词： | tropical cyclones anomalies OLR fields characteristic analysis |
PRELIMINARY ANALYSIS OF EFFECTS OF OLR FIELDS ON ANNUAL FREQUENCY OF TROPICAL CYCLONE IN FUJIAN |
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| GAO Jian-yun,LI Yong-yao and SONG De-zhong.PRELIMINARY ANALYSIS OF EFFECTS OF OLR FIELDS ON ANNUAL FREQUENCY OF TROPICAL CYCLONE IN FUJIAN[J].Journal of Tropical Meteorology,2001,7(1):86-92. |
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| Authors: | GAO Jian-yun LI Yong-yao and SONG De-zhong |
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| Institution: | Climate Center of Fujian Province, |
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| Abstract: | Outgoing Longwave Radiation (OLR) has been shown to play an important role in climatic diagnosis and long-term prediction and research. With the OLR data 1974 ~ 1997 as observed by satellites, the characteristics are computed. The results are used to depict the location and intensity of the subtropical high in the study of the relationship between the annual frequency of tropical cyclones affecting the Fujian province and ITCZ / subtropical high. It is shown that in years of fewer (more) tropical cyclones, the ITCZ is southward (northward) located with weaker (stronger) intensity, and the subtropical high is southward (northward). As shown in the relationship between the anomalous years of tropical cyclones and characteristics of preceding OLR fields, the OLR anomalies are just oppositely distributed in the Pacific Ocean for years of more (fewer) tropical cyclones. In other words, the years of fewer (more) tropical cyclones are associated with positive anomalies of OLR in the tropical west Pacific but negative (positive) anomalies in the equatorial central and eastern Pacific. It is hoped that our study be setting foundation for short-term climatological prediction of tropical cyclones. |
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| Keywords: | tropical cyclones anomalies OLR fields characteristic analysis |
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