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. 相似文献